From 967717af5423377c967781471ee106e2bb4e11c8 Mon Sep 17 00:00:00 2001
From: Ben Murdoch <benm@google.com>
Date: Thu, 22 Jul 2010 15:37:06 +0100
Subject: Merge WebKit at r63859 : Initial merge by git.

Change-Id: Ie8096c63ec7c991c9a9cba8bdd9c3b74a3b8ed62
---
 JavaScriptCore/jit/JITOpcodes32_64.cpp | 34 ++++++++++++++++++----------------
 1 file changed, 18 insertions(+), 16 deletions(-)

(limited to 'JavaScriptCore/jit/JITOpcodes32_64.cpp')

diff --git a/JavaScriptCore/jit/JITOpcodes32_64.cpp b/JavaScriptCore/jit/JITOpcodes32_64.cpp
index a44a8a1..658ebc5 100644
--- a/JavaScriptCore/jit/JITOpcodes32_64.cpp
+++ b/JavaScriptCore/jit/JITOpcodes32_64.cpp
@@ -64,10 +64,10 @@ void JIT::privateCompileCTIMachineTrampolines(RefPtr<ExecutablePool>* executable
 
     ret();
 #endif
-
+    
+    JumpList callLinkFailures;
     // (2) Trampolines for the slow cases of op_call / op_call_eval / op_construct.
 #if ENABLE(JIT_OPTIMIZE_CALL)
-    JumpList callLazyLinkFailures;
     // VirtualCallLink Trampoline
     // regT0 holds callee, regT1 holds argCount.  regT2 will hold the FunctionExecutable.
     Label virtualCallLinkBegin = align();
@@ -76,7 +76,7 @@ void JIT::privateCompileCTIMachineTrampolines(RefPtr<ExecutablePool>* executable
     emitPutToCallFrameHeader(regT3, RegisterFile::ReturnPC);
     restoreArgumentReference();
     Call callLazyLinkCall = call();
-    callLazyLinkFailures.append(branchTestPtr(Zero, regT0));
+    callLinkFailures.append(branchTestPtr(Zero, regT0));
     restoreReturnAddressBeforeReturn(regT3);
     emitGetFromCallFrameHeader32(RegisterFile::ArgumentCount, regT1);
     jump(regT0);
@@ -90,22 +90,10 @@ void JIT::privateCompileCTIMachineTrampolines(RefPtr<ExecutablePool>* executable
     restoreArgumentReference();
     Call callLazyLinkConstruct = call();
     restoreReturnAddressBeforeReturn(regT3);
-    callLazyLinkFailures.append(branchTestPtr(Zero, regT0));
+    callLinkFailures.append(branchTestPtr(Zero, regT0));
     emitGetFromCallFrameHeader32(RegisterFile::ArgumentCount, regT1);
     jump(regT0);
 
-    // If the parser fails we want to be able to be able to keep going,
-    // So we handle this as a parse failure.
-    callLazyLinkFailures.link(this);
-    emitGetFromCallFrameHeaderPtr(RegisterFile::ReturnPC, regT1);
-    emitGetFromCallFrameHeaderPtr(RegisterFile::CallerFrame, callFrameRegister);
-    restoreReturnAddressBeforeReturn(regT1);
-    move(ImmPtr(&globalData->exceptionLocation), regT2);
-    storePtr(regT1, regT2);
-    poke(callFrameRegister, 1 + OBJECT_OFFSETOF(struct JITStackFrame, callFrame) / sizeof(void*));
-    poke(ImmPtr(FunctionPtr(ctiVMThrowTrampoline).value()));
-    ret();
-
 #endif // ENABLE(JIT_OPTIMIZE_CALL)
 
     // VirtualCall Trampoline
@@ -119,6 +107,7 @@ void JIT::privateCompileCTIMachineTrampolines(RefPtr<ExecutablePool>* executable
     preserveReturnAddressAfterCall(regT3);
     restoreArgumentReference();
     Call callCompileCall = call();
+    callLinkFailures.append(branchTestPtr(Zero, regT0));
     emitGetFromCallFrameHeader32(RegisterFile::ArgumentCount, regT1);
     restoreReturnAddressBeforeReturn(regT3);
     loadPtr(Address(regT0, OBJECT_OFFSETOF(JSFunction, m_executable)), regT2);
@@ -138,6 +127,7 @@ void JIT::privateCompileCTIMachineTrampolines(RefPtr<ExecutablePool>* executable
     preserveReturnAddressAfterCall(regT3);
     restoreArgumentReference();
     Call callCompileCconstruct = call();
+    callLinkFailures.append(branchTestPtr(Zero, regT0));
     emitGetFromCallFrameHeader32(RegisterFile::ArgumentCount, regT1);
     restoreReturnAddressBeforeReturn(regT3);
     loadPtr(Address(regT0, OBJECT_OFFSETOF(JSFunction, m_executable)), regT2);
@@ -145,6 +135,18 @@ void JIT::privateCompileCTIMachineTrampolines(RefPtr<ExecutablePool>* executable
 
     loadPtr(Address(regT2, OBJECT_OFFSETOF(FunctionExecutable, m_jitCodeForConstructWithArityCheck)), regT0);
     jump(regT0);
+    
+    // If the parser fails we want to be able to be able to keep going,
+    // So we handle this as a parse failure.
+    callLinkFailures.link(this);
+    emitGetFromCallFrameHeaderPtr(RegisterFile::ReturnPC, regT1);
+    emitGetFromCallFrameHeaderPtr(RegisterFile::CallerFrame, callFrameRegister);
+    restoreReturnAddressBeforeReturn(regT1);
+    move(ImmPtr(&globalData->exceptionLocation), regT2);
+    storePtr(regT1, regT2);
+    poke(callFrameRegister, 1 + OBJECT_OFFSETOF(struct JITStackFrame, callFrame) / sizeof(void*));
+    poke(ImmPtr(FunctionPtr(ctiVMThrowTrampoline).value()));
+    ret();
 
     // NativeCall Trampoline
     Label nativeCallThunk = privateCompileCTINativeCall(globalData);    
-- 
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