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// Copyright 2012 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#ifndef V8_CODEGEN_H_
#define V8_CODEGEN_H_
#include "code-stubs.h"
#include "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
// BuildFunctionInfo
// ProcessDeclarations
// DeclareGlobals
// CheckForInlineRuntimeCall
// AnalyzeCondition
// CodeForFunctionPosition
// CodeForReturnPosition
// CodeForStatementPosition
// CodeForDoWhileConditionPosition
// CodeForSourcePosition
enum TypeofState { INSIDE_TYPEOF, NOT_INSIDE_TYPEOF };
#if V8_TARGET_ARCH_IA32
#include "ia32/codegen-ia32.h"
#elif V8_TARGET_ARCH_X64
#include "x64/codegen-x64.h"
#elif V8_TARGET_ARCH_ARM
#include "arm/codegen-arm.h"
#elif V8_TARGET_ARCH_MIPS
#include "mips/codegen-mips.h"
#else
#error Unsupported target architecture.
#endif
namespace v8 {
namespace internal {
class CompilationInfo;
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,
Code::Flags flags,
CompilationInfo* info);
// Print the code after compiling it.
static void PrintCode(Handle<Code> code, CompilationInfo* info);
static bool ShouldGenerateLog(Isolate* isolate, Expression* type);
static bool RecordPositions(MacroAssembler* masm,
int pos,
bool right_here = false);
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 (*UnaryMathFunction)(double x);
UnaryMathFunction CreateExpFunction();
UnaryMathFunction CreateSqrtFunction();
class ElementsTransitionGenerator : public AllStatic {
public:
// If |mode| is set to DONT_TRACK_ALLOCATION_SITE,
// |allocation_memento_found| may be NULL.
static void GenerateMapChangeElementsTransition(MacroAssembler* masm,
AllocationSiteMode mode,
Label* allocation_memento_found);
static void GenerateSmiToDouble(MacroAssembler* masm,
AllocationSiteMode mode,
Label* fail);
static void GenerateDoubleToObject(MacroAssembler* masm,
AllocationSiteMode mode,
Label* fail);
private:
DISALLOW_COPY_AND_ASSIGN(ElementsTransitionGenerator);
};
static const int kNumberDictionaryProbes = 4;
} } // namespace v8::internal
#endif // V8_CODEGEN_H_
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