Version 3.16.13
Tagged stubs that rely on instance types as MEGAMORPHIC. (Chromium issue 173974)
Fixed clearing of dead dependent codes and verifing of weak embedded maps on full GC. (Chromium issue 172488,172489)
Made the arm port build cleanly with Clang.
Performance and stability improvements on all platforms.
git-svn-id: http://v8.googlecode.com/svn/trunk@13588 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
diff --git a/src/mips/stub-cache-mips.cc b/src/mips/stub-cache-mips.cc
index 0be9e03..620dce9 100644
--- a/src/mips/stub-cache-mips.cc
+++ b/src/mips/stub-cache-mips.cc
@@ -2893,9 +2893,11 @@
}
-Handle<Code> LoadStubCompiler::CompileLoadNonexistent(Handle<String> name,
- Handle<JSObject> object,
- Handle<JSObject> last) {
+Handle<Code> LoadStubCompiler::CompileLoadNonexistent(
+ Handle<JSObject> object,
+ Handle<JSObject> last,
+ Handle<String> name,
+ Handle<GlobalObject> global) {
// ----------- S t a t e -------------
// -- a0 : receiver
// -- ra : return address
@@ -2905,14 +2907,22 @@
// Check that the receiver is not a smi.
__ JumpIfSmi(a0, &miss);
+ Register scratch = a1;
+
// Check the maps of the full prototype chain.
- CheckPrototypes(object, a0, last, a3, a1, t0, name, &miss);
+ Register result =
+ CheckPrototypes(object, a0, last, a3, scratch, t0, name, &miss);
// If the last object in the prototype chain is a global object,
// check that the global property cell is empty.
- if (last->IsGlobalObject()) {
- GenerateCheckPropertyCell(
- masm(), Handle<GlobalObject>::cast(last), name, a1, &miss);
+ if (!global.is_null()) {
+ GenerateCheckPropertyCell(masm(), global, name, scratch, &miss);
+ }
+
+ if (!last->HasFastProperties()) {
+ __ lw(scratch, FieldMemOperand(result, HeapObject::kMapOffset));
+ __ lw(scratch, FieldMemOperand(scratch, Map::kPrototypeOffset));
+ __ Branch(&miss, ne, scratch, Operand(isolate()->factory()->null_value()));
}
// Return undefined if maps of the full prototype chain is still the same.
@@ -2927,46 +2937,24 @@
}
-Handle<Code> LoadStubCompiler::CompileLoadField(Handle<JSObject> object,
- Handle<JSObject> holder,
- PropertyIndex index,
- Handle<String> name) {
- // ----------- S t a t e -------------
- // -- a0 : receiver
- // -- a2 : name
- // -- ra : return address
- // -----------------------------------
- Label miss;
-
- __ mov(v0, a0);
-
- GenerateLoadField(object, holder, v0, a3, a1, t0, index, name, &miss);
- __ bind(&miss);
- GenerateLoadMiss(masm(), Code::LOAD_IC);
-
- // Return the generated code.
- return GetCode(Code::FIELD, name);
+Register* LoadStubCompiler::registers() {
+ // receiver, name, scratch1, scratch2, scratch3, scratch4.
+ static Register registers[] = { a0, a2, a3, a1, t0, t1 };
+ return registers;
}
-Handle<Code> LoadStubCompiler::CompileLoadCallback(
- Handle<String> name,
- Handle<JSObject> object,
- Handle<JSObject> holder,
- Handle<AccessorInfo> callback) {
- // ----------- S t a t e -------------
- // -- a0 : receiver
- // -- a2 : name
- // -- ra : return address
- // -----------------------------------
- Label miss;
- GenerateLoadCallback(object, holder, a0, a2, a3, a1, t0, t1, callback, name,
- &miss);
- __ bind(&miss);
- GenerateLoadMiss(masm(), Code::LOAD_IC);
+Register* KeyedLoadStubCompiler::registers() {
+ // receiver, name, scratch1, scratch2, scratch3, scratch4.
+ static Register registers[] = { a1, a0, a2, a3, t0, t1 };
+ return registers;
+}
- // Return the generated code.
- return GetCode(Code::CALLBACKS, name);
+
+void KeyedLoadStubCompiler::GenerateNameCheck(Handle<String> name,
+ Register name_reg,
+ Label* miss) {
+ __ Branch(miss, ne, name_reg, Operand(name));
}
@@ -3008,9 +2996,9 @@
Handle<Code> LoadStubCompiler::CompileLoadViaGetter(
- Handle<String> name,
Handle<JSObject> receiver,
Handle<JSObject> holder,
+ Handle<String> name,
Handle<JSFunction> getter) {
// ----------- S t a t e -------------
// -- a0 : receiver
@@ -3033,49 +3021,6 @@
}
-Handle<Code> LoadStubCompiler::CompileLoadConstant(Handle<JSObject> object,
- Handle<JSObject> holder,
- Handle<JSFunction> value,
- Handle<String> name) {
- // ----------- S t a t e -------------
- // -- a0 : receiver
- // -- a2 : name
- // -- ra : return address
- // -----------------------------------
- Label miss;
-
- GenerateLoadConstant(object, holder, a0, a3, a1, t0, value, name, &miss);
- __ bind(&miss);
- GenerateLoadMiss(masm(), Code::LOAD_IC);
-
- // Return the generated code.
- return GetCode(Code::CONSTANT_FUNCTION, name);
-}
-
-
-Handle<Code> LoadStubCompiler::CompileLoadInterceptor(Handle<JSObject> object,
- Handle<JSObject> holder,
- Handle<String> name) {
- // ----------- S t a t e -------------
- // -- a0 : receiver
- // -- a2 : name
- // -- ra : return address
- // -- [sp] : receiver
- // -----------------------------------
- Label miss;
-
- LookupResult lookup(isolate());
- LookupPostInterceptor(holder, name, &lookup);
- GenerateLoadInterceptor(object, holder, &lookup, a0, a2, a3, a1, t0, name,
- &miss);
- __ bind(&miss);
- GenerateLoadMiss(masm(), Code::LOAD_IC);
-
- // Return the generated code.
- return GetCode(Code::INTERCEPTOR, name);
-}
-
-
Handle<Code> LoadStubCompiler::CompileLoadGlobal(
Handle<JSObject> object,
Handle<GlobalObject> holder,
@@ -3117,101 +3062,6 @@
}
-Handle<Code> KeyedLoadStubCompiler::CompileLoadField(Handle<String> name,
- Handle<JSObject> receiver,
- Handle<JSObject> holder,
- PropertyIndex index) {
- // ----------- S t a t e -------------
- // -- ra : return address
- // -- a0 : key
- // -- a1 : receiver
- // -----------------------------------
- Label miss;
-
- // Check the key is the cached one.
- __ Branch(&miss, ne, a0, Operand(name));
-
- GenerateLoadField(receiver, holder, a1, a2, a3, t0, index, name, &miss);
- __ bind(&miss);
- GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
-
- return GetCode(Code::FIELD, name);
-}
-
-
-Handle<Code> KeyedLoadStubCompiler::CompileLoadCallback(
- Handle<String> name,
- Handle<JSObject> receiver,
- Handle<JSObject> holder,
- Handle<AccessorInfo> callback) {
- // ----------- S t a t e -------------
- // -- ra : return address
- // -- a0 : key
- // -- a1 : receiver
- // -----------------------------------
- Label miss;
-
- // Check the key is the cached one.
- __ Branch(&miss, ne, a0, Operand(name));
-
- GenerateLoadCallback(receiver, holder, a1, a0, a2, a3, t0, t1, callback,
- name, &miss);
- __ bind(&miss);
- GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
-
- return GetCode(Code::CALLBACKS, name);
-}
-
-
-Handle<Code> KeyedLoadStubCompiler::CompileLoadConstant(
- Handle<String> name,
- Handle<JSObject> receiver,
- Handle<JSObject> holder,
- Handle<JSFunction> value) {
- // ----------- S t a t e -------------
- // -- ra : return address
- // -- a0 : key
- // -- a1 : receiver
- // -----------------------------------
- Label miss;
-
- // Check the key is the cached one.
- __ Branch(&miss, ne, a0, Operand(name));
-
- GenerateLoadConstant(receiver, holder, a1, a2, a3, t0, value, name, &miss);
- __ bind(&miss);
- GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
-
- // Return the generated code.
- return GetCode(Code::CONSTANT_FUNCTION, name);
-}
-
-
-Handle<Code> KeyedLoadStubCompiler::CompileLoadInterceptor(
- Handle<JSObject> receiver,
- Handle<JSObject> holder,
- Handle<String> name) {
- // ----------- S t a t e -------------
- // -- ra : return address
- // -- a0 : key
- // -- a1 : receiver
- // -----------------------------------
- Label miss;
-
- // Check the key is the cached one.
- __ Branch(&miss, ne, a0, Operand(name));
-
- LookupResult lookup(isolate());
- LookupPostInterceptor(holder, name, &lookup);
- GenerateLoadInterceptor(receiver, holder, &lookup, a1, a0, a2, a3, t0, name,
- &miss);
- __ bind(&miss);
- GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
-
- return GetCode(Code::INTERCEPTOR, name);
-}
-
-
Handle<Code> KeyedLoadStubCompiler::CompileLoadElement(
Handle<Map> receiver_map) {
// ----------- S t a t e -------------