Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(186)

Unified Diff: src/x64/code-stubs-x64.cc

Issue 17229005: Convert UnaryOpStub to a HydrogenCodeStub (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: rebase Created 7 years, 6 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View side-by-side diff with in-line comments
Download patch
« no previous file with comments | « src/x64/code-stubs-x64.h ('k') | src/x64/full-codegen-x64.cc » ('j') | no next file with comments »
Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
Index: src/x64/code-stubs-x64.cc
diff --git a/src/x64/code-stubs-x64.cc b/src/x64/code-stubs-x64.cc
index 9774638d6a6cff0256fd836dbfd3ec694be164c0..279f62c94e05c30fdffab7c17d99a09a0adc1eee 100644
--- a/src/x64/code-stubs-x64.cc
+++ b/src/x64/code-stubs-x64.cc
@@ -222,7 +222,18 @@ void ToBooleanStub::InitializeInterfaceDescriptor(
descriptor->deoptimization_handler_ =
FUNCTION_ADDR(ToBooleanIC_Miss);
descriptor->SetMissHandler(
- ExternalReference(IC_Utility(IC::kToBooleanIC_Miss), isolate));
+ ExternalReference(IC_Utility(IC::kToBooleanIC_Miss), isolate));
+}
+
+
+void UnaryOpStub::InitializeInterfaceDescriptor(
+ Isolate* isolate,
+ CodeStubInterfaceDescriptor* descriptor) {
+ static Register registers[] = { rax };
+ descriptor->register_param_count_ = 1;
+ descriptor->register_params_ = registers;
+ descriptor->deoptimization_handler_ =
+ FUNCTION_ADDR(UnaryOpIC_Miss);
}
@@ -643,259 +654,6 @@ void IntegerConvert(MacroAssembler* masm,
}
-void UnaryOpStub::Generate(MacroAssembler* masm) {
- switch (operand_type_) {
- case UnaryOpIC::UNINITIALIZED:
- GenerateTypeTransition(masm);
- break;
- case UnaryOpIC::SMI:
- GenerateSmiStub(masm);
- break;
- case UnaryOpIC::NUMBER:
- GenerateNumberStub(masm);
- break;
- case UnaryOpIC::GENERIC:
- GenerateGenericStub(masm);
- break;
- }
-}
-
-
-void UnaryOpStub::GenerateTypeTransition(MacroAssembler* masm) {
- __ pop(rcx); // Save return address.
-
- __ push(rax); // the operand
- __ Push(Smi::FromInt(op_));
- __ Push(Smi::FromInt(mode_));
- __ Push(Smi::FromInt(operand_type_));
-
- __ push(rcx); // Push return address.
-
- // Patch the caller to an appropriate specialized stub and return the
- // operation result to the caller of the stub.
- __ TailCallExternalReference(
- ExternalReference(IC_Utility(IC::kUnaryOp_Patch), masm->isolate()), 4, 1);
-}
-
-
-// TODO(svenpanne): Use virtual functions instead of switch.
-void UnaryOpStub::GenerateSmiStub(MacroAssembler* masm) {
- switch (op_) {
- case Token::SUB:
- GenerateSmiStubSub(masm);
- break;
- case Token::BIT_NOT:
- GenerateSmiStubBitNot(masm);
- break;
- default:
- UNREACHABLE();
- }
-}
-
-
-void UnaryOpStub::GenerateSmiStubSub(MacroAssembler* masm) {
- Label slow;
- GenerateSmiCodeSub(masm, &slow, &slow, Label::kNear, Label::kNear);
- __ bind(&slow);
- GenerateTypeTransition(masm);
-}
-
-
-void UnaryOpStub::GenerateSmiStubBitNot(MacroAssembler* masm) {
- Label non_smi;
- GenerateSmiCodeBitNot(masm, &non_smi, Label::kNear);
- __ bind(&non_smi);
- GenerateTypeTransition(masm);
-}
-
-
-void UnaryOpStub::GenerateSmiCodeSub(MacroAssembler* masm,
- Label* non_smi,
- Label* slow,
- Label::Distance non_smi_near,
- Label::Distance slow_near) {
- Label done;
- __ JumpIfNotSmi(rax, non_smi, non_smi_near);
- __ SmiNeg(rax, rax, &done, Label::kNear);
- __ jmp(slow, slow_near);
- __ bind(&done);
- __ ret(0);
-}
-
-
-void UnaryOpStub::GenerateSmiCodeBitNot(MacroAssembler* masm,
- Label* non_smi,
- Label::Distance non_smi_near) {
- __ JumpIfNotSmi(rax, non_smi, non_smi_near);
- __ SmiNot(rax, rax);
- __ ret(0);
-}
-
-
-// TODO(svenpanne): Use virtual functions instead of switch.
-void UnaryOpStub::GenerateNumberStub(MacroAssembler* masm) {
- switch (op_) {
- case Token::SUB:
- GenerateNumberStubSub(masm);
- break;
- case Token::BIT_NOT:
- GenerateNumberStubBitNot(masm);
- break;
- default:
- UNREACHABLE();
- }
-}
-
-
-void UnaryOpStub::GenerateNumberStubSub(MacroAssembler* masm) {
- Label non_smi, slow, call_builtin;
- GenerateSmiCodeSub(masm, &non_smi, &call_builtin, Label::kNear);
- __ bind(&non_smi);
- GenerateHeapNumberCodeSub(masm, &slow);
- __ bind(&slow);
- GenerateTypeTransition(masm);
- __ bind(&call_builtin);
- GenerateGenericCodeFallback(masm);
-}
-
-
-void UnaryOpStub::GenerateNumberStubBitNot(
- MacroAssembler* masm) {
- Label non_smi, slow;
- GenerateSmiCodeBitNot(masm, &non_smi, Label::kNear);
- __ bind(&non_smi);
- GenerateHeapNumberCodeBitNot(masm, &slow);
- __ bind(&slow);
- GenerateTypeTransition(masm);
-}
-
-
-void UnaryOpStub::GenerateHeapNumberCodeSub(MacroAssembler* masm,
- Label* slow) {
- // Check if the operand is a heap number.
- __ CompareRoot(FieldOperand(rax, HeapObject::kMapOffset),
- Heap::kHeapNumberMapRootIndex);
- __ j(not_equal, slow);
-
- // Operand is a float, negate its value by flipping the sign bit.
- if (mode_ == UNARY_OVERWRITE) {
- __ Set(kScratchRegister, 0x01);
- __ shl(kScratchRegister, Immediate(63));
- __ xor_(FieldOperand(rax, HeapNumber::kValueOffset), kScratchRegister);
- } else {
- // Allocate a heap number before calculating the answer,
- // so we don't have an untagged double around during GC.
- Label slow_allocate_heapnumber, heapnumber_allocated;
- __ AllocateHeapNumber(rcx, rbx, &slow_allocate_heapnumber);
- __ jmp(&heapnumber_allocated);
-
- __ bind(&slow_allocate_heapnumber);
- {
- FrameScope scope(masm, StackFrame::INTERNAL);
- __ push(rax);
- __ CallRuntime(Runtime::kNumberAlloc, 0);
- __ movq(rcx, rax);
- __ pop(rax);
- }
- __ bind(&heapnumber_allocated);
- // rcx: allocated 'empty' number
-
- // Copy the double value to the new heap number, flipping the sign.
- __ movq(rdx, FieldOperand(rax, HeapNumber::kValueOffset));
- __ Set(kScratchRegister, 0x01);
- __ shl(kScratchRegister, Immediate(63));
- __ xor_(rdx, kScratchRegister); // Flip sign.
- __ movq(FieldOperand(rcx, HeapNumber::kValueOffset), rdx);
- __ movq(rax, rcx);
- }
- __ ret(0);
-}
-
-
-void UnaryOpStub::GenerateHeapNumberCodeBitNot(MacroAssembler* masm,
- Label* slow) {
- // Check if the operand is a heap number.
- __ CompareRoot(FieldOperand(rax, HeapObject::kMapOffset),
- Heap::kHeapNumberMapRootIndex);
- __ j(not_equal, slow);
-
- // Convert the heap number in rax to an untagged integer in rcx.
- IntegerConvert(masm, rax, rax);
-
- // Do the bitwise operation and smi tag the result.
- __ notl(rax);
- __ Integer32ToSmi(rax, rax);
- __ ret(0);
-}
-
-
-// TODO(svenpanne): Use virtual functions instead of switch.
-void UnaryOpStub::GenerateGenericStub(MacroAssembler* masm) {
- switch (op_) {
- case Token::SUB:
- GenerateGenericStubSub(masm);
- break;
- case Token::BIT_NOT:
- GenerateGenericStubBitNot(masm);
- break;
- default:
- UNREACHABLE();
- }
-}
-
-
-void UnaryOpStub::GenerateGenericStubSub(MacroAssembler* masm) {
- Label non_smi, slow;
- GenerateSmiCodeSub(masm, &non_smi, &slow, Label::kNear);
- __ bind(&non_smi);
- GenerateHeapNumberCodeSub(masm, &slow);
- __ bind(&slow);
- GenerateGenericCodeFallback(masm);
-}
-
-
-void UnaryOpStub::GenerateGenericStubBitNot(MacroAssembler* masm) {
- Label non_smi, slow;
- GenerateSmiCodeBitNot(masm, &non_smi, Label::kNear);
- __ bind(&non_smi);
- GenerateHeapNumberCodeBitNot(masm, &slow);
- __ bind(&slow);
- GenerateGenericCodeFallback(masm);
-}
-
-
-void UnaryOpStub::GenerateGenericCodeFallback(MacroAssembler* masm) {
- // Handle the slow case by jumping to the JavaScript builtin.
- __ pop(rcx); // pop return address
- __ push(rax);
- __ push(rcx); // push return address
- switch (op_) {
- case Token::SUB:
- __ InvokeBuiltin(Builtins::UNARY_MINUS, JUMP_FUNCTION);
- break;
- case Token::BIT_NOT:
- __ InvokeBuiltin(Builtins::BIT_NOT, JUMP_FUNCTION);
- break;
- default:
- UNREACHABLE();
- }
-}
-
-
-void UnaryOpStub::PrintName(StringStream* stream) {
- const char* op_name = Token::Name(op_);
- const char* overwrite_name = NULL; // Make g++ happy.
- switch (mode_) {
- case UNARY_NO_OVERWRITE: overwrite_name = "Alloc"; break;
- case UNARY_OVERWRITE: overwrite_name = "Overwrite"; break;
- }
- stream->Add("UnaryOpStub_%s_%s_%s",
- op_name,
- overwrite_name,
- UnaryOpIC::GetName(operand_type_));
-}
-
-
void BinaryOpStub::Initialize() {}
« no previous file with comments | « src/x64/code-stubs-x64.h ('k') | src/x64/full-codegen-x64.cc » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698