5ef05d8e2c
The handwritten-assembly implementations of both dispatcher and generic stub have been replaced by Turbofan-generated stubs. Review-Url: https://codereview.chromium.org/2523473002 Cr-Commit-Position: refs/heads/master@{#41188}
138 lines
3.8 KiB
C++
138 lines
3.8 KiB
C++
// Copyright 2012 the V8 project authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file.
|
|
|
|
#ifndef V8_CODEGEN_H_
|
|
#define V8_CODEGEN_H_
|
|
|
|
#include "src/code-stubs.h"
|
|
#include "src/globals.h"
|
|
#include "src/runtime/runtime.h"
|
|
|
|
// Include the declaration of the architecture defined class CodeGenerator.
|
|
// The contract to the shared code is that the the CodeGenerator is a subclass
|
|
// of Visitor and that the following methods are available publicly:
|
|
// MakeCode
|
|
// MakeCodePrologue
|
|
// MakeCodeEpilogue
|
|
// masm
|
|
// frame
|
|
// script
|
|
// has_valid_frame
|
|
// SetFrame
|
|
// DeleteFrame
|
|
// allocator
|
|
// AddDeferred
|
|
// in_spilled_code
|
|
// set_in_spilled_code
|
|
// RecordPositions
|
|
//
|
|
// These methods are either used privately by the shared code or implemented as
|
|
// shared code:
|
|
// CodeGenerator
|
|
// ~CodeGenerator
|
|
// Generate
|
|
// ComputeLazyCompile
|
|
// ProcessDeclarations
|
|
// DeclareGlobals
|
|
// CheckForInlineRuntimeCall
|
|
// AnalyzeCondition
|
|
// CodeForFunctionPosition
|
|
// CodeForReturnPosition
|
|
// CodeForStatementPosition
|
|
// CodeForDoWhileConditionPosition
|
|
// CodeForSourcePosition
|
|
|
|
#if V8_TARGET_ARCH_IA32
|
|
#include "src/ia32/codegen-ia32.h" // NOLINT
|
|
#elif V8_TARGET_ARCH_X64
|
|
#include "src/x64/codegen-x64.h" // NOLINT
|
|
#elif V8_TARGET_ARCH_ARM64
|
|
#include "src/arm64/codegen-arm64.h" // NOLINT
|
|
#elif V8_TARGET_ARCH_ARM
|
|
#include "src/arm/codegen-arm.h" // NOLINT
|
|
#elif V8_TARGET_ARCH_PPC
|
|
#include "src/ppc/codegen-ppc.h" // NOLINT
|
|
#elif V8_TARGET_ARCH_MIPS
|
|
#include "src/mips/codegen-mips.h" // NOLINT
|
|
#elif V8_TARGET_ARCH_MIPS64
|
|
#include "src/mips64/codegen-mips64.h" // NOLINT
|
|
#elif V8_TARGET_ARCH_S390
|
|
#include "src/s390/codegen-s390.h" // NOLINT
|
|
#elif V8_TARGET_ARCH_X87
|
|
#include "src/x87/codegen-x87.h" // NOLINT
|
|
#else
|
|
#error Unsupported target architecture.
|
|
#endif
|
|
|
|
namespace v8 {
|
|
namespace internal {
|
|
|
|
|
|
class CompilationInfo;
|
|
class EhFrameWriter;
|
|
|
|
class CodeGenerator {
|
|
public:
|
|
// Printing of AST, etc. as requested by flags.
|
|
static void MakeCodePrologue(CompilationInfo* info, const char* kind);
|
|
|
|
// Allocate and install the code.
|
|
static Handle<Code> MakeCodeEpilogue(MacroAssembler* masm,
|
|
EhFrameWriter* unwinding,
|
|
CompilationInfo* info,
|
|
Handle<Object> self_reference);
|
|
|
|
// Print the code after compiling it.
|
|
static void PrintCode(Handle<Code> code, CompilationInfo* info);
|
|
|
|
private:
|
|
DISALLOW_COPY_AND_ASSIGN(CodeGenerator);
|
|
};
|
|
|
|
|
|
// Results of the library implementation of transcendental functions may differ
|
|
// from the one we use in our generated code. Therefore we use the same
|
|
// generated code both in runtime and compiled code.
|
|
typedef double (*UnaryMathFunctionWithIsolate)(double x, Isolate* isolate);
|
|
|
|
UnaryMathFunctionWithIsolate CreateSqrtFunction(Isolate* isolate);
|
|
|
|
V8_EXPORT_PRIVATE double modulo(double x, double y);
|
|
|
|
// Custom implementation of math functions.
|
|
double fast_sqrt(double input, Isolate* isolate);
|
|
void lazily_initialize_fast_sqrt(Isolate* isolate);
|
|
|
|
class CodeAgingHelper {
|
|
public:
|
|
explicit CodeAgingHelper(Isolate* isolate);
|
|
|
|
uint32_t young_sequence_length() const { return young_sequence_.length(); }
|
|
bool IsYoung(byte* candidate) const {
|
|
return memcmp(candidate,
|
|
young_sequence_.start(),
|
|
young_sequence_.length()) == 0;
|
|
}
|
|
void CopyYoungSequenceTo(byte* new_buffer) const {
|
|
CopyBytes(new_buffer, young_sequence_.start(), young_sequence_.length());
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
bool IsOld(byte* candidate) const;
|
|
#endif
|
|
|
|
protected:
|
|
const EmbeddedVector<byte, kNoCodeAgeSequenceLength> young_sequence_;
|
|
#ifdef DEBUG
|
|
#ifdef V8_TARGET_ARCH_ARM64
|
|
const EmbeddedVector<byte, kNoCodeAgeSequenceLength> old_sequence_;
|
|
#endif
|
|
#endif
|
|
};
|
|
|
|
} // namespace internal
|
|
} // namespace v8
|
|
|
|
#endif // V8_CODEGEN_H_
|