AuroraMiddleware/v8
1
0
Fork 0
Code Issues 2 Pull Requests Releases Wiki Activity

x64: Implement context stores and loads, unknown osr value, and osr

Browse Source 
entry in lithium backend.

Review URL: http://codereview.chromium.org/6566002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6906 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
ager@chromium.org 2011-02-23 09:51:53 +00:00
parent ae328e61b0
commit bfb1cb4288
3 changed files with 58 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
src/x64/lithium-codegen-x64.cc
View File

@ -1906,7 +1906,20 @@ void LCodeGen::DoStoreGlobal(LStoreGlobal* instr) {
void LCodeGen::DoLoadContextSlot(LLoadContextSlot* instr) {
Abort("Unimplemented: %s", "DoLoadContextSlot");
Register context = ToRegister(instr->context());
Register result = ToRegister(instr->result());
__ movq(result, ContextOperand(context, instr->slot_index()));
}
void LCodeGen::DoStoreContextSlot(LStoreContextSlot* instr) {
Register context = ToRegister(instr->context());
Register value = ToRegister(instr->value());
__ movq(ContextOperand(context, instr->slot_index()), value);
if (instr->needs_write_barrier()) {
int offset = Context::SlotOffset(instr->slot_index());
__ RecordWrite(context, offset, value, kScratchRegister);
}
}

32
src/x64/lithium-x64.cc
View File

@ -296,6 +296,13 @@ void LLoadContextSlot::PrintDataTo(StringStream* stream) {
}
void LStoreContextSlot::PrintDataTo(StringStream* stream) {
InputAt(0)->PrintTo(stream);
stream->Add("[%d] <- ", slot_index());
InputAt(1)->PrintTo(stream);
}
void LCallKeyed::PrintDataTo(StringStream* stream) {
stream->Add("[rcx] #%d / ", arity());
}
@ -1679,14 +1686,22 @@ LInstruction* LChunkBuilder::DoStoreGlobal(HStoreGlobal* instr) {
LInstruction* LChunkBuilder::DoLoadContextSlot(HLoadContextSlot* instr) {
Abort("Unimplemented: %s", "DoLoadContextSlot");
return NULL;
LOperand* context = UseRegisterAtStart(instr->value());
return DefineAsRegister(new LLoadContextSlot(context));
}
LInstruction* LChunkBuilder::DoStoreContextSlot(HStoreContextSlot* instr) {
Abort("Unimplemented: DoStoreContextSlot");
return NULL;
LOperand* context;
LOperand* value;
if (instr->NeedsWriteBarrier()) {
context = UseTempRegister(instr->context());
value = UseTempRegister(instr->value());
} else {
context = UseRegister(instr->context());
value = UseRegister(instr->value());
}
return new LStoreContextSlot(context, value);
}
@ -1874,8 +1889,9 @@ LInstruction* LChunkBuilder::DoDeleteProperty(HDeleteProperty* instr) {
LInstruction* LChunkBuilder::DoOsrEntry(HOsrEntry* instr) {
Abort("Unimplemented: %s", "DoOsrEntry");
return NULL;
allocator_->MarkAsOsrEntry();
current_block_->last_environment()->set_ast_id(instr->ast_id());
return AssignEnvironment(new LOsrEntry);
}
@ -1886,8 +1902,8 @@ LInstruction* LChunkBuilder::DoParameter(HParameter* instr) {
LInstruction* LChunkBuilder::DoUnknownOSRValue(HUnknownOSRValue* instr) {
Abort("Unimplemented: %s", "DoUnknownOSRValue");
return NULL;
int spill_index = chunk()->GetNextSpillIndex(false); // Not double-width.
return DefineAsSpilled(new LUnknownOSRValue, spill_index);
}

20
src/x64/lithium-x64.h
View File

@ -141,6 +141,7 @@ class LCodeGen;
V(SmiTag) \
V(SmiUntag) \
V(StackCheck) \
V(StoreContextSlot) \
V(StoreGlobal) \
V(StoreKeyedFastElement) \
V(StoreKeyedGeneric) \
@ -1246,6 +1247,25 @@ class LLoadContextSlot: public LTemplateInstruction<1, 1, 0> {
};
class LStoreContextSlot: public LTemplateInstruction<0, 2, 0> {
public:
LStoreContextSlot(LOperand* context, LOperand* value) {
inputs_[0] = context;
inputs_[1] = value;
}
DECLARE_CONCRETE_INSTRUCTION(StoreContextSlot, "store-context-slot")
DECLARE_HYDROGEN_ACCESSOR(StoreContextSlot)
LOperand* context() { return InputAt(0); }
LOperand* value() { return InputAt(1); }
int slot_index() { return hydrogen()->slot_index(); }
int needs_write_barrier() { return hydrogen()->NeedsWriteBarrier(); }
virtual void PrintDataTo(StringStream* stream);
};
class LPushArgument: public LTemplateInstruction<0, 1, 0> {
public:
explicit LPushArgument(LOperand* value) {