Revision: 15967
Author: [email protected]
Date: Tue Jul 30 17:19:32 2013
Log: Introduce StackOperandForReturnAddress operand for X64 to access
return address in the stack
[email protected]
Review URL: https://codereview.chromium.org/20628003
http://code.google.com/p/v8/source/detail?r=15967
Modified:
/branches/bleeding_edge/src/x64/macro-assembler-x64.h
/branches/bleeding_edge/src/x64/stub-cache-x64.cc
=======================================
--- /branches/bleeding_edge/src/x64/macro-assembler-x64.h Fri Jul 19
06:30:49 2013
+++ /branches/bleeding_edge/src/x64/macro-assembler-x64.h Tue Jul 30
17:19:32 2013
@@ -1518,6 +1518,10 @@
}
+inline Operand StackOperandForReturnAddress(int32_t disp) {
+ return Operand(rsp, disp);
+}
+
#ifdef GENERATED_CODE_COVERAGE
extern void LogGeneratedCodeCoverage(const char* file_line);
=======================================
--- /branches/bleeding_edge/src/x64/stub-cache-x64.cc Wed Jul 24 05:34:50
2013
+++ /branches/bleeding_edge/src/x64/stub-cache-x64.cc Tue Jul 30 17:19:32
2013
@@ -410,9 +410,9 @@
// -- rsp[0] : return address
// -- rsp[8] : last argument in the internal frame of the caller
// -----------------------------------
- __ movq(scratch, Operand(rsp, 0));
+ __ movq(scratch, StackOperandForReturnAddress(0));
__ subq(rsp, Immediate(kFastApiCallArguments * kPointerSize));
- __ movq(Operand(rsp, 0), scratch);
+ __ movq(StackOperandForReturnAddress(0), scratch);
__ Move(scratch, Smi::FromInt(0));
for (int i = 1; i <= kFastApiCallArguments; i++) {
__ movq(Operand(rsp, i * kPointerSize), scratch);
@@ -431,8 +431,9 @@
// -- rsp[kFastApiCallArguments * 8 + 8] : last argument in the internal
// frame.
// -----------------------------------
- __ movq(scratch, Operand(rsp, 0));
- __ movq(Operand(rsp, kFastApiCallArguments * kPointerSize), scratch);
+ __ movq(scratch, StackOperandForReturnAddress(0));
+ __ movq(StackOperandForReturnAddress(kFastApiCallArguments *
kPointerSize),
+ scratch);
__ addq(rsp, Immediate(kPointerSize * kFastApiCallArguments));
}
@@ -2350,8 +2351,9 @@
name, depth, &miss);
// Move the return address on top of the stack.
- __ movq(rax, Operand(rsp, kFastApiCallArguments * kPointerSize));
- __ movq(Operand(rsp, 0 * kPointerSize), rax);
+ __ movq(rax,
+ StackOperandForReturnAddress(kFastApiCallArguments *
kPointerSize));
+ __ movq(StackOperandForReturnAddress(0), rax);
GenerateFastApiCall(masm(), optimization, argc);
--
--
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