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Unified Diff: src/ic/x64/handler-compiler-x64.cc

Issue 877343003: Fix register aliasing after r26306, r26275. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Remove comment Created 5 years, 11 months ago
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Index: src/ic/x64/handler-compiler-x64.cc
diff --git a/src/ic/x64/handler-compiler-x64.cc b/src/ic/x64/handler-compiler-x64.cc
index 38754a94a0a86557e15453fd250007d05fe25344..d2ee3aaf4429e0b566266676d61bea8374f00146 100644
--- a/src/ic/x64/handler-compiler-x64.cc
+++ b/src/ic/x64/handler-compiler-x64.cc
@@ -214,7 +214,8 @@ void PropertyHandlerCompiler::GenerateCheckPropertyCell(
void NamedStoreHandlerCompiler::GenerateStoreViaSetter(
MacroAssembler* masm, Handle<HeapType> type, Register receiver,
- Register holder, int accessor_index, int expected_arguments) {
+ Register holder, int accessor_index, int expected_arguments,
+ Register scratch) {
// ----------- S t a t e -------------
// -- rsp[0] : return address
// -----------------------------------
@@ -225,11 +226,15 @@ void NamedStoreHandlerCompiler::GenerateStoreViaSetter(
__ Push(value());
if (accessor_index >= 0) {
+ DCHECK(!holder.is(scratch));
+ DCHECK(!receiver.is(scratch));
+ DCHECK(!value().is(scratch));
// Call the JavaScript setter with receiver and value on the stack.
if (IC::TypeToMap(*type, masm->isolate())->IsJSGlobalObjectMap()) {
// Swap in the global receiver.
- __ movp(receiver,
+ __ movp(scratch,
FieldOperand(receiver, JSGlobalObject::kGlobalProxyOffset));
+ receiver = scratch;
}
__ Push(receiver);
__ Push(value());
@@ -256,7 +261,8 @@ void NamedStoreHandlerCompiler::GenerateStoreViaSetter(
void NamedLoadHandlerCompiler::GenerateLoadViaGetter(
MacroAssembler* masm, Handle<HeapType> type, Register receiver,
- Register holder, int accessor_index, int expected_arguments) {
+ Register holder, int accessor_index, int expected_arguments,
+ Register scratch) {
// ----------- S t a t e -------------
// -- rax : receiver
// -- rcx : name
@@ -266,11 +272,14 @@ void NamedLoadHandlerCompiler::GenerateLoadViaGetter(
FrameScope scope(masm, StackFrame::INTERNAL);
if (accessor_index >= 0) {
+ DCHECK(!holder.is(scratch));
+ DCHECK(!receiver.is(scratch));
// Call the JavaScript getter with the receiver on the stack.
if (IC::TypeToMap(*type, masm->isolate())->IsJSGlobalObjectMap()) {
// Swap in the global receiver.
- __ movp(receiver,
+ __ movp(scratch,
FieldOperand(receiver, JSGlobalObject::kGlobalProxyOffset));
+ receiver = scratch;
}
__ Push(receiver);
ParameterCount actual(0);
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