Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(573)

Unified Diff: src/ic/ia32/handler-compiler-ia32.cc

Issue 873723005: Load API holder from prototype chain instead embedding it in handler. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: More fixes Created 5 years, 11 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View side-by-side diff with in-line comments
Download patch
« no previous file with comments | « src/ic/call-optimization.cc ('k') | src/ic/mips/handler-compiler-mips.cc » ('j') | no next file with comments »
Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
Index: src/ic/ia32/handler-compiler-ia32.cc
diff --git a/src/ic/ia32/handler-compiler-ia32.cc b/src/ic/ia32/handler-compiler-ia32.cc
index c7f683fd5b60f8f2400ba9888bebd4a90d6d5582..65adbff48eb683766c22b9425a50d199f3e9dd12 100644
--- a/src/ic/ia32/handler-compiler-ia32.cc
+++ b/src/ic/ia32/handler-compiler-ia32.cc
@@ -175,14 +175,20 @@ void PropertyHandlerCompiler::GenerateApiAccessorCall(
// Put holder in place.
CallOptimization::HolderLookup holder_lookup;
- Handle<JSObject> api_holder =
- optimization.LookupHolderOfExpectedType(receiver_map, &holder_lookup);
+ int holder_depth = 0;
+ optimization.LookupHolderOfExpectedType(receiver_map, &holder_lookup,
+ &holder_depth);
switch (holder_lookup) {
case CallOptimization::kHolderIsReceiver:
__ Move(holder, receiver);
break;
case CallOptimization::kHolderFound:
- __ LoadHeapObject(holder, api_holder);
+ __ mov(holder, FieldOperand(receiver, HeapObject::kMapOffset));
+ __ mov(holder, FieldOperand(holder, Map::kPrototypeOffset));
+ for (int i = 1; i < holder_depth; i++) {
+ __ mov(holder, FieldOperand(holder, HeapObject::kMapOffset));
+ __ mov(holder, FieldOperand(holder, Map::kPrototypeOffset));
+ }
break;
case CallOptimization::kHolderNotFound:
UNREACHABLE();
« no previous file with comments | « src/ic/call-optimization.cc ('k') | src/ic/mips/handler-compiler-mips.cc » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698