[apple/javascriptcore.git] / jit / JITDriver.h

/*
 * Copyright (C) 2012 Apple Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. 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.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. 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 JITDriver_h
#define JITDriver_h

#include <wtf/Platform.h>

#if ENABLE(JIT)

#include "BytecodeGenerator.h"
#include "DFGDriver.h"
#include "JIT.h"
#include "LLIntEntrypoints.h"

namespace JSC {

template<typename CodeBlockType>
inline bool jitCompileIfAppropriate(ExecState* exec, OwnPtr<CodeBlockType>& codeBlock, JITCode& jitCode, JITCode::JITType jitType, unsigned bytecodeIndex, JITCompilationEffort effort)
{
    VM& vm = exec->vm();
    
    if (jitType == codeBlock->getJITType())
        return true;
    
    if (!vm.canUseJIT())
        return true;
    
    codeBlock->unlinkIncomingCalls();
    
    JITCode oldJITCode = jitCode;
    
    bool dfgCompiled = false;
    if (jitType == JITCode::DFGJIT)
        dfgCompiled = DFG::tryCompile(exec, codeBlock.get(), jitCode, bytecodeIndex);
    if (dfgCompiled) {
        if (codeBlock->alternative())
            codeBlock->alternative()->unlinkIncomingCalls();
    } else {
        if (codeBlock->alternative()) {
            codeBlock = static_pointer_cast<CodeBlockType>(codeBlock->releaseAlternative());
            jitCode = oldJITCode;
            return false;
        }
        jitCode = JIT::compile(&vm, codeBlock.get(), effort);
        if (!jitCode) {
            jitCode = oldJITCode;
            return false;
        }
    }
    codeBlock->setJITCode(jitCode, MacroAssemblerCodePtr());
    
    return true;
}

inline bool jitCompileFunctionIfAppropriate(ExecState* exec, OwnPtr<FunctionCodeBlock>& codeBlock, JITCode& jitCode, MacroAssemblerCodePtr& jitCodeWithArityCheck, JITCode::JITType jitType, unsigned bytecodeIndex, JITCompilationEffort effort)
{
    VM& vm = exec->vm();
    
    if (jitType == codeBlock->getJITType())
        return true;
    
    if (!vm.canUseJIT())
        return true;
    
    codeBlock->unlinkIncomingCalls();
    
    JITCode oldJITCode = jitCode;
    MacroAssemblerCodePtr oldJITCodeWithArityCheck = jitCodeWithArityCheck;
    
    bool dfgCompiled = false;
    if (jitType == JITCode::DFGJIT)
        dfgCompiled = DFG::tryCompileFunction(exec, codeBlock.get(), jitCode, jitCodeWithArityCheck, bytecodeIndex);
    if (dfgCompiled) {
        if (codeBlock->alternative())
            codeBlock->alternative()->unlinkIncomingCalls();
    } else {
        if (codeBlock->alternative()) {
            codeBlock = static_pointer_cast<FunctionCodeBlock>(codeBlock->releaseAlternative());
            jitCode = oldJITCode;
            jitCodeWithArityCheck = oldJITCodeWithArityCheck;
            return false;
        }
        jitCode = JIT::compile(&vm, codeBlock.get(), effort, &jitCodeWithArityCheck);
        if (!jitCode) {
            jitCode = oldJITCode;
            jitCodeWithArityCheck = oldJITCodeWithArityCheck;
            return false;
        }
    }
    codeBlock->setJITCode(jitCode, jitCodeWithArityCheck);
    
    return true;
}

} // namespace JSC

#endif // ENABLE(JIT)

#endif // JITDriver_h
Commit	Line	Data
6fe7ccc8 A	1	/*
	2	* Copyright (C) 2012 Apple Inc. All rights reserved.
	3	*
	4	* Redistribution and use in source and binary forms, with or without
	5	* modification, are permitted provided that the following conditions
	6	* are met:
	7	* 1. Redistributions of source code must retain the above copyright
	8	* notice, this list of conditions and the following disclaimer.
	9	* 2. Redistributions in binary form must reproduce the above copyright
	10	* notice, this list of conditions and the following disclaimer in the
	11	* documentation and/or other materials provided with the distribution.
	12	*
	13	* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
	14	* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	15	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
	16	* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
	17	* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
	18	* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
	19	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
	20	* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
	21	* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	22	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
	23	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	24	*/
	25
	26	#ifndef JITDriver_h
	27	#define JITDriver_h
	28
	29	#include <wtf/Platform.h>
	30
	31	#if ENABLE(JIT)
	32
	33	#include "BytecodeGenerator.h"
	34	#include "DFGDriver.h"
	35	#include "JIT.h"
	36	#include "LLIntEntrypoints.h"
	37
	38	namespace JSC {
	39
	40	template<typename CodeBlockType>
93a37866	41	inline bool jitCompileIfAppropriate(ExecState* exec, OwnPtr<CodeBlockType>& codeBlock, JITCode& jitCode, JITCode::JITType jitType, unsigned bytecodeIndex, JITCompilationEffort effort)
6fe7ccc8	42	{
93a37866 A	43	VM& vm = exec->vm();
93a37866 A	44
6fe7ccc8 A	45	if (jitType == codeBlock->getJITType())
	46	return true;
	47
93a37866	48	if (!vm.canUseJIT())
6fe7ccc8 A	49	return true;
	50
	51	codeBlock->unlinkIncomingCalls();
	52
	53	JITCode oldJITCode = jitCode;
	54
	55	bool dfgCompiled = false;
	56	if (jitType == JITCode::DFGJIT)
93a37866	57	dfgCompiled = DFG::tryCompile(exec, codeBlock.get(), jitCode, bytecodeIndex);
6fe7ccc8 A	58	if (dfgCompiled) {
	59	if (codeBlock->alternative())
	60	codeBlock->alternative()->unlinkIncomingCalls();
	61	} else {
	62	if (codeBlock->alternative()) {
	63	codeBlock = static_pointer_cast<CodeBlockType>(codeBlock->releaseAlternative());
	64	jitCode = oldJITCode;
	65	return false;
	66	}
93a37866	67	jitCode = JIT::compile(&vm, codeBlock.get(), effort);
6fe7ccc8 A	68	if (!jitCode) {
	69	jitCode = oldJITCode;
	70	return false;
	71	}
	72	}
	73	codeBlock->setJITCode(jitCode, MacroAssemblerCodePtr());
	74
	75	return true;
	76	}
	77
93a37866	78	inline bool jitCompileFunctionIfAppropriate(ExecState* exec, OwnPtr<FunctionCodeBlock>& codeBlock, JITCode& jitCode, MacroAssemblerCodePtr& jitCodeWithArityCheck, JITCode::JITType jitType, unsigned bytecodeIndex, JITCompilationEffort effort)
6fe7ccc8	79	{
93a37866 A	80	VM& vm = exec->vm();
93a37866 A	81
6fe7ccc8 A	82	if (jitType == codeBlock->getJITType())
	83	return true;
	84
93a37866	85	if (!vm.canUseJIT())
6fe7ccc8 A	86	return true;
	87
	88	codeBlock->unlinkIncomingCalls();
	89
	90	JITCode oldJITCode = jitCode;
	91	MacroAssemblerCodePtr oldJITCodeWithArityCheck = jitCodeWithArityCheck;
	92
	93	bool dfgCompiled = false;
	94	if (jitType == JITCode::DFGJIT)
93a37866	95	dfgCompiled = DFG::tryCompileFunction(exec, codeBlock.get(), jitCode, jitCodeWithArityCheck, bytecodeIndex);
6fe7ccc8 A	96	if (dfgCompiled) {
	97	if (codeBlock->alternative())
	98	codeBlock->alternative()->unlinkIncomingCalls();
	99	} else {
	100	if (codeBlock->alternative()) {
	101	codeBlock = static_pointer_cast<FunctionCodeBlock>(codeBlock->releaseAlternative());
6fe7ccc8 A	102	jitCode = oldJITCode;
	103	jitCodeWithArityCheck = oldJITCodeWithArityCheck;
	104	return false;
	105	}
93a37866	106	jitCode = JIT::compile(&vm, codeBlock.get(), effort, &jitCodeWithArityCheck);
6fe7ccc8 A	107	if (!jitCode) {
	108	jitCode = oldJITCode;
	109	jitCodeWithArityCheck = oldJITCodeWithArityCheck;
	110	return false;
	111	}
	112	}
	113	codeBlock->setJITCode(jitCode, jitCodeWithArityCheck);
	114
	115	return true;
	116	}
	117
	118	} // namespace JSC
	119
	120	#endif // ENABLE(JIT)
	121
	122	#endif // JITDriver_h
	123