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Unified Diff: src/full-codegen/x64/full-codegen-x64.cc

Issue 1267493006: Remove JSFunctionResultCache. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: rebase Created 5 years, 4 months ago
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Index: src/full-codegen/x64/full-codegen-x64.cc
diff --git a/src/full-codegen/x64/full-codegen-x64.cc b/src/full-codegen/x64/full-codegen-x64.cc
index b5dc54eea0e0beb33d8484d0570f7fe40c487a36..34d614aedae7ccf546a16e7b1deace5de8204b5a 100644
--- a/src/full-codegen/x64/full-codegen-x64.cc
+++ b/src/full-codegen/x64/full-codegen-x64.cc
@@ -4178,63 +4178,6 @@ void FullCodeGenerator::EmitRegExpConstructResult(CallRuntime* expr) {
}
-void FullCodeGenerator::EmitGetFromCache(CallRuntime* expr) {
- ZoneList<Expression*>* args = expr->arguments();
- DCHECK_EQ(2, args->length());
-
- DCHECK_NOT_NULL(args->at(0)->AsLiteral());
- int cache_id = Smi::cast(*(args->at(0)->AsLiteral()->value()))->value();
-
- Handle<FixedArray> jsfunction_result_caches(
- isolate()->native_context()->jsfunction_result_caches());
- if (jsfunction_result_caches->length() <= cache_id) {
- __ Abort(kAttemptToUseUndefinedCache);
- __ LoadRoot(rax, Heap::kUndefinedValueRootIndex);
- context()->Plug(rax);
- return;
- }
-
- VisitForAccumulatorValue(args->at(1));
-
- Register key = rax;
- Register cache = rbx;
- Register tmp = rcx;
- __ movp(cache, ContextOperand(rsi, Context::GLOBAL_OBJECT_INDEX));
- __ movp(cache,
- FieldOperand(cache, GlobalObject::kNativeContextOffset));
- __ movp(cache,
- ContextOperand(cache, Context::JSFUNCTION_RESULT_CACHES_INDEX));
- __ movp(cache,
- FieldOperand(cache, FixedArray::OffsetOfElementAt(cache_id)));
-
- Label done, not_found;
- STATIC_ASSERT(kSmiTag == 0 && kSmiTagSize == 1);
- __ movp(tmp, FieldOperand(cache, JSFunctionResultCache::kFingerOffset));
- // tmp now holds finger offset as a smi.
- SmiIndex index =
- __ SmiToIndex(kScratchRegister, tmp, kPointerSizeLog2);
- __ cmpp(key, FieldOperand(cache,
- index.reg,
- index.scale,
- FixedArray::kHeaderSize));
- __ j(not_equal, &not_found, Label::kNear);
- __ movp(rax, FieldOperand(cache,
- index.reg,
- index.scale,
- FixedArray::kHeaderSize + kPointerSize));
- __ jmp(&done, Label::kNear);
-
- __ bind(&not_found);
- // Call runtime to perform the lookup.
- __ Push(cache);
- __ Push(key);
- __ CallRuntime(Runtime::kGetFromCacheRT, 2);
-
- __ bind(&done);
- context()->Plug(rax);
-}
-
-
void FullCodeGenerator::EmitHasCachedArrayIndex(CallRuntime* expr) {
ZoneList<Expression*>* args = expr->arguments();
DCHECK(args->length() == 1);
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