projects / apple / javascriptcore.git / blame
| Commit | Line | Data |
|---|---|---|
| 6fe7ccc8 | 1 | /* |
| 81345200 | 2 | * Copyright (C) 2011, 2013 Apple Inc. All rights reserved. |
| 6fe7ccc8 A |
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 | #include "config.h" | |
| 27 | #include "DFGOSRExit.h" | |
| 28 | ||
| 29 | #if ENABLE(DFG_JIT) | |
| 30 | ||
| 81345200 A |
31 | #include "AssemblyHelpers.h" |
| 32 | #include "DFGGraph.h" | |
| 6fe7ccc8 | 33 | #include "DFGSpeculativeJIT.h" |
| 81345200 | 34 | #include "JSCInlines.h" |
| 6fe7ccc8 A |
35 | |
| 36 | namespace JSC { namespace DFG { | |
| 37 | ||
| 93a37866 | 38 | OSRExit::OSRExit(ExitKind kind, JSValueSource jsValueSource, MethodOfGettingAValueProfile valueProfile, SpeculativeJIT* jit, unsigned streamIndex, unsigned recoveryIndex) |
| 81345200 A |
39 | : OSRExitBase(kind, jit->m_codeOriginForExitTarget, jit->m_codeOriginForExitProfile) |
| 40 | , m_jsValueSource(jsValueSource) | |
| 6fe7ccc8 | 41 | , m_valueProfile(valueProfile) |
| 93a37866 | 42 | , m_patchableCodeOffset(0) |
| 6fe7ccc8 | 43 | , m_recoveryIndex(recoveryIndex) |
| 93a37866 | 44 | , m_streamIndex(streamIndex) |
| 6fe7ccc8 A |
45 | { |
| 46 | ASSERT(m_codeOrigin.isSet()); | |
| 6fe7ccc8 A |
47 | } |
| 48 | ||
| 93a37866 | 49 | void OSRExit::setPatchableCodeOffset(MacroAssembler::PatchableJump check) |
| 6fe7ccc8 | 50 | { |
| 93a37866 | 51 | m_patchableCodeOffset = check.m_jump.m_label.m_offset; |
| 6fe7ccc8 A |
52 | } |
| 53 | ||
| 93a37866 | 54 | MacroAssembler::Jump OSRExit::getPatchableCodeOffsetAsJump() const |
| 6fe7ccc8 | 55 | { |
| 93a37866 A |
56 | return MacroAssembler::Jump(AssemblerLabel(m_patchableCodeOffset)); |
| 57 | } | |
| 58 | ||
| 59 | CodeLocationJump OSRExit::codeLocationForRepatch(CodeBlock* dfgCodeBlock) const | |
| 60 | { | |
| 81345200 | 61 | return CodeLocationJump(dfgCodeBlock->jitCode()->dataAddressAtOffset(m_patchableCodeOffset)); |
| 93a37866 A |
62 | } |
| 63 | ||
| 64 | void OSRExit::correctJump(LinkBuffer& linkBuffer) | |
| 65 | { | |
| 66 | MacroAssembler::Label label; | |
| 67 | label.m_label.m_offset = m_patchableCodeOffset; | |
| 68 | m_patchableCodeOffset = linkBuffer.offsetOf(label); | |
| 69 | } | |
| 70 | ||
| 6fe7ccc8 A |
71 | } } // namespace JSC::DFG |
| 72 | ||
| 73 | #endif // ENABLE(DFG_JIT) |