Revision: 16060
Author: [email protected]
Date: Mon Aug 5 10:04:10 2013
Log: MIPS: Replace HCheckPrototypeMaps by explicit map checks of
constant values.
Port r16055 (7567e57f)
BUG=
Review URL: https://codereview.chromium.org/21639003
http://code.google.com/p/v8/source/detail?r=16060
Modified:
/branches/bleeding_edge/src/mips/lithium-codegen-mips.cc
/branches/bleeding_edge/src/mips/lithium-mips.cc
/branches/bleeding_edge/src/mips/lithium-mips.h
=======================================
--- /branches/bleeding_edge/src/mips/lithium-codegen-mips.cc Fri Aug 2
11:35:19 2013
+++ /branches/bleeding_edge/src/mips/lithium-codegen-mips.cc Mon Aug 5
10:04:10 2013
@@ -5270,25 +5270,6 @@
__ bind(&done);
}
-
-
-void LCodeGen::DoCheckPrototypeMaps(LCheckPrototypeMaps* instr) {
- if (instr->hydrogen()->CanOmitPrototypeChecks()) return;
-
- Register prototype_reg = ToRegister(instr->temp());
- Register map_reg = ToRegister(instr->temp2());
-
- ZoneList<Handle<JSObject> >* prototypes = instr->prototypes();
- ZoneList<Handle<Map> >* maps = instr->maps();
-
- ASSERT(prototypes->length() == maps->length());
-
- for (int i = 0; i < prototypes->length(); i++) {
- __ LoadHeapObject(prototype_reg, prototypes->at(i));
- __ lw(map_reg, FieldMemOperand(prototype_reg, HeapObject::kMapOffset));
- DoCheckMapCommon(map_reg, maps->at(i), instr->environment());
- }
-}
void LCodeGen::DoAllocate(LAllocate* instr) {
=======================================
--- /branches/bleeding_edge/src/mips/lithium-mips.cc Fri Aug 2 04:24:55
2013
+++ /branches/bleeding_edge/src/mips/lithium-mips.cc Mon Aug 5 10:04:10
2013
@@ -1924,19 +1924,6 @@
LInstruction* result = new(zone()) LCheckInstanceType(value);
return AssignEnvironment(result);
}
-
-
-LInstruction* LChunkBuilder::DoCheckPrototypeMaps(HCheckPrototypeMaps*
instr) {
- LUnallocated* temp1 = NULL;
- LOperand* temp2 = NULL;
- if (!instr->CanOmitPrototypeChecks()) {
- temp1 = TempRegister();
- temp2 = TempRegister();
- }
- LCheckPrototypeMaps* result = new(zone()) LCheckPrototypeMaps(temp1,
temp2);
- if (instr->CanOmitPrototypeChecks()) return result;
- return AssignEnvironment(result);
-}
LInstruction* LChunkBuilder::DoCheckFunction(HCheckFunction* instr) {
=======================================
--- /branches/bleeding_edge/src/mips/lithium-mips.h Fri Aug 2 04:24:55 2013
+++ /branches/bleeding_edge/src/mips/lithium-mips.h Mon Aug 5 10:04:10 2013
@@ -68,7 +68,6 @@
V(CheckMaps) \
V(CheckMapValue) \
V(CheckNonSmi) \
- V(CheckPrototypeMaps) \
V(CheckSmi) \
V(ClampDToUint8) \
V(ClampIToUint8) \
@@ -2324,26 +2323,6 @@
};
-class LCheckPrototypeMaps: public LTemplateInstruction<0, 0, 2> {
- public:
- LCheckPrototypeMaps(LOperand* temp, LOperand* temp2) {
- temps_[0] = temp;
- temps_[1] = temp2;
- }
-
- LOperand* temp() { return temps_[0]; }
- LOperand* temp2() { return temps_[1]; }
-
- DECLARE_CONCRETE_INSTRUCTION(CheckPrototypeMaps, "check-prototype-maps")
- DECLARE_HYDROGEN_ACCESSOR(CheckPrototypeMaps)
-
- ZoneList<Handle<JSObject> >* prototypes() const {
- return hydrogen()->prototypes();
- }
- ZoneList<Handle<Map> >* maps() const { return hydrogen()->maps(); }
-};
-
-
class LCheckSmi: public LTemplateInstruction<1, 1, 0> {
public:
explicit LCheckSmi(LOperand* value) {
--
--
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