| // Copyright (c) 2019, 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. |
| |
| #ifndef RUNTIME_VM_COMPILER_BACKEND_EVALUATOR_H_ |
| #define RUNTIME_VM_COMPILER_BACKEND_EVALUATOR_H_ |
| |
| #if defined(DART_PRECOMPILED_RUNTIME) |
| #error "AOT runtime should not use compiler sources (including header files)" |
| #endif // defined(DART_PRECOMPILED_RUNTIME) |
| |
| #include "vm/allocation.h" |
| #include "vm/compiler/backend/flow_graph.h" |
| #include "vm/compiler/backend/il.h" |
| #include "vm/compiler/backend/locations.h" |
| |
| namespace dart { |
| |
| // Namespace for static helper methods that evaluate constant expressions. |
| class Evaluator : public AllStatic { |
| public: |
| // Truncates the given int64 value based on the representation. |
| static int64_t TruncateTo(int64_t v, Representation r); |
| |
| // Evaluates a binary integer operation and returns a pointer to a |
| // canonicalized RawInteger. |
| static IntegerPtr BinaryIntegerEvaluate(const Object& left, |
| const Object& right, |
| Token::Kind token_kind, |
| bool is_truncating, |
| Representation representation, |
| Thread* thread); |
| |
| // Evaluates a unary integer operation and returns a pointer to a |
| // canonicalized RawInteger. |
| static IntegerPtr UnaryIntegerEvaluate(const Object& value, |
| Token::Kind token_kind, |
| Representation representation, |
| Thread* thread); |
| |
| // Evaluates an `int.bitLength` operation and returns a pointer to a |
| // canonicalized RawInteger. |
| static IntegerPtr BitLengthEvaluate(const Object& value, |
| Representation representation, |
| Thread* thread); |
| |
| // Evaluates a binary double operation and returns the result. |
| static double EvaluateDoubleOp(const double left, |
| const double right, |
| Token::Kind token_kind); |
| |
| // Returns whether the value is an int64, and returns the int64 value |
| // through the result parameter. |
| static bool ToIntegerConstant(Value* value, int64_t* result); |
| }; |
| |
| } // namespace dart |
| |
| #endif // RUNTIME_VM_COMPILER_BACKEND_EVALUATOR_H_ |