Title: [92732] trunk/Source/_javascript_Core
- Revision
- 92732
- Author
- fpi...@apple.com
- Date
- 2011-08-09 17:30:50 -0700 (Tue, 09 Aug 2011)
Log Message
DFG JIT passes the this argument to constructors even though
it's not necessary
https://bugs.webkit.org/show_bug.cgi?id=65943
Reviewed by Gavin Barraclough.
* dfg/DFGJITCodeGenerator.cpp:
(JSC::DFG::JITCodeGenerator::emitCall):
Modified Paths
Diff
Modified: trunk/Source/_javascript_Core/ChangeLog (92731 => 92732)
--- trunk/Source/_javascript_Core/ChangeLog 2011-08-10 00:28:48 UTC (rev 92731)
+++ trunk/Source/_javascript_Core/ChangeLog 2011-08-10 00:30:50 UTC (rev 92732)
@@ -1,3 +1,14 @@
+2011-08-09 Filip Pizlo <fpi...@apple.com>
+
+ DFG JIT passes the this argument to constructors even though
+ it's not necessary
+ https://bugs.webkit.org/show_bug.cgi?id=65943
+
+ Reviewed by Gavin Barraclough.
+
+ * dfg/DFGJITCodeGenerator.cpp:
+ (JSC::DFG::JITCodeGenerator::emitCall):
+
2011-08-09 Chao-ying Fu <f...@mips.com>
Fix one MIPS instruction to call JITStubThunked_##op
Modified: trunk/Source/_javascript_Core/dfg/DFGJITCodeGenerator.cpp (92731 => 92732)
--- trunk/Source/_javascript_Core/dfg/DFGJITCodeGenerator.cpp 2011-08-10 00:28:48 UTC (rev 92731)
+++ trunk/Source/_javascript_Core/dfg/DFGJITCodeGenerator.cpp 2011-08-10 00:30:50 UTC (rev 92732)
@@ -999,7 +999,7 @@
m_jit.storePtr(MacroAssembler::TrustedImmPtr(JSValue::encode(jsNumber(numArgs))), addressOfCallData(RegisterFile::ArgumentCount));
m_jit.storePtr(GPRInfo::callFrameRegister, addressOfCallData(RegisterFile::CallerFrame));
- for (int argIdx = 0; argIdx < numArgs; argIdx++) {
+ for (int argIdx = (node.op == Call ? 0 : 1); argIdx < numArgs; argIdx++) {
NodeIndex argNodeIndex = m_jit.graph().m_varArgChildren[node.firstChild() + 1 + argIdx];
JSValueOperand arg(this, argNodeIndex);
GPRReg argGPR = arg.gpr();
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