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Unified Diff: src/ic/arm64/handler-compiler-arm64.cc

Issue 872723003: Load getter from map descriptor instead of embedding it in handler. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Add mips, mips64, x87 Created 5 years, 11 months ago
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Index: src/ic/arm64/handler-compiler-arm64.cc
diff --git a/src/ic/arm64/handler-compiler-arm64.cc b/src/ic/arm64/handler-compiler-arm64.cc
index f434f2e579580fde70bb3a8b5f7ee60fb2788350..53f084b1d406f6c387201ddfa089e7aec8f89f0a 100644
--- a/src/ic/arm64/handler-compiler-arm64.cc
+++ b/src/ic/arm64/handler-compiler-arm64.cc
@@ -263,11 +263,11 @@ void NamedStoreHandlerCompiler::GenerateStoreViaSetter(
void NamedLoadHandlerCompiler::GenerateLoadViaGetter(
MacroAssembler* masm, Handle<HeapType> type, Register receiver,
- Handle<JSFunction> getter) {
+ Register holder, int accessor_index, int expected_arguments) {
{
FrameScope scope(masm, StackFrame::INTERNAL);
- if (!getter.is_null()) {
+ if (accessor_index >= 0) {
// Call the JavaScript getter with the receiver on the stack.
if (IC::TypeToMap(*type, masm->isolate())->IsJSGlobalObjectMap()) {
// Swap in the global receiver.
@@ -276,9 +276,14 @@ void NamedLoadHandlerCompiler::GenerateLoadViaGetter(
}
__ Push(receiver);
ParameterCount actual(0);
- ParameterCount expected(getter);
- __ InvokeFunction(getter, expected, actual, CALL_FUNCTION,
- NullCallWrapper());
+ ParameterCount expected(expected_arguments);
+ Register scratch = holder;
+ __ Ldr(scratch, FieldMemOperand(holder, HeapObject::kMapOffset));
+ __ LoadInstanceDescriptors(scratch, scratch);
+ __ Ldr(scratch, FieldMemOperand(scratch, DescriptorArray::GetValueOffset(
+ accessor_index)));
+ __ Ldr(x1, FieldMemOperand(scratch, AccessorPair::kGetterOffset));
+ __ InvokeFunction(x1, expected, actual, CALL_FUNCTION, NullCallWrapper());
} else {
// If we generate a global code snippet for deoptimization only, remember
// the place to continue after deoptimization.
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