| // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| #include "vm/globals.h" // Needed here to get TARGET_ARCH_X64. |
| #if defined(TARGET_ARCH_X64) |
| |
| #include "vm/intermediate_language.h" |
| |
| #include "vm/dart_entry.h" |
| #include "vm/flow_graph.h" |
| #include "vm/flow_graph_compiler.h" |
| #include "vm/locations.h" |
| #include "vm/object_store.h" |
| #include "vm/parser.h" |
| #include "vm/stack_frame.h" |
| #include "vm/stub_code.h" |
| #include "vm/symbols.h" |
| |
| #define __ compiler->assembler()-> |
| |
| namespace dart { |
| |
| DECLARE_FLAG(bool, emit_edge_counters); |
| DECLARE_FLAG(int, optimization_counter_threshold); |
| DECLARE_FLAG(bool, propagate_ic_data); |
| DECLARE_FLAG(bool, throw_on_javascript_int_overflow); |
| DECLARE_FLAG(bool, use_osr); |
| |
| // Generic summary for call instructions that have all arguments pushed |
| // on the stack and return the result in a fixed register RAX. |
| LocationSummary* Instruction::MakeCallSummary() { |
| LocationSummary* result = new LocationSummary( |
| Isolate::Current(), 0, 0, LocationSummary::kCall); |
| result->set_out(0, Location::RegisterLocation(RAX)); |
| return result; |
| } |
| |
| |
| LocationSummary* PushArgumentInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 1; |
| const intptr_t kNumTemps= 0; |
| LocationSummary* locs = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| locs->set_in(0, Location::AnyOrConstant(value())); |
| return locs; |
| } |
| |
| |
| void PushArgumentInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| // In SSA mode, we need an explicit push. Nothing to do in non-SSA mode |
| // where PushArgument is handled by BindInstr::EmitNativeCode. |
| if (compiler->is_optimizing()) { |
| Location value = locs()->in(0); |
| if (value.IsRegister()) { |
| __ pushq(value.reg()); |
| } else if (value.IsConstant()) { |
| __ PushObject(value.constant(), PP); |
| } else { |
| ASSERT(value.IsStackSlot()); |
| __ pushq(value.ToStackSlotAddress()); |
| } |
| } |
| } |
| |
| |
| LocationSummary* ReturnInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 1; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* locs = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| locs->set_in(0, Location::RegisterLocation(RAX)); |
| return locs; |
| } |
| |
| |
| // Attempt optimized compilation at return instruction instead of at the entry. |
| // The entry needs to be patchable, no inlined objects are allowed in the area |
| // that will be overwritten by the patch instruction: a jump). |
| void ReturnInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| Register result = locs()->in(0).reg(); |
| ASSERT(result == RAX); |
| #if defined(DEBUG) |
| __ Comment("Stack Check"); |
| Label done; |
| const intptr_t fp_sp_dist = |
| (kFirstLocalSlotFromFp + 1 - compiler->StackSize()) * kWordSize; |
| ASSERT(fp_sp_dist <= 0); |
| __ movq(RDI, RSP); |
| __ subq(RDI, RBP); |
| __ CompareImmediate(RDI, Immediate(fp_sp_dist), PP); |
| __ j(EQUAL, &done, Assembler::kNearJump); |
| __ int3(); |
| __ Bind(&done); |
| #endif |
| __ LeaveDartFrame(); |
| __ ret(); |
| } |
| |
| |
| static Condition NegateCondition(Condition condition) { |
| switch (condition) { |
| case EQUAL: return NOT_EQUAL; |
| case NOT_EQUAL: return EQUAL; |
| case LESS: return GREATER_EQUAL; |
| case LESS_EQUAL: return GREATER; |
| case GREATER: return LESS_EQUAL; |
| case GREATER_EQUAL: return LESS; |
| case BELOW: return ABOVE_EQUAL; |
| case BELOW_EQUAL: return ABOVE; |
| case ABOVE: return BELOW_EQUAL; |
| case ABOVE_EQUAL: return BELOW; |
| default: |
| UNIMPLEMENTED(); |
| return EQUAL; |
| } |
| } |
| |
| |
| // Detect pattern when one value is zero and another is a power of 2. |
| static bool IsPowerOfTwoKind(intptr_t v1, intptr_t v2) { |
| return (Utils::IsPowerOfTwo(v1) && (v2 == 0)) || |
| (Utils::IsPowerOfTwo(v2) && (v1 == 0)); |
| } |
| |
| |
| LocationSummary* IfThenElseInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| comparison()->InitializeLocationSummary(isolate, opt); |
| // TODO(vegorov): support byte register constraints in the register allocator. |
| comparison()->locs()->set_out(0, Location::RegisterLocation(RDX)); |
| return comparison()->locs(); |
| } |
| |
| |
| void IfThenElseInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| ASSERT(locs()->out(0).reg() == RDX); |
| |
| // Clear upper part of the out register. We are going to use setcc on it |
| // which is a byte move. |
| __ xorq(RDX, RDX); |
| |
| // Emit comparison code. This must not overwrite the result register. |
| BranchLabels labels = { NULL, NULL, NULL }; |
| Condition true_condition = comparison()->EmitComparisonCode(compiler, labels); |
| |
| const bool is_power_of_two_kind = IsPowerOfTwoKind(if_true_, if_false_); |
| |
| intptr_t true_value = if_true_; |
| intptr_t false_value = if_false_; |
| |
| if (is_power_of_two_kind) { |
| if (true_value == 0) { |
| // We need to have zero in RDX on true_condition. |
| true_condition = NegateCondition(true_condition); |
| } |
| } else { |
| if (true_value == 0) { |
| // Swap values so that false_value is zero. |
| intptr_t temp = true_value; |
| true_value = false_value; |
| false_value = temp; |
| } else { |
| true_condition = NegateCondition(true_condition); |
| } |
| } |
| |
| __ setcc(true_condition, DL); |
| |
| if (is_power_of_two_kind) { |
| const intptr_t shift = |
| Utils::ShiftForPowerOfTwo(Utils::Maximum(true_value, false_value)); |
| __ shlq(RDX, Immediate(shift + kSmiTagSize)); |
| } else { |
| __ decq(RDX); |
| __ AndImmediate(RDX, |
| Immediate(Smi::RawValue(true_value) - Smi::RawValue(false_value)), PP); |
| if (false_value != 0) { |
| __ AddImmediate(RDX, Immediate(Smi::RawValue(false_value)), PP); |
| } |
| } |
| } |
| |
| |
| LocationSummary* LoadLocalInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 0; |
| const intptr_t stack_index = (local().index() < 0) |
| ? kFirstLocalSlotFromFp - local().index() |
| : kParamEndSlotFromFp - local().index(); |
| return LocationSummary::Make(isolate, |
| kNumInputs, |
| Location::StackSlot(stack_index), |
| LocationSummary::kNoCall); |
| } |
| |
| |
| void LoadLocalInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| ASSERT(!compiler->is_optimizing()); |
| // Nothing to do. |
| } |
| |
| |
| LocationSummary* StoreLocalInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 1; |
| return LocationSummary::Make(isolate, |
| kNumInputs, |
| Location::SameAsFirstInput(), |
| LocationSummary::kNoCall); |
| } |
| |
| |
| void StoreLocalInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| Register value = locs()->in(0).reg(); |
| Register result = locs()->out(0).reg(); |
| ASSERT(result == value); // Assert that register assignment is correct. |
| __ movq(Address(RBP, local().index() * kWordSize), value); |
| } |
| |
| |
| LocationSummary* ConstantInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 0; |
| return LocationSummary::Make(isolate, |
| kNumInputs, |
| Location::RequiresRegister(), |
| LocationSummary::kNoCall); |
| } |
| |
| |
| void ConstantInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| // The register allocator drops constant definitions that have no uses. |
| if (!locs()->out(0).IsInvalid()) { |
| Register result = locs()->out(0).reg(); |
| __ LoadObject(result, value(), PP); |
| } |
| } |
| |
| |
| LocationSummary* UnboxedConstantInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 0; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* locs = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| locs->set_out(0, Location::RequiresFpuRegister()); |
| return locs; |
| } |
| |
| |
| void UnboxedConstantInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| // The register allocator drops constant definitions that have no uses. |
| if (!locs()->out(0).IsInvalid()) { |
| XmmRegister result = locs()->out(0).fpu_reg(); |
| if (Utils::DoublesBitEqual(Double::Cast(value()).value(), 0.0)) { |
| __ xorps(result, result); |
| } else { |
| __ LoadObject(TMP, value(), PP); |
| __ movsd(result, FieldAddress(TMP, Double::value_offset())); |
| } |
| } |
| } |
| |
| |
| LocationSummary* AssertAssignableInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 3; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kCall); |
| summary->set_in(0, Location::RegisterLocation(RAX)); // Value. |
| summary->set_in(1, Location::RegisterLocation(RCX)); // Instantiator. |
| summary->set_in(2, Location::RegisterLocation(RDX)); // Type arguments. |
| summary->set_out(0, Location::RegisterLocation(RAX)); |
| return summary; |
| } |
| |
| |
| LocationSummary* AssertBooleanInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 1; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* locs = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kCall); |
| locs->set_in(0, Location::RegisterLocation(RAX)); |
| locs->set_out(0, Location::RegisterLocation(RAX)); |
| return locs; |
| } |
| |
| |
| static void EmitAssertBoolean(Register reg, |
| intptr_t token_pos, |
| intptr_t deopt_id, |
| LocationSummary* locs, |
| FlowGraphCompiler* compiler) { |
| // Check that the type of the value is allowed in conditional context. |
| // Call the runtime if the object is not bool::true or bool::false. |
| ASSERT(locs->always_calls()); |
| Label done; |
| __ CompareObject(reg, Bool::True(), PP); |
| __ j(EQUAL, &done, Assembler::kNearJump); |
| __ CompareObject(reg, Bool::False(), PP); |
| __ j(EQUAL, &done, Assembler::kNearJump); |
| |
| __ pushq(reg); // Push the source object. |
| compiler->GenerateRuntimeCall(token_pos, |
| deopt_id, |
| kNonBoolTypeErrorRuntimeEntry, |
| 1, |
| locs); |
| // We should never return here. |
| __ int3(); |
| __ Bind(&done); |
| } |
| |
| |
| void AssertBooleanInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| Register obj = locs()->in(0).reg(); |
| Register result = locs()->out(0).reg(); |
| |
| EmitAssertBoolean(obj, token_pos(), deopt_id(), locs(), compiler); |
| ASSERT(obj == result); |
| } |
| |
| |
| static Condition TokenKindToSmiCondition(Token::Kind kind) { |
| switch (kind) { |
| case Token::kEQ: return EQUAL; |
| case Token::kNE: return NOT_EQUAL; |
| case Token::kLT: return LESS; |
| case Token::kGT: return GREATER; |
| case Token::kLTE: return LESS_EQUAL; |
| case Token::kGTE: return GREATER_EQUAL; |
| default: |
| UNREACHABLE(); |
| return OVERFLOW; |
| } |
| } |
| |
| |
| LocationSummary* EqualityCompareInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 2; |
| if (operation_cid() == kDoubleCid) { |
| const intptr_t kNumTemps = 0; |
| LocationSummary* locs = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| locs->set_in(0, Location::RequiresFpuRegister()); |
| locs->set_in(1, Location::RequiresFpuRegister()); |
| locs->set_out(0, Location::RequiresRegister()); |
| return locs; |
| } |
| if (operation_cid() == kSmiCid) { |
| const intptr_t kNumTemps = 0; |
| LocationSummary* locs = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| locs->set_in(0, Location::RegisterOrConstant(left())); |
| // Only one input can be a constant operand. The case of two constant |
| // operands should be handled by constant propagation. |
| // Only right can be a stack slot. |
| locs->set_in(1, locs->in(0).IsConstant() |
| ? Location::RequiresRegister() |
| : Location::RegisterOrConstant(right())); |
| locs->set_out(0, Location::RequiresRegister()); |
| return locs; |
| } |
| UNREACHABLE(); |
| return NULL; |
| } |
| |
| |
| static void LoadValueCid(FlowGraphCompiler* compiler, |
| Register value_cid_reg, |
| Register value_reg, |
| Label* value_is_smi = NULL) { |
| Label done; |
| if (value_is_smi == NULL) { |
| __ LoadImmediate(value_cid_reg, Immediate(kSmiCid), PP); |
| } |
| __ testq(value_reg, Immediate(kSmiTagMask)); |
| if (value_is_smi == NULL) { |
| __ j(ZERO, &done, Assembler::kNearJump); |
| } else { |
| __ j(ZERO, value_is_smi); |
| } |
| __ LoadClassId(value_cid_reg, value_reg); |
| __ Bind(&done); |
| } |
| |
| |
| static Condition FlipCondition(Condition condition) { |
| switch (condition) { |
| case EQUAL: return EQUAL; |
| case NOT_EQUAL: return NOT_EQUAL; |
| case LESS: return GREATER; |
| case LESS_EQUAL: return GREATER_EQUAL; |
| case GREATER: return LESS; |
| case GREATER_EQUAL: return LESS_EQUAL; |
| case BELOW: return ABOVE; |
| case BELOW_EQUAL: return ABOVE_EQUAL; |
| case ABOVE: return BELOW; |
| case ABOVE_EQUAL: return BELOW_EQUAL; |
| default: |
| UNIMPLEMENTED(); |
| return EQUAL; |
| } |
| } |
| |
| |
| static void EmitBranchOnCondition(FlowGraphCompiler* compiler, |
| Condition true_condition, |
| BranchLabels labels) { |
| if (labels.fall_through == labels.false_label) { |
| // If the next block is the false successor, fall through to it. |
| __ j(true_condition, labels.true_label); |
| } else { |
| // If the next block is not the false successor, branch to it. |
| Condition false_condition = NegateCondition(true_condition); |
| __ j(false_condition, labels.false_label); |
| |
| // Fall through or jump to the true successor. |
| if (labels.fall_through != labels.true_label) { |
| __ jmp(labels.true_label); |
| } |
| } |
| } |
| |
| |
| static Condition EmitSmiComparisonOp(FlowGraphCompiler* compiler, |
| const LocationSummary& locs, |
| Token::Kind kind, |
| BranchLabels labels) { |
| Location left = locs.in(0); |
| Location right = locs.in(1); |
| ASSERT(!left.IsConstant() || !right.IsConstant()); |
| |
| Condition true_condition = TokenKindToSmiCondition(kind); |
| |
| if (left.IsConstant()) { |
| __ CompareObject(right.reg(), left.constant(), PP); |
| true_condition = FlipCondition(true_condition); |
| } else if (right.IsConstant()) { |
| __ CompareObject(left.reg(), right.constant(), PP); |
| } else if (right.IsStackSlot()) { |
| __ cmpq(left.reg(), right.ToStackSlotAddress()); |
| } else { |
| __ cmpq(left.reg(), right.reg()); |
| } |
| return true_condition; |
| } |
| |
| |
| static Condition TokenKindToDoubleCondition(Token::Kind kind) { |
| switch (kind) { |
| case Token::kEQ: return EQUAL; |
| case Token::kNE: return NOT_EQUAL; |
| case Token::kLT: return BELOW; |
| case Token::kGT: return ABOVE; |
| case Token::kLTE: return BELOW_EQUAL; |
| case Token::kGTE: return ABOVE_EQUAL; |
| default: |
| UNREACHABLE(); |
| return OVERFLOW; |
| } |
| } |
| |
| |
| static Condition EmitDoubleComparisonOp(FlowGraphCompiler* compiler, |
| const LocationSummary& locs, |
| Token::Kind kind, |
| BranchLabels labels) { |
| XmmRegister left = locs.in(0).fpu_reg(); |
| XmmRegister right = locs.in(1).fpu_reg(); |
| |
| __ comisd(left, right); |
| |
| Condition true_condition = TokenKindToDoubleCondition(kind); |
| Label* nan_result = (true_condition == NOT_EQUAL) |
| ? labels.true_label : labels.false_label; |
| __ j(PARITY_EVEN, nan_result); |
| return true_condition; |
| } |
| |
| |
| Condition EqualityCompareInstr::EmitComparisonCode(FlowGraphCompiler* compiler, |
| BranchLabels labels) { |
| if (operation_cid() == kSmiCid) { |
| return EmitSmiComparisonOp(compiler, *locs(), kind(), labels); |
| } else { |
| ASSERT(operation_cid() == kDoubleCid); |
| return EmitDoubleComparisonOp(compiler, *locs(), kind(), labels); |
| } |
| } |
| |
| |
| void EqualityCompareInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| ASSERT((kind() == Token::kEQ) || (kind() == Token::kNE)); |
| |
| Label is_true, is_false; |
| BranchLabels labels = { &is_true, &is_false, &is_false }; |
| Condition true_condition = EmitComparisonCode(compiler, labels); |
| EmitBranchOnCondition(compiler, true_condition, labels); |
| |
| Register result = locs()->out(0).reg(); |
| Label done; |
| __ Bind(&is_false); |
| __ LoadObject(result, Bool::False(), PP); |
| __ jmp(&done); |
| __ Bind(&is_true); |
| __ LoadObject(result, Bool::True(), PP); |
| __ Bind(&done); |
| } |
| |
| |
| void EqualityCompareInstr::EmitBranchCode(FlowGraphCompiler* compiler, |
| BranchInstr* branch) { |
| ASSERT((kind() == Token::kNE) || (kind() == Token::kEQ)); |
| |
| BranchLabels labels = compiler->CreateBranchLabels(branch); |
| Condition true_condition = EmitComparisonCode(compiler, labels); |
| EmitBranchOnCondition(compiler, true_condition, labels); |
| } |
| |
| |
| LocationSummary* TestSmiInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 2; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* locs = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| locs->set_in(0, Location::RequiresRegister()); |
| // Only one input can be a constant operand. The case of two constant |
| // operands should be handled by constant propagation. |
| locs->set_in(1, Location::RegisterOrConstant(right())); |
| return locs; |
| } |
| |
| |
| Condition TestSmiInstr::EmitComparisonCode(FlowGraphCompiler* compiler, |
| BranchLabels labels) { |
| Register left_reg = locs()->in(0).reg(); |
| Location right = locs()->in(1); |
| if (right.IsConstant()) { |
| ASSERT(right.constant().IsSmi()); |
| const int64_t imm = |
| reinterpret_cast<int64_t>(right.constant().raw()); |
| __ TestImmediate(left_reg, Immediate(imm), PP); |
| } else { |
| __ testq(left_reg, right.reg()); |
| } |
| Condition true_condition = (kind() == Token::kNE) ? NOT_ZERO : ZERO; |
| return true_condition; |
| } |
| |
| |
| void TestSmiInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| // Never emitted outside of the BranchInstr. |
| UNREACHABLE(); |
| } |
| |
| |
| void TestSmiInstr::EmitBranchCode(FlowGraphCompiler* compiler, |
| BranchInstr* branch) { |
| BranchLabels labels = compiler->CreateBranchLabels(branch); |
| Condition true_condition = EmitComparisonCode(compiler, labels); |
| EmitBranchOnCondition(compiler, true_condition, labels); |
| } |
| |
| |
| |
| LocationSummary* TestCidsInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 1; |
| const intptr_t kNumTemps = 1; |
| LocationSummary* locs = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| locs->set_in(0, Location::RequiresRegister()); |
| locs->set_temp(0, Location::RequiresRegister()); |
| locs->set_out(0, Location::RequiresRegister()); |
| return locs; |
| } |
| |
| |
| Condition TestCidsInstr::EmitComparisonCode(FlowGraphCompiler* compiler, |
| BranchLabels labels) { |
| ASSERT((kind() == Token::kIS) || (kind() == Token::kISNOT)); |
| Register val_reg = locs()->in(0).reg(); |
| Register cid_reg = locs()->temp(0).reg(); |
| |
| Label* deopt = CanDeoptimize() ? |
| compiler->AddDeoptStub(deopt_id(), ICData::kDeoptTestCids) : NULL; |
| |
| const intptr_t true_result = (kind() == Token::kIS) ? 1 : 0; |
| const ZoneGrowableArray<intptr_t>& data = cid_results(); |
| ASSERT(data[0] == kSmiCid); |
| bool result = data[1] == true_result; |
| __ testq(val_reg, Immediate(kSmiTagMask)); |
| __ j(ZERO, result ? labels.true_label : labels.false_label); |
| __ LoadClassId(cid_reg, val_reg); |
| for (intptr_t i = 2; i < data.length(); i += 2) { |
| const intptr_t test_cid = data[i]; |
| ASSERT(test_cid != kSmiCid); |
| result = data[i + 1] == true_result; |
| __ cmpq(cid_reg, Immediate(test_cid)); |
| __ j(EQUAL, result ? labels.true_label : labels.false_label); |
| } |
| // No match found, deoptimize or false. |
| if (deopt == NULL) { |
| Label* target = result ? labels.false_label : labels.true_label; |
| if (target != labels.fall_through) { |
| __ jmp(target); |
| } |
| } else { |
| __ jmp(deopt); |
| } |
| // Dummy result as the last instruction is a jump, any conditional |
| // branch using the result will therefore be skipped. |
| return ZERO; |
| } |
| |
| |
| void TestCidsInstr::EmitBranchCode(FlowGraphCompiler* compiler, |
| BranchInstr* branch) { |
| BranchLabels labels = compiler->CreateBranchLabels(branch); |
| EmitComparisonCode(compiler, labels); |
| } |
| |
| |
| void TestCidsInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| Register result_reg = locs()->out(0).reg(); |
| Label is_true, is_false, done; |
| BranchLabels labels = { &is_true, &is_false, &is_false }; |
| EmitComparisonCode(compiler, labels); |
| __ Bind(&is_false); |
| __ LoadObject(result_reg, Bool::False(), PP); |
| __ jmp(&done, Assembler::kNearJump); |
| __ Bind(&is_true); |
| __ LoadObject(result_reg, Bool::True(), PP); |
| __ Bind(&done); |
| } |
| |
| |
| LocationSummary* RelationalOpInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 2; |
| const intptr_t kNumTemps = 0; |
| if (operation_cid() == kDoubleCid) { |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RequiresFpuRegister()); |
| summary->set_in(1, Location::RequiresFpuRegister()); |
| summary->set_out(0, Location::RequiresRegister()); |
| return summary; |
| } |
| ASSERT(operation_cid() == kSmiCid); |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RegisterOrConstant(left())); |
| // Only one input can be a constant operand. The case of two constant |
| // operands should be handled by constant propagation. |
| summary->set_in(1, summary->in(0).IsConstant() |
| ? Location::RequiresRegister() |
| : Location::RegisterOrConstant(right())); |
| summary->set_out(0, Location::RequiresRegister()); |
| return summary; |
| } |
| |
| |
| Condition RelationalOpInstr::EmitComparisonCode(FlowGraphCompiler* compiler, |
| BranchLabels labels) { |
| if (operation_cid() == kSmiCid) { |
| return EmitSmiComparisonOp(compiler, *locs(), kind(), labels); |
| } else { |
| ASSERT(operation_cid() == kDoubleCid); |
| return EmitDoubleComparisonOp(compiler, *locs(), kind(), labels); |
| } |
| } |
| |
| |
| void RelationalOpInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| Label is_true, is_false; |
| BranchLabels labels = { &is_true, &is_false, &is_false }; |
| Condition true_condition = EmitComparisonCode(compiler, labels); |
| EmitBranchOnCondition(compiler, true_condition, labels); |
| |
| Register result = locs()->out(0).reg(); |
| Label done; |
| __ Bind(&is_false); |
| __ LoadObject(result, Bool::False(), PP); |
| __ jmp(&done); |
| __ Bind(&is_true); |
| __ LoadObject(result, Bool::True(), PP); |
| __ Bind(&done); |
| } |
| |
| |
| void RelationalOpInstr::EmitBranchCode(FlowGraphCompiler* compiler, |
| BranchInstr* branch) { |
| BranchLabels labels = compiler->CreateBranchLabels(branch); |
| Condition true_condition = EmitComparisonCode(compiler, labels); |
| EmitBranchOnCondition(compiler, true_condition, labels); |
| } |
| |
| |
| LocationSummary* NativeCallInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 0; |
| const intptr_t kNumTemps = 3; |
| LocationSummary* locs = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kCall); |
| locs->set_temp(0, Location::RegisterLocation(RAX)); |
| locs->set_temp(1, Location::RegisterLocation(RBX)); |
| locs->set_temp(2, Location::RegisterLocation(R10)); |
| locs->set_out(0, Location::RegisterLocation(RAX)); |
| return locs; |
| } |
| |
| |
| void NativeCallInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| ASSERT(locs()->temp(0).reg() == RAX); |
| ASSERT(locs()->temp(1).reg() == RBX); |
| ASSERT(locs()->temp(2).reg() == R10); |
| Register result = locs()->out(0).reg(); |
| const intptr_t argc_tag = NativeArguments::ComputeArgcTag(function()); |
| const bool is_leaf_call = |
| (argc_tag & NativeArguments::AutoSetupScopeMask()) == 0; |
| |
| // Push the result place holder initialized to NULL. |
| __ PushObject(Object::ZoneHandle(), PP); |
| // Pass a pointer to the first argument in RAX. |
| if (!function().HasOptionalParameters()) { |
| __ leaq(RAX, Address(RBP, (kParamEndSlotFromFp + |
| function().NumParameters()) * kWordSize)); |
| } else { |
| __ leaq(RAX, |
| Address(RBP, kFirstLocalSlotFromFp * kWordSize)); |
| } |
| __ LoadImmediate( |
| RBX, Immediate(reinterpret_cast<uword>(native_c_function())), PP); |
| __ LoadImmediate( |
| R10, Immediate(argc_tag), PP); |
| const ExternalLabel* stub_entry = (is_bootstrap_native() || is_leaf_call) ? |
| &StubCode::CallBootstrapCFunctionLabel() : |
| &StubCode::CallNativeCFunctionLabel(); |
| compiler->GenerateCall(token_pos(), |
| stub_entry, |
| PcDescriptors::kOther, |
| locs()); |
| __ popq(result); |
| } |
| |
| |
| static bool CanBeImmediateIndex(Value* index, intptr_t cid) { |
| if (!index->definition()->IsConstant()) return false; |
| const Object& constant = index->definition()->AsConstant()->value(); |
| if (!constant.IsSmi()) return false; |
| const Smi& smi_const = Smi::Cast(constant); |
| const intptr_t scale = Instance::ElementSizeFor(cid); |
| const intptr_t data_offset = Instance::DataOffsetFor(cid); |
| const int64_t disp = smi_const.AsInt64Value() * scale + data_offset; |
| return Utils::IsInt(32, disp); |
| } |
| |
| |
| LocationSummary* StringFromCharCodeInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 1; |
| // TODO(fschneider): Allow immediate operands for the char code. |
| return LocationSummary::Make(isolate, |
| kNumInputs, |
| Location::RequiresRegister(), |
| LocationSummary::kNoCall); |
| } |
| |
| |
| void StringFromCharCodeInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| Register char_code = locs()->in(0).reg(); |
| Register result = locs()->out(0).reg(); |
| __ LoadImmediate(result, |
| Immediate(reinterpret_cast<uword>(Symbols::PredefinedAddress())), PP); |
| __ movq(result, Address(result, |
| char_code, |
| TIMES_HALF_WORD_SIZE, // Char code is a smi. |
| Symbols::kNullCharCodeSymbolOffset * kWordSize)); |
| } |
| |
| |
| LocationSummary* StringToCharCodeInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 1; |
| return LocationSummary::Make(isolate, |
| kNumInputs, |
| Location::RequiresRegister(), |
| LocationSummary::kNoCall); |
| } |
| |
| |
| void StringToCharCodeInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| ASSERT(cid_ == kOneByteStringCid); |
| Register str = locs()->in(0).reg(); |
| Register result = locs()->out(0).reg(); |
| Label is_one, done; |
| __ movq(result, FieldAddress(str, String::length_offset())); |
| __ cmpq(result, Immediate(Smi::RawValue(1))); |
| __ j(EQUAL, &is_one, Assembler::kNearJump); |
| __ movq(result, Immediate(Smi::RawValue(-1))); |
| __ jmp(&done); |
| __ Bind(&is_one); |
| __ movzxb(result, FieldAddress(str, OneByteString::data_offset())); |
| __ SmiTag(result); |
| __ Bind(&done); |
| } |
| |
| |
| LocationSummary* StringInterpolateInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 1; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kCall); |
| summary->set_in(0, Location::RegisterLocation(RAX)); |
| summary->set_out(0, Location::RegisterLocation(RAX)); |
| return summary; |
| } |
| |
| |
| void StringInterpolateInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| Register array = locs()->in(0).reg(); |
| __ pushq(array); |
| const int kNumberOfArguments = 1; |
| const Array& kNoArgumentNames = Object::null_array(); |
| compiler->GenerateStaticCall(deopt_id(), |
| token_pos(), |
| CallFunction(), |
| kNumberOfArguments, |
| kNoArgumentNames, |
| locs(), |
| ICData::Handle()); |
| ASSERT(locs()->out(0).reg() == RAX); |
| } |
| |
| |
| LocationSummary* LoadUntaggedInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 1; |
| return LocationSummary::Make(isolate, |
| kNumInputs, |
| Location::RequiresRegister(), |
| LocationSummary::kNoCall); |
| } |
| |
| |
| void LoadUntaggedInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| Register object = locs()->in(0).reg(); |
| Register result = locs()->out(0).reg(); |
| __ movq(result, FieldAddress(object, offset())); |
| } |
| |
| |
| LocationSummary* LoadClassIdInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 1; |
| return LocationSummary::Make(isolate, |
| kNumInputs, |
| Location::RequiresRegister(), |
| LocationSummary::kNoCall); |
| } |
| |
| |
| void LoadClassIdInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| Register object = locs()->in(0).reg(); |
| Register result = locs()->out(0).reg(); |
| __ LoadTaggedClassIdMayBeSmi(result, object); |
| } |
| |
| |
| CompileType LoadIndexedInstr::ComputeType() const { |
| switch (class_id_) { |
| case kArrayCid: |
| case kImmutableArrayCid: |
| return CompileType::Dynamic(); |
| |
| case kTypedDataFloat32ArrayCid: |
| case kTypedDataFloat64ArrayCid: |
| return CompileType::FromCid(kDoubleCid); |
| case kTypedDataFloat32x4ArrayCid: |
| return CompileType::FromCid(kFloat32x4Cid); |
| case kTypedDataInt32x4ArrayCid: |
| return CompileType::FromCid(kInt32x4Cid); |
| case kTypedDataFloat64x2ArrayCid: |
| return CompileType::FromCid(kFloat64x2Cid); |
| |
| case kTypedDataInt8ArrayCid: |
| case kTypedDataUint8ArrayCid: |
| case kTypedDataUint8ClampedArrayCid: |
| case kExternalTypedDataUint8ArrayCid: |
| case kExternalTypedDataUint8ClampedArrayCid: |
| case kTypedDataInt16ArrayCid: |
| case kTypedDataUint16ArrayCid: |
| case kOneByteStringCid: |
| case kTwoByteStringCid: |
| case kTypedDataInt32ArrayCid: |
| case kTypedDataUint32ArrayCid: |
| return CompileType::FromCid(kSmiCid); |
| |
| default: |
| UNIMPLEMENTED(); |
| return CompileType::Dynamic(); |
| } |
| } |
| |
| |
| Representation LoadIndexedInstr::representation() const { |
| switch (class_id_) { |
| case kArrayCid: |
| case kImmutableArrayCid: |
| case kTypedDataInt8ArrayCid: |
| case kTypedDataUint8ArrayCid: |
| case kTypedDataUint8ClampedArrayCid: |
| case kExternalTypedDataUint8ArrayCid: |
| case kExternalTypedDataUint8ClampedArrayCid: |
| case kTypedDataInt16ArrayCid: |
| case kTypedDataUint16ArrayCid: |
| case kOneByteStringCid: |
| case kTwoByteStringCid: |
| case kTypedDataInt32ArrayCid: |
| case kTypedDataUint32ArrayCid: |
| return kTagged; |
| case kTypedDataFloat32ArrayCid: |
| case kTypedDataFloat64ArrayCid: |
| return kUnboxedDouble; |
| case kTypedDataInt32x4ArrayCid: |
| return kUnboxedInt32x4; |
| case kTypedDataFloat32x4ArrayCid: |
| return kUnboxedFloat32x4; |
| case kTypedDataFloat64x2ArrayCid: |
| return kUnboxedFloat64x2; |
| default: |
| UNIMPLEMENTED(); |
| return kTagged; |
| } |
| } |
| |
| |
| LocationSummary* LoadIndexedInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 2; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* locs = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| locs->set_in(0, Location::RequiresRegister()); |
| // The smi index is either untagged (element size == 1), or it is left smi |
| // tagged (for all element sizes > 1). |
| if (index_scale() == 1) { |
| locs->set_in(1, CanBeImmediateIndex(index(), class_id()) |
| ? Location::Constant( |
| index()->definition()->AsConstant()->value()) |
| : Location::WritableRegister()); |
| } else { |
| locs->set_in(1, CanBeImmediateIndex(index(), class_id()) |
| ? Location::Constant( |
| index()->definition()->AsConstant()->value()) |
| : Location::RequiresRegister()); |
| } |
| if ((representation() == kUnboxedDouble) || |
| (representation() == kUnboxedFloat32x4) || |
| (representation() == kUnboxedInt32x4) || |
| (representation() == kUnboxedFloat64x2)) { |
| locs->set_out(0, Location::RequiresFpuRegister()); |
| } else { |
| locs->set_out(0, Location::RequiresRegister()); |
| } |
| return locs; |
| } |
| |
| |
| static Address ElementAddressForIntIndex(bool is_external, |
| intptr_t cid, |
| intptr_t index_scale, |
| Register array, |
| intptr_t index) { |
| if (is_external) { |
| return Address(array, index * index_scale); |
| } else { |
| const int64_t disp = static_cast<int64_t>(index) * index_scale + |
| Instance::DataOffsetFor(cid); |
| ASSERT(Utils::IsInt(32, disp)); |
| return FieldAddress(array, static_cast<int32_t>(disp)); |
| } |
| } |
| |
| |
| static ScaleFactor ToScaleFactor(intptr_t index_scale) { |
| // Note that index is expected smi-tagged, (i.e, times 2) for all arrays with |
| // index scale factor > 1. E.g., for Uint8Array and OneByteString the index is |
| // expected to be untagged before accessing. |
| ASSERT(kSmiTagShift == 1); |
| switch (index_scale) { |
| case 1: return TIMES_1; |
| case 2: return TIMES_1; |
| case 4: return TIMES_2; |
| case 8: return TIMES_4; |
| case 16: return TIMES_8; |
| default: |
| UNREACHABLE(); |
| return TIMES_1; |
| } |
| } |
| |
| |
| static Address ElementAddressForRegIndex(bool is_external, |
| intptr_t cid, |
| intptr_t index_scale, |
| Register array, |
| Register index) { |
| if (is_external) { |
| return Address(array, index, ToScaleFactor(index_scale), 0); |
| } else { |
| return FieldAddress(array, |
| index, |
| ToScaleFactor(index_scale), |
| Instance::DataOffsetFor(cid)); |
| } |
| } |
| |
| |
| void LoadIndexedInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| // The array register points to the backing store for external arrays. |
| const Register array = locs()->in(0).reg(); |
| const Location index = locs()->in(1); |
| |
| Address element_address = index.IsRegister() |
| ? ElementAddressForRegIndex(IsExternal(), class_id(), index_scale(), |
| array, index.reg()) |
| : ElementAddressForIntIndex(IsExternal(), class_id(), index_scale(), |
| array, Smi::Cast(index.constant()).Value()); |
| |
| if ((representation() == kUnboxedDouble) || |
| (representation() == kUnboxedFloat32x4) || |
| (representation() == kUnboxedInt32x4) || |
| (representation() == kUnboxedFloat64x2)) { |
| if ((index_scale() == 1) && index.IsRegister()) { |
| __ SmiUntag(index.reg()); |
| } |
| |
| XmmRegister result = locs()->out(0).fpu_reg(); |
| if (class_id() == kTypedDataFloat32ArrayCid) { |
| // Load single precision float. |
| __ movss(result, element_address); |
| } else if (class_id() == kTypedDataFloat64ArrayCid) { |
| __ movsd(result, element_address); |
| } else { |
| ASSERT((class_id() == kTypedDataInt32x4ArrayCid) || |
| (class_id() == kTypedDataFloat32x4ArrayCid) || |
| (class_id() == kTypedDataFloat64x2ArrayCid)); |
| __ movups(result, element_address); |
| } |
| return; |
| } |
| |
| if ((index_scale() == 1) && index.IsRegister()) { |
| __ SmiUntag(index.reg()); |
| } |
| Register result = locs()->out(0).reg(); |
| switch (class_id()) { |
| case kTypedDataInt8ArrayCid: |
| __ movsxb(result, element_address); |
| __ SmiTag(result); |
| break; |
| case kTypedDataUint8ArrayCid: |
| case kTypedDataUint8ClampedArrayCid: |
| case kExternalTypedDataUint8ArrayCid: |
| case kExternalTypedDataUint8ClampedArrayCid: |
| case kOneByteStringCid: |
| __ movzxb(result, element_address); |
| __ SmiTag(result); |
| break; |
| case kTypedDataInt16ArrayCid: |
| __ movsxw(result, element_address); |
| __ SmiTag(result); |
| break; |
| case kTypedDataUint16ArrayCid: |
| case kTwoByteStringCid: |
| __ movzxw(result, element_address); |
| __ SmiTag(result); |
| break; |
| case kTypedDataInt32ArrayCid: |
| __ movsxd(result, element_address); |
| __ SmiTag(result); |
| break; |
| case kTypedDataUint32ArrayCid: |
| __ movl(result, element_address); |
| __ SmiTag(result); |
| break; |
| default: |
| ASSERT((class_id() == kArrayCid) || (class_id() == kImmutableArrayCid)); |
| __ movq(result, element_address); |
| break; |
| } |
| } |
| |
| |
| Representation StoreIndexedInstr::RequiredInputRepresentation( |
| intptr_t idx) const { |
| if (idx == 0) return kNoRepresentation; |
| if (idx == 1) return kTagged; |
| ASSERT(idx == 2); |
| switch (class_id_) { |
| case kArrayCid: |
| case kOneByteStringCid: |
| case kTypedDataInt8ArrayCid: |
| case kTypedDataUint8ArrayCid: |
| case kExternalTypedDataUint8ArrayCid: |
| case kTypedDataUint8ClampedArrayCid: |
| case kExternalTypedDataUint8ClampedArrayCid: |
| case kTypedDataInt16ArrayCid: |
| case kTypedDataUint16ArrayCid: |
| case kTypedDataInt32ArrayCid: |
| case kTypedDataUint32ArrayCid: |
| return kTagged; |
| case kTypedDataFloat32ArrayCid: |
| case kTypedDataFloat64ArrayCid: |
| return kUnboxedDouble; |
| case kTypedDataFloat32x4ArrayCid: |
| return kUnboxedFloat32x4; |
| case kTypedDataInt32x4ArrayCid: |
| return kUnboxedInt32x4; |
| case kTypedDataFloat64x2ArrayCid: |
| return kUnboxedFloat64x2; |
| default: |
| UNIMPLEMENTED(); |
| return kTagged; |
| } |
| } |
| |
| |
| LocationSummary* StoreIndexedInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 3; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* locs = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| locs->set_in(0, Location::RequiresRegister()); |
| // The smi index is either untagged (element size == 1), or it is left smi |
| // tagged (for all element sizes > 1). |
| if (index_scale() == 1) { |
| locs->set_in(1, CanBeImmediateIndex(index(), class_id()) |
| ? Location::Constant( |
| index()->definition()->AsConstant()->value()) |
| : Location::WritableRegister()); |
| } else { |
| locs->set_in(1, CanBeImmediateIndex(index(), class_id()) |
| ? Location::Constant( |
| index()->definition()->AsConstant()->value()) |
| : Location::RequiresRegister()); |
| } |
| switch (class_id()) { |
| case kArrayCid: |
| locs->set_in(2, ShouldEmitStoreBarrier() |
| ? Location::WritableRegister() |
| : Location::RegisterOrConstant(value())); |
| break; |
| case kExternalTypedDataUint8ArrayCid: |
| case kExternalTypedDataUint8ClampedArrayCid: |
| case kTypedDataInt8ArrayCid: |
| case kTypedDataUint8ArrayCid: |
| case kTypedDataUint8ClampedArrayCid: |
| case kOneByteStringCid: |
| // TODO(fschneider): Add location constraint for byte registers (RAX, |
| // RBX, RCX, RDX) instead of using a fixed register. |
| locs->set_in(2, Location::FixedRegisterOrSmiConstant(value(), RAX)); |
| break; |
| case kTypedDataInt16ArrayCid: |
| case kTypedDataUint16ArrayCid: |
| case kTypedDataInt32ArrayCid: |
| case kTypedDataUint32ArrayCid: |
| // Writable register because the value must be untagged before storing. |
| locs->set_in(2, Location::WritableRegister()); |
| break; |
| case kTypedDataFloat32ArrayCid: |
| case kTypedDataFloat64ArrayCid: |
| // TODO(srdjan): Support Float64 constants. |
| locs->set_in(2, Location::RequiresFpuRegister()); |
| break; |
| case kTypedDataInt32x4ArrayCid: |
| case kTypedDataFloat64x2ArrayCid: |
| case kTypedDataFloat32x4ArrayCid: |
| locs->set_in(2, Location::RequiresFpuRegister()); |
| break; |
| default: |
| UNREACHABLE(); |
| return NULL; |
| } |
| return locs; |
| } |
| |
| |
| void StoreIndexedInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| // The array register points to the backing store for external arrays. |
| const Register array = locs()->in(0).reg(); |
| const Location index = locs()->in(1); |
| |
| Address element_address = index.IsRegister() |
| ? ElementAddressForRegIndex(IsExternal(), class_id(), index_scale(), |
| array, index.reg()) |
| : ElementAddressForIntIndex(IsExternal(), class_id(), index_scale(), |
| array, Smi::Cast(index.constant()).Value()); |
| |
| if ((index_scale() == 1) && index.IsRegister()) { |
| __ SmiUntag(index.reg()); |
| } |
| switch (class_id()) { |
| case kArrayCid: |
| if (ShouldEmitStoreBarrier()) { |
| Register value = locs()->in(2).reg(); |
| __ StoreIntoObject(array, element_address, value); |
| } else if (locs()->in(2).IsConstant()) { |
| const Object& constant = locs()->in(2).constant(); |
| __ StoreObject(element_address, constant, PP); |
| } else { |
| Register value = locs()->in(2).reg(); |
| __ StoreIntoObjectNoBarrier(array, element_address, value); |
| } |
| break; |
| case kTypedDataInt8ArrayCid: |
| case kTypedDataUint8ArrayCid: |
| case kExternalTypedDataUint8ArrayCid: |
| case kOneByteStringCid: |
| if (locs()->in(2).IsConstant()) { |
| const Smi& constant = Smi::Cast(locs()->in(2).constant()); |
| __ movb(element_address, |
| Immediate(static_cast<int8_t>(constant.Value()))); |
| } else { |
| ASSERT(locs()->in(2).reg() == RAX); |
| __ SmiUntag(RAX); |
| __ movb(element_address, RAX); |
| } |
| break; |
| case kTypedDataUint8ClampedArrayCid: |
| case kExternalTypedDataUint8ClampedArrayCid: { |
| if (locs()->in(2).IsConstant()) { |
| const Smi& constant = Smi::Cast(locs()->in(2).constant()); |
| intptr_t value = constant.Value(); |
| // Clamp to 0x0 or 0xFF respectively. |
| if (value > 0xFF) { |
| value = 0xFF; |
| } else if (value < 0) { |
| value = 0; |
| } |
| __ movb(element_address, |
| Immediate(static_cast<int8_t>(value))); |
| } else { |
| ASSERT(locs()->in(2).reg() == RAX); |
| Label store_value, store_0xff; |
| __ SmiUntag(RAX); |
| __ CompareImmediate(RAX, Immediate(0xFF), PP); |
| __ j(BELOW_EQUAL, &store_value, Assembler::kNearJump); |
| // Clamp to 0x0 or 0xFF respectively. |
| __ j(GREATER, &store_0xff); |
| __ xorq(RAX, RAX); |
| __ jmp(&store_value, Assembler::kNearJump); |
| __ Bind(&store_0xff); |
| __ LoadImmediate(RAX, Immediate(0xFF), PP); |
| __ Bind(&store_value); |
| __ movb(element_address, RAX); |
| } |
| break; |
| } |
| case kTypedDataInt16ArrayCid: |
| case kTypedDataUint16ArrayCid: { |
| Register value = locs()->in(2).reg(); |
| __ SmiUntag(value); |
| __ movw(element_address, value); |
| break; |
| } |
| case kTypedDataInt32ArrayCid: |
| case kTypedDataUint32ArrayCid: { |
| Register value = locs()->in(2).reg(); |
| __ SmiUntag(value); |
| __ movl(element_address, value); |
| break; |
| } |
| case kTypedDataFloat32ArrayCid: |
| __ movss(element_address, locs()->in(2).fpu_reg()); |
| break; |
| case kTypedDataFloat64ArrayCid: |
| __ movsd(element_address, locs()->in(2).fpu_reg()); |
| break; |
| case kTypedDataInt32x4ArrayCid: |
| case kTypedDataFloat64x2ArrayCid: |
| case kTypedDataFloat32x4ArrayCid: |
| __ movups(element_address, locs()->in(2).fpu_reg()); |
| break; |
| default: |
| UNREACHABLE(); |
| } |
| } |
| |
| |
| LocationSummary* GuardFieldClassInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 1; |
| |
| const intptr_t value_cid = value()->Type()->ToCid(); |
| const intptr_t field_cid = field().guarded_cid(); |
| |
| const bool emit_full_guard = !opt || (field_cid == kIllegalCid); |
| const bool needs_value_cid_temp_reg = |
| (value_cid == kDynamicCid) && (emit_full_guard || (field_cid != kSmiCid)); |
| const bool needs_field_temp_reg = emit_full_guard; |
| |
| intptr_t num_temps = 0; |
| if (needs_value_cid_temp_reg) { |
| num_temps++; |
| } |
| if (needs_field_temp_reg) { |
| num_temps++; |
| } |
| |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, num_temps, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RequiresRegister()); |
| |
| for (intptr_t i = 0; i < num_temps; i++) { |
| summary->set_temp(i, Location::RequiresRegister()); |
| } |
| |
| |
| return summary; |
| } |
| |
| |
| void GuardFieldClassInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| const intptr_t value_cid = value()->Type()->ToCid(); |
| const intptr_t field_cid = field().guarded_cid(); |
| const intptr_t nullability = field().is_nullable() ? kNullCid : kIllegalCid; |
| |
| if (field_cid == kDynamicCid) { |
| ASSERT(!compiler->is_optimizing()); |
| return; // Nothing to emit. |
| } |
| |
| const bool emit_full_guard = |
| !compiler->is_optimizing() || (field_cid == kIllegalCid); |
| |
| const bool needs_value_cid_temp_reg = |
| (value_cid == kDynamicCid) && (emit_full_guard || (field_cid != kSmiCid)); |
| |
| const bool needs_field_temp_reg = emit_full_guard; |
| |
| const Register value_reg = locs()->in(0).reg(); |
| |
| const Register value_cid_reg = needs_value_cid_temp_reg ? |
| locs()->temp(0).reg() : kNoRegister; |
| |
| const Register field_reg = needs_field_temp_reg ? |
| locs()->temp(locs()->temp_count() - 1).reg() : kNoRegister; |
| |
| Label ok, fail_label; |
| |
| Label* deopt = compiler->is_optimizing() ? |
| compiler->AddDeoptStub(deopt_id(), ICData::kDeoptGuardField) : NULL; |
| |
| Label* fail = (deopt != NULL) ? deopt : &fail_label; |
| |
| if (emit_full_guard) { |
| __ LoadObject(field_reg, Field::ZoneHandle(field().raw()), PP); |
| |
| FieldAddress field_cid_operand(field_reg, Field::guarded_cid_offset()); |
| FieldAddress field_nullability_operand( |
| field_reg, Field::is_nullable_offset()); |
| |
| if (value_cid == kDynamicCid) { |
| LoadValueCid(compiler, value_cid_reg, value_reg); |
| |
| __ cmpl(value_cid_reg, field_cid_operand); |
| __ j(EQUAL, &ok); |
| __ cmpl(value_cid_reg, field_nullability_operand); |
| } else if (value_cid == kNullCid) { |
| __ cmpl(field_nullability_operand, Immediate(value_cid)); |
| } else { |
| __ cmpl(field_cid_operand, Immediate(value_cid)); |
| } |
| __ j(EQUAL, &ok); |
| |
| // Check if the tracked state of the guarded field can be initialized |
| // inline. If the field needs length check we fall through to runtime |
| // which is responsible for computing offset of the length field |
| // based on the class id. |
| if (!field().needs_length_check()) { |
| // Uninitialized field can be handled inline. Check if the |
| // field is still unitialized. |
| __ cmpl(field_cid_operand, Immediate(kIllegalCid)); |
| __ j(NOT_EQUAL, fail); |
| |
| if (value_cid == kDynamicCid) { |
| __ movl(field_cid_operand, value_cid_reg); |
| __ movl(field_nullability_operand, value_cid_reg); |
| } else { |
| ASSERT(field_reg != kNoRegister); |
| __ movl(field_cid_operand, Immediate(value_cid)); |
| __ movl(field_nullability_operand, Immediate(value_cid)); |
| } |
| |
| if (deopt == NULL) { |
| ASSERT(!compiler->is_optimizing()); |
| __ jmp(&ok); |
| } |
| } |
| |
| if (deopt == NULL) { |
| ASSERT(!compiler->is_optimizing()); |
| __ Bind(fail); |
| |
| __ cmpl(FieldAddress(field_reg, Field::guarded_cid_offset()), |
| Immediate(kDynamicCid)); |
| __ j(EQUAL, &ok); |
| |
| __ pushq(field_reg); |
| __ pushq(value_reg); |
| __ CallRuntime(kUpdateFieldCidRuntimeEntry, 2); |
| __ Drop(2); // Drop the field and the value. |
| } |
| } else { |
| ASSERT(compiler->is_optimizing()); |
| ASSERT(deopt != NULL); |
| |
| // Field guard class has been initialized and is known. |
| if (value_cid == kDynamicCid) { |
| // Value's class id is not known. |
| __ testq(value_reg, Immediate(kSmiTagMask)); |
| |
| if (field_cid != kSmiCid) { |
| __ j(ZERO, fail); |
| __ LoadClassId(value_cid_reg, value_reg); |
| __ CompareImmediate(value_cid_reg, Immediate(field_cid), PP); |
| } |
| |
| if (field().is_nullable() && (field_cid != kNullCid)) { |
| __ j(EQUAL, &ok); |
| __ CompareObject(value_reg, Object::null_object(), PP); |
| } |
| |
| __ j(NOT_EQUAL, fail); |
| } else { |
| // Both value's and field's class id is known. |
| ASSERT((value_cid != field_cid) && (value_cid != nullability)); |
| __ jmp(fail); |
| } |
| } |
| __ Bind(&ok); |
| } |
| |
| |
| LocationSummary* GuardFieldLengthInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 1; |
| if (!opt || (field().guarded_list_length() == Field::kUnknownFixedLength)) { |
| const intptr_t kNumTemps = 3; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RequiresRegister()); |
| // We need temporaries for field object, length offset and expected length. |
| summary->set_temp(0, Location::RequiresRegister()); |
| summary->set_temp(1, Location::RequiresRegister()); |
| summary->set_temp(2, Location::RequiresRegister()); |
| return summary; |
| } else { |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, 0, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RequiresRegister()); |
| return summary; |
| } |
| UNREACHABLE(); |
| } |
| |
| |
| void GuardFieldLengthInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| if (field().guarded_list_length() == Field::kNoFixedLength) { |
| ASSERT(!compiler->is_optimizing()); |
| return; // Nothing to emit. |
| } |
| |
| Label* deopt = compiler->is_optimizing() ? |
| compiler->AddDeoptStub(deopt_id(), ICData::kDeoptGuardField) : NULL; |
| |
| const Register value_reg = locs()->in(0).reg(); |
| |
| if (!compiler->is_optimizing() || |
| (field().guarded_list_length() == Field::kUnknownFixedLength)) { |
| const Register field_reg = locs()->temp(0).reg(); |
| const Register offset_reg = locs()->temp(1).reg(); |
| const Register length_reg = locs()->temp(2).reg(); |
| |
| Label ok; |
| |
| __ LoadObject(field_reg, Field::ZoneHandle(field().raw()), PP); |
| |
| __ movsxb(offset_reg, FieldAddress(field_reg, |
| Field::guarded_list_length_in_object_offset_offset())); |
| __ movq(length_reg, FieldAddress(field_reg, |
| Field::guarded_list_length_offset())); |
| |
| __ cmpq(offset_reg, Immediate(0)); |
| __ j(NEGATIVE, &ok); |
| |
| // Load the length from the value. GuardFieldClass already verified that |
| // value's class matches guarded class id of the field. |
| // offset_reg contains offset already corrected by -kHeapObjectTag that is |
| // why we use Address instead of FieldAddress. |
| __ cmpq(length_reg, Address(value_reg, offset_reg, TIMES_1, 0)); |
| |
| if (deopt == NULL) { |
| __ j(EQUAL, &ok); |
| |
| __ pushq(field_reg); |
| __ pushq(value_reg); |
| __ CallRuntime(kUpdateFieldCidRuntimeEntry, 2); |
| __ Drop(2); // Drop the field and the value. |
| } else { |
| __ j(NOT_EQUAL, deopt); |
| } |
| |
| __ Bind(&ok); |
| } else { |
| ASSERT(compiler->is_optimizing()); |
| ASSERT(field().guarded_list_length() >= 0); |
| ASSERT(field().guarded_list_length_in_object_offset() != |
| Field::kUnknownLengthOffset); |
| |
| __ CompareImmediate( |
| FieldAddress(value_reg, |
| field().guarded_list_length_in_object_offset()), |
| Immediate(Smi::RawValue(field().guarded_list_length())), |
| PP); |
| __ j(NOT_EQUAL, deopt); |
| } |
| } |
| |
| |
| class StoreInstanceFieldSlowPath : public SlowPathCode { |
| public: |
| StoreInstanceFieldSlowPath(StoreInstanceFieldInstr* instruction, |
| const Class& cls) |
| : instruction_(instruction), cls_(cls) { } |
| |
| virtual void EmitNativeCode(FlowGraphCompiler* compiler) { |
| __ Comment("StoreInstanceFieldSlowPath"); |
| __ Bind(entry_label()); |
| const Code& stub = |
| Code::Handle(StubCode::GetAllocationStubForClass(cls_)); |
| const ExternalLabel label(stub.EntryPoint()); |
| |
| LocationSummary* locs = instruction_->locs(); |
| locs->live_registers()->Remove(locs->out(0)); |
| |
| compiler->SaveLiveRegisters(locs); |
| compiler->GenerateCall(Scanner::kNoSourcePos, // No token position. |
| &label, |
| PcDescriptors::kOther, |
| locs); |
| __ MoveRegister(locs->temp(0).reg(), RAX); |
| compiler->RestoreLiveRegisters(locs); |
| |
| __ jmp(exit_label()); |
| } |
| |
| private: |
| StoreInstanceFieldInstr* instruction_; |
| const Class& cls_; |
| }; |
| |
| |
| LocationSummary* StoreInstanceFieldInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 2; |
| const intptr_t kNumTemps = |
| (IsUnboxedStore() && opt) ? 2 : |
| ((IsPotentialUnboxedStore()) ? 3 : 0); |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, |
| ((IsUnboxedStore() && opt && is_initialization_) || |
| IsPotentialUnboxedStore()) |
| ? LocationSummary::kCallOnSlowPath |
| : LocationSummary::kNoCall); |
| |
| summary->set_in(0, Location::RequiresRegister()); |
| if (IsUnboxedStore() && opt) { |
| summary->set_in(1, Location::RequiresFpuRegister()); |
| summary->set_temp(0, Location::RequiresRegister()); |
| summary->set_temp(1, Location::RequiresRegister()); |
| } else if (IsPotentialUnboxedStore()) { |
| summary->set_in(1, ShouldEmitStoreBarrier() |
| ? Location::WritableRegister() |
| : Location::RequiresRegister()); |
| summary->set_temp(0, Location::RequiresRegister()); |
| summary->set_temp(1, Location::RequiresRegister()); |
| summary->set_temp(2, opt ? Location::RequiresFpuRegister() |
| : Location::FpuRegisterLocation(XMM1)); |
| } else { |
| summary->set_in(1, ShouldEmitStoreBarrier() |
| ? Location::WritableRegister() |
| : Location::RegisterOrConstant(value())); |
| } |
| return summary; |
| } |
| |
| |
| void StoreInstanceFieldInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| Label skip_store; |
| |
| Register instance_reg = locs()->in(0).reg(); |
| |
| if (IsUnboxedStore() && compiler->is_optimizing()) { |
| XmmRegister value = locs()->in(1).fpu_reg(); |
| Register temp = locs()->temp(0).reg(); |
| Register temp2 = locs()->temp(1).reg(); |
| const intptr_t cid = field().UnboxedFieldCid(); |
| |
| if (is_initialization_) { |
| const Class* cls = NULL; |
| switch (cid) { |
| case kDoubleCid: |
| cls = &compiler->double_class(); |
| break; |
| case kFloat32x4Cid: |
| cls = &compiler->float32x4_class(); |
| break; |
| case kFloat64x2Cid: |
| cls = &compiler->float64x2_class(); |
| break; |
| default: |
| UNREACHABLE(); |
| } |
| |
| StoreInstanceFieldSlowPath* slow_path = |
| new StoreInstanceFieldSlowPath(this, *cls); |
| compiler->AddSlowPathCode(slow_path); |
| |
| __ TryAllocate(*cls, |
| slow_path->entry_label(), |
| Assembler::kFarJump, |
| temp, |
| PP); |
| __ Bind(slow_path->exit_label()); |
| __ movq(temp2, temp); |
| __ StoreIntoObject(instance_reg, |
| FieldAddress(instance_reg, offset_in_bytes_), |
| temp2); |
| } else { |
| __ movq(temp, FieldAddress(instance_reg, offset_in_bytes_)); |
| } |
| switch (cid) { |
| case kDoubleCid: |
| __ Comment("UnboxedDoubleStoreInstanceFieldInstr"); |
| __ movsd(FieldAddress(temp, Double::value_offset()), value); |
| break; |
| case kFloat32x4Cid: |
| __ Comment("UnboxedFloat32x4StoreInstanceFieldInstr"); |
| __ movups(FieldAddress(temp, Float32x4::value_offset()), value); |
| break; |
| case kFloat64x2Cid: |
| __ Comment("UnboxedFloat64x2StoreInstanceFieldInstr"); |
| __ movups(FieldAddress(temp, Float64x2::value_offset()), value); |
| break; |
| default: |
| UNREACHABLE(); |
| } |
| return; |
| } |
| |
| if (IsPotentialUnboxedStore()) { |
| Register value_reg = locs()->in(1).reg(); |
| Register temp = locs()->temp(0).reg(); |
| Register temp2 = locs()->temp(1).reg(); |
| FpuRegister fpu_temp = locs()->temp(2).fpu_reg(); |
| |
| Label store_pointer; |
| Label store_double; |
| Label store_float32x4; |
| Label store_float64x2; |
| |
| __ LoadObject(temp, Field::ZoneHandle(field().raw()), PP); |
| |
| __ cmpl(FieldAddress(temp, Field::is_nullable_offset()), |
| Immediate(kNullCid)); |
| __ j(EQUAL, &store_pointer); |
| |
| __ movzxb(temp2, FieldAddress(temp, Field::kind_bits_offset())); |
| __ testq(temp2, Immediate(1 << Field::kUnboxingCandidateBit)); |
| __ j(ZERO, &store_pointer); |
| |
| __ cmpl(FieldAddress(temp, Field::guarded_cid_offset()), |
| Immediate(kDoubleCid)); |
| __ j(EQUAL, &store_double); |
| |
| __ cmpl(FieldAddress(temp, Field::guarded_cid_offset()), |
| Immediate(kFloat32x4Cid)); |
| __ j(EQUAL, &store_float32x4); |
| |
| __ cmpl(FieldAddress(temp, Field::guarded_cid_offset()), |
| Immediate(kFloat64x2Cid)); |
| __ j(EQUAL, &store_float64x2); |
| |
| // Fall through. |
| __ jmp(&store_pointer); |
| |
| if (!compiler->is_optimizing()) { |
| locs()->live_registers()->Add(locs()->in(0)); |
| locs()->live_registers()->Add(locs()->in(1)); |
| } |
| |
| { |
| __ Bind(&store_double); |
| Label copy_double; |
| StoreInstanceFieldSlowPath* slow_path = |
| new StoreInstanceFieldSlowPath(this, compiler->double_class()); |
| compiler->AddSlowPathCode(slow_path); |
| |
| __ movq(temp, FieldAddress(instance_reg, offset_in_bytes_)); |
| __ CompareObject(temp, Object::null_object(), PP); |
| __ j(NOT_EQUAL, ©_double); |
| |
| __ TryAllocate(compiler->double_class(), |
| slow_path->entry_label(), |
| Assembler::kFarJump, |
| temp, |
| PP); |
| __ Bind(slow_path->exit_label()); |
| __ movq(temp2, temp); |
| __ StoreIntoObject(instance_reg, |
| FieldAddress(instance_reg, offset_in_bytes_), |
| temp2); |
| |
| __ Bind(©_double); |
| __ movsd(fpu_temp, FieldAddress(value_reg, Double::value_offset())); |
| __ movsd(FieldAddress(temp, Double::value_offset()), fpu_temp); |
| __ jmp(&skip_store); |
| } |
| |
| { |
| __ Bind(&store_float32x4); |
| Label copy_float32x4; |
| StoreInstanceFieldSlowPath* slow_path = |
| new StoreInstanceFieldSlowPath(this, compiler->float32x4_class()); |
| compiler->AddSlowPathCode(slow_path); |
| |
| __ movq(temp, FieldAddress(instance_reg, offset_in_bytes_)); |
| __ CompareObject(temp, Object::null_object(), PP); |
| __ j(NOT_EQUAL, ©_float32x4); |
| |
| __ TryAllocate(compiler->float32x4_class(), |
| slow_path->entry_label(), |
| Assembler::kFarJump, |
| temp, |
| PP); |
| __ Bind(slow_path->exit_label()); |
| __ movq(temp2, temp); |
| __ StoreIntoObject(instance_reg, |
| FieldAddress(instance_reg, offset_in_bytes_), |
| temp2); |
| |
| __ Bind(©_float32x4); |
| __ movups(fpu_temp, FieldAddress(value_reg, Float32x4::value_offset())); |
| __ movups(FieldAddress(temp, Float32x4::value_offset()), fpu_temp); |
| __ jmp(&skip_store); |
| } |
| |
| { |
| __ Bind(&store_float64x2); |
| Label copy_float64x2; |
| |
| StoreInstanceFieldSlowPath* slow_path = |
| new StoreInstanceFieldSlowPath(this, compiler->float64x2_class()); |
| compiler->AddSlowPathCode(slow_path); |
| |
| __ movq(temp, FieldAddress(instance_reg, offset_in_bytes_)); |
| __ CompareObject(temp, Object::null_object(), PP); |
| __ j(NOT_EQUAL, ©_float64x2); |
| |
| __ TryAllocate(compiler->float64x2_class(), |
| slow_path->entry_label(), |
| Assembler::kFarJump, |
| temp, |
| temp2); |
| __ Bind(slow_path->exit_label()); |
| __ movq(temp2, temp); |
| __ StoreIntoObject(instance_reg, |
| FieldAddress(instance_reg, offset_in_bytes_), |
| temp2); |
| |
| __ Bind(©_float64x2); |
| __ movups(fpu_temp, FieldAddress(value_reg, Float64x2::value_offset())); |
| __ movups(FieldAddress(temp, Float64x2::value_offset()), fpu_temp); |
| __ jmp(&skip_store); |
| } |
| |
| __ Bind(&store_pointer); |
| } |
| |
| if (ShouldEmitStoreBarrier()) { |
| Register value_reg = locs()->in(1).reg(); |
| __ StoreIntoObject(instance_reg, |
| FieldAddress(instance_reg, offset_in_bytes_), |
| value_reg, |
| CanValueBeSmi()); |
| } else { |
| if (locs()->in(1).IsConstant()) { |
| __ StoreObject(FieldAddress(instance_reg, offset_in_bytes_), |
| locs()->in(1).constant(), PP); |
| } else { |
| Register value_reg = locs()->in(1).reg(); |
| __ StoreIntoObjectNoBarrier(instance_reg, |
| FieldAddress(instance_reg, offset_in_bytes_), value_reg); |
| } |
| } |
| __ Bind(&skip_store); |
| } |
| |
| |
| LocationSummary* LoadStaticFieldInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 1; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RequiresRegister()); |
| summary->set_out(0, Location::RequiresRegister()); |
| return summary; |
| } |
| |
| |
| // When the parser is building an implicit static getter for optimization, |
| // it can generate a function body where deoptimization ids do not line up |
| // with the unoptimized code. |
| // |
| // This is safe only so long as LoadStaticFieldInstr cannot deoptimize. |
| void LoadStaticFieldInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| Register field = locs()->in(0).reg(); |
| Register result = locs()->out(0).reg(); |
| __ movq(result, FieldAddress(field, Field::value_offset())); |
| } |
| |
| |
| LocationSummary* StoreStaticFieldInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| LocationSummary* locs = new(isolate) LocationSummary( |
| isolate, 1, 1, LocationSummary::kNoCall); |
| locs->set_in(0, value()->NeedsStoreBuffer() ? Location::WritableRegister() |
| : Location::RequiresRegister()); |
| locs->set_temp(0, Location::RequiresRegister()); |
| return locs; |
| } |
| |
| |
| void StoreStaticFieldInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| Register value = locs()->in(0).reg(); |
| Register temp = locs()->temp(0).reg(); |
| |
| __ LoadObject(temp, field(), PP); |
| if (this->value()->NeedsStoreBuffer()) { |
| __ StoreIntoObject(temp, |
| FieldAddress(temp, Field::value_offset()), value, CanValueBeSmi()); |
| } else { |
| __ StoreIntoObjectNoBarrier( |
| temp, FieldAddress(temp, Field::value_offset()), value); |
| } |
| } |
| |
| |
| LocationSummary* InstanceOfInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 3; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kCall); |
| summary->set_in(0, Location::RegisterLocation(RAX)); |
| summary->set_in(1, Location::RegisterLocation(RCX)); |
| summary->set_in(2, Location::RegisterLocation(RDX)); |
| summary->set_out(0, Location::RegisterLocation(RAX)); |
| return summary; |
| } |
| |
| |
| void InstanceOfInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| ASSERT(locs()->in(0).reg() == RAX); // Value. |
| ASSERT(locs()->in(1).reg() == RCX); // Instantiator. |
| ASSERT(locs()->in(2).reg() == RDX); // Instantiator type arguments. |
| |
| compiler->GenerateInstanceOf(token_pos(), |
| deopt_id(), |
| type(), |
| negate_result(), |
| locs()); |
| ASSERT(locs()->out(0).reg() == RAX); |
| } |
| |
| |
| // TODO(srdjan): In case of constant inputs make CreateArray kNoCall and |
| // use slow path stub. |
| LocationSummary* CreateArrayInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 2; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* locs = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kCall); |
| locs->set_in(0, Location::RegisterLocation(RBX)); |
| locs->set_in(1, Location::RegisterLocation(R10)); |
| locs->set_out(0, Location::RegisterLocation(RAX)); |
| return locs; |
| } |
| |
| |
| // Inlines array allocation for known constant values. |
| static void InlineArrayAllocation(FlowGraphCompiler* compiler, |
| intptr_t num_elements, |
| Label* slow_path, |
| Label* done) { |
| const Register kLengthReg = R10; |
| const Register kElemTypeReg = RBX; |
| const intptr_t kArraySize = Array::InstanceSize(num_elements); |
| |
| Isolate* isolate = Isolate::Current(); |
| Heap* heap = isolate->heap(); |
| |
| __ movq(RAX, Immediate(heap->TopAddress())); |
| __ movq(RAX, Address(RAX, 0)); |
| __ movq(RCX, RAX); |
| |
| __ addq(RCX, Immediate(kArraySize)); |
| __ j(CARRY, slow_path); |
| |
| // Check if the allocation fits into the remaining space. |
| // RAX: potential new object start. |
| // RCX: potential next object start. |
| __ movq(R13, Immediate(heap->EndAddress())); |
| __ cmpq(RCX, Address(R13, 0)); |
| __ j(ABOVE_EQUAL, slow_path); |
| |
| // Successfully allocated the object(s), now update top to point to |
| // next object start and initialize the object. |
| __ movq(R13, Immediate(heap->TopAddress())); |
| __ movq(Address(R13, 0), RCX); |
| __ addq(RAX, Immediate(kHeapObjectTag)); |
| __ movq(R13, Immediate(kArraySize)); |
| __ UpdateAllocationStatsWithSize(kArrayCid, R13); |
| |
| // Initialize the tags. |
| // RAX: new object start as a tagged pointer. |
| { |
| uword tags = 0; |
| tags = RawObject::ClassIdTag::update(kArrayCid, tags); |
| tags = RawObject::SizeTag::update(kArraySize, tags); |
| __ movq(FieldAddress(RAX, Array::tags_offset()), Immediate(tags)); |
| } |
| |
| // RAX: new object start as a tagged pointer. |
| // Store the type argument field. |
| __ StoreIntoObjectNoBarrier(RAX, |
| FieldAddress(RAX, Array::type_arguments_offset()), |
| kElemTypeReg); |
| |
| // Set the length field. |
| __ StoreIntoObjectNoBarrier(RAX, |
| FieldAddress(RAX, Array::length_offset()), |
| kLengthReg); |
| |
| // Initialize all array elements to raw_null. |
| // RAX: new object start as a tagged pointer. |
| // RCX: new object end address. |
| // RDI: iterator which initially points to the start of the variable |
| // data area to be initialized. |
| __ LoadObject(R12, Object::null_object(), PP); |
| __ leaq(RDI, FieldAddress(RAX, sizeof(RawArray))); |
| Label init_loop; |
| __ Bind(&init_loop); |
| __ cmpq(RDI, RCX); |
| __ j(ABOVE_EQUAL, done, Assembler::kNearJump); |
| __ movq(Address(RDI, 0), R12); |
| __ addq(RDI, Immediate(kWordSize)); |
| __ jmp(&init_loop, Assembler::kNearJump); |
| } |
| |
| |
| void CreateArrayInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| // Allocate the array. R10 = length, RBX = element type. |
| const Register kLengthReg = R10; |
| const Register kElemTypeReg = RBX; |
| const Register kResultReg = RAX; |
| ASSERT(locs()->in(0).reg() == kElemTypeReg); |
| ASSERT(locs()->in(1).reg() == kLengthReg); |
| |
| Label slow_path, done; |
| if (num_elements()->BindsToConstant() && |
| num_elements()->BoundConstant().IsSmi()) { |
| const intptr_t length = Smi::Cast(num_elements()->BoundConstant()).Value(); |
| if ((length >= 0) && (length <= Array::kMaxElements)) { |
| Label slow_path, done; |
| InlineArrayAllocation(compiler, length, &slow_path, &done); |
| __ Bind(&slow_path); |
| __ PushObject(Object::ZoneHandle(), PP); // Make room for the result. |
| __ pushq(kLengthReg); |
| __ pushq(kElemTypeReg); |
| compiler->GenerateRuntimeCall(token_pos(), |
| deopt_id(), |
| kAllocateArrayRuntimeEntry, |
| 2, |
| locs()); |
| __ Drop(2); |
| __ popq(kResultReg); |
| __ Bind(&done); |
| return; |
| } |
| } |
| |
| __ Bind(&slow_path); |
| compiler->GenerateCall(token_pos(), |
| &StubCode::AllocateArrayLabel(), |
| PcDescriptors::kOther, |
| locs()); |
| __ Bind(&done); |
| ASSERT(locs()->out(0).reg() == kResultReg); |
| } |
| |
| |
| class BoxDoubleSlowPath : public SlowPathCode { |
| public: |
| explicit BoxDoubleSlowPath(Instruction* instruction) |
| : instruction_(instruction) { } |
| |
| virtual void EmitNativeCode(FlowGraphCompiler* compiler) { |
| __ Comment("BoxDoubleSlowPath"); |
| __ Bind(entry_label()); |
| const Class& double_class = compiler->double_class(); |
| const Code& stub = |
| Code::Handle(StubCode::GetAllocationStubForClass(double_class)); |
| const ExternalLabel label(stub.EntryPoint()); |
| |
| LocationSummary* locs = instruction_->locs(); |
| locs->live_registers()->Remove(locs->out(0)); |
| |
| compiler->SaveLiveRegisters(locs); |
| compiler->GenerateCall(Scanner::kNoSourcePos, // No token position. |
| &label, |
| PcDescriptors::kOther, |
| locs); |
| __ MoveRegister(locs->out(0).reg(), RAX); |
| compiler->RestoreLiveRegisters(locs); |
| |
| __ jmp(exit_label()); |
| } |
| |
| private: |
| Instruction* instruction_; |
| }; |
| |
| |
| class BoxFloat32x4SlowPath : public SlowPathCode { |
| public: |
| explicit BoxFloat32x4SlowPath(Instruction* instruction) |
| : instruction_(instruction) { } |
| |
| virtual void EmitNativeCode(FlowGraphCompiler* compiler) { |
| __ Comment("BoxFloat32x4SlowPath"); |
| __ Bind(entry_label()); |
| const Class& float32x4_class = compiler->float32x4_class(); |
| const Code& stub = |
| Code::Handle(StubCode::GetAllocationStubForClass(float32x4_class)); |
| const ExternalLabel label(stub.EntryPoint()); |
| |
| LocationSummary* locs = instruction_->locs(); |
| locs->live_registers()->Remove(locs->out(0)); |
| |
| compiler->SaveLiveRegisters(locs); |
| compiler->GenerateCall(Scanner::kNoSourcePos, // No token position. |
| &label, |
| PcDescriptors::kOther, |
| locs); |
| __ MoveRegister(locs->out(0).reg(), RAX); |
| compiler->RestoreLiveRegisters(locs); |
| |
| __ jmp(exit_label()); |
| } |
| |
| private: |
| Instruction* instruction_; |
| }; |
| |
| |
| class BoxFloat64x2SlowPath : public SlowPathCode { |
| public: |
| explicit BoxFloat64x2SlowPath(Instruction* instruction) |
| : instruction_(instruction) { } |
| |
| virtual void EmitNativeCode(FlowGraphCompiler* compiler) { |
| __ Comment("BoxFloat64x2SlowPath"); |
| __ Bind(entry_label()); |
| const Class& float64x2_class = compiler->float64x2_class(); |
| const Code& stub = |
| Code::Handle(StubCode::GetAllocationStubForClass(float64x2_class)); |
| const ExternalLabel label(stub.EntryPoint()); |
| |
| LocationSummary* locs = instruction_->locs(); |
| locs->live_registers()->Remove(locs->out(0)); |
| |
| compiler->SaveLiveRegisters(locs); |
| compiler->GenerateCall(Scanner::kNoSourcePos, // No token position. |
| &label, |
| PcDescriptors::kOther, |
| locs); |
| __ MoveRegister(locs->out(0).reg(), RAX); |
| compiler->RestoreLiveRegisters(locs); |
| |
| __ jmp(exit_label()); |
| } |
| |
| private: |
| Instruction* instruction_; |
| }; |
| |
| |
| LocationSummary* LoadFieldInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 1; |
| const intptr_t kNumTemps = |
| (IsUnboxedLoad() && opt) ? 1 : |
| ((IsPotentialUnboxedLoad()) ? 2 : 0); |
| LocationSummary* locs = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, |
| (opt && !IsPotentialUnboxedLoad()) |
| ? LocationSummary::kNoCall |
| : LocationSummary::kCallOnSlowPath); |
| |
| locs->set_in(0, Location::RequiresRegister()); |
| |
| if (IsUnboxedLoad() && opt) { |
| locs->set_temp(0, Location::RequiresRegister()); |
| } else if (IsPotentialUnboxedLoad()) { |
| locs->set_temp(0, opt ? Location::RequiresFpuRegister() |
| : Location::FpuRegisterLocation(XMM1)); |
| locs->set_temp(1, Location::RequiresRegister()); |
| } |
| locs->set_out(0, Location::RequiresRegister()); |
| return locs; |
| } |
| |
| |
| void LoadFieldInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| Register instance_reg = locs()->in(0).reg(); |
| if (IsUnboxedLoad() && compiler->is_optimizing()) { |
| XmmRegister result = locs()->out(0).fpu_reg(); |
| Register temp = locs()->temp(0).reg(); |
| __ movq(temp, FieldAddress(instance_reg, offset_in_bytes())); |
| intptr_t cid = field()->UnboxedFieldCid(); |
| switch (cid) { |
| case kDoubleCid: |
| __ Comment("UnboxedDoubleLoadFieldInstr"); |
| __ movsd(result, FieldAddress(temp, Double::value_offset())); |
| break; |
| case kFloat32x4Cid: |
| __ Comment("UnboxedFloat32x4LoadFieldInstr"); |
| __ movups(result, FieldAddress(temp, Float32x4::value_offset())); |
| break; |
| case kFloat64x2Cid: |
| __ Comment("UnboxedFloat64x2LoadFieldInstr"); |
| __ movups(result, FieldAddress(temp, Float64x2::value_offset())); |
| break; |
| default: |
| UNREACHABLE(); |
| } |
| return; |
| } |
| |
| Label done; |
| Register result = locs()->out(0).reg(); |
| if (IsPotentialUnboxedLoad()) { |
| Register temp = locs()->temp(1).reg(); |
| XmmRegister value = locs()->temp(0).fpu_reg(); |
| |
| Label load_pointer; |
| Label load_double; |
| Label load_float32x4; |
| Label load_float64x2; |
| |
| __ LoadObject(result, Field::ZoneHandle(field()->raw()), PP); |
| |
| __ cmpl(FieldAddress(result, Field::is_nullable_offset()), |
| Immediate(kNullCid)); |
| __ j(EQUAL, &load_pointer); |
| |
| __ cmpl(FieldAddress(result, Field::guarded_cid_offset()), |
| Immediate(kDoubleCid)); |
| __ j(EQUAL, &load_double); |
| |
| __ cmpl(FieldAddress(result, Field::guarded_cid_offset()), |
| Immediate(kFloat32x4Cid)); |
| __ j(EQUAL, &load_float32x4); |
| |
| __ cmpl(FieldAddress(result, Field::guarded_cid_offset()), |
| Immediate(kFloat64x2Cid)); |
| __ j(EQUAL, &load_float64x2); |
| |
| // Fall through. |
| __ jmp(&load_pointer); |
| |
| if (!compiler->is_optimizing()) { |
| locs()->live_registers()->Add(locs()->in(0)); |
| } |
| |
| { |
| __ Bind(&load_double); |
| BoxDoubleSlowPath* slow_path = new BoxDoubleSlowPath(this); |
| compiler->AddSlowPathCode(slow_path); |
| |
| __ TryAllocate(compiler->double_class(), |
| slow_path->entry_label(), |
| Assembler::kFarJump, |
| result, |
| PP); |
| __ Bind(slow_path->exit_label()); |
| __ movq(temp, FieldAddress(instance_reg, offset_in_bytes())); |
| __ movsd(value, FieldAddress(temp, Double::value_offset())); |
| __ movsd(FieldAddress(result, Double::value_offset()), value); |
| __ jmp(&done); |
| } |
| |
| { |
| __ Bind(&load_float32x4); |
| BoxFloat32x4SlowPath* slow_path = new BoxFloat32x4SlowPath(this); |
| compiler->AddSlowPathCode(slow_path); |
| |
| __ TryAllocate(compiler->float32x4_class(), |
| slow_path->entry_label(), |
| Assembler::kFarJump, |
| result, |
| PP); |
| __ Bind(slow_path->exit_label()); |
| __ movq(temp, FieldAddress(instance_reg, offset_in_bytes())); |
| __ movups(value, FieldAddress(temp, Float32x4::value_offset())); |
| __ movups(FieldAddress(result, Float32x4::value_offset()), value); |
| __ jmp(&done); |
| } |
| |
| { |
| __ Bind(&load_float64x2); |
| BoxFloat64x2SlowPath* slow_path = new BoxFloat64x2SlowPath(this); |
| compiler->AddSlowPathCode(slow_path); |
| |
| __ TryAllocate(compiler->float64x2_class(), |
| slow_path->entry_label(), |
| Assembler::kFarJump, |
| result, |
| temp); |
| __ Bind(slow_path->exit_label()); |
| __ movq(temp, FieldAddress(instance_reg, offset_in_bytes())); |
| __ movups(value, FieldAddress(temp, Float64x2::value_offset())); |
| __ movups(FieldAddress(result, Float64x2::value_offset()), value); |
| __ jmp(&done); |
| } |
| |
| __ Bind(&load_pointer); |
| } |
| __ movq(result, FieldAddress(instance_reg, offset_in_bytes())); |
| __ Bind(&done); |
| } |
| |
| |
| LocationSummary* InstantiateTypeInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 1; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* locs = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kCall); |
| locs->set_in(0, Location::RegisterLocation(RAX)); |
| locs->set_out(0, Location::RegisterLocation(RAX)); |
| return locs; |
| } |
| |
| |
| void InstantiateTypeInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| Register instantiator_reg = locs()->in(0).reg(); |
| Register result_reg = locs()->out(0).reg(); |
| |
| // 'instantiator_reg' is the instantiator TypeArguments object (or null). |
| // A runtime call to instantiate the type is required. |
| __ PushObject(Object::ZoneHandle(), PP); // Make room for the result. |
| __ PushObject(type(), PP); |
| __ pushq(instantiator_reg); // Push instantiator type arguments. |
| compiler->GenerateRuntimeCall(token_pos(), |
| deopt_id(), |
| kInstantiateTypeRuntimeEntry, |
| 2, |
| locs()); |
| __ Drop(2); // Drop instantiator and uninstantiated type. |
| __ popq(result_reg); // Pop instantiated type. |
| ASSERT(instantiator_reg == result_reg); |
| } |
| |
| |
| LocationSummary* InstantiateTypeArgumentsInstr::MakeLocationSummary( |
| Isolate* isolate, bool opt) const { |
| const intptr_t kNumInputs = 1; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* locs = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kCall); |
| locs->set_in(0, Location::RegisterLocation(RAX)); |
| locs->set_out(0, Location::RegisterLocation(RAX)); |
| return locs; |
| } |
| |
| |
| void InstantiateTypeArgumentsInstr::EmitNativeCode( |
| FlowGraphCompiler* compiler) { |
| Register instantiator_reg = locs()->in(0).reg(); |
| Register result_reg = locs()->out(0).reg(); |
| ASSERT(instantiator_reg == RAX); |
| ASSERT(instantiator_reg == result_reg); |
| |
| // 'instantiator_reg' is the instantiator TypeArguments object (or null). |
| ASSERT(!type_arguments().IsUninstantiatedIdentity() && |
| !type_arguments().CanShareInstantiatorTypeArguments( |
| instantiator_class())); |
| // If the instantiator is null and if the type argument vector |
| // instantiated from null becomes a vector of dynamic, then use null as |
| // the type arguments. |
| Label type_arguments_instantiated; |
| const intptr_t len = type_arguments().Length(); |
| if (type_arguments().IsRawInstantiatedRaw(len)) { |
| __ CompareObject(instantiator_reg, Object::null_object(), PP); |
| __ j(EQUAL, &type_arguments_instantiated, Assembler::kNearJump); |
| } |
| |
| // Lookup cache before calling runtime. |
| // TODO(fschneider): Consider moving this into a shared stub to reduce |
| // generated code size. |
| __ LoadObject(RDI, type_arguments(), PP); |
| __ movq(RDI, FieldAddress(RDI, TypeArguments::instantiations_offset())); |
| __ leaq(RDI, FieldAddress(RDI, Array::data_offset())); |
| // The instantiations cache is initialized with Object::zero_array() and is |
| // therefore guaranteed to contain kNoInstantiator. No length check needed. |
| Label loop, found, slow_case; |
| __ Bind(&loop); |
| __ movq(RDX, Address(RDI, 0 * kWordSize)); // Cached instantiator. |
| __ cmpq(RDX, RAX); |
| __ j(EQUAL, &found, Assembler::kNearJump); |
| __ addq(RDI, Immediate(2 * kWordSize)); |
| __ cmpq(RDX, Immediate(Smi::RawValue(StubCode::kNoInstantiator))); |
| __ j(NOT_EQUAL, &loop, Assembler::kNearJump); |
| __ jmp(&slow_case, Assembler::kNearJump); |
| __ Bind(&found); |
| __ movq(RAX, Address(RDI, 1 * kWordSize)); // Cached instantiated args. |
| __ jmp(&type_arguments_instantiated, Assembler::kNearJump); |
| |
| __ Bind(&slow_case); |
| // Instantiate non-null type arguments. |
| // A runtime call to instantiate the type arguments is required. |
| __ PushObject(Object::ZoneHandle(), PP); // Make room for the result. |
| __ PushObject(type_arguments(), PP); |
| __ pushq(instantiator_reg); // Push instantiator type arguments. |
| compiler->GenerateRuntimeCall(token_pos(), |
| deopt_id(), |
| kInstantiateTypeArgumentsRuntimeEntry, |
| 2, |
| locs()); |
| __ Drop(2); // Drop instantiator and uninstantiated type arguments. |
| __ popq(result_reg); // Pop instantiated type arguments. |
| __ Bind(&type_arguments_instantiated); |
| ASSERT(instantiator_reg == result_reg); |
| } |
| |
| |
| LocationSummary* AllocateContextInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 0; |
| const intptr_t kNumTemps = 1; |
| LocationSummary* locs = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kCall); |
| locs->set_temp(0, Location::RegisterLocation(R10)); |
| locs->set_out(0, Location::RegisterLocation(RAX)); |
| return locs; |
| } |
| |
| |
| void AllocateContextInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| ASSERT(locs()->temp(0).reg() == R10); |
| ASSERT(locs()->out(0).reg() == RAX); |
| |
| __ LoadImmediate(R10, Immediate(num_context_variables()), PP); |
| const ExternalLabel label(StubCode::AllocateContextEntryPoint()); |
| compiler->GenerateCall(token_pos(), |
| &label, |
| PcDescriptors::kOther, |
| locs()); |
| } |
| |
| |
| LocationSummary* CloneContextInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 1; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* locs = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kCall); |
| locs->set_in(0, Location::RegisterLocation(RAX)); |
| locs->set_out(0, Location::RegisterLocation(RAX)); |
| return locs; |
| } |
| |
| |
| void CloneContextInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| Register context_value = locs()->in(0).reg(); |
| Register result = locs()->out(0).reg(); |
| |
| __ PushObject(Object::ZoneHandle(), PP); // Make room for the result. |
| __ pushq(context_value); |
| compiler->GenerateRuntimeCall(token_pos(), |
| deopt_id(), |
| kCloneContextRuntimeEntry, |
| 1, |
| locs()); |
| __ popq(result); // Remove argument. |
| __ popq(result); // Get result (cloned context). |
| } |
| |
| |
| LocationSummary* CatchBlockEntryInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| UNREACHABLE(); |
| return NULL; |
| } |
| |
| |
| void CatchBlockEntryInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| __ Bind(compiler->GetJumpLabel(this)); |
| compiler->AddExceptionHandler(catch_try_index(), |
| try_index(), |
| compiler->assembler()->CodeSize(), |
| catch_handler_types_, |
| needs_stacktrace()); |
| |
| // Restore the pool pointer. |
| __ LoadPoolPointer(PP); |
| |
| if (HasParallelMove()) { |
| compiler->parallel_move_resolver()->EmitNativeCode(parallel_move()); |
| } |
| |
| // Restore RSP from RBP as we are coming from a throw and the code for |
| // popping arguments has not been run. |
| const intptr_t fp_sp_dist = |
| (kFirstLocalSlotFromFp + 1 - compiler->StackSize()) * kWordSize; |
| ASSERT(fp_sp_dist <= 0); |
| __ leaq(RSP, Address(RBP, fp_sp_dist)); |
| |
| // Restore stack and initialize the two exception variables: |
| // exception and stack trace variables. |
| __ movq(Address(RBP, exception_var().index() * kWordSize), |
| kExceptionObjectReg); |
| __ movq(Address(RBP, stacktrace_var().index() * kWordSize), |
| kStackTraceObjectReg); |
| } |
| |
| |
| LocationSummary* CheckStackOverflowInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 0; |
| const intptr_t kNumTemps = 1; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, |
| kNumTemps, |
| LocationSummary::kCallOnSlowPath); |
| summary->set_temp(0, Location::RequiresRegister()); |
| return summary; |
| } |
| |
| |
| class CheckStackOverflowSlowPath : public SlowPathCode { |
| public: |
| explicit CheckStackOverflowSlowPath(CheckStackOverflowInstr* instruction) |
| : instruction_(instruction) { } |
| |
| virtual void EmitNativeCode(FlowGraphCompiler* compiler) { |
| if (FLAG_use_osr) { |
| uword flags_address = Isolate::Current()->stack_overflow_flags_address(); |
| Register temp = instruction_->locs()->temp(0).reg(); |
| __ Comment("CheckStackOverflowSlowPathOsr"); |
| __ Bind(osr_entry_label()); |
| __ LoadImmediate(temp, Immediate(flags_address), PP); |
| __ movq(Address(temp, 0), Immediate(Isolate::kOsrRequest)); |
| } |
| __ Comment("CheckStackOverflowSlowPath"); |
| __ Bind(entry_label()); |
| compiler->SaveLiveRegisters(instruction_->locs()); |
| // pending_deoptimization_env_ is needed to generate a runtime call that |
| // may throw an exception. |
| ASSERT(compiler->pending_deoptimization_env_ == NULL); |
| Environment* env = compiler->SlowPathEnvironmentFor(instruction_); |
| compiler->pending_deoptimization_env_ = env; |
| compiler->GenerateRuntimeCall(instruction_->token_pos(), |
| instruction_->deopt_id(), |
| kStackOverflowRuntimeEntry, |
| 0, |
| instruction_->locs()); |
| |
| if (FLAG_use_osr && !compiler->is_optimizing() && instruction_->in_loop()) { |
| // In unoptimized code, record loop stack checks as possible OSR entries. |
| compiler->AddCurrentDescriptor(PcDescriptors::kOsrEntry, |
| instruction_->deopt_id(), |
| 0); // No token position. |
| } |
| compiler->pending_deoptimization_env_ = NULL; |
| compiler->RestoreLiveRegisters(instruction_->locs()); |
| __ jmp(exit_label()); |
| } |
| |
| |
| Label* osr_entry_label() { |
| ASSERT(FLAG_use_osr); |
| return &osr_entry_label_; |
| } |
| |
| private: |
| CheckStackOverflowInstr* instruction_; |
| Label osr_entry_label_; |
| }; |
| |
| |
| void CheckStackOverflowInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| CheckStackOverflowSlowPath* slow_path = new CheckStackOverflowSlowPath(this); |
| compiler->AddSlowPathCode(slow_path); |
| |
| Register temp = locs()->temp(0).reg(); |
| // Generate stack overflow check. |
| __ LoadImmediate( |
| temp, Immediate(Isolate::Current()->stack_limit_address()), PP); |
| __ cmpq(RSP, Address(temp, 0)); |
| __ j(BELOW_EQUAL, slow_path->entry_label()); |
| if (compiler->CanOSRFunction() && in_loop()) { |
| // In unoptimized code check the usage counter to trigger OSR at loop |
| // stack checks. Use progressively higher thresholds for more deeply |
| // nested loops to attempt to hit outer loops with OSR when possible. |
| __ LoadObject(temp, compiler->parsed_function().function(), PP); |
| int32_t threshold = |
| FLAG_optimization_counter_threshold * (loop_depth() + 1); |
| __ cmpl(FieldAddress(temp, Function::usage_counter_offset()), |
| Immediate(threshold)); |
| __ j(GREATER_EQUAL, slow_path->osr_entry_label()); |
| } |
| if (compiler->ForceSlowPathForStackOverflow()) { |
| __ jmp(slow_path->entry_label()); |
| } |
| __ Bind(slow_path->exit_label()); |
| } |
| |
| |
| static void EmitJavascriptOverflowCheck(FlowGraphCompiler* compiler, |
| Range* range, |
| Label* overflow, |
| Register result) { |
| if (!range->IsWithin(-0x20000000000000LL, 0x20000000000000LL)) { |
| ASSERT(overflow != NULL); |
| // TODO(zra): This can be tightened to one compare/branch using: |
| // overflow = (result + 2^52) > 2^53 with an unsigned comparison. |
| __ CompareImmediate(result, Immediate(-0x20000000000000LL), PP); |
| __ j(LESS, overflow); |
| __ CompareImmediate(result, Immediate(0x20000000000000LL), PP); |
| __ j(GREATER, overflow); |
| } |
| } |
| |
| |
| static void EmitSmiShiftLeft(FlowGraphCompiler* compiler, |
| BinarySmiOpInstr* shift_left) { |
| const bool is_truncating = shift_left->IsTruncating(); |
| const LocationSummary& locs = *shift_left->locs(); |
| Register left = locs.in(0).reg(); |
| Register result = locs.out(0).reg(); |
| ASSERT(left == result); |
| Label* deopt = shift_left->CanDeoptimize() ? |
| compiler->AddDeoptStub(shift_left->deopt_id(), ICData::kDeoptBinarySmiOp) |
| : NULL; |
| if (locs.in(1).IsConstant()) { |
| const Object& constant = locs.in(1).constant(); |
| ASSERT(constant.IsSmi()); |
| // shlq operation masks the count to 6 bits. |
| const intptr_t kCountLimit = 0x3F; |
| const intptr_t value = Smi::Cast(constant).Value(); |
| if (value == 0) { |
| // No code needed. |
| } else if ((value < 0) || (value >= kCountLimit)) { |
| // This condition may not be known earlier in some cases because |
| // of constant propagation, inlining, etc. |
| if ((value >= kCountLimit) && is_truncating) { |
| __ xorq(result, result); |
| } else { |
| // Result is Mint or exception. |
| __ jmp(deopt); |
| } |
| } else { |
| if (!is_truncating) { |
| // Check for overflow. |
| Register temp = locs.temp(0).reg(); |
| __ movq(temp, left); |
| __ shlq(left, Immediate(value)); |
| __ sarq(left, Immediate(value)); |
| __ cmpq(left, temp); |
| __ j(NOT_EQUAL, deopt); // Overflow. |
| } |
| // Shift for result now we know there is no overflow. |
| __ shlq(left, Immediate(value)); |
| } |
| if (FLAG_throw_on_javascript_int_overflow) { |
| EmitJavascriptOverflowCheck(compiler, shift_left->range(), deopt, result); |
| } |
| return; |
| } |
| |
| // Right (locs.in(1)) is not constant. |
| Register right = locs.in(1).reg(); |
| Range* right_range = shift_left->right()->definition()->range(); |
| if (shift_left->left()->BindsToConstant() && !is_truncating) { |
| // TODO(srdjan): Implement code below for is_truncating(). |
| // If left is constant, we know the maximal allowed size for right. |
| const Object& obj = shift_left->left()->BoundConstant(); |
| if (obj.IsSmi()) { |
| const intptr_t left_int = Smi::Cast(obj).Value(); |
| if (left_int == 0) { |
| __ CompareImmediate(right, Immediate(0), PP); |
| __ j(NEGATIVE, deopt); |
| return; |
| } |
| const intptr_t max_right = kSmiBits - Utils::HighestBit(left_int); |
| const bool right_needs_check = |
| (right_range == NULL) || |
| !right_range->IsWithin(0, max_right - 1); |
| if (right_needs_check) { |
| __ CompareImmediate(right, |
| Immediate(reinterpret_cast<int64_t>(Smi::New(max_right))), PP); |
| __ j(ABOVE_EQUAL, deopt); |
| } |
| __ SmiUntag(right); |
| __ shlq(left, right); |
| } |
| if (FLAG_throw_on_javascript_int_overflow) { |
| EmitJavascriptOverflowCheck(compiler, shift_left->range(), deopt, result); |
| } |
| return; |
| } |
| |
| const bool right_needs_check = |
| (right_range == NULL) || !right_range->IsWithin(0, (Smi::kBits - 1)); |
| ASSERT(right == RCX); // Count must be in RCX |
| if (is_truncating) { |
| if (right_needs_check) { |
| const bool right_may_be_negative = |
| (right_range == NULL) || !right_range->IsPositive(); |
| if (right_may_be_negative) { |
| ASSERT(shift_left->CanDeoptimize()); |
| __ CompareImmediate(right, Immediate(0), PP); |
| __ j(NEGATIVE, deopt); |
| } |
| Label done, is_not_zero; |
| __ CompareImmediate(right, |
| Immediate(reinterpret_cast<int64_t>(Smi::New(Smi::kBits))), PP); |
| __ j(BELOW, &is_not_zero, Assembler::kNearJump); |
| __ xorq(left, left); |
| __ jmp(&done, Assembler::kNearJump); |
| __ Bind(&is_not_zero); |
| __ SmiUntag(right); |
| __ shlq(left, right); |
| __ Bind(&done); |
| } else { |
| __ SmiUntag(right); |
| __ shlq(left, right); |
| } |
| } else { |
| if (right_needs_check) { |
| ASSERT(shift_left->CanDeoptimize()); |
| __ CompareImmediate(right, |
| Immediate(reinterpret_cast<int64_t>(Smi::New(Smi::kBits))), PP); |
| __ j(ABOVE_EQUAL, deopt); |
| } |
| // Left is not a constant. |
| Register temp = locs.temp(0).reg(); |
| // Check if count too large for handling it inlined. |
| __ movq(temp, left); |
| __ SmiUntag(right); |
| // Overflow test (preserve temp and right); |
| __ shlq(left, right); |
| __ sarq(left, right); |
| __ cmpq(left, temp); |
| __ j(NOT_EQUAL, deopt); // Overflow. |
| // Shift for result now we know there is no overflow. |
| __ shlq(left, right); |
| } |
| if (FLAG_throw_on_javascript_int_overflow) { |
| EmitJavascriptOverflowCheck(compiler, shift_left->range(), deopt, result); |
| } |
| } |
| |
| |
| static bool CanBeImmediate(const Object& constant) { |
| return constant.IsSmi() && |
| Immediate(reinterpret_cast<int64_t>(constant.raw())).is_int32(); |
| } |
| |
| |
| LocationSummary* BinarySmiOpInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 2; |
| |
| ConstantInstr* right_constant = right()->definition()->AsConstant(); |
| if ((right_constant != NULL) && |
| (op_kind() != Token::kTRUNCDIV) && |
| (op_kind() != Token::kSHL) && |
| (op_kind() != Token::kMUL) && |
| (op_kind() != Token::kMOD) && |
| CanBeImmediate(right_constant->value())) { |
| const intptr_t kNumTemps = 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RequiresRegister()); |
| summary->set_in(1, Location::Constant(right_constant->value())); |
| summary->set_out(0, Location::SameAsFirstInput()); |
| return summary; |
| } |
| |
| if (op_kind() == Token::kTRUNCDIV) { |
| const intptr_t kNumTemps = 1; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| if (RightIsPowerOfTwoConstant()) { |
| summary->set_in(0, Location::RequiresRegister()); |
| ConstantInstr* right_constant = right()->definition()->AsConstant(); |
| summary->set_in(1, Location::Constant(right_constant->value())); |
| summary->set_temp(0, Location::RequiresRegister()); |
| summary->set_out(0, Location::SameAsFirstInput()); |
| } else { |
| // Both inputs must be writable because they will be untagged. |
| summary->set_in(0, Location::RegisterLocation(RAX)); |
| summary->set_in(1, Location::WritableRegister()); |
| summary->set_out(0, Location::SameAsFirstInput()); |
| // Will be used for sign extension and division. |
| summary->set_temp(0, Location::RegisterLocation(RDX)); |
| } |
| return summary; |
| } else if (op_kind() == Token::kMOD) { |
| const intptr_t kNumTemps = 1; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| // Both inputs must be writable because they will be untagged. |
| summary->set_in(0, Location::RegisterLocation(RDX)); |
| summary->set_in(1, Location::WritableRegister()); |
| summary->set_out(0, Location::SameAsFirstInput()); |
| // Will be used for sign extension and division. |
| summary->set_temp(0, Location::RegisterLocation(RAX)); |
| return summary; |
| } else if (op_kind() == Token::kSHR) { |
| const intptr_t kNumTemps = 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RequiresRegister()); |
| summary->set_in(1, Location::FixedRegisterOrSmiConstant(right(), RCX)); |
| summary->set_out(0, Location::SameAsFirstInput()); |
| return summary; |
| } else if (op_kind() == Token::kSHL) { |
| const intptr_t kNumTemps = !IsTruncating() ? 1 : 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RequiresRegister()); |
| summary->set_in(1, Location::FixedRegisterOrSmiConstant(right(), RCX)); |
| if (!IsTruncating()) { |
| summary->set_temp(0, Location::RequiresRegister()); |
| } |
| summary->set_out(0, Location::SameAsFirstInput()); |
| return summary; |
| } else { |
| const intptr_t kNumTemps = 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RequiresRegister()); |
| ConstantInstr* constant = right()->definition()->AsConstant(); |
| if (constant != NULL) { |
| summary->set_in(1, Location::RegisterOrSmiConstant(right())); |
| } else { |
| summary->set_in(1, Location::PrefersRegister()); |
| } |
| summary->set_out(0, Location::SameAsFirstInput()); |
| return summary; |
| } |
| } |
| |
| void BinarySmiOpInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| if (op_kind() == Token::kSHL) { |
| EmitSmiShiftLeft(compiler, this); |
| return; |
| } |
| |
| Register left = locs()->in(0).reg(); |
| Register result = locs()->out(0).reg(); |
| ASSERT(left == result); |
| Label* deopt = NULL; |
| if (CanDeoptimize()) { |
| deopt = compiler->AddDeoptStub(deopt_id(), ICData::kDeoptBinarySmiOp); |
| } |
| |
| if (locs()->in(1).IsConstant()) { |
| const Object& constant = locs()->in(1).constant(); |
| ASSERT(constant.IsSmi()); |
| const int64_t imm = reinterpret_cast<int64_t>(constant.raw()); |
| switch (op_kind()) { |
| case Token::kADD: { |
| if (imm != 0) { |
| // Checking overflow without emitting an instruction would be wrong. |
| __ AddImmediate(left, Immediate(imm), PP); |
| if (deopt != NULL) __ j(OVERFLOW, deopt); |
| } |
| break; |
| } |
| case Token::kSUB: { |
| if (imm != 0) { |
| // Checking overflow without emitting an instruction would be wrong. |
| __ SubImmediate(left, Immediate(imm), PP); |
| if (deopt != NULL) __ j(OVERFLOW, deopt); |
| } |
| break; |
| } |
| case Token::kMUL: { |
| // Keep left value tagged and untag right value. |
| const intptr_t value = Smi::Cast(constant).Value(); |
| if (value == 2) { |
| __ shlq(left, Immediate(1)); |
| } else { |
| __ MulImmediate(left, Immediate(value), PP); |
| } |
| if (deopt != NULL) __ j(OVERFLOW, deopt); |
| break; |
| } |
| case Token::kTRUNCDIV: { |
| const intptr_t value = Smi::Cast(constant).Value(); |
| if (value == 1) { |
| // Do nothing. |
| break; |
| } else if (value == -1) { |
| // Check the corner case of dividing the 'MIN_SMI' with -1, in which |
| // case we cannot negate the result. |
| __ CompareImmediate(left, Immediate(0x8000000000000000), PP); |
| __ j(EQUAL, deopt); |
| __ negq(left); |
| break; |
| } |
| |
| ASSERT(Utils::IsPowerOfTwo(Utils::Abs(value))); |
| const intptr_t shift_count = |
| Utils::ShiftForPowerOfTwo(Utils::Abs(value)) + kSmiTagSize; |
| ASSERT(kSmiTagSize == 1); |
| Register temp = locs()->temp(0).reg(); |
| __ movq(temp, left); |
| __ sarq(temp, Immediate(63)); |
| ASSERT(shift_count > 1); // 1, -1 case handled above. |
| __ shrq(temp, Immediate(64 - shift_count)); |
| __ addq(left, temp); |
| ASSERT(shift_count > 0); |
| __ sarq(left, Immediate(shift_count)); |
| if (value < 0) { |
| __ negq(left); |
| } |
| __ SmiTag(left); |
| break; |
| } |
| case Token::kBIT_AND: { |
| // No overflow check. |
| __ AndImmediate(left, Immediate(imm), PP); |
| break; |
| } |
| case Token::kBIT_OR: { |
| // No overflow check. |
| __ OrImmediate(left, Immediate(imm), PP); |
| break; |
| } |
| case Token::kBIT_XOR: { |
| // No overflow check. |
| __ XorImmediate(left, Immediate(imm), PP); |
| break; |
| } |
| |
| case Token::kSHR: { |
| // sarq operation masks the count to 6 bits. |
| const intptr_t kCountLimit = 0x3F; |
| intptr_t value = Smi::Cast(constant).Value(); |
| |
| if (value == 0) { |
| // TODO(vegorov): should be handled outside. |
| break; |
| } else if (value < 0) { |
| // TODO(vegorov): should be handled outside. |
| __ jmp(deopt); |
| break; |
| } |
| |
| value = value + kSmiTagSize; |
| if (value >= kCountLimit) value = kCountLimit; |
| |
| __ sarq(left, Immediate(value)); |
| __ SmiTag(left); |
| break; |
| } |
| |
| default: |
| UNREACHABLE(); |
| break; |
| } |
| if (FLAG_throw_on_javascript_int_overflow) { |
| EmitJavascriptOverflowCheck(compiler, range(), deopt, result); |
| } |
| return; |
| } // locs()->in(1).IsConstant(). |
| |
| |
| if (locs()->in(1).IsStackSlot()) { |
| const Address& right = locs()->in(1).ToStackSlotAddress(); |
| switch (op_kind()) { |
| case Token::kADD: { |
| __ addq(left, right); |
| if (deopt != NULL) __ j(OVERFLOW, deopt); |
| break; |
| } |
| case Token::kSUB: { |
| __ subq(left, right); |
| if (deopt != NULL) __ j(OVERFLOW, deopt); |
| break; |
| } |
| case Token::kMUL: { |
| __ SmiUntag(left); |
| __ imulq(left, right); |
| if (deopt != NULL) __ j(OVERFLOW, deopt); |
| break; |
| } |
| case Token::kBIT_AND: { |
| // No overflow check. |
| __ andq(left, right); |
| break; |
| } |
| case Token::kBIT_OR: { |
| // No overflow check. |
| __ orq(left, right); |
| break; |
| } |
| case Token::kBIT_XOR: { |
| // No overflow check. |
| __ xorq(left, right); |
| break; |
| } |
| default: |
| UNREACHABLE(); |
| break; |
| } |
| if (FLAG_throw_on_javascript_int_overflow) { |
| EmitJavascriptOverflowCheck(compiler, range(), deopt, result); |
| } |
| return; |
| } // locs()->in(1).IsStackSlot(). |
| |
| // if locs()->in(1).IsRegister. |
| Register right = locs()->in(1).reg(); |
| Range* right_range = this->right()->definition()->range(); |
| switch (op_kind()) { |
| case Token::kADD: { |
| __ addq(left, right); |
| if (deopt != NULL) __ j(OVERFLOW, deopt); |
| break; |
| } |
| case Token::kSUB: { |
| __ subq(left, right); |
| if (deopt != NULL) __ j(OVERFLOW, deopt); |
| break; |
| } |
| case Token::kMUL: { |
| __ SmiUntag(left); |
| __ imulq(left, right); |
| if (deopt != NULL) __ j(OVERFLOW, deopt); |
| break; |
| } |
| case Token::kBIT_AND: { |
| // No overflow check. |
| __ andq(left, right); |
| break; |
| } |
| case Token::kBIT_OR: { |
| // No overflow check. |
| __ orq(left, right); |
| break; |
| } |
| case Token::kBIT_XOR: { |
| // No overflow check. |
| __ xorq(left, right); |
| break; |
| } |
| case Token::kTRUNCDIV: { |
| Label not_32bit, done; |
| |
| Register temp = locs()->temp(0).reg(); |
| ASSERT(left == RAX); |
| ASSERT((right != RDX) && (right != RAX)); |
| ASSERT(temp == RDX); |
| ASSERT(result == RAX); |
| if ((right_range == NULL) || right_range->Overlaps(0, 0)) { |
| // Handle divide by zero in runtime. |
| __ testq(right, right); |
| __ j(ZERO, deopt); |
| } |
| // Check if both operands fit into 32bits as idiv with 64bit operands |
| // requires twice as many cycles and has much higher latency. |
| // We are checking this before untagging them to avoid corner case |
| // dividing INT_MAX by -1 that raises exception because quotient is |
| // too large for 32bit register. |
| __ movsxd(temp, left); |
| __ cmpq(temp, left); |
| __ j(NOT_EQUAL, ¬_32bit); |
| __ movsxd(temp, right); |
| __ cmpq(temp, right); |
| __ j(NOT_EQUAL, ¬_32bit); |
| |
| // Both operands are 31bit smis. Divide using 32bit idiv. |
| __ SmiUntag(left); |
| __ SmiUntag(right); |
| __ cdq(); |
| __ idivl(right); |
| __ movsxd(result, result); |
| __ jmp(&done); |
| |
| // Divide using 64bit idiv. |
| __ Bind(¬_32bit); |
| __ SmiUntag(left); |
| __ SmiUntag(right); |
| __ cqo(); // Sign extend RAX -> RDX:RAX. |
| __ idivq(right); // RAX: quotient, RDX: remainder. |
| // Check the corner case of dividing the 'MIN_SMI' with -1, in which |
| // case we cannot tag the result. |
| __ CompareImmediate(result, Immediate(0x4000000000000000), PP); |
| __ j(EQUAL, deopt); |
| __ Bind(&done); |
| __ SmiTag(result); |
| break; |
| } |
| case Token::kMOD: { |
| Label not_32bit, div_done; |
| |
| Register temp = locs()->temp(0).reg(); |
| ASSERT(left == RDX); |
| ASSERT((right != RDX) && (right != RAX)); |
| ASSERT(temp == RAX); |
| ASSERT(result == RDX); |
| if ((right_range == NULL) || right_range->Overlaps(0, 0)) { |
| // Handle divide by zero in runtime. |
| __ testq(right, right); |
| __ j(ZERO, deopt); |
| } |
| // Check if both operands fit into 32bits as idiv with 64bit operands |
| // requires twice as many cycles and has much higher latency. |
| // We are checking this before untagging them to avoid corner case |
| // dividing INT_MAX by -1 that raises exception because quotient is |
| // too large for 32bit register. |
| __ movsxd(temp, left); |
| __ cmpq(temp, left); |
| __ j(NOT_EQUAL, ¬_32bit); |
| __ movsxd(temp, right); |
| __ cmpq(temp, right); |
| __ j(NOT_EQUAL, ¬_32bit); |
| // Both operands are 31bit smis. Divide using 32bit idiv. |
| __ SmiUntag(left); |
| __ SmiUntag(right); |
| __ movq(RAX, RDX); |
| __ cdq(); |
| __ idivl(right); |
| __ movsxd(result, result); |
| __ jmp(&div_done); |
| |
| // Divide using 64bit idiv. |
| __ Bind(¬_32bit); |
| __ SmiUntag(left); |
| __ SmiUntag(right); |
| __ movq(RAX, RDX); |
| __ cqo(); // Sign extend RAX -> RDX:RAX. |
| __ idivq(right); // RAX: quotient, RDX: remainder. |
| __ Bind(&div_done); |
| // res = left % right; |
| // if (res < 0) { |
| // if (right < 0) { |
| // res = res - right; |
| // } else { |
| // res = res + right; |
| // } |
| // } |
| Label all_done; |
| __ cmpq(result, Immediate(0)); |
| __ j(GREATER_EQUAL, &all_done, Assembler::kNearJump); |
| // Result is negative, adjust it. |
| if ((right_range == NULL) || right_range->Overlaps(-1, 1)) { |
| Label subtract; |
| __ cmpq(right, Immediate(0)); |
| __ j(LESS, &subtract, Assembler::kNearJump); |
| __ addq(result, right); |
| __ jmp(&all_done, Assembler::kNearJump); |
| __ Bind(&subtract); |
| __ subq(result, right); |
| } else if (right_range->IsPositive()) { |
| // Right is positive. |
| __ addq(result, right); |
| } else { |
| // Right is negative. |
| __ subq(result, right); |
| } |
| __ Bind(&all_done); |
| __ SmiTag(result); |
| break; |
| } |
| case Token::kSHR: { |
| if (CanDeoptimize()) { |
| __ CompareImmediate(right, Immediate(0), PP); |
| __ j(LESS, deopt); |
| } |
| __ SmiUntag(right); |
| // sarq operation masks the count to 6 bits. |
| const intptr_t kCountLimit = 0x3F; |
| if ((right_range == NULL) || |
| !right_range->OnlyLessThanOrEqualTo(kCountLimit)) { |
| __ CompareImmediate(right, Immediate(kCountLimit), PP); |
| Label count_ok; |
| __ j(LESS, &count_ok, Assembler::kNearJump); |
| __ LoadImmediate(right, Immediate(kCountLimit), PP); |
| __ Bind(&count_ok); |
| } |
| ASSERT(right == RCX); // Count must be in RCX |
| __ SmiUntag(left); |
| __ sarq(left, right); |
| __ SmiTag(left); |
| break; |
| } |
| case Token::kDIV: { |
| // Dispatches to 'Double./'. |
| // TODO(srdjan): Implement as conversion to double and double division. |
| UNREACHABLE(); |
| break; |
| } |
| case Token::kOR: |
| case Token::kAND: { |
| // Flow graph builder has dissected this operation to guarantee correct |
| // behavior (short-circuit evaluation). |
| UNREACHABLE(); |
| break; |
| } |
| default: |
| UNREACHABLE(); |
| break; |
| } |
| if (FLAG_throw_on_javascript_int_overflow) { |
| EmitJavascriptOverflowCheck(compiler, range(), deopt, result); |
| } |
| } |
| |
| |
| LocationSummary* CheckEitherNonSmiInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| intptr_t left_cid = left()->Type()->ToCid(); |
| intptr_t right_cid = right()->Type()->ToCid(); |
| ASSERT((left_cid != kDoubleCid) && (right_cid != kDoubleCid)); |
| const intptr_t kNumInputs = 2; |
| const bool need_temp = (left()->definition() != right()->definition()) |
| && (left_cid != kSmiCid) |
| && (right_cid != kSmiCid); |
| const intptr_t kNumTemps = need_temp ? 1 : 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RequiresRegister()); |
| summary->set_in(1, Location::RequiresRegister()); |
| if (need_temp) summary->set_temp(0, Location::RequiresRegister()); |
| return summary; |
| } |
| |
| |
| void CheckEitherNonSmiInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| Label* deopt = compiler->AddDeoptStub(deopt_id(), |
| ICData::kDeoptBinaryDoubleOp); |
| intptr_t left_cid = left()->Type()->ToCid(); |
| intptr_t right_cid = right()->Type()->ToCid(); |
| Register left = locs()->in(0).reg(); |
| Register right = locs()->in(1).reg(); |
| if (this->left()->definition() == this->right()->definition()) { |
| __ testq(left, Immediate(kSmiTagMask)); |
| } else if (left_cid == kSmiCid) { |
| __ testq(right, Immediate(kSmiTagMask)); |
| } else if (right_cid == kSmiCid) { |
| __ testq(left, Immediate(kSmiTagMask)); |
| } else { |
| Register temp = locs()->temp(0).reg(); |
| __ movq(temp, left); |
| __ orq(temp, right); |
| __ testq(temp, Immediate(kSmiTagMask)); |
| } |
| __ j(ZERO, deopt); |
| } |
| |
| |
| LocationSummary* BoxDoubleInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 1; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, |
| kNumTemps, |
| LocationSummary::kCallOnSlowPath); |
| summary->set_in(0, Location::RequiresFpuRegister()); |
| summary->set_out(0, Location::RequiresRegister()); |
| return summary; |
| } |
| |
| |
| void BoxDoubleInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| BoxDoubleSlowPath* slow_path = new BoxDoubleSlowPath(this); |
| compiler->AddSlowPathCode(slow_path); |
| |
| Register out_reg = locs()->out(0).reg(); |
| XmmRegister value = locs()->in(0).fpu_reg(); |
| |
| __ TryAllocate(compiler->double_class(), |
| slow_path->entry_label(), |
| Assembler::kFarJump, |
| out_reg, |
| PP); |
| __ Bind(slow_path->exit_label()); |
| __ movsd(FieldAddress(out_reg, Double::value_offset()), value); |
| } |
| |
| |
| LocationSummary* UnboxDoubleInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 1; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| const bool needs_writable_input = (value()->Type()->ToCid() != kDoubleCid); |
| summary->set_in(0, needs_writable_input |
| ? Location::WritableRegister() |
| : Location::RequiresRegister()); |
| summary->set_out(0, Location::RequiresFpuRegister()); |
| return summary; |
| } |
| |
| |
| void UnboxDoubleInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| CompileType* value_type = value()->Type(); |
| const intptr_t value_cid = value_type->ToCid(); |
| const Register value = locs()->in(0).reg(); |
| const XmmRegister result = locs()->out(0).fpu_reg(); |
| |
| if (value_cid == kDoubleCid) { |
| __ movsd(result, FieldAddress(value, Double::value_offset())); |
| } else if (value_cid == kSmiCid) { |
| __ SmiUntag(value); // Untag input before conversion. |
| __ cvtsi2sd(result, value); |
| } else { |
| Label* deopt = compiler->AddDeoptStub(deopt_id_, |
| ICData::kDeoptBinaryDoubleOp); |
| if (value_type->is_nullable() && |
| (value_type->ToNullableCid() == kDoubleCid)) { |
| const Immediate& raw_null = |
| Immediate(reinterpret_cast<intptr_t>(Object::null())); |
| __ cmpq(value, raw_null); |
| __ j(EQUAL, deopt); |
| // It must be double now. |
| __ movsd(result, FieldAddress(value, Double::value_offset())); |
| } else { |
| Label is_smi, done; |
| __ testq(value, Immediate(kSmiTagMask)); |
| __ j(ZERO, &is_smi); |
| __ CompareClassId(value, kDoubleCid); |
| __ j(NOT_EQUAL, deopt); |
| __ movsd(result, FieldAddress(value, Double::value_offset())); |
| __ jmp(&done); |
| __ Bind(&is_smi); |
| __ SmiUntag(value); |
| __ cvtsi2sd(result, value); |
| __ Bind(&done); |
| } |
| } |
| } |
| |
| |
| LocationSummary* BoxFloat32x4Instr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 1; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, |
| kNumTemps, |
| LocationSummary::kCallOnSlowPath); |
| summary->set_in(0, Location::RequiresFpuRegister()); |
| summary->set_out(0, Location::RequiresRegister()); |
| return summary; |
| } |
| |
| |
| void BoxFloat32x4Instr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| BoxFloat32x4SlowPath* slow_path = new BoxFloat32x4SlowPath(this); |
| compiler->AddSlowPathCode(slow_path); |
| |
| Register out_reg = locs()->out(0).reg(); |
| XmmRegister value = locs()->in(0).fpu_reg(); |
| |
| __ TryAllocate(compiler->float32x4_class(), |
| slow_path->entry_label(), |
| Assembler::kFarJump, |
| out_reg, |
| PP); |
| __ Bind(slow_path->exit_label()); |
| __ movups(FieldAddress(out_reg, Float32x4::value_offset()), value); |
| } |
| |
| |
| LocationSummary* UnboxFloat32x4Instr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 1; |
| return LocationSummary::Make(isolate, |
| kNumInputs, |
| Location::RequiresFpuRegister(), |
| LocationSummary::kNoCall); |
| } |
| |
| |
| void UnboxFloat32x4Instr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| const intptr_t value_cid = value()->Type()->ToCid(); |
| const Register value = locs()->in(0).reg(); |
| const XmmRegister result = locs()->out(0).fpu_reg(); |
| |
| if (value_cid != kFloat32x4Cid) { |
| Label* deopt = compiler->AddDeoptStub(deopt_id_, ICData::kDeoptCheckClass); |
| __ testq(value, Immediate(kSmiTagMask)); |
| __ j(ZERO, deopt); |
| __ CompareClassId(value, kFloat32x4Cid); |
| __ j(NOT_EQUAL, deopt); |
| } |
| __ movups(result, FieldAddress(value, Float32x4::value_offset())); |
| } |
| |
| |
| LocationSummary* BoxFloat64x2Instr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 1; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, |
| kNumTemps, |
| LocationSummary::kCallOnSlowPath); |
| summary->set_in(0, Location::RequiresFpuRegister()); |
| summary->set_out(0, Location::RequiresRegister()); |
| return summary; |
| } |
| |
| |
| void BoxFloat64x2Instr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| BoxFloat64x2SlowPath* slow_path = new BoxFloat64x2SlowPath(this); |
| compiler->AddSlowPathCode(slow_path); |
| |
| Register out_reg = locs()->out(0).reg(); |
| XmmRegister value = locs()->in(0).fpu_reg(); |
| |
| __ TryAllocate(compiler->float64x2_class(), |
| slow_path->entry_label(), |
| Assembler::kFarJump, |
| out_reg, |
| kNoRegister); |
| __ Bind(slow_path->exit_label()); |
| __ movups(FieldAddress(out_reg, Float64x2::value_offset()), value); |
| } |
| |
| |
| LocationSummary* UnboxFloat64x2Instr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t value_cid = value()->Type()->ToCid(); |
| const intptr_t kNumInputs = 1; |
| const intptr_t kNumTemps = value_cid == kFloat64x2Cid ? 0 : 1; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RequiresRegister()); |
| summary->set_out(0, Location::RequiresFpuRegister()); |
| return summary; |
| } |
| |
| |
| void UnboxFloat64x2Instr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| const intptr_t value_cid = value()->Type()->ToCid(); |
| const Register value = locs()->in(0).reg(); |
| const XmmRegister result = locs()->out(0).fpu_reg(); |
| |
| if (value_cid != kFloat64x2Cid) { |
| Label* deopt = compiler->AddDeoptStub(deopt_id_, ICData::kDeoptCheckClass); |
| __ testq(value, Immediate(kSmiTagMask)); |
| __ j(ZERO, deopt); |
| __ CompareClassId(value, kFloat64x2Cid); |
| __ j(NOT_EQUAL, deopt); |
| } |
| __ movups(result, FieldAddress(value, Float64x2::value_offset())); |
| } |
| |
| |
| LocationSummary* BoxInt32x4Instr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 1; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, |
| kNumTemps, |
| LocationSummary::kCallOnSlowPath); |
| summary->set_in(0, Location::RequiresFpuRegister()); |
| summary->set_out(0, Location::RequiresRegister()); |
| return summary; |
| } |
| |
| |
| class BoxInt32x4SlowPath : public SlowPathCode { |
| public: |
| explicit BoxInt32x4SlowPath(BoxInt32x4Instr* instruction) |
| : instruction_(instruction) { } |
| |
| virtual void EmitNativeCode(FlowGraphCompiler* compiler) { |
| __ Comment("BoxInt32x4SlowPath"); |
| __ Bind(entry_label()); |
| const Class& int32x4_class = compiler->int32x4_class(); |
| const Code& stub = |
| Code::Handle(StubCode::GetAllocationStubForClass(int32x4_class)); |
| const ExternalLabel label(stub.EntryPoint()); |
| |
| LocationSummary* locs = instruction_->locs(); |
| locs->live_registers()->Remove(locs->out(0)); |
| |
| compiler->SaveLiveRegisters(locs); |
| compiler->GenerateCall(Scanner::kNoSourcePos, // No token position. |
| &label, |
| PcDescriptors::kOther, |
| locs); |
| __ MoveRegister(locs->out(0).reg(), RAX); |
| compiler->RestoreLiveRegisters(locs); |
| |
| __ jmp(exit_label()); |
| } |
| |
| private: |
| BoxInt32x4Instr* instruction_; |
| }; |
| |
| |
| void BoxInt32x4Instr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| BoxInt32x4SlowPath* slow_path = new BoxInt32x4SlowPath(this); |
| compiler->AddSlowPathCode(slow_path); |
| |
| Register out_reg = locs()->out(0).reg(); |
| XmmRegister value = locs()->in(0).fpu_reg(); |
| |
| __ TryAllocate(compiler->int32x4_class(), |
| slow_path->entry_label(), |
| Assembler::kFarJump, |
| out_reg, |
| PP); |
| __ Bind(slow_path->exit_label()); |
| __ movups(FieldAddress(out_reg, Int32x4::value_offset()), value); |
| } |
| |
| |
| LocationSummary* UnboxInt32x4Instr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 1; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RequiresRegister()); |
| summary->set_out(0, Location::RequiresFpuRegister()); |
| return summary; |
| } |
| |
| |
| void UnboxInt32x4Instr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| const intptr_t value_cid = value()->Type()->ToCid(); |
| const Register value = locs()->in(0).reg(); |
| const XmmRegister result = locs()->out(0).fpu_reg(); |
| |
| if (value_cid != kInt32x4Cid) { |
| Label* deopt = compiler->AddDeoptStub(deopt_id_, ICData::kDeoptCheckClass); |
| __ testq(value, Immediate(kSmiTagMask)); |
| __ j(ZERO, deopt); |
| __ CompareClassId(value, kInt32x4Cid); |
| __ j(NOT_EQUAL, deopt); |
| } |
| __ movups(result, FieldAddress(value, Int32x4::value_offset())); |
| } |
| |
| |
| LocationSummary* BinaryDoubleOpInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 2; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RequiresFpuRegister()); |
| summary->set_in(1, Location::RequiresFpuRegister()); |
| summary->set_out(0, Location::SameAsFirstInput()); |
| return summary; |
| } |
| |
| |
| void BinaryDoubleOpInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| XmmRegister left = locs()->in(0).fpu_reg(); |
| XmmRegister right = locs()->in(1).fpu_reg(); |
| |
| ASSERT(locs()->out(0).fpu_reg() == left); |
| |
| switch (op_kind()) { |
| case Token::kADD: __ addsd(left, right); break; |
| case Token::kSUB: __ subsd(left, right); break; |
| case Token::kMUL: __ mulsd(left, right); break; |
| case Token::kDIV: __ divsd(left, right); break; |
| default: UNREACHABLE(); |
| } |
| } |
| |
| |
| LocationSummary* BinaryFloat32x4OpInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 2; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RequiresFpuRegister()); |
| summary->set_in(1, Location::RequiresFpuRegister()); |
| summary->set_out(0, Location::SameAsFirstInput()); |
| return summary; |
| } |
| |
| |
| void BinaryFloat32x4OpInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| XmmRegister left = locs()->in(0).fpu_reg(); |
| XmmRegister right = locs()->in(1).fpu_reg(); |
| |
| ASSERT(locs()->out(0).fpu_reg() == left); |
| |
| switch (op_kind()) { |
| case Token::kADD: __ addps(left, right); break; |
| case Token::kSUB: __ subps(left, right); break; |
| case Token::kMUL: __ mulps(left, right); break; |
| case Token::kDIV: __ divps(left, right); break; |
| default: UNREACHABLE(); |
| } |
| } |
| |
| |
| LocationSummary* BinaryFloat64x2OpInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 2; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RequiresFpuRegister()); |
| summary->set_in(1, Location::RequiresFpuRegister()); |
| summary->set_out(0, Location::SameAsFirstInput()); |
| return summary; |
| } |
| |
| |
| void BinaryFloat64x2OpInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| XmmRegister left = locs()->in(0).fpu_reg(); |
| XmmRegister right = locs()->in(1).fpu_reg(); |
| |
| ASSERT(locs()->out(0).fpu_reg() == left); |
| |
| switch (op_kind()) { |
| case Token::kADD: __ addpd(left, right); break; |
| case Token::kSUB: __ subpd(left, right); break; |
| case Token::kMUL: __ mulpd(left, right); break; |
| case Token::kDIV: __ divpd(left, right); break; |
| default: UNREACHABLE(); |
| } |
| } |
| |
| |
| LocationSummary* Simd32x4ShuffleInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 1; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RequiresFpuRegister()); |
| summary->set_out(0, Location::SameAsFirstInput()); |
| return summary; |
| } |
| |
| |
| void Simd32x4ShuffleInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| XmmRegister value = locs()->in(0).fpu_reg(); |
| |
| ASSERT(locs()->out(0).fpu_reg() == value); |
| |
| switch (op_kind()) { |
| case MethodRecognizer::kFloat32x4ShuffleX: |
| // Shuffle not necessary. |
| __ cvtss2sd(value, value); |
| break; |
| case MethodRecognizer::kFloat32x4ShuffleY: |
| __ shufps(value, value, Immediate(0x55)); |
| __ cvtss2sd(value, value); |
| break; |
| case MethodRecognizer::kFloat32x4ShuffleZ: |
| __ shufps(value, value, Immediate(0xAA)); |
| __ cvtss2sd(value, value); |
| break; |
| case MethodRecognizer::kFloat32x4ShuffleW: |
| __ shufps(value, value, Immediate(0xFF)); |
| __ cvtss2sd(value, value); |
| break; |
| case MethodRecognizer::kFloat32x4Shuffle: |
| case MethodRecognizer::kInt32x4Shuffle: |
| __ shufps(value, value, Immediate(mask_)); |
| break; |
| default: UNREACHABLE(); |
| } |
| } |
| |
| |
| LocationSummary* Simd32x4ShuffleMixInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 2; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RequiresFpuRegister()); |
| summary->set_in(1, Location::RequiresFpuRegister()); |
| summary->set_out(0, Location::SameAsFirstInput()); |
| return summary; |
| } |
| |
| |
| void Simd32x4ShuffleMixInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| XmmRegister left = locs()->in(0).fpu_reg(); |
| XmmRegister right = locs()->in(1).fpu_reg(); |
| |
| ASSERT(locs()->out(0).fpu_reg() == left); |
| switch (op_kind()) { |
| case MethodRecognizer::kFloat32x4ShuffleMix: |
| case MethodRecognizer::kInt32x4ShuffleMix: |
| __ shufps(left, right, Immediate(mask_)); |
| break; |
| default: UNREACHABLE(); |
| } |
| } |
| |
| |
| LocationSummary* Simd32x4GetSignMaskInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 1; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RequiresFpuRegister()); |
| summary->set_out(0, Location::RequiresRegister()); |
| return summary; |
| } |
| |
| |
| void Simd32x4GetSignMaskInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| XmmRegister value = locs()->in(0).fpu_reg(); |
| Register out = locs()->out(0).reg(); |
| |
| __ movmskps(out, value); |
| __ SmiTag(out); |
| } |
| |
| |
| LocationSummary* Float32x4ConstructorInstr::MakeLocationSummary( |
| Isolate* isolate, bool opt) const { |
| const intptr_t kNumInputs = 4; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RequiresFpuRegister()); |
| summary->set_in(1, Location::RequiresFpuRegister()); |
| summary->set_in(2, Location::RequiresFpuRegister()); |
| summary->set_in(3, Location::RequiresFpuRegister()); |
| summary->set_out(0, Location::SameAsFirstInput()); |
| return summary; |
| } |
| |
| |
| void Float32x4ConstructorInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| XmmRegister v0 = locs()->in(0).fpu_reg(); |
| XmmRegister v1 = locs()->in(1).fpu_reg(); |
| XmmRegister v2 = locs()->in(2).fpu_reg(); |
| XmmRegister v3 = locs()->in(3).fpu_reg(); |
| ASSERT(v0 == locs()->out(0).fpu_reg()); |
| __ AddImmediate(RSP, Immediate(-16), PP); |
| __ cvtsd2ss(v0, v0); |
| __ movss(Address(RSP, 0), v0); |
| __ movsd(v0, v1); |
| __ cvtsd2ss(v0, v0); |
| __ movss(Address(RSP, 4), v0); |
| __ movsd(v0, v2); |
| __ cvtsd2ss(v0, v0); |
| __ movss(Address(RSP, 8), v0); |
| __ movsd(v0, v3); |
| __ cvtsd2ss(v0, v0); |
| __ movss(Address(RSP, 12), v0); |
| __ movups(v0, Address(RSP, 0)); |
| __ AddImmediate(RSP, Immediate(16), PP); |
| } |
| |
| |
| LocationSummary* Float32x4ZeroInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 0; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_out(0, Location::RequiresFpuRegister()); |
| return summary; |
| } |
| |
| |
| void Float32x4ZeroInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| XmmRegister value = locs()->out(0).fpu_reg(); |
| __ xorps(value, value); |
| } |
| |
| |
| LocationSummary* Float32x4SplatInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 1; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RequiresFpuRegister()); |
| summary->set_out(0, Location::SameAsFirstInput()); |
| return summary; |
| } |
| |
| |
| void Float32x4SplatInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| XmmRegister value = locs()->out(0).fpu_reg(); |
| ASSERT(locs()->in(0).fpu_reg() == locs()->out(0).fpu_reg()); |
| // Convert to Float32. |
| __ cvtsd2ss(value, value); |
| // Splat across all lanes. |
| __ shufps(value, value, Immediate(0x00)); |
| } |
| |
| |
| LocationSummary* Float32x4ComparisonInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 2; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RequiresFpuRegister()); |
| summary->set_in(1, Location::RequiresFpuRegister()); |
| summary->set_out(0, Location::SameAsFirstInput()); |
| return summary; |
| } |
| |
| |
| void Float32x4ComparisonInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| XmmRegister left = locs()->in(0).fpu_reg(); |
| XmmRegister right = locs()->in(1).fpu_reg(); |
| |
| ASSERT(locs()->out(0).fpu_reg() == left); |
| |
| switch (op_kind()) { |
| case MethodRecognizer::kFloat32x4Equal: |
| __ cmppseq(left, right); |
| break; |
| case MethodRecognizer::kFloat32x4NotEqual: |
| __ cmppsneq(left, right); |
| break; |
| case MethodRecognizer::kFloat32x4GreaterThan: |
| __ cmppsnle(left, right); |
| break; |
| case MethodRecognizer::kFloat32x4GreaterThanOrEqual: |
| __ cmppsnlt(left, right); |
| break; |
| case MethodRecognizer::kFloat32x4LessThan: |
| __ cmppslt(left, right); |
| break; |
| case MethodRecognizer::kFloat32x4LessThanOrEqual: |
| __ cmppsle(left, right); |
| break; |
| |
| default: UNREACHABLE(); |
| } |
| } |
| |
| |
| LocationSummary* Float32x4MinMaxInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 2; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RequiresFpuRegister()); |
| summary->set_in(1, Location::RequiresFpuRegister()); |
| summary->set_out(0, Location::SameAsFirstInput()); |
| return summary; |
| } |
| |
| |
| void Float32x4MinMaxInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| XmmRegister left = locs()->in(0).fpu_reg(); |
| XmmRegister right = locs()->in(1).fpu_reg(); |
| |
| ASSERT(locs()->out(0).fpu_reg() == left); |
| |
| switch (op_kind()) { |
| case MethodRecognizer::kFloat32x4Min: |
| __ minps(left, right); |
| break; |
| case MethodRecognizer::kFloat32x4Max: |
| __ maxps(left, right); |
| break; |
| default: UNREACHABLE(); |
| } |
| } |
| |
| |
| LocationSummary* Float32x4ScaleInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 2; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RequiresFpuRegister()); |
| summary->set_in(1, Location::RequiresFpuRegister()); |
| summary->set_out(0, Location::SameAsFirstInput()); |
| return summary; |
| } |
| |
| |
| void Float32x4ScaleInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| XmmRegister left = locs()->in(0).fpu_reg(); |
| XmmRegister right = locs()->in(1).fpu_reg(); |
| |
| ASSERT(locs()->out(0).fpu_reg() == left); |
| |
| switch (op_kind()) { |
| case MethodRecognizer::kFloat32x4Scale: |
| __ cvtsd2ss(left, left); |
| __ shufps(left, left, Immediate(0x00)); |
| __ mulps(left, right); |
| break; |
| default: UNREACHABLE(); |
| } |
| } |
| |
| |
| LocationSummary* Float32x4SqrtInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 1; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RequiresFpuRegister()); |
| summary->set_out(0, Location::SameAsFirstInput()); |
| return summary; |
| } |
| |
| |
| void Float32x4SqrtInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| XmmRegister left = locs()->in(0).fpu_reg(); |
| |
| ASSERT(locs()->out(0).fpu_reg() == left); |
| |
| switch (op_kind()) { |
| case MethodRecognizer::kFloat32x4Sqrt: |
| __ sqrtps(left); |
| break; |
| case MethodRecognizer::kFloat32x4Reciprocal: |
| __ reciprocalps(left); |
| break; |
| case MethodRecognizer::kFloat32x4ReciprocalSqrt: |
| __ rsqrtps(left); |
| break; |
| default: UNREACHABLE(); |
| } |
| } |
| |
| |
| LocationSummary* Float32x4ZeroArgInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 1; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RequiresFpuRegister()); |
| summary->set_out(0, Location::SameAsFirstInput()); |
| return summary; |
| } |
| |
| |
| void Float32x4ZeroArgInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| XmmRegister left = locs()->in(0).fpu_reg(); |
| |
| ASSERT(locs()->out(0).fpu_reg() == left); |
| switch (op_kind()) { |
| case MethodRecognizer::kFloat32x4Negate: |
| __ negateps(left); |
| break; |
| case MethodRecognizer::kFloat32x4Absolute: |
| __ absps(left); |
| break; |
| default: UNREACHABLE(); |
| } |
| } |
| |
| |
| LocationSummary* Float32x4ClampInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 3; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RequiresFpuRegister()); |
| summary->set_in(1, Location::RequiresFpuRegister()); |
| summary->set_in(2, Location::RequiresFpuRegister()); |
| summary->set_out(0, Location::SameAsFirstInput()); |
| return summary; |
| } |
| |
| |
| void Float32x4ClampInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| XmmRegister left = locs()->in(0).fpu_reg(); |
| XmmRegister lower = locs()->in(1).fpu_reg(); |
| XmmRegister upper = locs()->in(2).fpu_reg(); |
| ASSERT(locs()->out(0).fpu_reg() == left); |
| __ minps(left, upper); |
| __ maxps(left, lower); |
| } |
| |
| |
| LocationSummary* Float32x4WithInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 2; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RequiresFpuRegister()); |
| summary->set_in(1, Location::RequiresFpuRegister()); |
| summary->set_out(0, Location::SameAsFirstInput()); |
| return summary; |
| } |
| |
| |
| void Float32x4WithInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| XmmRegister replacement = locs()->in(0).fpu_reg(); |
| XmmRegister value = locs()->in(1).fpu_reg(); |
| |
| ASSERT(locs()->out(0).fpu_reg() == replacement); |
| |
| switch (op_kind()) { |
| case MethodRecognizer::kFloat32x4WithX: |
| __ cvtsd2ss(replacement, replacement); |
| __ AddImmediate(RSP, Immediate(-16), PP); |
| // Move value to stack. |
| __ movups(Address(RSP, 0), value); |
| // Write over X value. |
| __ movss(Address(RSP, 0), replacement); |
| // Move updated value into output register. |
| __ movups(replacement, Address(RSP, 0)); |
| __ AddImmediate(RSP, Immediate(16), PP); |
| break; |
| case MethodRecognizer::kFloat32x4WithY: |
| __ cvtsd2ss(replacement, replacement); |
| __ AddImmediate(RSP, Immediate(-16), PP); |
| // Move value to stack. |
| __ movups(Address(RSP, 0), value); |
| // Write over Y value. |
| __ movss(Address(RSP, 4), replacement); |
| // Move updated value into output register. |
| __ movups(replacement, Address(RSP, 0)); |
| __ AddImmediate(RSP, Immediate(16), PP); |
| break; |
| case MethodRecognizer::kFloat32x4WithZ: |
| __ cvtsd2ss(replacement, replacement); |
| __ AddImmediate(RSP, Immediate(-16), PP); |
| // Move value to stack. |
| __ movups(Address(RSP, 0), value); |
| // Write over Z value. |
| __ movss(Address(RSP, 8), replacement); |
| // Move updated value into output register. |
| __ movups(replacement, Address(RSP, 0)); |
| __ AddImmediate(RSP, Immediate(16), PP); |
| break; |
| case MethodRecognizer::kFloat32x4WithW: |
| __ cvtsd2ss(replacement, replacement); |
| __ AddImmediate(RSP, Immediate(-16), PP); |
| // Move value to stack. |
| __ movups(Address(RSP, 0), value); |
| // Write over W value. |
| __ movss(Address(RSP, 12), replacement); |
| // Move updated value into output register. |
| __ movups(replacement, Address(RSP, 0)); |
| __ AddImmediate(RSP, Immediate(16), PP); |
| break; |
| default: UNREACHABLE(); |
| } |
| } |
| |
| |
| LocationSummary* Float32x4ToInt32x4Instr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 1; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RequiresFpuRegister()); |
| summary->set_out(0, Location::SameAsFirstInput()); |
| return summary; |
| } |
| |
| |
| void Float32x4ToInt32x4Instr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| // NOP. |
| } |
| |
| |
| LocationSummary* Simd64x2ShuffleInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 1; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RequiresFpuRegister()); |
| summary->set_out(0, Location::SameAsFirstInput()); |
| return summary; |
| } |
| |
| |
| void Simd64x2ShuffleInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| XmmRegister value = locs()->in(0).fpu_reg(); |
| |
| ASSERT(locs()->out(0).fpu_reg() == value); |
| switch (op_kind()) { |
| case MethodRecognizer::kFloat64x2GetX: |
| // nop. |
| break; |
| case MethodRecognizer::kFloat64x2GetY: |
| __ shufpd(value, value, Immediate(0x33)); |
| break; |
| default: UNREACHABLE(); |
| } |
| } |
| |
| |
| LocationSummary* Float64x2ZeroInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 0; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_out(0, Location::RequiresFpuRegister()); |
| return summary; |
| } |
| |
| |
| void Float64x2ZeroInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| XmmRegister value = locs()->out(0).fpu_reg(); |
| __ xorpd(value, value); |
| } |
| |
| |
| LocationSummary* Float64x2SplatInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 1; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RequiresFpuRegister()); |
| summary->set_out(0, Location::SameAsFirstInput()); |
| return summary; |
| } |
| |
| |
| void Float64x2SplatInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| XmmRegister value = locs()->out(0).fpu_reg(); |
| __ shufpd(value, value, Immediate(0x0)); |
| } |
| |
| |
| LocationSummary* Float64x2ConstructorInstr::MakeLocationSummary( |
| Isolate* isolate, bool opt) const { |
| const intptr_t kNumInputs = 2; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RequiresFpuRegister()); |
| summary->set_in(1, Location::RequiresFpuRegister()); |
| summary->set_out(0, Location::SameAsFirstInput()); |
| return summary; |
| } |
| |
| |
| void Float64x2ConstructorInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| XmmRegister v0 = locs()->in(0).fpu_reg(); |
| XmmRegister v1 = locs()->in(1).fpu_reg(); |
| ASSERT(v0 == locs()->out(0).fpu_reg()); |
| __ AddImmediate(RSP, Immediate(-16), PP); |
| __ movsd(Address(RSP, 0), v0); |
| __ movsd(Address(RSP, 8), v1); |
| __ movups(v0, Address(RSP, 0)); |
| __ AddImmediate(RSP, Immediate(16), PP); |
| } |
| |
| |
| LocationSummary* Float64x2ToFloat32x4Instr::MakeLocationSummary( |
| Isolate* isolate, bool opt) const { |
| const intptr_t kNumInputs = 1; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RequiresFpuRegister()); |
| summary->set_out(0, Location::SameAsFirstInput()); |
| return summary; |
| } |
| |
| |
| void Float64x2ToFloat32x4Instr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| XmmRegister value = locs()->out(0).fpu_reg(); |
| __ cvtpd2ps(value, value); |
| } |
| |
| |
| LocationSummary* Float32x4ToFloat64x2Instr::MakeLocationSummary( |
| Isolate* isolate, bool opt) const { |
| const intptr_t kNumInputs = 1; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RequiresFpuRegister()); |
| summary->set_out(0, Location::SameAsFirstInput()); |
| return summary; |
| } |
| |
| |
| void Float32x4ToFloat64x2Instr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| XmmRegister value = locs()->out(0).fpu_reg(); |
| __ cvtps2pd(value, value); |
| } |
| |
| |
| LocationSummary* Float64x2ZeroArgInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 1; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RequiresFpuRegister()); |
| if (representation() == kTagged) { |
| ASSERT(op_kind() == MethodRecognizer::kFloat64x2GetSignMask); |
| summary->set_out(0, Location::RequiresRegister()); |
| } else { |
| ASSERT(representation() == kUnboxedFloat64x2); |
| summary->set_out(0, Location::SameAsFirstInput()); |
| } |
| return summary; |
| } |
| |
| |
| void Float64x2ZeroArgInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| XmmRegister left = locs()->in(0).fpu_reg(); |
| |
| ASSERT((op_kind() == MethodRecognizer::kFloat64x2GetSignMask) || |
| (locs()->out(0).fpu_reg() == left)); |
| |
| switch (op_kind()) { |
| case MethodRecognizer::kFloat64x2Negate: |
| __ negatepd(left); |
| break; |
| case MethodRecognizer::kFloat64x2Abs: |
| __ abspd(left); |
| break; |
| case MethodRecognizer::kFloat64x2Sqrt: |
| __ sqrtpd(left); |
| break; |
| case MethodRecognizer::kFloat64x2GetSignMask: |
| __ movmskpd(locs()->out(0).reg(), left); |
| __ SmiTag(locs()->out(0).reg()); |
| break; |
| default: UNREACHABLE(); |
| } |
| } |
| |
| |
| LocationSummary* Float64x2OneArgInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 2; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RequiresFpuRegister()); |
| summary->set_in(1, Location::RequiresFpuRegister()); |
| summary->set_out(0, Location::SameAsFirstInput()); |
| return summary; |
| } |
| |
| |
| void Float64x2OneArgInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| XmmRegister left = locs()->in(0).fpu_reg(); |
| XmmRegister right = locs()->in(1).fpu_reg(); |
| ASSERT((locs()->out(0).fpu_reg() == left)); |
| |
| switch (op_kind()) { |
| case MethodRecognizer::kFloat64x2Scale: |
| __ shufpd(right, right, Immediate(0x00)); |
| __ mulpd(left, right); |
| break; |
| case MethodRecognizer::kFloat64x2WithX: |
| __ subq(RSP, Immediate(16)); |
| // Move value to stack. |
| __ movups(Address(RSP, 0), left); |
| // Write over X value. |
| __ movsd(Address(RSP, 0), right); |
| // Move updated value into output register. |
| __ movups(left, Address(RSP, 0)); |
| __ addq(RSP, Immediate(16)); |
| break; |
| case MethodRecognizer::kFloat64x2WithY: |
| __ subq(RSP, Immediate(16)); |
| // Move value to stack. |
| __ movups(Address(RSP, 0), left); |
| // Write over Y value. |
| __ movsd(Address(RSP, 8), right); |
| // Move updated value into output register. |
| __ movups(left, Address(RSP, 0)); |
| __ addq(RSP, Immediate(16)); |
| break; |
| case MethodRecognizer::kFloat64x2Min: |
| __ minpd(left, right); |
| break; |
| case MethodRecognizer::kFloat64x2Max: |
| __ maxpd(left, right); |
| break; |
| default: UNREACHABLE(); |
| } |
| } |
| |
| |
| LocationSummary* Int32x4BoolConstructorInstr::MakeLocationSummary( |
| Isolate* isolate, bool opt) const { |
| const intptr_t kNumInputs = 4; |
| const intptr_t kNumTemps = 1; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RequiresRegister()); |
| summary->set_in(1, Location::RequiresRegister()); |
| summary->set_in(2, Location::RequiresRegister()); |
| summary->set_in(3, Location::RequiresRegister()); |
| summary->set_temp(0, Location::RequiresRegister()); |
| summary->set_out(0, Location::RequiresFpuRegister()); |
| return summary; |
| } |
| |
| |
| void Int32x4BoolConstructorInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| Register v0 = locs()->in(0).reg(); |
| Register v1 = locs()->in(1).reg(); |
| Register v2 = locs()->in(2).reg(); |
| Register v3 = locs()->in(3).reg(); |
| Register temp = locs()->temp(0).reg(); |
| XmmRegister result = locs()->out(0).fpu_reg(); |
| Label x_false, x_done; |
| Label y_false, y_done; |
| Label z_false, z_done; |
| Label w_false, w_done; |
| __ AddImmediate(RSP, Immediate(-16), PP); |
| |
| __ CompareObject(v0, Bool::True(), PP); |
| __ j(NOT_EQUAL, &x_false); |
| __ LoadImmediate(temp, Immediate(0xFFFFFFFF), PP); |
| __ jmp(&x_done); |
| __ Bind(&x_false); |
| __ LoadImmediate(temp, Immediate(0x0), PP); |
| __ Bind(&x_done); |
| __ movl(Address(RSP, 0), temp); |
| |
| __ CompareObject(v1, Bool::True(), PP); |
| __ j(NOT_EQUAL, &y_false); |
| __ LoadImmediate(temp, Immediate(0xFFFFFFFF), PP); |
| __ jmp(&y_done); |
| __ Bind(&y_false); |
| __ LoadImmediate(temp, Immediate(0x0), PP); |
| __ Bind(&y_done); |
| __ movl(Address(RSP, 4), temp); |
| |
| __ CompareObject(v2, Bool::True(), PP); |
| __ j(NOT_EQUAL, &z_false); |
| __ LoadImmediate(temp, Immediate(0xFFFFFFFF), PP); |
| __ jmp(&z_done); |
| __ Bind(&z_false); |
| __ LoadImmediate(temp, Immediate(0x0), PP); |
| __ Bind(&z_done); |
| __ movl(Address(RSP, 8), temp); |
| |
| __ CompareObject(v3, Bool::True(), PP); |
| __ j(NOT_EQUAL, &w_false); |
| __ LoadImmediate(temp, Immediate(0xFFFFFFFF), PP); |
| __ jmp(&w_done); |
| __ Bind(&w_false); |
| __ LoadImmediate(temp, Immediate(0x0), PP); |
| __ Bind(&w_done); |
| __ movl(Address(RSP, 12), temp); |
| |
| __ movups(result, Address(RSP, 0)); |
| __ AddImmediate(RSP, Immediate(16), PP); |
| } |
| |
| |
| LocationSummary* Int32x4GetFlagInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 1; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RequiresFpuRegister()); |
| summary->set_out(0, Location::RequiresRegister()); |
| return summary; |
| } |
| |
| |
| void Int32x4GetFlagInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| XmmRegister value = locs()->in(0).fpu_reg(); |
| Register result = locs()->out(0).reg(); |
| Label done; |
| Label non_zero; |
| __ AddImmediate(RSP, Immediate(-16), PP); |
| // Move value to stack. |
| __ movups(Address(RSP, 0), value); |
| switch (op_kind()) { |
| case MethodRecognizer::kInt32x4GetFlagX: |
| __ movl(result, Address(RSP, 0)); |
| break; |
| case MethodRecognizer::kInt32x4GetFlagY: |
| __ movl(result, Address(RSP, 4)); |
| break; |
| case MethodRecognizer::kInt32x4GetFlagZ: |
| __ movl(result, Address(RSP, 8)); |
| break; |
| case MethodRecognizer::kInt32x4GetFlagW: |
| __ movl(result, Address(RSP, 12)); |
| break; |
| default: UNREACHABLE(); |
| } |
| __ AddImmediate(RSP, Immediate(16), PP); |
| __ testl(result, result); |
| __ j(NOT_ZERO, &non_zero, Assembler::kNearJump); |
| __ LoadObject(result, Bool::False(), PP); |
| __ jmp(&done); |
| __ Bind(&non_zero); |
| __ LoadObject(result, Bool::True(), PP); |
| __ Bind(&done); |
| } |
| |
| |
| LocationSummary* Int32x4SelectInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 3; |
| const intptr_t kNumTemps = 1; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RequiresFpuRegister()); |
| summary->set_in(1, Location::RequiresFpuRegister()); |
| summary->set_in(2, Location::RequiresFpuRegister()); |
| summary->set_temp(0, Location::RequiresFpuRegister()); |
| summary->set_out(0, Location::SameAsFirstInput()); |
| return summary; |
| } |
| |
| |
| void Int32x4SelectInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| XmmRegister mask = locs()->in(0).fpu_reg(); |
| XmmRegister trueValue = locs()->in(1).fpu_reg(); |
| XmmRegister falseValue = locs()->in(2).fpu_reg(); |
| XmmRegister out = locs()->out(0).fpu_reg(); |
| XmmRegister temp = locs()->temp(0).fpu_reg(); |
| ASSERT(out == mask); |
| // Copy mask. |
| __ movaps(temp, mask); |
| // Invert it. |
| __ notps(temp); |
| // mask = mask & trueValue. |
| __ andps(mask, trueValue); |
| // temp = temp & falseValue. |
| __ andps(temp, falseValue); |
| // out = mask | temp. |
| __ orps(mask, temp); |
| } |
| |
| |
| LocationSummary* Int32x4SetFlagInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 2; |
| const intptr_t kNumTemps = 1; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RequiresFpuRegister()); |
| summary->set_in(1, Location::RequiresRegister()); |
| summary->set_temp(0, Location::RequiresRegister()); |
| summary->set_out(0, Location::SameAsFirstInput()); |
| return summary; |
| } |
| |
| |
| void Int32x4SetFlagInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| XmmRegister mask = locs()->in(0).fpu_reg(); |
| Register flag = locs()->in(1).reg(); |
| Register temp = locs()->temp(0).reg(); |
| ASSERT(mask == locs()->out(0).fpu_reg()); |
| __ AddImmediate(RSP, Immediate(-16), PP); |
| // Copy mask to stack. |
| __ movups(Address(RSP, 0), mask); |
| Label falsePath, exitPath; |
| __ CompareObject(flag, Bool::True(), PP); |
| __ j(NOT_EQUAL, &falsePath); |
| switch (op_kind()) { |
| case MethodRecognizer::kInt32x4WithFlagX: |
| __ LoadImmediate(temp, Immediate(0xFFFFFFFF), PP); |
| __ movl(Address(RSP, 0), temp); |
| __ jmp(&exitPath); |
| __ Bind(&falsePath); |
| __ LoadImmediate(temp, Immediate(0x0), PP); |
| __ movl(Address(RSP, 0), temp); |
| break; |
| case MethodRecognizer::kInt32x4WithFlagY: |
| __ LoadImmediate(temp, Immediate(0xFFFFFFFF), PP); |
| __ movl(Address(RSP, 4), temp); |
| __ jmp(&exitPath); |
| __ Bind(&falsePath); |
| __ LoadImmediate(temp, Immediate(0x0), PP); |
| __ movl(Address(RSP, 4), temp); |
| break; |
| case MethodRecognizer::kInt32x4WithFlagZ: |
| __ LoadImmediate(temp, Immediate(0xFFFFFFFF), PP); |
| __ movl(Address(RSP, 8), temp); |
| __ jmp(&exitPath); |
| __ Bind(&falsePath); |
| __ LoadImmediate(temp, Immediate(0x0), PP); |
| __ movl(Address(RSP, 8), temp); |
| break; |
| case MethodRecognizer::kInt32x4WithFlagW: |
| __ LoadImmediate(temp, Immediate(0xFFFFFFFF), PP); |
| __ movl(Address(RSP, 12), temp); |
| __ jmp(&exitPath); |
| __ Bind(&falsePath); |
| __ LoadImmediate(temp, Immediate(0x0), PP); |
| __ movl(Address(RSP, 12), temp); |
| break; |
| default: UNREACHABLE(); |
| } |
| __ Bind(&exitPath); |
| // Copy mask back to register. |
| __ movups(mask, Address(RSP, 0)); |
| __ AddImmediate(RSP, Immediate(16), PP); |
| } |
| |
| |
| LocationSummary* Int32x4ToFloat32x4Instr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 1; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RequiresFpuRegister()); |
| summary->set_out(0, Location::SameAsFirstInput()); |
| return summary; |
| } |
| |
| |
| void Int32x4ToFloat32x4Instr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| // NOP. |
| } |
| |
| |
| LocationSummary* BinaryInt32x4OpInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 2; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RequiresFpuRegister()); |
| summary->set_in(1, Location::RequiresFpuRegister()); |
| summary->set_out(0, Location::SameAsFirstInput()); |
| return summary; |
| } |
| |
| |
| void BinaryInt32x4OpInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| XmmRegister left = locs()->in(0).fpu_reg(); |
| XmmRegister right = locs()->in(1).fpu_reg(); |
| ASSERT(left == locs()->out(0).fpu_reg()); |
| switch (op_kind()) { |
| case Token::kBIT_AND: { |
| __ andps(left, right); |
| break; |
| } |
| case Token::kBIT_OR: { |
| __ orps(left, right); |
| break; |
| } |
| case Token::kBIT_XOR: { |
| __ xorps(left, right); |
| break; |
| } |
| case Token::kADD: |
| __ addpl(left, right); |
| break; |
| case Token::kSUB: |
| __ subpl(left, right); |
| break; |
| default: UNREACHABLE(); |
| } |
| } |
| |
| |
| LocationSummary* MathUnaryInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| if ((kind() == MathUnaryInstr::kSin) || (kind() == MathUnaryInstr::kCos)) { |
| // Calling convention on x64 uses XMM0 and XMM1 to pass the first two |
| // double arguments and XMM0 to return the result. Unfortunately |
| // currently we can't specify these registers because ParallelMoveResolver |
| // assumes that XMM0 is free at all times. |
| // TODO(vegorov): allow XMM0 to be used. |
| const intptr_t kNumTemps = 1; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, InputCount(), kNumTemps, LocationSummary::kCall); |
| summary->set_in(0, Location::FpuRegisterLocation(XMM1)); |
| // R13 is chosen because it is callee saved so we do not need to back it |
| // up before calling into the runtime. |
| summary->set_temp(0, Location::RegisterLocation(R13)); |
| summary->set_out(0, Location::FpuRegisterLocation(XMM1)); |
| return summary; |
| } |
| ASSERT((kind() == MathUnaryInstr::kSqrt) || |
| (kind() == MathUnaryInstr::kDoubleSquare)); |
| const intptr_t kNumInputs = 1; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RequiresFpuRegister()); |
| if (kind() == MathUnaryInstr::kDoubleSquare) { |
| summary->set_out(0, Location::SameAsFirstInput()); |
| } else { |
| summary->set_out(0, Location::RequiresFpuRegister()); |
| } |
| return summary; |
| } |
| |
| |
| void MathUnaryInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| if (kind() == MathUnaryInstr::kSqrt) { |
| __ sqrtsd(locs()->out(0).fpu_reg(), locs()->in(0).fpu_reg()); |
| } else if (kind() == MathUnaryInstr::kDoubleSquare) { |
| XmmRegister value_reg = locs()->in(0).fpu_reg(); |
| __ mulsd(value_reg, value_reg); |
| ASSERT(value_reg == locs()->out(0).fpu_reg()); |
| } else { |
| ASSERT((kind() == MathUnaryInstr::kSin) || |
| (kind() == MathUnaryInstr::kCos)); |
| // Save RSP. |
| __ movq(locs()->temp(0).reg(), RSP); |
| __ ReserveAlignedFrameSpace(0); |
| __ movaps(XMM0, locs()->in(0).fpu_reg()); |
| __ CallRuntime(TargetFunction(), InputCount()); |
| __ movaps(locs()->out(0).fpu_reg(), XMM0); |
| // Restore RSP. |
| __ movq(RSP, locs()->temp(0).reg()); |
| } |
| } |
| |
| |
| LocationSummary* UnarySmiOpInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 1; |
| return LocationSummary::Make(isolate, |
| kNumInputs, |
| Location::SameAsFirstInput(), |
| LocationSummary::kNoCall); |
| } |
| |
| |
| void UnarySmiOpInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| Register value = locs()->in(0).reg(); |
| ASSERT(value == locs()->out(0).reg()); |
| switch (op_kind()) { |
| case Token::kNEGATE: { |
| Label* deopt = compiler->AddDeoptStub(deopt_id(), ICData::kDeoptUnaryOp); |
| __ negq(value); |
| __ j(OVERFLOW, deopt); |
| if (FLAG_throw_on_javascript_int_overflow) { |
| EmitJavascriptOverflowCheck(compiler, range(), deopt, value); |
| } |
| break; |
| } |
| case Token::kBIT_NOT: |
| __ notq(value); |
| // Remove inverted smi-tag. |
| __ AndImmediate(value, Immediate(~kSmiTagMask), PP); |
| break; |
| default: |
| UNREACHABLE(); |
| } |
| } |
| |
| |
| LocationSummary* UnaryDoubleOpInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 1; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RequiresFpuRegister()); |
| summary->set_out(0, Location::SameAsFirstInput()); |
| return summary; |
| } |
| |
| |
| void UnaryDoubleOpInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| XmmRegister value = locs()->in(0).fpu_reg(); |
| ASSERT(locs()->out(0).fpu_reg() == value); |
| __ DoubleNegate(value); |
| } |
| |
| |
| LocationSummary* MathMinMaxInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| if (result_cid() == kDoubleCid) { |
| const intptr_t kNumInputs = 2; |
| const intptr_t kNumTemps = 1; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RequiresFpuRegister()); |
| summary->set_in(1, Location::RequiresFpuRegister()); |
| // Reuse the left register so that code can be made shorter. |
| summary->set_out(0, Location::SameAsFirstInput()); |
| summary->set_temp(0, Location::RequiresRegister()); |
| return summary; |
| } |
| ASSERT(result_cid() == kSmiCid); |
| const intptr_t kNumInputs = 2; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RequiresRegister()); |
| summary->set_in(1, Location::RequiresRegister()); |
| // Reuse the left register so that code can be made shorter. |
| summary->set_out(0, Location::SameAsFirstInput()); |
| return summary; |
| } |
| |
| |
| void MathMinMaxInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| ASSERT((op_kind() == MethodRecognizer::kMathMin) || |
| (op_kind() == MethodRecognizer::kMathMax)); |
| const intptr_t is_min = (op_kind() == MethodRecognizer::kMathMin); |
| if (result_cid() == kDoubleCid) { |
| Label done, returns_nan, are_equal; |
| XmmRegister left = locs()->in(0).fpu_reg(); |
| XmmRegister right = locs()->in(1).fpu_reg(); |
| XmmRegister result = locs()->out(0).fpu_reg(); |
| Register temp = locs()->temp(0).reg(); |
| __ comisd(left, right); |
| __ j(PARITY_EVEN, &returns_nan, Assembler::kNearJump); |
| __ j(EQUAL, &are_equal, Assembler::kNearJump); |
| const Condition double_condition = |
| is_min ? TokenKindToDoubleCondition(Token::kLT) |
| : TokenKindToDoubleCondition(Token::kGT); |
| ASSERT(left == result); |
| __ j(double_condition, &done, Assembler::kNearJump); |
| __ movsd(result, right); |
| __ jmp(&done, Assembler::kNearJump); |
| |
| __ Bind(&returns_nan); |
| static double kNaN = NAN; |
| __ LoadImmediate(temp, Immediate(reinterpret_cast<intptr_t>(&kNaN)), PP); |
| __ movsd(result, Address(temp, 0)); |
| __ jmp(&done, Assembler::kNearJump); |
| |
| __ Bind(&are_equal); |
| Label left_is_negative; |
| // Check for negative zero: -0.0 is equal 0.0 but min or max must return |
| // -0.0 or 0.0 respectively. |
| // Check for negative left value (get the sign bit): |
| // - min -> left is negative ? left : right. |
| // - max -> left is negative ? right : left |
| // Check the sign bit. |
| __ movmskpd(temp, left); |
| __ testq(temp, Immediate(1)); |
| if (is_min) { |
| ASSERT(left == result); |
| __ j(NOT_ZERO, &done, Assembler::kNearJump); // Negative -> return left. |
| } else { |
| ASSERT(left == result); |
| __ j(ZERO, &done, Assembler::kNearJump); // Positive -> return left. |
| } |
| __ movsd(result, right); |
| __ Bind(&done); |
| return; |
| } |
| |
| ASSERT(result_cid() == kSmiCid); |
| Register left = locs()->in(0).reg(); |
| Register right = locs()->in(1).reg(); |
| Register result = locs()->out(0).reg(); |
| __ cmpq(left, right); |
| ASSERT(result == left); |
| if (is_min) { |
| __ cmovgeq(result, right); |
| } else { |
| __ cmovlessq(result, right); |
| } |
| } |
| |
| |
| LocationSummary* SmiToDoubleInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 1; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* result = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| result->set_in(0, Location::WritableRegister()); |
| result->set_out(0, Location::RequiresFpuRegister()); |
| return result; |
| } |
| |
| |
| void SmiToDoubleInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| Register value = locs()->in(0).reg(); |
| FpuRegister result = locs()->out(0).fpu_reg(); |
| __ SmiUntag(value); |
| __ cvtsi2sd(result, value); |
| } |
| |
| |
| LocationSummary* DoubleToIntegerInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 1; |
| const intptr_t kNumTemps = 1; |
| LocationSummary* result = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kCall); |
| result->set_in(0, Location::RegisterLocation(RCX)); |
| result->set_out(0, Location::RegisterLocation(RAX)); |
| result->set_temp(0, Location::RegisterLocation(RBX)); |
| return result; |
| } |
| |
| |
| void DoubleToIntegerInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| Register result = locs()->out(0).reg(); |
| Register value_obj = locs()->in(0).reg(); |
| Register temp = locs()->temp(0).reg(); |
| XmmRegister value_double = XMM0; |
| ASSERT(result == RAX); |
| ASSERT(result != value_obj); |
| ASSERT(result != temp); |
| __ movsd(value_double, FieldAddress(value_obj, Double::value_offset())); |
| __ cvttsd2siq(result, value_double); |
| // Overflow is signalled with minint. |
| Label do_call, done; |
| // Check for overflow and that it fits into Smi. |
| __ movq(temp, result); |
| __ shlq(temp, Immediate(1)); |
| __ j(OVERFLOW, &do_call, Assembler::kNearJump); |
| __ SmiTag(result); |
| if (FLAG_throw_on_javascript_int_overflow) { |
| EmitJavascriptOverflowCheck(compiler, range(), &do_call, result); |
| } |
| __ jmp(&done); |
| __ Bind(&do_call); |
| ASSERT(instance_call()->HasICData()); |
| const ICData& ic_data = *instance_call()->ic_data(); |
| ASSERT((ic_data.NumberOfChecks() == 1)); |
| const Function& target = Function::ZoneHandle(ic_data.GetTargetAt(0)); |
| |
| const intptr_t kNumberOfArguments = 1; |
| __ pushq(value_obj); |
| compiler->GenerateStaticCall(deopt_id(), |
| instance_call()->token_pos(), |
| target, |
| kNumberOfArguments, |
| Object::null_array(), // No argument names. |
| locs(), |
| ICData::Handle()); |
| __ Bind(&done); |
| } |
| |
| |
| LocationSummary* DoubleToSmiInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 1; |
| const intptr_t kNumTemps = 1; |
| LocationSummary* result = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| result->set_in(0, Location::RequiresFpuRegister()); |
| result->set_out(0, Location::RequiresRegister()); |
| result->set_temp(0, Location::RequiresRegister()); |
| return result; |
| } |
| |
| |
| void DoubleToSmiInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| Label* deopt = compiler->AddDeoptStub(deopt_id(), ICData::kDeoptDoubleToSmi); |
| Register result = locs()->out(0).reg(); |
| XmmRegister value = locs()->in(0).fpu_reg(); |
| Register temp = locs()->temp(0).reg(); |
| |
| __ cvttsd2siq(result, value); |
| // Overflow is signalled with minint. |
| Label do_call, done; |
| // Check for overflow and that it fits into Smi. |
| __ movq(temp, result); |
| __ shlq(temp, Immediate(1)); |
| __ j(OVERFLOW, deopt); |
| __ SmiTag(result); |
| if (FLAG_throw_on_javascript_int_overflow) { |
| EmitJavascriptOverflowCheck(compiler, range(), deopt, result); |
| } |
| } |
| |
| |
| LocationSummary* DoubleToDoubleInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 1; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* result = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| result->set_in(0, Location::RequiresFpuRegister()); |
| result->set_out(0, Location::RequiresFpuRegister()); |
| return result; |
| } |
| |
| |
| void DoubleToDoubleInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| XmmRegister value = locs()->in(0).fpu_reg(); |
| XmmRegister result = locs()->out(0).fpu_reg(); |
| switch (recognized_kind()) { |
| case MethodRecognizer::kDoubleTruncate: |
| __ roundsd(result, value, Assembler::kRoundToZero); |
| break; |
| case MethodRecognizer::kDoubleFloor: |
| __ roundsd(result, value, Assembler::kRoundDown); |
| break; |
| case MethodRecognizer::kDoubleCeil: |
| __ roundsd(result, value, Assembler::kRoundUp); |
| break; |
| default: |
| UNREACHABLE(); |
| } |
| } |
| |
| |
| LocationSummary* DoubleToFloatInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 1; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* result = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| result->set_in(0, Location::RequiresFpuRegister()); |
| result->set_out(0, Location::SameAsFirstInput()); |
| return result; |
| } |
| |
| |
| void DoubleToFloatInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| __ cvtsd2ss(locs()->out(0).fpu_reg(), locs()->in(0).fpu_reg()); |
| } |
| |
| |
| LocationSummary* FloatToDoubleInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 1; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* result = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| result->set_in(0, Location::RequiresFpuRegister()); |
| result->set_out(0, Location::SameAsFirstInput()); |
| return result; |
| } |
| |
| |
| void FloatToDoubleInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| __ cvtss2sd(locs()->out(0).fpu_reg(), locs()->in(0).fpu_reg()); |
| } |
| |
| |
| LocationSummary* InvokeMathCFunctionInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| // Calling convention on x64 uses XMM0 and XMM1 to pass the first two |
| // double arguments and XMM0 to return the result. Unfortunately |
| // currently we can't specify these registers because ParallelMoveResolver |
| // assumes that XMM0 is free at all times. |
| // TODO(vegorov): allow XMM0 to be used. |
| ASSERT((InputCount() == 1) || (InputCount() == 2)); |
| const intptr_t kNumTemps = |
| (recognized_kind() == MethodRecognizer::kMathDoublePow) ? 3 : 1; |
| LocationSummary* result = new(isolate) LocationSummary( |
| isolate, InputCount(), kNumTemps, LocationSummary::kCall); |
| result->set_temp(0, Location::RegisterLocation(R13)); |
| result->set_in(0, Location::FpuRegisterLocation(XMM2)); |
| if (InputCount() == 2) { |
| result->set_in(1, Location::FpuRegisterLocation(XMM1)); |
| } |
| if (recognized_kind() == MethodRecognizer::kMathDoublePow) { |
| // Temp index 1. |
| result->set_temp(1, Location::RegisterLocation(RAX)); |
| // Temp index 2. |
| result->set_temp(2, Location::FpuRegisterLocation(XMM4)); |
| } |
| result->set_out(0, Location::FpuRegisterLocation(XMM3)); |
| return result; |
| } |
| |
| |
| // Pseudo code: |
| // if (exponent == 0.0) return 1.0; |
| // // Speed up simple cases. |
| // if (exponent == 1.0) return base; |
| // if (exponent == 2.0) return base * base; |
| // if (exponent == 3.0) return base * base * base; |
| // if (base == 1.0) return 1.0; |
| // if (base.isNaN || exponent.isNaN) { |
| // return double.NAN; |
| // } |
| // if (base != -Infinity && exponent == 0.5) { |
| // if (base == 0.0) return 0.0; |
| // return sqrt(value); |
| // } |
| // TODO(srdjan): Move into a stub? |
| static void InvokeDoublePow(FlowGraphCompiler* compiler, |
| InvokeMathCFunctionInstr* instr) { |
| ASSERT(instr->recognized_kind() == MethodRecognizer::kMathDoublePow); |
| const intptr_t kInputCount = 2; |
| ASSERT(instr->InputCount() == kInputCount); |
| LocationSummary* locs = instr->locs(); |
| |
| XmmRegister base = locs->in(0).fpu_reg(); |
| XmmRegister exp = locs->in(1).fpu_reg(); |
| XmmRegister result = locs->out(0).fpu_reg(); |
| Register temp = |
| locs->temp(InvokeMathCFunctionInstr::kObjectTempIndex).reg(); |
| XmmRegister zero_temp = |
| locs->temp(InvokeMathCFunctionInstr::kDoubleTempIndex).fpu_reg(); |
| |
| __ xorps(zero_temp, zero_temp); |
| __ LoadObject(temp, Double::ZoneHandle(Double::NewCanonical(1)), PP); |
| __ movsd(result, FieldAddress(temp, Double::value_offset())); |
| |
| Label check_base, skip_call; |
| // exponent == 0.0 -> return 1.0; |
| __ comisd(exp, zero_temp); |
| __ j(PARITY_EVEN, &check_base, Assembler::kNearJump); |
| __ j(EQUAL, &skip_call); // 'result' is 1.0. |
| |
| // exponent == 1.0 ? |
| __ comisd(exp, result); |
| Label return_base; |
| __ j(EQUAL, &return_base, Assembler::kNearJump); |
| |
| // exponent == 2.0 ? |
| __ LoadObject(temp, Double::ZoneHandle(Double::NewCanonical(2.0)), PP); |
| __ movsd(XMM0, FieldAddress(temp, Double::value_offset())); |
| __ comisd(exp, XMM0); |
| Label return_base_times_2; |
| __ j(EQUAL, &return_base_times_2, Assembler::kNearJump); |
| |
| // exponent == 3.0 ? |
| __ LoadObject(temp, Double::ZoneHandle(Double::NewCanonical(3.0)), PP); |
| __ movsd(XMM0, FieldAddress(temp, Double::value_offset())); |
| __ comisd(exp, XMM0); |
| __ j(NOT_EQUAL, &check_base); |
| |
| // Base times 3. |
| __ movsd(result, base); |
| __ mulsd(result, base); |
| __ mulsd(result, base); |
| __ jmp(&skip_call); |
| |
| __ Bind(&return_base); |
| __ movsd(result, base); |
| __ jmp(&skip_call); |
| |
| __ Bind(&return_base_times_2); |
| __ movsd(result, base); |
| __ mulsd(result, base); |
| __ jmp(&skip_call); |
| |
| __ Bind(&check_base); |
| // Note: 'exp' could be NaN. |
| |
| Label return_nan; |
| // base == 1.0 -> return 1.0; |
| __ comisd(base, result); |
| __ j(PARITY_EVEN, &return_nan, Assembler::kNearJump); |
| __ j(EQUAL, &skip_call, Assembler::kNearJump); |
| // Note: 'base' could be NaN. |
| __ comisd(exp, base); |
| // Neither 'exp' nor 'base' is NaN. |
| Label try_sqrt; |
| __ j(PARITY_ODD, &try_sqrt, Assembler::kNearJump); |
| // Return NaN. |
| __ Bind(&return_nan); |
| __ LoadObject(temp, Double::ZoneHandle(Double::NewCanonical(NAN)), PP); |
| __ movsd(result, FieldAddress(temp, Double::value_offset())); |
| __ jmp(&skip_call); |
| |
| Label do_pow, return_zero; |
| __ Bind(&try_sqrt); |
| // Before calling pow, check if we could use sqrt instead of pow. |
| __ LoadObject(temp, |
| Double::ZoneHandle(Double::NewCanonical(-INFINITY)), PP); |
| __ movsd(result, FieldAddress(temp, Double::value_offset())); |
| // base == -Infinity -> call pow; |
| __ comisd(base, result); |
| __ j(EQUAL, &do_pow, Assembler::kNearJump); |
| |
| // exponent == 0.5 ? |
| __ LoadObject(temp, Double::ZoneHandle(Double::NewCanonical(0.5)), PP); |
| __ movsd(result, FieldAddress(temp, Double::value_offset())); |
| __ comisd(exp, result); |
| __ j(NOT_EQUAL, &do_pow, Assembler::kNearJump); |
| |
| // base == 0 -> return 0; |
| __ comisd(base, zero_temp); |
| __ j(EQUAL, &return_zero, Assembler::kNearJump); |
| |
| __ sqrtsd(result, base); |
| __ jmp(&skip_call, Assembler::kNearJump); |
| |
| __ Bind(&return_zero); |
| __ movsd(result, zero_temp); |
| __ jmp(&skip_call); |
| |
| __ Bind(&do_pow); |
| |
| // Save RSP. |
| __ movq(locs->temp(InvokeMathCFunctionInstr::kSavedSpTempIndex).reg(), RSP); |
| __ ReserveAlignedFrameSpace(0); |
| __ movaps(XMM0, locs->in(0).fpu_reg()); |
| ASSERT(locs->in(1).fpu_reg() == XMM1); |
| |
| __ CallRuntime(instr->TargetFunction(), kInputCount); |
| __ movaps(locs->out(0).fpu_reg(), XMM0); |
| // Restore RSP. |
| __ movq(RSP, locs->temp(InvokeMathCFunctionInstr::kSavedSpTempIndex).reg()); |
| __ Bind(&skip_call); |
| } |
| |
| |
| void InvokeMathCFunctionInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| if (recognized_kind() == MethodRecognizer::kMathDoublePow) { |
| InvokeDoublePow(compiler, this); |
| return; |
| } |
| // Save RSP. |
| __ movq(locs()->temp(kSavedSpTempIndex).reg(), RSP); |
| __ ReserveAlignedFrameSpace(0); |
| __ movaps(XMM0, locs()->in(0).fpu_reg()); |
| if (InputCount() == 2) { |
| ASSERT(locs()->in(1).fpu_reg() == XMM1); |
| } |
| |
| __ CallRuntime(TargetFunction(), InputCount()); |
| __ movaps(locs()->out(0).fpu_reg(), XMM0); |
| // Restore RSP. |
| __ movq(RSP, locs()->temp(kSavedSpTempIndex).reg()); |
| } |
| |
| |
| LocationSummary* ExtractNthOutputInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| // Only use this instruction in optimized code. |
| ASSERT(opt); |
| const intptr_t kNumInputs = 1; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, 0, LocationSummary::kNoCall); |
| if (representation() == kUnboxedDouble) { |
| if (index() == 0) { |
| summary->set_in(0, Location::Pair(Location::RequiresFpuRegister(), |
| Location::Any())); |
| } else { |
| ASSERT(index() == 1); |
| summary->set_in(0, Location::Pair(Location::Any(), |
| Location::RequiresFpuRegister())); |
| } |
| summary->set_out(0, Location::RequiresFpuRegister()); |
| } else { |
| ASSERT(representation() == kTagged); |
| if (index() == 0) { |
| summary->set_in(0, Location::Pair(Location::RequiresRegister(), |
| Location::Any())); |
| } else { |
| ASSERT(index() == 1); |
| summary->set_in(0, Location::Pair(Location::Any(), |
| Location::RequiresRegister())); |
| } |
| summary->set_out(0, Location::RequiresRegister()); |
| } |
| return summary; |
| } |
| |
| |
| void ExtractNthOutputInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| ASSERT(locs()->in(0).IsPairLocation()); |
| PairLocation* pair = locs()->in(0).AsPairLocation(); |
| Location in_loc = pair->At(index()); |
| if (representation() == kUnboxedDouble) { |
| XmmRegister out = locs()->out(0).fpu_reg(); |
| XmmRegister in = in_loc.fpu_reg(); |
| __ movaps(out, in); |
| } else { |
| ASSERT(representation() == kTagged); |
| Register out = locs()->out(0).reg(); |
| Register in = in_loc.reg(); |
| __ movq(out, in); |
| } |
| } |
| |
| |
| LocationSummary* MergedMathInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| if (kind() == MergedMathInstr::kTruncDivMod) { |
| const intptr_t kNumInputs = 2; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| // Both inputs must be writable because they will be untagged. |
| summary->set_in(0, Location::RegisterLocation(RAX)); |
| summary->set_in(1, Location::WritableRegister()); |
| summary->set_out(0, Location::Pair(Location::RegisterLocation(RAX), |
| Location::RegisterLocation(RDX))); |
| return summary; |
| } |
| if (kind() == MergedMathInstr::kSinCos) { |
| const intptr_t kNumInputs = 1; |
| const intptr_t kNumTemps = 1; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kCall); |
| // Because we always call into the runtime (LocationSummary::kCall) we |
| // must specify each input, temp, and output register explicitly. |
| summary->set_in(0, Location::FpuRegisterLocation(XMM1)); |
| // R13 is chosen because it is callee saved so we do not need to back it |
| // up before calling into the runtime. |
| summary->set_temp(0, Location::RegisterLocation(R13)); |
| summary->set_out(0, Location::Pair(Location::FpuRegisterLocation(XMM2), |
| Location::FpuRegisterLocation(XMM3))); |
| return summary; |
| } |
| UNIMPLEMENTED(); |
| return NULL; |
| } |
| |
| |
| |
| typedef void (*SinCosCFunction) (double x, double* res_sin, double* res_cos); |
| |
| extern const RuntimeEntry kSinCosRuntimeEntry( |
| "libc_sincos", reinterpret_cast<RuntimeFunction>( |
| static_cast<SinCosCFunction>(&SinCos)), 1, true, true); |
| |
| |
| void MergedMathInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| Label* deopt = NULL; |
| if (CanDeoptimize()) { |
| deopt = compiler->AddDeoptStub(deopt_id(), ICData::kDeoptBinarySmiOp); |
| } |
| if (kind() == MergedMathInstr::kTruncDivMod) { |
| Register left = locs()->in(0).reg(); |
| Register right = locs()->in(1).reg(); |
| ASSERT(locs()->out(0).IsPairLocation()); |
| PairLocation* pair = locs()->out(0).AsPairLocation(); |
| Register result1 = pair->At(0).reg(); |
| Register result2 = pair->At(1).reg(); |
| Label not_32bit, done; |
| Register temp = RDX; |
| ASSERT(left == RAX); |
| ASSERT((right != RDX) && (right != RAX)); |
| ASSERT(result1 == RAX); |
| ASSERT(result2 == RDX); |
| Range* right_range = InputAt(1)->definition()->range(); |
| if ((right_range == NULL) || right_range->Overlaps(0, 0)) { |
| // Handle divide by zero in runtime. |
| __ testq(right, right); |
| __ j(ZERO, deopt); |
| } |
| // Check if both operands fit into 32bits as idiv with 64bit operands |
| // requires twice as many cycles and has much higher latency. |
| // We are checking this before untagging them to avoid corner case |
| // dividing INT_MAX by -1 that raises exception because quotient is |
| // too large for 32bit register. |
| __ movsxd(temp, left); |
| __ cmpq(temp, left); |
| __ j(NOT_EQUAL, ¬_32bit); |
| __ movsxd(temp, right); |
| __ cmpq(temp, right); |
| __ j(NOT_EQUAL, ¬_32bit); |
| |
| // Both operands are 31bit smis. Divide using 32bit idiv. |
| __ SmiUntag(left); |
| __ SmiUntag(right); |
| __ cdq(); |
| __ idivl(right); |
| __ movsxd(RAX, RAX); |
| __ movsxd(RDX, RDX); |
| __ jmp(&done); |
| |
| // Divide using 64bit idiv. |
| __ Bind(¬_32bit); |
| __ SmiUntag(left); |
| __ SmiUntag(right); |
| __ cqo(); // Sign extend RAX -> RDX:RAX. |
| __ idivq(right); // RAX: quotient, RDX: remainder. |
| // Check the corner case of dividing the 'MIN_SMI' with -1, in which |
| // case we cannot tag the result. |
| __ CompareImmediate(RAX, Immediate(0x4000000000000000), PP); |
| __ j(EQUAL, deopt); |
| __ Bind(&done); |
| |
| // Modulo correction (RDX). |
| // res = left % right; |
| // if (res < 0) { |
| // if (right < 0) { |
| // res = res - right; |
| // } else { |
| // res = res + right; |
| // } |
| // } |
| Label all_done; |
| __ cmpq(RDX, Immediate(0)); |
| __ j(GREATER_EQUAL, &all_done, Assembler::kNearJump); |
| // Result is negative, adjust it. |
| if ((right_range == NULL) || right_range->Overlaps(-1, 1)) { |
| Label subtract; |
| __ cmpq(right, Immediate(0)); |
| __ j(LESS, &subtract, Assembler::kNearJump); |
| __ addq(RDX, right); |
| __ jmp(&all_done, Assembler::kNearJump); |
| __ Bind(&subtract); |
| __ subq(RDX, right); |
| } else if (right_range->IsPositive()) { |
| // Right is positive. |
| __ addq(RDX, right); |
| } else { |
| // Right is negative. |
| __ subq(RDX, right); |
| } |
| __ Bind(&all_done); |
| |
| __ SmiTag(RAX); |
| __ SmiTag(RDX); |
| // FLAG_throw_on_javascript_int_overflow: not needed. |
| // Note that the result of an integer division/modulo of two |
| // in-range arguments, cannot create out-of-range result. |
| return; |
| } |
| if (kind() == MergedMathInstr::kSinCos) { |
| ASSERT(locs()->out(0).IsPairLocation()); |
| PairLocation* pair = locs()->out(0).AsPairLocation(); |
| XmmRegister out1 = pair->At(0).fpu_reg(); |
| XmmRegister out2 = pair->At(1).fpu_reg(); |
| |
| // Save RSP. |
| __ movq(locs()->temp(0).reg(), RSP); |
| // +-------------------------------+ |
| // | double-argument | <- TOS |
| // +-------------------------------+ |
| // | address-cos-result | +8 |
| // +-------------------------------+ |
| // | address-sin-result | +16 |
| // +-------------------------------+ |
| // | double-storage-for-cos-result | +24 |
| // +-------------------------------+ |
| // | double-storage-for-sin-result | +32 |
| // +-------------------------------+ |
| // .... |
| __ ReserveAlignedFrameSpace(kDoubleSize * 3 + kWordSize * 2); |
| __ movsd(Address(RSP, 0), locs()->in(0).fpu_reg()); |
| |
| __ leaq(RDI, Address(RSP, 2 * kWordSize + kDoubleSize)); |
| __ leaq(RSI, Address(RSP, 2 * kWordSize + 2 * kDoubleSize)); |
| __ movaps(XMM0, locs()->in(0).fpu_reg()); |
| |
| __ CallRuntime(kSinCosRuntimeEntry, InputCount()); |
| __ movsd(out2, Address(RSP, 2 * kWordSize + kDoubleSize * 2)); // sin. |
| __ movsd(out1, Address(RSP, 2 * kWordSize + kDoubleSize)); // cos. |
| // Restore RSP. |
| __ movq(RSP, locs()->temp(0).reg()); |
| |
| return; |
| } |
| UNIMPLEMENTED(); |
| } |
| |
| |
| LocationSummary* PolymorphicInstanceCallInstr::MakeLocationSummary( |
| Isolate* isolate, bool opt) const { |
| return MakeCallSummary(); |
| } |
| |
| |
| void PolymorphicInstanceCallInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| Label* deopt = compiler->AddDeoptStub( |
| deopt_id(), ICData::kDeoptPolymorphicInstanceCallTestFail); |
| if (ic_data().NumberOfChecks() == 0) { |
| __ jmp(deopt); |
| return; |
| } |
| ASSERT(ic_data().NumArgsTested() == 1); |
| if (!with_checks()) { |
| ASSERT(ic_data().HasOneTarget()); |
| const Function& target = Function::ZoneHandle(ic_data().GetTargetAt(0)); |
| compiler->GenerateStaticCall(deopt_id(), |
| instance_call()->token_pos(), |
| target, |
| instance_call()->ArgumentCount(), |
| instance_call()->argument_names(), |
| locs(), |
| ICData::Handle()); |
| return; |
| } |
| |
| // Load receiver into RAX. |
| __ movq(RAX, |
| Address(RSP, (instance_call()->ArgumentCount() - 1) * kWordSize)); |
| LoadValueCid(compiler, RDI, RAX, |
| (ic_data().GetReceiverClassIdAt(0) == kSmiCid) ? NULL : deopt); |
| compiler->EmitTestAndCall(ic_data(), |
| RDI, // Class id register. |
| instance_call()->ArgumentCount(), |
| instance_call()->argument_names(), |
| deopt, |
| deopt_id(), |
| instance_call()->token_pos(), |
| locs()); |
| } |
| |
| |
| LocationSummary* BranchInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| comparison()->InitializeLocationSummary(isolate, opt); |
| // Branches don't produce a result. |
| comparison()->locs()->set_out(0, Location::NoLocation()); |
| return comparison()->locs(); |
| } |
| |
| |
| void BranchInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| comparison()->EmitBranchCode(compiler, this); |
| } |
| |
| |
| LocationSummary* CheckClassInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 1; |
| const intptr_t kNumTemps = !IsNullCheck() ? 1 : 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RequiresRegister()); |
| if (!IsNullCheck()) { |
| summary->set_temp(0, Location::RequiresRegister()); |
| } |
| return summary; |
| } |
| |
| |
| void CheckClassInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| const ICData::DeoptReasonId deopt_reason = licm_hoisted_ ? |
| ICData::kDeoptHoistedCheckClass : ICData::kDeoptCheckClass; |
| if (IsNullCheck()) { |
| Label* deopt = compiler->AddDeoptStub(deopt_id(), deopt_reason); |
| __ CompareObject(locs()->in(0).reg(), |
| Object::null_object(), PP); |
| __ j(EQUAL, deopt); |
| return; |
| } |
| |
| ASSERT((unary_checks().GetReceiverClassIdAt(0) != kSmiCid) || |
| (unary_checks().NumberOfChecks() > 1)); |
| Register value = locs()->in(0).reg(); |
| Register temp = locs()->temp(0).reg(); |
| Label* deopt = compiler->AddDeoptStub(deopt_id(), deopt_reason); |
| Label is_ok; |
| intptr_t cix = 0; |
| if (unary_checks().GetReceiverClassIdAt(cix) == kSmiCid) { |
| __ testq(value, Immediate(kSmiTagMask)); |
| __ j(ZERO, &is_ok); |
| cix++; // Skip first check. |
| } else { |
| __ testq(value, Immediate(kSmiTagMask)); |
| __ j(ZERO, deopt); |
| } |
| __ LoadClassId(temp, value); |
| const intptr_t num_checks = unary_checks().NumberOfChecks(); |
| const bool use_near_jump = num_checks < 5; |
| for (intptr_t i = cix; i < num_checks; i++) { |
| ASSERT(unary_checks().GetReceiverClassIdAt(i) != kSmiCid); |
| __ cmpl(temp, Immediate(unary_checks().GetReceiverClassIdAt(i))); |
| if (i == (num_checks - 1)) { |
| __ j(NOT_EQUAL, deopt); |
| } else { |
| if (use_near_jump) { |
| __ j(EQUAL, &is_ok, Assembler::kNearJump); |
| } else { |
| __ j(EQUAL, &is_ok); |
| } |
| } |
| } |
| __ Bind(&is_ok); |
| } |
| |
| |
| LocationSummary* CheckSmiInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 1; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| summary->set_in(0, Location::RequiresRegister()); |
| return summary; |
| } |
| |
| |
| void CheckSmiInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| Register value = locs()->in(0).reg(); |
| Label* deopt = compiler->AddDeoptStub(deopt_id(), ICData::kDeoptCheckSmi); |
| __ testq(value, Immediate(kSmiTagMask)); |
| __ j(NOT_ZERO, deopt); |
| } |
| |
| |
| LocationSummary* CheckArrayBoundInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 2; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* locs = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| locs->set_in(kLengthPos, Location::RegisterOrSmiConstant(length())); |
| locs->set_in(kIndexPos, Location::RegisterOrSmiConstant(index())); |
| return locs; |
| } |
| |
| |
| void CheckArrayBoundInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| Label* deopt = compiler->AddDeoptStub(deopt_id(), |
| ICData::kDeoptCheckArrayBound); |
| |
| Location length_loc = locs()->in(kLengthPos); |
| Location index_loc = locs()->in(kIndexPos); |
| |
| if (length_loc.IsConstant() && index_loc.IsConstant()) { |
| ASSERT((Smi::Cast(length_loc.constant()).Value() <= |
| Smi::Cast(index_loc.constant()).Value()) || |
| (Smi::Cast(index_loc.constant()).Value() < 0)); |
| // Unconditionally deoptimize for constant bounds checks because they |
| // only occur only when index is out-of-bounds. |
| __ jmp(deopt); |
| return; |
| } |
| |
| if (index_loc.IsConstant()) { |
| Register length = length_loc.reg(); |
| const Smi& index = Smi::Cast(index_loc.constant()); |
| __ CompareImmediate( |
| length, Immediate(reinterpret_cast<int64_t>(index.raw())), PP); |
| __ j(BELOW_EQUAL, deopt); |
| } else if (length_loc.IsConstant()) { |
| const Smi& length = Smi::Cast(length_loc.constant()); |
| Register index = index_loc.reg(); |
| __ CompareImmediate( |
| index, Immediate(reinterpret_cast<int64_t>(length.raw())), PP); |
| __ j(ABOVE_EQUAL, deopt); |
| } else { |
| Register length = length_loc.reg(); |
| Register index = index_loc.reg(); |
| __ cmpq(index, length); |
| __ j(ABOVE_EQUAL, deopt); |
| } |
| } |
| |
| |
| LocationSummary* UnboxIntegerInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| UNIMPLEMENTED(); |
| return NULL; |
| } |
| |
| |
| void UnboxIntegerInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| UNIMPLEMENTED(); |
| } |
| |
| |
| LocationSummary* BoxIntegerInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| UNIMPLEMENTED(); |
| return NULL; |
| } |
| |
| |
| void BoxIntegerInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| UNIMPLEMENTED(); |
| } |
| |
| |
| LocationSummary* BinaryMintOpInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| UNIMPLEMENTED(); |
| return NULL; |
| } |
| |
| |
| void BinaryMintOpInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| UNIMPLEMENTED(); |
| } |
| |
| |
| LocationSummary* UnaryMintOpInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| UNIMPLEMENTED(); |
| return NULL; |
| } |
| |
| |
| void UnaryMintOpInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| UNIMPLEMENTED(); |
| } |
| |
| |
| bool ShiftMintOpInstr::has_shift_count_check() const { |
| UNREACHABLE(); |
| return false; |
| } |
| |
| |
| LocationSummary* ShiftMintOpInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| UNIMPLEMENTED(); |
| return NULL; |
| } |
| |
| |
| void ShiftMintOpInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| UNIMPLEMENTED(); |
| } |
| |
| |
| LocationSummary* ThrowInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| return new(isolate) LocationSummary(isolate, 0, 0, LocationSummary::kCall); |
| } |
| |
| |
| void ThrowInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| compiler->GenerateRuntimeCall(token_pos(), |
| deopt_id(), |
| kThrowRuntimeEntry, |
| 1, |
| locs()); |
| __ int3(); |
| } |
| |
| |
| LocationSummary* ReThrowInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| return new(isolate) LocationSummary(isolate, 0, 0, LocationSummary::kCall); |
| } |
| |
| |
| void ReThrowInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| compiler->SetNeedsStacktrace(catch_try_index()); |
| compiler->GenerateRuntimeCall(token_pos(), |
| deopt_id(), |
| kReThrowRuntimeEntry, |
| 2, |
| locs()); |
| __ int3(); |
| } |
| |
| |
| void GraphEntryInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| if (!compiler->CanFallThroughTo(normal_entry())) { |
| __ jmp(compiler->GetJumpLabel(normal_entry())); |
| } |
| } |
| |
| |
| void TargetEntryInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| __ Bind(compiler->GetJumpLabel(this)); |
| if (!compiler->is_optimizing()) { |
| if (compiler->NeedsEdgeCounter(this)) { |
| compiler->EmitEdgeCounter(); |
| } |
| // The deoptimization descriptor points after the edge counter code for |
| // uniformity with ARM and MIPS, where we can reuse pattern matching |
| // code that matches backwards from the end of the pattern. |
| compiler->AddCurrentDescriptor(PcDescriptors::kDeopt, |
| deopt_id_, |
| Scanner::kNoSourcePos); |
| } |
| if (HasParallelMove()) { |
| compiler->parallel_move_resolver()->EmitNativeCode(parallel_move()); |
| } |
| } |
| |
| |
| LocationSummary* GotoInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| return new(isolate) LocationSummary(isolate, 0, 0, LocationSummary::kNoCall); |
| } |
| |
| |
| void GotoInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| if (!compiler->is_optimizing()) { |
| if (FLAG_emit_edge_counters) { |
| compiler->EmitEdgeCounter(); |
| } |
| // Add a deoptimization descriptor for deoptimizing instructions that |
| // may be inserted before this instruction. This descriptor points |
| // after the edge counter for uniformity with ARM and MIPS, where we can |
| // reuse pattern matching that matches backwards from the end of the |
| // pattern. |
| compiler->AddCurrentDescriptor(PcDescriptors::kDeopt, |
| GetDeoptId(), |
| Scanner::kNoSourcePos); |
| } |
| if (HasParallelMove()) { |
| compiler->parallel_move_resolver()->EmitNativeCode(parallel_move()); |
| } |
| |
| // We can fall through if the successor is the next block in the list. |
| // Otherwise, we need a jump. |
| if (!compiler->CanFallThroughTo(successor())) { |
| __ jmp(compiler->GetJumpLabel(successor())); |
| } |
| } |
| |
| |
| LocationSummary* CurrentContextInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| return LocationSummary::Make(isolate, |
| 0, |
| Location::RequiresRegister(), |
| LocationSummary::kNoCall); |
| } |
| |
| |
| void CurrentContextInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| __ MoveRegister(locs()->out(0).reg(), CTX); |
| } |
| |
| |
| LocationSummary* StrictCompareInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 2; |
| const intptr_t kNumTemps = 0; |
| if (needs_number_check()) { |
| LocationSummary* locs = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kCall); |
| locs->set_in(0, Location::RegisterLocation(RAX)); |
| locs->set_in(1, Location::RegisterLocation(RCX)); |
| locs->set_out(0, Location::RegisterLocation(RAX)); |
| return locs; |
| } |
| LocationSummary* locs = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kNoCall); |
| locs->set_in(0, Location::RegisterOrConstant(left())); |
| // Only one of the inputs can be a constant. Choose register if the first one |
| // is a constant. |
| locs->set_in(1, locs->in(0).IsConstant() |
| ? Location::RequiresRegister() |
| : Location::RegisterOrConstant(right())); |
| locs->set_out(0, Location::RequiresRegister()); |
| return locs; |
| } |
| |
| |
| Condition StrictCompareInstr::EmitComparisonCode(FlowGraphCompiler* compiler, |
| BranchLabels labels) { |
| Location left = locs()->in(0); |
| Location right = locs()->in(1); |
| ASSERT(!left.IsConstant() || !right.IsConstant()); |
| if (left.IsConstant()) { |
| compiler->EmitEqualityRegConstCompare(right.reg(), |
| left.constant(), |
| needs_number_check(), |
| token_pos()); |
| } else if (right.IsConstant()) { |
| compiler->EmitEqualityRegConstCompare(left.reg(), |
| right.constant(), |
| needs_number_check(), |
| token_pos()); |
| } else { |
| compiler->EmitEqualityRegRegCompare(left.reg(), |
| right.reg(), |
| needs_number_check(), |
| token_pos()); |
| } |
| |
| Condition true_condition = (kind() == Token::kEQ_STRICT) ? EQUAL : NOT_EQUAL; |
| return true_condition; |
| } |
| |
| |
| void StrictCompareInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| ASSERT(kind() == Token::kEQ_STRICT || kind() == Token::kNE_STRICT); |
| |
| Label is_true, is_false; |
| BranchLabels labels = { &is_true, &is_false, &is_false }; |
| |
| Condition true_condition = EmitComparisonCode(compiler, labels); |
| EmitBranchOnCondition(compiler, true_condition, labels); |
| |
| Register result = locs()->out(0).reg(); |
| Label done; |
| __ Bind(&is_false); |
| __ LoadObject(result, Bool::False(), PP); |
| __ jmp(&done); |
| __ Bind(&is_true); |
| __ LoadObject(result, Bool::True(), PP); |
| __ Bind(&done); |
| } |
| |
| |
| void StrictCompareInstr::EmitBranchCode(FlowGraphCompiler* compiler, |
| BranchInstr* branch) { |
| ASSERT(kind() == Token::kEQ_STRICT || kind() == Token::kNE_STRICT); |
| |
| BranchLabels labels = compiler->CreateBranchLabels(branch); |
| Condition true_condition = EmitComparisonCode(compiler, labels); |
| EmitBranchOnCondition(compiler, true_condition, labels); |
| } |
| |
| |
| LocationSummary* ClosureCallInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| const intptr_t kNumInputs = 1; |
| const intptr_t kNumTemps = 0; |
| LocationSummary* summary = new(isolate) LocationSummary( |
| isolate, kNumInputs, kNumTemps, LocationSummary::kCall); |
| summary->set_in(0, Location::RegisterLocation(RAX)); // Function. |
| summary->set_out(0, Location::RegisterLocation(RAX)); |
| return summary; |
| } |
| |
| |
| void ClosureCallInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| // Arguments descriptor is expected in R10. |
| intptr_t argument_count = ArgumentCount(); |
| const Array& arguments_descriptor = |
| Array::ZoneHandle(ArgumentsDescriptor::New(argument_count, |
| argument_names())); |
| __ LoadObject(R10, arguments_descriptor, PP); |
| |
| // Function in RAX. |
| ASSERT(locs()->in(0).reg() == RAX); |
| __ movq(RCX, FieldAddress(RAX, Function::instructions_offset())); |
| |
| // RAX: Function. |
| // R10: Arguments descriptor array. |
| // RBX: Smi 0 (no IC data; the lazy-compile stub expects a GC-safe value). |
| __ xorq(RBX, RBX); |
| __ addq(RCX, Immediate(Instructions::HeaderSize() - kHeapObjectTag)); |
| __ call(RCX); |
| compiler->AddCurrentDescriptor(PcDescriptors::kClosureCall, |
| deopt_id(), |
| token_pos()); |
| compiler->RecordSafepoint(locs()); |
| // Marks either the continuation point in unoptimized code or the |
| // deoptimization point in optimized code, after call. |
| const intptr_t deopt_id_after = Isolate::ToDeoptAfter(deopt_id()); |
| if (compiler->is_optimizing()) { |
| compiler->AddDeoptIndexAtCall(deopt_id_after, token_pos()); |
| } else { |
| // Add deoptimization continuation point after the call and before the |
| // arguments are removed. |
| compiler->AddCurrentDescriptor(PcDescriptors::kDeopt, |
| deopt_id_after, |
| token_pos()); |
| } |
| __ Drop(argument_count); |
| } |
| |
| |
| LocationSummary* BooleanNegateInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| return LocationSummary::Make(isolate, |
| 1, |
| Location::RequiresRegister(), |
| LocationSummary::kNoCall); |
| } |
| |
| |
| void BooleanNegateInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| Register value = locs()->in(0).reg(); |
| Register result = locs()->out(0).reg(); |
| |
| Label done; |
| __ LoadObject(result, Bool::True(), PP); |
| __ CompareRegisters(result, value); |
| __ j(NOT_EQUAL, &done, Assembler::kNearJump); |
| __ LoadObject(result, Bool::False(), PP); |
| __ Bind(&done); |
| } |
| |
| |
| LocationSummary* AllocateObjectInstr::MakeLocationSummary(Isolate* isolate, |
| bool opt) const { |
| return MakeCallSummary(); |
| } |
| |
| |
| void AllocateObjectInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| const Code& stub = Code::Handle(StubCode::GetAllocationStubForClass(cls())); |
| const ExternalLabel label(stub.EntryPoint()); |
| compiler->GenerateCall(token_pos(), |
| &label, |
| PcDescriptors::kOther, |
| locs()); |
| __ Drop(ArgumentCount()); // Discard arguments. |
| } |
| |
| |
| void DebugStepCheckInstr::EmitNativeCode(FlowGraphCompiler* compiler) { |
| ASSERT(!compiler->is_optimizing()); |
| const ExternalLabel label(StubCode::DebugStepCheckEntryPoint()); |
| __ movq(R10, Immediate(0)); |
| __ movq(RBX, Immediate(0)); |
| compiler->GenerateCall(token_pos(), &label, stub_kind_, locs()); |
| #if defined(DEBUG) |
| __ movq(R10, Immediate(kInvalidObjectPointer)); |
| __ movq(RBX, Immediate(kInvalidObjectPointer)); |
| #endif |
| } |
| |
| } // namespace dart |
| |
| #undef __ |
| |
| #endif // defined TARGET_ARCH_X64 |