Title: [157591] trunk/Source/_javascript_Core
- Revision
- 157591
- Author
- [email protected]
- Date
- 2013-10-17 12:53:01 -0700 (Thu, 17 Oct 2013)
Log Message
Change emit_op_catch to use another method to materialize VM
https://bugs.webkit.org/show_bug.cgi?id=122977
Reviewed by Oliver Hunt.
* jit/JITOpcodes.cpp:
(JSC::JIT::emit_op_catch):
* jit/JITOpcodes32_64.cpp:
(JSC::JIT::emit_op_catch): Use a constant. It removes our dependency
on JITStackFrame. It is also faster and simpler.
Modified Paths
Diff
Modified: trunk/Source/_javascript_Core/ChangeLog (157590 => 157591)
--- trunk/Source/_javascript_Core/ChangeLog 2013-10-17 19:42:37 UTC (rev 157590)
+++ trunk/Source/_javascript_Core/ChangeLog 2013-10-17 19:53:01 UTC (rev 157591)
@@ -1,5 +1,18 @@
2013-10-17 Geoffrey Garen <[email protected]>
+ Change emit_op_catch to use another method to materialize VM
+ https://bugs.webkit.org/show_bug.cgi?id=122977
+
+ Reviewed by Oliver Hunt.
+
+ * jit/JITOpcodes.cpp:
+ (JSC::JIT::emit_op_catch):
+ * jit/JITOpcodes32_64.cpp:
+ (JSC::JIT::emit_op_catch): Use a constant. It removes our dependency
+ on JITStackFrame. It is also faster and simpler.
+
+2013-10-17 Geoffrey Garen <[email protected]>
+
Eliminate emitGetJITStubArg() - dead code
https://bugs.webkit.org/show_bug.cgi?id=122975
Modified: trunk/Source/_javascript_Core/jit/JITOpcodes.cpp (157590 => 157591)
--- trunk/Source/_javascript_Core/jit/JITOpcodes.cpp 2013-10-17 19:42:37 UTC (rev 157590)
+++ trunk/Source/_javascript_Core/jit/JITOpcodes.cpp 2013-10-17 19:53:01 UTC (rev 157591)
@@ -665,7 +665,7 @@
{
killLastResultRegister(); // FIXME: Implicitly treat op_catch as a labeled statement, and remove this line of code.
move(regT0, callFrameRegister);
- peek(regT3, OBJECT_OFFSETOF(struct JITStackFrame, vm) / sizeof(void*));
+ move(TrustedImmPtr(m_vm), regT3);
load64(Address(regT3, VM::exceptionOffset()), regT0);
store64(TrustedImm64(JSValue::encode(JSValue())), Address(regT3, VM::exceptionOffset()));
emitPutVirtualRegister(currentInstruction[1].u.operand);
Modified: trunk/Source/_javascript_Core/jit/JITOpcodes32_64.cpp (157590 => 157591)
--- trunk/Source/_javascript_Core/jit/JITOpcodes32_64.cpp 2013-10-17 19:42:37 UTC (rev 157590)
+++ trunk/Source/_javascript_Core/jit/JITOpcodes32_64.cpp 2013-10-17 19:53:01 UTC (rev 157591)
@@ -971,7 +971,7 @@
move(regT0, callFrameRegister);
// Now store the exception returned by operationThrow.
- loadPtr(Address(stackPointerRegister, OBJECT_OFFSETOF(struct JITStackFrame, vm)), regT3);
+ move(TrustedImmPtr(m_vm), regT3);
load32(Address(regT3, VM::exceptionOffset() + OBJECT_OFFSETOF(JSValue, u.asBits.payload)), regT0);
load32(Address(regT3, VM::exceptionOffset() + OBJECT_OFFSETOF(JSValue, u.asBits.tag)), regT1);
store32(TrustedImm32(JSValue().payload()), Address(regT3, VM::exceptionOffset() + OBJECT_OFFSETOF(JSValue, u.asBits.payload)));
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