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Remove much of the register allocation overhead from ARM. When

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registers are required for calls, explicitly construct a Result with
the needed register rather than allocating it.  For returns from
calls, let the return value in r0 be implicit rather than explicitly
allocated.

Review URL: http://codereview.chromium.org/164316

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2659 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
kmillikin@chromium.org 2009-08-11 11:46:27 +00:00
parent 9024b946e7
commit d1f846cb2b
3 changed files with 109 additions and 152 deletions
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125
src/arm/codegen-arm.cc
View File

@ -1036,11 +1036,7 @@ void CodeGenerator::Comparison(Condition cc,
// We call with 0 args because there are 0 on the stack. // We call with 0 args because there are 0 on the stack.
CompareStub stub(cc, strict); CompareStub stub(cc, strict);
frame_->CallStub(&stub, 0); frame_->CallStub(&stub, 0);
__ cmp(r0, Operand(0));
Result result = allocator_->Allocate(r0);
ASSERT(result.is_valid());
__ cmp(result.reg(), Operand(0));
result.Unuse();
exit.Jump(); exit.Jump();
// Do smi comparisons by pointer comparison. // Do smi comparisons by pointer comparison.
@ -1749,9 +1745,8 @@ void CodeGenerator::VisitForInStatement(ForInStatement* node) {
primitive.Bind(); primitive.Bind();
frame_->EmitPush(r0); frame_->EmitPush(r0);
Result arg_count = allocator_->Allocate(r0); Result arg_count(r0);
ASSERT(arg_count.is_valid()); __ mov(r0, Operand(0));
__ mov(arg_count.reg(), Operand(0));
frame_->InvokeBuiltin(Builtins::TO_OBJECT, CALL_JS, &arg_count, 1); frame_->InvokeBuiltin(Builtins::TO_OBJECT, CALL_JS, &arg_count, 1);
jsobject.Bind(); jsobject.Bind();
@ -1832,15 +1827,10 @@ void CodeGenerator::VisitForInStatement(ForInStatement* node) {
__ ldr(r0, frame_->ElementAt(4)); // push enumerable __ ldr(r0, frame_->ElementAt(4)); // push enumerable
frame_->EmitPush(r0); frame_->EmitPush(r0);
frame_->EmitPush(r3); // push entry frame_->EmitPush(r3); // push entry
Result arg_count_register = allocator_->Allocate(r0); Result arg_count_reg(r0);
ASSERT(arg_count_register.is_valid()); __ mov(r0, Operand(1));
__ mov(arg_count_register.reg(), Operand(1)); frame_->InvokeBuiltin(Builtins::FILTER_KEY, CALL_JS, &arg_count_reg, 2);
Result result = frame_->InvokeBuiltin(Builtins::FILTER_KEY, __ mov(r3, Operand(r0));
CALL_JS,
&arg_count_register,
2);
__ mov(r3, Operand(result.reg()));
result.Unuse();
// If the property has been removed while iterating, we just skip it. // If the property has been removed while iterating, we just skip it.
__ cmp(r3, Operand(Factory::null_value())); __ cmp(r3, Operand(Factory::null_value()));
@ -2433,9 +2423,8 @@ void CodeGenerator::LoadFromGlobalSlotCheckExtensions(Slot* slot,
// Load the global object. // Load the global object.
LoadGlobal(); LoadGlobal();
// Setup the name register. // Setup the name register.
Result name = allocator_->Allocate(r2); Result name(r2);
ASSERT(name.is_valid()); // We are in spilled code. __ mov(r2, Operand(slot->var()->name()));
__ mov(name.reg(), Operand(slot->var()->name()));
// Call IC stub. // Call IC stub.
if (typeof_state == INSIDE_TYPEOF) { if (typeof_state == INSIDE_TYPEOF) {
frame_->CallCodeObject(ic, RelocInfo::CODE_TARGET, &name, 0); frame_->CallCodeObject(ic, RelocInfo::CODE_TARGET, &name, 0);
@ -2775,9 +2764,8 @@ void CodeGenerator::VisitCatchExtensionObject(CatchExtensionObject* node) {
Comment cmnt(masm_, "[ CatchExtensionObject"); Comment cmnt(masm_, "[ CatchExtensionObject");
LoadAndSpill(node->key()); LoadAndSpill(node->key());
LoadAndSpill(node->value()); LoadAndSpill(node->value());
Result result =
frame_->CallRuntime(Runtime::kCreateCatchExtensionObject, 2); frame_->CallRuntime(Runtime::kCreateCatchExtensionObject, 2);
frame_->EmitPush(result.reg()); frame_->EmitPush(r0);
ASSERT(frame_->height() == original_height + 1); ASSERT(frame_->height() == original_height + 1);
} }
@ -3117,20 +3105,18 @@ void CodeGenerator::VisitCallNew(CallNew* node) {
} }
// r0: the number of arguments. // r0: the number of arguments.
Result num_args = allocator_->Allocate(r0); Result num_args(r0);
ASSERT(num_args.is_valid()); __ mov(r0, Operand(arg_count));
__ mov(num_args.reg(), Operand(arg_count));
// Load the function into r1 as per calling convention. // Load the function into r1 as per calling convention.
Result function = allocator_->Allocate(r1); Result function(r1);
ASSERT(function.is_valid()); __ ldr(r1, frame_->ElementAt(arg_count + 1));
__ ldr(function.reg(), frame_->ElementAt(arg_count + 1));
// Call the construct call builtin that handles allocation and // Call the construct call builtin that handles allocation and
// constructor invocation. // constructor invocation.
CodeForSourcePosition(node->position()); CodeForSourcePosition(node->position());
Handle<Code> ic(Builtins::builtin(Builtins::JSConstructCall)); Handle<Code> ic(Builtins::builtin(Builtins::JSConstructCall));
Result result = frame_->CallCodeObject(ic, frame_->CallCodeObject(ic,
RelocInfo::CONSTRUCT_CALL, RelocInfo::CONSTRUCT_CALL,
&num_args, &num_args,
&function, &function,
@ -3477,9 +3463,8 @@ void CodeGenerator::VisitUnaryOperation(UnaryOperation* node) {
if (property != NULL) { if (property != NULL) {
LoadAndSpill(property->obj()); LoadAndSpill(property->obj());
LoadAndSpill(property->key()); LoadAndSpill(property->key());
Result arg_count = allocator_->Allocate(r0); Result arg_count(r0);
ASSERT(arg_count.is_valid()); __ mov(r0, Operand(1)); // not counting receiver
__ mov(arg_count.reg(), Operand(1)); // not counting receiver
frame_->InvokeBuiltin(Builtins::DELETE, CALL_JS, &arg_count, 2); frame_->InvokeBuiltin(Builtins::DELETE, CALL_JS, &arg_count, 2);
} else if (variable != NULL) { } else if (variable != NULL) {
@ -3488,9 +3473,8 @@ void CodeGenerator::VisitUnaryOperation(UnaryOperation* node) {
LoadGlobal(); LoadGlobal();
__ mov(r0, Operand(variable->name())); __ mov(r0, Operand(variable->name()));
frame_->EmitPush(r0); frame_->EmitPush(r0);
Result arg_count = allocator_->Allocate(r0); Result arg_count(r0);
ASSERT(arg_count.is_valid()); __ mov(r0, Operand(1)); // not counting receiver
__ mov(arg_count.reg(), Operand(1)); // not counting receiver
frame_->InvokeBuiltin(Builtins::DELETE, CALL_JS, &arg_count, 2); frame_->InvokeBuiltin(Builtins::DELETE, CALL_JS, &arg_count, 2);
} else if (slot != NULL && slot->type() == Slot::LOOKUP) { } else if (slot != NULL && slot->type() == Slot::LOOKUP) {
@ -3503,9 +3487,8 @@ void CodeGenerator::VisitUnaryOperation(UnaryOperation* node) {
frame_->EmitPush(r0); frame_->EmitPush(r0);
__ mov(r0, Operand(variable->name())); __ mov(r0, Operand(variable->name()));
frame_->EmitPush(r0); frame_->EmitPush(r0);
Result arg_count = allocator_->Allocate(r0); Result arg_count(r0);
ASSERT(arg_count.is_valid()); __ mov(r0, Operand(1)); // not counting receiver
__ mov(arg_count.reg(), Operand(1)); // not counting receiver
frame_->InvokeBuiltin(Builtins::DELETE, CALL_JS, &arg_count, 2); frame_->InvokeBuiltin(Builtins::DELETE, CALL_JS, &arg_count, 2);
} else { } else {
@ -3556,9 +3539,8 @@ void CodeGenerator::VisitUnaryOperation(UnaryOperation* node) {
smi_label.Branch(eq); smi_label.Branch(eq);
frame_->EmitPush(r0); frame_->EmitPush(r0);
Result arg_count = allocator_->Allocate(r0); Result arg_count(r0);
ASSERT(arg_count.is_valid()); __ mov(r0, Operand(0)); // not counting receiver
__ mov(arg_count.reg(), Operand(0)); // not counting receiver
frame_->InvokeBuiltin(Builtins::BIT_NOT, CALL_JS, &arg_count, 1); frame_->InvokeBuiltin(Builtins::BIT_NOT, CALL_JS, &arg_count, 1);
continue_label.Jump(); continue_label.Jump();
@ -3581,9 +3563,8 @@ void CodeGenerator::VisitUnaryOperation(UnaryOperation* node) {
__ tst(r0, Operand(kSmiTagMask)); __ tst(r0, Operand(kSmiTagMask));
continue_label.Branch(eq); continue_label.Branch(eq);
frame_->EmitPush(r0); frame_->EmitPush(r0);
Result arg_count = allocator_->Allocate(r0); Result arg_count(r0);
ASSERT(arg_count.is_valid()); __ mov(r0, Operand(0)); // not counting receiver
__ mov(arg_count.reg(), Operand(0)); // not counting receiver
frame_->InvokeBuiltin(Builtins::TO_NUMBER, CALL_JS, &arg_count, 1); frame_->InvokeBuiltin(Builtins::TO_NUMBER, CALL_JS, &arg_count, 1);
continue_label.Bind(); continue_label.Bind();
break; break;
@ -3669,9 +3650,8 @@ void CodeGenerator::VisitCountOperation(CountOperation* node) {
{ {
// Convert the operand to a number. // Convert the operand to a number.
frame_->EmitPush(r0); frame_->EmitPush(r0);
Result arg_count = allocator_->Allocate(r0); Result arg_count(r0);
ASSERT(arg_count.is_valid()); __ mov(r0, Operand(0));
__ mov(arg_count.reg(), Operand(0));
frame_->InvokeBuiltin(Builtins::TO_NUMBER, CALL_JS, &arg_count, 1); frame_->InvokeBuiltin(Builtins::TO_NUMBER, CALL_JS, &arg_count, 1);
} }
if (is_postfix) { if (is_postfix) {
@ -4048,14 +4028,10 @@ void CodeGenerator::VisitCompareOperation(CompareOperation* node) {
case Token::IN: { case Token::IN: {
LoadAndSpill(left); LoadAndSpill(left);
LoadAndSpill(right); LoadAndSpill(right);
Result arg_count = allocator_->Allocate(r0); Result arg_count(r0);
ASSERT(arg_count.is_valid()); __ mov(r0, Operand(1)); // not counting receiver
__ mov(arg_count.reg(), Operand(1)); // not counting receiver frame_->InvokeBuiltin(Builtins::IN, CALL_JS, &arg_count, 2);
Result result = frame_->InvokeBuiltin(Builtins::IN, frame_->EmitPush(r0);
CALL_JS,
&arg_count,
2);
frame_->EmitPush(result.reg());
break; break;
} }
@ -4063,9 +4039,9 @@ void CodeGenerator::VisitCompareOperation(CompareOperation* node) {
LoadAndSpill(left); LoadAndSpill(left);
LoadAndSpill(right); LoadAndSpill(right);
InstanceofStub stub; InstanceofStub stub;
Result result = frame_->CallStub(&stub, 2); frame_->CallStub(&stub, 2);
// At this point if instanceof succeeded then r0 == 0. // At this point if instanceof succeeded then r0 == 0.
__ tst(result.reg(), Operand(result.reg())); __ tst(r0, Operand(r0));
cc_reg_ = eq; cc_reg_ = eq;
break; break;
} }
@ -4135,15 +4111,14 @@ void Reference::GetValue(TypeofState typeof_state) {
Variable* var = expression_->AsVariableProxy()->AsVariable(); Variable* var = expression_->AsVariableProxy()->AsVariable();
Handle<Code> ic(Builtins::builtin(Builtins::LoadIC_Initialize)); Handle<Code> ic(Builtins::builtin(Builtins::LoadIC_Initialize));
// Setup the name register. // Setup the name register.
Result name_reg = cgen_->allocator()->Allocate(r2); Result name_reg(r2);
ASSERT(name_reg.is_valid()); __ mov(r2, Operand(name));
__ mov(name_reg.reg(), Operand(name));
ASSERT(var == NULL || var->is_global()); ASSERT(var == NULL || var->is_global());
RelocInfo::Mode rmode = (var == NULL) RelocInfo::Mode rmode = (var == NULL)
? RelocInfo::CODE_TARGET ? RelocInfo::CODE_TARGET
: RelocInfo::CODE_TARGET_CONTEXT; : RelocInfo::CODE_TARGET_CONTEXT;
Result answer = frame->CallCodeObject(ic, rmode, &name_reg, 0); frame->CallCodeObject(ic, rmode, &name_reg, 0);
frame->EmitPush(answer.reg()); frame->EmitPush(r0);
break; break;
} }
@ -4162,8 +4137,8 @@ void Reference::GetValue(TypeofState typeof_state) {
RelocInfo::Mode rmode = (var == NULL) RelocInfo::Mode rmode = (var == NULL)
? RelocInfo::CODE_TARGET ? RelocInfo::CODE_TARGET
: RelocInfo::CODE_TARGET_CONTEXT; : RelocInfo::CODE_TARGET_CONTEXT;
Result answer = frame->CallCodeObject(ic, rmode, 0); frame->CallCodeObject(ic, rmode, 0);
frame->EmitPush(answer.reg()); frame->EmitPush(r0);
break; break;
} }
@ -4272,20 +4247,18 @@ void Reference::SetValue(InitState init_state) {
Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Initialize)); Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Initialize));
Handle<String> name(GetName()); Handle<String> name(GetName());
Result value = cgen_->allocator()->Allocate(r0); Result value(r0);
ASSERT(value.is_valid()); frame->EmitPop(r0);
frame->EmitPop(value.reg());
// Setup the name register. // Setup the name register.
Result property_name = cgen_->allocator()->Allocate(r2); Result property_name(r2);
ASSERT(property_name.is_valid()); __ mov(r2, Operand(name));
__ mov(property_name.reg(), Operand(name)); frame->CallCodeObject(ic,
Result answer = frame->CallCodeObject(ic,
RelocInfo::CODE_TARGET, RelocInfo::CODE_TARGET,
&value, &value,
&property_name, &property_name,
0); 0);
frame->EmitPush(answer.reg()); frame->EmitPush(r0);
break; break;
} }
@ -4298,12 +4271,10 @@ void Reference::SetValue(InitState init_state) {
// Call IC code. // Call IC code.
Handle<Code> ic(Builtins::builtin(Builtins::KeyedStoreIC_Initialize)); Handle<Code> ic(Builtins::builtin(Builtins::KeyedStoreIC_Initialize));
// TODO(1222589): Make the IC grab the values from the stack. // TODO(1222589): Make the IC grab the values from the stack.
Result value = cgen_->allocator()->Allocate(r0); Result value(r0);
ASSERT(value.is_valid()); frame->EmitPop(r0); // value
frame->EmitPop(value.reg()); // value
Result result =
frame->CallCodeObject(ic, RelocInfo::CODE_TARGET, &value, 0); frame->CallCodeObject(ic, RelocInfo::CODE_TARGET, &value, 0);
frame->EmitPush(result.reg()); frame->EmitPush(r0);
break; break;
} }

44
src/arm/virtual-frame-arm.cc
View File

@ -186,51 +186,42 @@ void VirtualFrame::PushTryHandler(HandlerType type) {
} }
Result VirtualFrame::RawCallStub(CodeStub* stub) { void VirtualFrame::RawCallStub(CodeStub* stub) {
ASSERT(cgen()->HasValidEntryRegisters()); ASSERT(cgen()->HasValidEntryRegisters());
__ CallStub(stub); __ CallStub(stub);
Result result = cgen()->allocator()->Allocate(r0);
ASSERT(result.is_valid());
return result;
} }
Result VirtualFrame::CallStub(CodeStub* stub, Result* arg) { void VirtualFrame::CallStub(CodeStub* stub, Result* arg) {
PrepareForCall(0, 0); PrepareForCall(0, 0);
arg->Unuse(); arg->Unuse();
return RawCallStub(stub); RawCallStub(stub);
} }
Result VirtualFrame::CallStub(CodeStub* stub, Result* arg0, Result* arg1) { void VirtualFrame::CallStub(CodeStub* stub, Result* arg0, Result* arg1) {
PrepareForCall(0, 0); PrepareForCall(0, 0);
arg0->Unuse(); arg0->Unuse();
arg1->Unuse(); arg1->Unuse();
return RawCallStub(stub); RawCallStub(stub);
} }
Result VirtualFrame::CallRuntime(Runtime::Function* f, int arg_count) { void VirtualFrame::CallRuntime(Runtime::Function* f, int arg_count) {
PrepareForCall(arg_count, arg_count); PrepareForCall(arg_count, arg_count);
ASSERT(cgen()->HasValidEntryRegisters()); ASSERT(cgen()->HasValidEntryRegisters());
__ CallRuntime(f, arg_count); __ CallRuntime(f, arg_count);
Result result = cgen()->allocator()->Allocate(r0);
ASSERT(result.is_valid());
return result;
} }
Result VirtualFrame::CallRuntime(Runtime::FunctionId id, int arg_count) { void VirtualFrame::CallRuntime(Runtime::FunctionId id, int arg_count) {
PrepareForCall(arg_count, arg_count); PrepareForCall(arg_count, arg_count);
ASSERT(cgen()->HasValidEntryRegisters()); ASSERT(cgen()->HasValidEntryRegisters());
__ CallRuntime(id, arg_count); __ CallRuntime(id, arg_count);
Result result = cgen()->allocator()->Allocate(r0);
ASSERT(result.is_valid());
return result;
} }
Result VirtualFrame::InvokeBuiltin(Builtins::JavaScript id, void VirtualFrame::InvokeBuiltin(Builtins::JavaScript id,
InvokeJSFlags flags, InvokeJSFlags flags,
Result* arg_count_register, Result* arg_count_register,
int arg_count) { int arg_count) {
@ -238,22 +229,17 @@ Result VirtualFrame::InvokeBuiltin(Builtins::JavaScript id,
PrepareForCall(arg_count, arg_count); PrepareForCall(arg_count, arg_count);
arg_count_register->Unuse(); arg_count_register->Unuse();
__ InvokeBuiltin(id, flags); __ InvokeBuiltin(id, flags);
Result result = cgen()->allocator()->Allocate(r0);
return result;
} }
Result VirtualFrame::RawCallCodeObject(Handle<Code> code, void VirtualFrame::RawCallCodeObject(Handle<Code> code,
RelocInfo::Mode rmode) { RelocInfo::Mode rmode) {
ASSERT(cgen()->HasValidEntryRegisters()); ASSERT(cgen()->HasValidEntryRegisters());
__ Call(code, rmode); __ Call(code, rmode);
Result result = cgen()->allocator()->Allocate(r0);
ASSERT(result.is_valid());
return result;
} }
Result VirtualFrame::CallCodeObject(Handle<Code> code, void VirtualFrame::CallCodeObject(Handle<Code> code,
RelocInfo::Mode rmode, RelocInfo::Mode rmode,
int dropped_args) { int dropped_args) {
int spilled_args = 0; int spilled_args = 0;
@ -276,11 +262,11 @@ Result VirtualFrame::CallCodeObject(Handle<Code> code,
break; break;
} }
PrepareForCall(spilled_args, dropped_args); PrepareForCall(spilled_args, dropped_args);
return RawCallCodeObject(code, rmode); RawCallCodeObject(code, rmode);
} }
Result VirtualFrame::CallCodeObject(Handle<Code> code, void VirtualFrame::CallCodeObject(Handle<Code> code,
RelocInfo::Mode rmode, RelocInfo::Mode rmode,
Result* arg, Result* arg,
int dropped_args) { int dropped_args) {
@ -304,11 +290,11 @@ Result VirtualFrame::CallCodeObject(Handle<Code> code,
} }
PrepareForCall(spilled_args, dropped_args); PrepareForCall(spilled_args, dropped_args);
arg->Unuse(); arg->Unuse();
return RawCallCodeObject(code, rmode); RawCallCodeObject(code, rmode);
} }
Result VirtualFrame::CallCodeObject(Handle<Code> code, void VirtualFrame::CallCodeObject(Handle<Code> code,
RelocInfo::Mode rmode, RelocInfo::Mode rmode,
Result* arg0, Result* arg0,
Result* arg1, Result* arg1,
@ -336,7 +322,7 @@ Result VirtualFrame::CallCodeObject(Handle<Code> code,
PrepareForCall(spilled_args, dropped_args); PrepareForCall(spilled_args, dropped_args);
arg0->Unuse(); arg0->Unuse();
arg1->Unuse(); arg1->Unuse();
return RawCallCodeObject(code, rmode); RawCallCodeObject(code, rmode);
} }

24
src/arm/virtual-frame-arm.h
View File

@ -283,27 +283,27 @@ class VirtualFrame : public ZoneObject {
// Call stub given the number of arguments it expects on (and // Call stub given the number of arguments it expects on (and
// removes from) the stack. // removes from) the stack.
Result CallStub(CodeStub* stub, int arg_count) { void CallStub(CodeStub* stub, int arg_count) {
PrepareForCall(arg_count, arg_count); PrepareForCall(arg_count, arg_count);
return RawCallStub(stub); RawCallStub(stub);
} }
// Call stub that expects its argument in r0. The argument is given // Call stub that expects its argument in r0. The argument is given
// as a result which must be the register r0. // as a result which must be the register r0.
Result CallStub(CodeStub* stub, Result* arg); void CallStub(CodeStub* stub, Result* arg);
// Call stub that expects its arguments in r1 and r0. The arguments // Call stub that expects its arguments in r1 and r0. The arguments
// are given as results which must be the appropriate registers. // are given as results which must be the appropriate registers.
Result CallStub(CodeStub* stub, Result* arg0, Result* arg1); void CallStub(CodeStub* stub, Result* arg0, Result* arg1);
// Call runtime given the number of arguments expected on (and // Call runtime given the number of arguments expected on (and
// removed from) the stack. // removed from) the stack.
Result CallRuntime(Runtime::Function* f, int arg_count); void CallRuntime(Runtime::Function* f, int arg_count);
Result CallRuntime(Runtime::FunctionId id, int arg_count); void CallRuntime(Runtime::FunctionId id, int arg_count);
// Invoke builtin given the number of arguments it expects on (and // Invoke builtin given the number of arguments it expects on (and
// removes from) the stack. // removes from) the stack.
Result InvokeBuiltin(Builtins::JavaScript id, void InvokeBuiltin(Builtins::JavaScript id,
InvokeJSFlags flag, InvokeJSFlags flag,
Result* arg_count_register, Result* arg_count_register,
int arg_count); int arg_count);
@ -311,14 +311,14 @@ class VirtualFrame : public ZoneObject {
// Call into an IC stub given the number of arguments it removes // Call into an IC stub given the number of arguments it removes
// from the stack. Register arguments are passed as results and // from the stack. Register arguments are passed as results and
// consumed by the call. // consumed by the call.
Result CallCodeObject(Handle<Code> ic, void CallCodeObject(Handle<Code> ic,
RelocInfo::Mode rmode, RelocInfo::Mode rmode,
int dropped_args); int dropped_args);
Result CallCodeObject(Handle<Code> ic, void CallCodeObject(Handle<Code> ic,
RelocInfo::Mode rmode, RelocInfo::Mode rmode,
Result* arg, Result* arg,
int dropped_args); int dropped_args);
Result CallCodeObject(Handle<Code> ic, void CallCodeObject(Handle<Code> ic,
RelocInfo::Mode rmode, RelocInfo::Mode rmode,
Result* arg0, Result* arg0,
Result* arg1, Result* arg1,
@ -506,11 +506,11 @@ class VirtualFrame : public ZoneObject {
// Call a code stub that has already been prepared for calling (via // Call a code stub that has already been prepared for calling (via
// PrepareForCall). // PrepareForCall).
Result RawCallStub(CodeStub* stub); void RawCallStub(CodeStub* stub);
// Calls a code object which has already been prepared for calling // Calls a code object which has already been prepared for calling
// (via PrepareForCall). // (via PrepareForCall).
Result RawCallCodeObject(Handle<Code> code, RelocInfo::Mode rmode); void RawCallCodeObject(Handle<Code> code, RelocInfo::Mode rmode);
bool Equals(VirtualFrame* other); bool Equals(VirtualFrame* other);