| commit | b23584eaa018db20d6e97ed49f6219c09fb24a00 | [log] [tgz] |
|---|---|---|
| author | Tess Strickland <sstrickl@google.com> | Fri Oct 04 10:07:51 2024 +0000 |
| committer | Commit Queue <dart-scoped@luci-project-accounts.iam.gserviceaccount.com> | Fri Oct 04 10:07:51 2024 +0000 |
| tree | 682e0569423901a5b65cb45afc5633c2b70ea1c5 | |
| parent | c8442b4a82643deae70fc8f630d8bdf232a4adc2 [diff] |
[vm/compiler] Add reg, reg, imm forms for lsl/asr/and assembler macros.
For non-x86 architectures, these forms directly translate to a
single instruction when possible. On x86 architectures,
XImmediate(dst, src, imm) where X is in {Lsl, ArithmeticShiftRight, And}
can be translated to:
MoveRegister(dst, src);
XImmediate(dst, imm);
in the general case since MoveRegister(dst, src) is a no-op if dst and
src are the same.
Also add versions of these assembler macros that take an OperandSize
and handle 32-bit OperandSizes appropriately on 64-bit architectures.
Ensure the implementation for LslImmediate and
ArithmeticShiftRightImmediate emits no instructions if shift == 0,
dst == src, and OperandSizeInBits(sz) == kBitsPerWord on all
architectures.
-----
Other changes:
Fix ConstantExpression::EmitMoveToLocation on ARM64 to match
other architectures, which allow any word-sized or less unboxed
integer representation.
Fill out ExtendValue on RISCV for previously unimplemented
OperandSizes, using the Zba and Zbb extensions when possible.
-----
TEST=vm/cc/Assembler_AndImmediate vm/cc/Assembler_LslImmediate
vm/cc/Assembler_ArithmeticShiftRightImmediate
Separated out of https://dart-review.googlesource.com/c/sdk/+/378706
for easier debugging/reviewing.
Change-Id: I721f1334784f7011a958ea8af29f0e56c620726c
Cq-Include-Trybots: luci.dart.try:vm-aot-linux-release-simarm_x64-try,vm-aot-linux-debug-x64-try,vm-aot-mac-release-arm64-try,vm-aot-mac-product-arm64-try,vm-aot-linux-product-x64-try,vm-aot-dwarf-linux-product-x64-try,vm-aot-linux-debug-simarm_x64-try,vm-linux-debug-x64-try,vm-mac-debug-arm64-try,vm-mac-release-arm64-try,vm-linux-debug-ia32-try,vm-aot-android-release-arm64c-try,vm-ffi-android-debug-arm64c-try,vm-aot-linux-debug-x64c-try,vm-linux-debug-x64c-try,vm-ffi-qemu-linux-release-arm-try,vm-ffi-qemu-linux-release-riscv64-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/386180
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Commit-Queue: Tess Strickland <sstrickl@google.com>
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