fourthTier: JITCode should abstract exactly how the JIT code is structured and where...
[WebKit-https.git] / Source / JavaScriptCore / runtime / ExecutionHarness.h
1 /*
2  * Copyright (C) 2012 Apple Inc. All rights reserved.
3  *
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10  *    notice, this list of conditions and the following disclaimer in the
11  *    documentation and/or other materials provided with the distribution.
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24  */
25
26 #ifndef ExecutionHarness_h
27 #define ExecutionHarness_h
28
29 #include <wtf/Platform.h>
30
31 #if ENABLE(JIT)
32
33 #include "JITDriver.h"
34 #include "LLIntEntrypoints.h"
35
36 namespace JSC {
37
38 template<typename CodeBlockType>
39 inline bool prepareForExecution(ExecState* exec, OwnPtr<CodeBlockType>& codeBlock, RefPtr<JITCode>& jitCode, JITCode::JITType jitType, unsigned bytecodeIndex)
40 {
41 #if ENABLE(LLINT)
42     if (JITCode::isBaselineCode(jitType)) {
43         // Start off in the low level interpreter.
44         LLInt::getEntrypoint(exec->vm(), codeBlock.get(), jitCode);
45         codeBlock->setJITCode(jitCode, MacroAssemblerCodePtr());
46         if (exec->vm().m_perBytecodeProfiler)
47             exec->vm().m_perBytecodeProfiler->ensureBytecodesFor(codeBlock.get());
48         return true;
49     }
50 #endif // ENABLE(LLINT)
51     return jitCompileIfAppropriate(exec, codeBlock, jitCode, jitType, bytecodeIndex, JITCode::isBaselineCode(jitType) ? JITCompilationMustSucceed : JITCompilationCanFail);
52 }
53
54 inline bool prepareFunctionForExecution(ExecState* exec, OwnPtr<FunctionCodeBlock>& codeBlock, RefPtr<JITCode>& jitCode, MacroAssemblerCodePtr& jitCodeWithArityCheck, JITCode::JITType jitType, unsigned bytecodeIndex, CodeSpecializationKind kind)
55 {
56 #if ENABLE(LLINT)
57     if (JITCode::isBaselineCode(jitType)) {
58         // Start off in the low level interpreter.
59         LLInt::getFunctionEntrypoint(exec->vm(), kind, jitCode, jitCodeWithArityCheck);
60         codeBlock->setJITCode(jitCode, jitCodeWithArityCheck);
61         if (exec->vm().m_perBytecodeProfiler)
62             exec->vm().m_perBytecodeProfiler->ensureBytecodesFor(codeBlock.get());
63         return true;
64     }
65 #else
66     UNUSED_PARAM(kind);
67 #endif // ENABLE(LLINT)
68     return jitCompileFunctionIfAppropriate(exec, codeBlock, jitCode, jitCodeWithArityCheck, jitType, bytecodeIndex, JITCode::isBaselineCode(jitType) ? JITCompilationMustSucceed : JITCompilationCanFail);
69 }
70
71 } // namespace JSC
72
73 #endif // ENABLE(JIT)
74
75 #endif // ExecutionHarness_h
76