Title: [97037] trunk/Source/_javascript_Core
- Revision
- 97037
- Author
- [email protected]
- Date
- 2011-10-09 20:11:10 -0700 (Sun, 09 Oct 2011)
Log Message
JSVALUE32_64 DFG JIT - Bug fix for ConvertThis
https://bugs.webkit.org/show_bug.cgi?id=69721
Patch by Yuqiang Xian <[email protected]> on 2011-10-09
Reviewed by Darin Adler.
* dfg/DFGSpeculativeJIT32_64.cpp:
(JSC::DFG::SpeculativeJIT::compile):
Modified Paths
Diff
Modified: trunk/Source/_javascript_Core/ChangeLog (97036 => 97037)
--- trunk/Source/_javascript_Core/ChangeLog 2011-10-10 02:29:02 UTC (rev 97036)
+++ trunk/Source/_javascript_Core/ChangeLog 2011-10-10 03:11:10 UTC (rev 97037)
@@ -1,5 +1,15 @@
2011-10-09 Yuqiang Xian <[email protected]>
+ JSVALUE32_64 DFG JIT - Bug fix for ConvertThis
+ https://bugs.webkit.org/show_bug.cgi?id=69721
+
+ Reviewed by Darin Adler.
+
+ * dfg/DFGSpeculativeJIT32_64.cpp:
+ (JSC::DFG::SpeculativeJIT::compile):
+
+2011-10-09 Yuqiang Xian <[email protected]>
+
Remove unused callOperation code of DFG JIT on X86
https://bugs.webkit.org/show_bug.cgi?id=69722
Modified: trunk/Source/_javascript_Core/dfg/DFGSpeculativeJIT32_64.cpp (97036 => 97037)
--- trunk/Source/_javascript_Core/dfg/DFGSpeculativeJIT32_64.cpp 2011-10-10 02:29:02 UTC (rev 97036)
+++ trunk/Source/_javascript_Core/dfg/DFGSpeculativeJIT32_64.cpp 2011-10-10 03:11:10 UTC (rev 97037)
@@ -1759,9 +1759,10 @@
GPRReg thisValueTagGPR = thisValue.tagGPR();
GPRReg scratchGPR = scratch.gpr();
+ COMPILE_ASSERT((JSValue::UndefinedTag | 1) == JSValue::NullTag, UndefinedTag_OR_1_EQUALS_NullTag);
m_jit.move(thisValueTagGPR, scratchGPR);
- m_jit.and32(MacroAssembler::TrustedImm32(JSValue::UndefinedTag), scratchGPR);
- speculationCheck(m_jit.branch32(MacroAssembler::NotEqual, scratchGPR, TrustedImm32(JSValue::UndefinedTag)));
+ m_jit.or32(TrustedImm32(1), scratchGPR);
+ speculationCheck(m_jit.branch32(MacroAssembler::NotEqual, scratchGPR, TrustedImm32(JSValue::NullTag)));
m_jit.move(MacroAssembler::TrustedImmPtr(m_jit.codeBlock()->globalObject()), scratchGPR);
cellResult(scratchGPR, m_compileIndex);
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