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Issue 212163004: Hide some runtime functions. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 6 years, 8 months ago
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1 // Copyright 2012 the V8 project authors. All rights reserved.7 1 // Copyright 2012 the V8 project authors. All rights reserved.7
2 // Redistribution and use in source and binary forms, with or without 2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are 3 // modification, are permitted provided that the following conditions are
4 // met: 4 // met:
5 // 5 //
6 // * Redistributions of source code must retain the above copyright 6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer. 7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above 8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following 9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided 10 // disclaimer in the documentation and/or other materials provided
(...skipping 189 matching lines...) Expand 10 before | Expand all | Expand 10 after
200 // Possibly allocate a local context. 200 // Possibly allocate a local context.
201 int heap_slots = info()->num_heap_slots() - Context::MIN_CONTEXT_SLOTS; 201 int heap_slots = info()->num_heap_slots() - Context::MIN_CONTEXT_SLOTS;
202 if (heap_slots > 0) { 202 if (heap_slots > 0) {
203 Comment(";;; Allocate local context"); 203 Comment(";;; Allocate local context");
204 // Argument to NewContext is the function, which is in a1. 204 // Argument to NewContext is the function, which is in a1.
205 if (heap_slots <= FastNewContextStub::kMaximumSlots) { 205 if (heap_slots <= FastNewContextStub::kMaximumSlots) {
206 FastNewContextStub stub(heap_slots); 206 FastNewContextStub stub(heap_slots);
207 __ CallStub(&stub); 207 __ CallStub(&stub);
208 } else { 208 } else {
209 __ push(a1); 209 __ push(a1);
210 __ CallRuntime(Runtime::kNewFunctionContext, 1); 210 __ CallRuntime(Runtime::kHiddenNewFunctionContext, 1);
211 } 211 }
212 RecordSafepoint(Safepoint::kNoLazyDeopt); 212 RecordSafepoint(Safepoint::kNoLazyDeopt);
213 // Context is returned in both v0. It replaces the context passed to us. 213 // Context is returned in both v0. It replaces the context passed to us.
214 // It's saved in the stack and kept live in cp. 214 // It's saved in the stack and kept live in cp.
215 __ mov(cp, v0); 215 __ mov(cp, v0);
216 __ sw(v0, MemOperand(fp, StandardFrameConstants::kContextOffset)); 216 __ sw(v0, MemOperand(fp, StandardFrameConstants::kContextOffset));
217 // Copy any necessary parameters into the context. 217 // Copy any necessary parameters into the context.
218 int num_parameters = scope()->num_parameters(); 218 int num_parameters = scope()->num_parameters();
219 for (int i = 0; i < num_parameters; i++) { 219 for (int i = 0; i < num_parameters; i++) {
220 Variable* var = scope()->parameter(i); 220 Variable* var = scope()->parameter(i);
(...skipping 3271 matching lines...) Expand 10 before | Expand all | Expand 10 after
3492 } 3492 }
3493 } 3493 }
3494 3494
3495 3495
3496 void LCodeGen::DoDeclareGlobals(LDeclareGlobals* instr) { 3496 void LCodeGen::DoDeclareGlobals(LDeclareGlobals* instr) {
3497 ASSERT(ToRegister(instr->context()).is(cp)); 3497 ASSERT(ToRegister(instr->context()).is(cp));
3498 __ li(scratch0(), instr->hydrogen()->pairs()); 3498 __ li(scratch0(), instr->hydrogen()->pairs());
3499 __ li(scratch1(), Operand(Smi::FromInt(instr->hydrogen()->flags()))); 3499 __ li(scratch1(), Operand(Smi::FromInt(instr->hydrogen()->flags())));
3500 // The context is the first argument. 3500 // The context is the first argument.
3501 __ Push(cp, scratch0(), scratch1()); 3501 __ Push(cp, scratch0(), scratch1());
3502 CallRuntime(Runtime::kDeclareGlobals, 3, instr); 3502 CallRuntime(Runtime::kHiddenDeclareGlobals, 3, instr);
3503 } 3503 }
3504 3504
3505 3505
3506 void LCodeGen::CallKnownFunction(Handle<JSFunction> function, 3506 void LCodeGen::CallKnownFunction(Handle<JSFunction> function,
3507 int formal_parameter_count, 3507 int formal_parameter_count,
3508 int arity, 3508 int arity,
3509 LInstruction* instr, 3509 LInstruction* instr,
3510 A1State a1_state) { 3510 A1State a1_state) {
3511 bool dont_adapt_arguments = 3511 bool dont_adapt_arguments =
3512 formal_parameter_count == SharedFunctionInfo::kDontAdaptArgumentsSentinel; 3512 formal_parameter_count == SharedFunctionInfo::kDontAdaptArgumentsSentinel;
(...skipping 68 matching lines...) Expand 10 before | Expand all | Expand 10 after
3581 // exponent: floating point exponent value. 3581 // exponent: floating point exponent value.
3582 3582
3583 Label allocated, slow; 3583 Label allocated, slow;
3584 __ LoadRoot(tmp4, Heap::kHeapNumberMapRootIndex); 3584 __ LoadRoot(tmp4, Heap::kHeapNumberMapRootIndex);
3585 __ AllocateHeapNumber(tmp1, tmp2, tmp3, tmp4, &slow); 3585 __ AllocateHeapNumber(tmp1, tmp2, tmp3, tmp4, &slow);
3586 __ Branch(&allocated); 3586 __ Branch(&allocated);
3587 3587
3588 // Slow case: Call the runtime system to do the number allocation. 3588 // Slow case: Call the runtime system to do the number allocation.
3589 __ bind(&slow); 3589 __ bind(&slow);
3590 3590
3591 CallRuntimeFromDeferred(Runtime::kAllocateHeapNumber, 0, instr, 3591 CallRuntimeFromDeferred(Runtime::kHiddenAllocateHeapNumber, 0, instr,
3592 instr->context()); 3592 instr->context());
3593 // Set the pointer to the new heap number in tmp. 3593 // Set the pointer to the new heap number in tmp.
3594 if (!tmp1.is(v0)) 3594 if (!tmp1.is(v0))
3595 __ mov(tmp1, v0); 3595 __ mov(tmp1, v0);
3596 // Restore input_reg after call to runtime. 3596 // Restore input_reg after call to runtime.
3597 __ LoadFromSafepointRegisterSlot(input, input); 3597 __ LoadFromSafepointRegisterSlot(input, input);
3598 __ lw(exponent, FieldMemOperand(input, HeapNumber::kExponentOffset)); 3598 __ lw(exponent, FieldMemOperand(input, HeapNumber::kExponentOffset));
3599 3599
3600 __ bind(&allocated); 3600 __ bind(&allocated);
3601 // exponent: floating point exponent value. 3601 // exponent: floating point exponent value.
(...skipping 1063 matching lines...) Expand 10 before | Expand all | Expand 10 after
4665 // TODO(3095996): Put a valid pointer value in the stack slot where the 4665 // TODO(3095996): Put a valid pointer value in the stack slot where the
4666 // result register is stored, as this register is in the pointer map, but 4666 // result register is stored, as this register is in the pointer map, but
4667 // contains an integer value. 4667 // contains an integer value.
4668 __ mov(dst, zero_reg); 4668 __ mov(dst, zero_reg);
4669 4669
4670 // Preserve the value of all registers. 4670 // Preserve the value of all registers.
4671 PushSafepointRegistersScope scope(this, Safepoint::kWithRegisters); 4671 PushSafepointRegistersScope scope(this, Safepoint::kWithRegisters);
4672 4672
4673 // NumberTagI and NumberTagD use the context from the frame, rather than 4673 // NumberTagI and NumberTagD use the context from the frame, rather than
4674 // the environment's HContext or HInlinedContext value. 4674 // the environment's HContext or HInlinedContext value.
4675 // They only call Runtime::kAllocateHeapNumber. 4675 // They only call Runtime::kHiddenAllocateHeapNumber.
4676 // The corresponding HChange instructions are added in a phase that does 4676 // The corresponding HChange instructions are added in a phase that does
4677 // not have easy access to the local context. 4677 // not have easy access to the local context.
4678 __ lw(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); 4678 __ lw(cp, MemOperand(fp, StandardFrameConstants::kContextOffset));
4679 __ CallRuntimeSaveDoubles(Runtime::kAllocateHeapNumber); 4679 __ CallRuntimeSaveDoubles(Runtime::kHiddenAllocateHeapNumber);
4680 RecordSafepointWithRegisters( 4680 RecordSafepointWithRegisters(
4681 instr->pointer_map(), 0, Safepoint::kNoLazyDeopt); 4681 instr->pointer_map(), 0, Safepoint::kNoLazyDeopt);
4682 __ Subu(v0, v0, kHeapObjectTag); 4682 __ Subu(v0, v0, kHeapObjectTag);
4683 __ StoreToSafepointRegisterSlot(v0, dst); 4683 __ StoreToSafepointRegisterSlot(v0, dst);
4684 } 4684 }
4685 4685
4686 4686
4687 // Done. Put the value in dbl_scratch into the value of the allocated heap 4687 // Done. Put the value in dbl_scratch into the value of the allocated heap
4688 // number. 4688 // number.
4689 __ bind(&done); 4689 __ bind(&done);
(...skipping 40 matching lines...) Expand 10 before | Expand all | Expand 10 after
4730 void LCodeGen::DoDeferredNumberTagD(LNumberTagD* instr) { 4730 void LCodeGen::DoDeferredNumberTagD(LNumberTagD* instr) {
4731 // TODO(3095996): Get rid of this. For now, we need to make the 4731 // TODO(3095996): Get rid of this. For now, we need to make the
4732 // result register contain a valid pointer because it is already 4732 // result register contain a valid pointer because it is already
4733 // contained in the register pointer map. 4733 // contained in the register pointer map.
4734 Register reg = ToRegister(instr->result()); 4734 Register reg = ToRegister(instr->result());
4735 __ mov(reg, zero_reg); 4735 __ mov(reg, zero_reg);
4736 4736
4737 PushSafepointRegistersScope scope(this, Safepoint::kWithRegisters); 4737 PushSafepointRegistersScope scope(this, Safepoint::kWithRegisters);
4738 // NumberTagI and NumberTagD use the context from the frame, rather than 4738 // NumberTagI and NumberTagD use the context from the frame, rather than
4739 // the environment's HContext or HInlinedContext value. 4739 // the environment's HContext or HInlinedContext value.
4740 // They only call Runtime::kAllocateHeapNumber. 4740 // They only call Runtime::kHiddenAllocateHeapNumber.
4741 // The corresponding HChange instructions are added in a phase that does 4741 // The corresponding HChange instructions are added in a phase that does
4742 // not have easy access to the local context. 4742 // not have easy access to the local context.
4743 __ lw(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); 4743 __ lw(cp, MemOperand(fp, StandardFrameConstants::kContextOffset));
4744 __ CallRuntimeSaveDoubles(Runtime::kAllocateHeapNumber); 4744 __ CallRuntimeSaveDoubles(Runtime::kHiddenAllocateHeapNumber);
4745 RecordSafepointWithRegisters( 4745 RecordSafepointWithRegisters(
4746 instr->pointer_map(), 0, Safepoint::kNoLazyDeopt); 4746 instr->pointer_map(), 0, Safepoint::kNoLazyDeopt);
4747 __ Subu(v0, v0, kHeapObjectTag); 4747 __ Subu(v0, v0, kHeapObjectTag);
4748 __ StoreToSafepointRegisterSlot(v0, reg); 4748 __ StoreToSafepointRegisterSlot(v0, reg);
4749 } 4749 }
4750 4750
4751 4751
4752 void LCodeGen::DoSmiTag(LSmiTag* instr) { 4752 void LCodeGen::DoSmiTag(LSmiTag* instr) {
4753 HChange* hchange = instr->hydrogen(); 4753 HChange* hchange = instr->hydrogen();
4754 Register input = ToRegister(instr->value()); 4754 Register input = ToRegister(instr->value());
(...skipping 589 matching lines...) Expand 10 before | Expand all | Expand 10 after
5344 flags = AllocateTargetSpace::update(flags, OLD_POINTER_SPACE); 5344 flags = AllocateTargetSpace::update(flags, OLD_POINTER_SPACE);
5345 } else if (instr->hydrogen()->IsOldDataSpaceAllocation()) { 5345 } else if (instr->hydrogen()->IsOldDataSpaceAllocation()) {
5346 ASSERT(!instr->hydrogen()->IsNewSpaceAllocation()); 5346 ASSERT(!instr->hydrogen()->IsNewSpaceAllocation());
5347 flags = AllocateTargetSpace::update(flags, OLD_DATA_SPACE); 5347 flags = AllocateTargetSpace::update(flags, OLD_DATA_SPACE);
5348 } else { 5348 } else {
5349 flags = AllocateTargetSpace::update(flags, NEW_SPACE); 5349 flags = AllocateTargetSpace::update(flags, NEW_SPACE);
5350 } 5350 }
5351 __ Push(Smi::FromInt(flags)); 5351 __ Push(Smi::FromInt(flags));
5352 5352
5353 CallRuntimeFromDeferred( 5353 CallRuntimeFromDeferred(
5354 Runtime::kAllocateInTargetSpace, 2, instr, instr->context()); 5354 Runtime::kHiddenAllocateInTargetSpace, 2, instr, instr->context());
5355 __ StoreToSafepointRegisterSlot(v0, result); 5355 __ StoreToSafepointRegisterSlot(v0, result);
5356 } 5356 }
5357 5357
5358 5358
5359 void LCodeGen::DoToFastProperties(LToFastProperties* instr) { 5359 void LCodeGen::DoToFastProperties(LToFastProperties* instr) {
5360 ASSERT(ToRegister(instr->value()).is(a0)); 5360 ASSERT(ToRegister(instr->value()).is(a0));
5361 ASSERT(ToRegister(instr->result()).is(v0)); 5361 ASSERT(ToRegister(instr->result()).is(v0));
5362 __ push(a0); 5362 __ push(a0);
5363 CallRuntime(Runtime::kToFastProperties, 1, instr); 5363 CallRuntime(Runtime::kToFastProperties, 1, instr);
5364 } 5364 }
(...skipping 13 matching lines...) Expand all
5378 __ lw(a1, FieldMemOperand(t3, literal_offset)); 5378 __ lw(a1, FieldMemOperand(t3, literal_offset));
5379 __ LoadRoot(at, Heap::kUndefinedValueRootIndex); 5379 __ LoadRoot(at, Heap::kUndefinedValueRootIndex);
5380 __ Branch(&materialized, ne, a1, Operand(at)); 5380 __ Branch(&materialized, ne, a1, Operand(at));
5381 5381
5382 // Create regexp literal using runtime function 5382 // Create regexp literal using runtime function
5383 // Result will be in v0. 5383 // Result will be in v0.
5384 __ li(t2, Operand(Smi::FromInt(instr->hydrogen()->literal_index()))); 5384 __ li(t2, Operand(Smi::FromInt(instr->hydrogen()->literal_index())));
5385 __ li(t1, Operand(instr->hydrogen()->pattern())); 5385 __ li(t1, Operand(instr->hydrogen()->pattern()));
5386 __ li(t0, Operand(instr->hydrogen()->flags())); 5386 __ li(t0, Operand(instr->hydrogen()->flags()));
5387 __ Push(t3, t2, t1, t0); 5387 __ Push(t3, t2, t1, t0);
5388 CallRuntime(Runtime::kMaterializeRegExpLiteral, 4, instr); 5388 CallRuntime(Runtime::kHiddenMaterializeRegExpLiteral, 4, instr);
5389 __ mov(a1, v0); 5389 __ mov(a1, v0);
5390 5390
5391 __ bind(&materialized); 5391 __ bind(&materialized);
5392 int size = JSRegExp::kSize + JSRegExp::kInObjectFieldCount * kPointerSize; 5392 int size = JSRegExp::kSize + JSRegExp::kInObjectFieldCount * kPointerSize;
5393 Label allocated, runtime_allocate; 5393 Label allocated, runtime_allocate;
5394 5394
5395 __ Allocate(size, v0, a2, a3, &runtime_allocate, TAG_OBJECT); 5395 __ Allocate(size, v0, a2, a3, &runtime_allocate, TAG_OBJECT);
5396 __ jmp(&allocated); 5396 __ jmp(&allocated);
5397 5397
5398 __ bind(&runtime_allocate); 5398 __ bind(&runtime_allocate);
5399 __ li(a0, Operand(Smi::FromInt(size))); 5399 __ li(a0, Operand(Smi::FromInt(size)));
5400 __ Push(a1, a0); 5400 __ Push(a1, a0);
5401 CallRuntime(Runtime::kAllocateInNewSpace, 1, instr); 5401 CallRuntime(Runtime::kHiddenAllocateInNewSpace, 1, instr);
5402 __ pop(a1); 5402 __ pop(a1);
5403 5403
5404 __ bind(&allocated); 5404 __ bind(&allocated);
5405 // Copy the content into the newly allocated memory. 5405 // Copy the content into the newly allocated memory.
5406 // (Unroll copy loop once for better throughput). 5406 // (Unroll copy loop once for better throughput).
5407 for (int i = 0; i < size - kPointerSize; i += 2 * kPointerSize) { 5407 for (int i = 0; i < size - kPointerSize; i += 2 * kPointerSize) {
5408 __ lw(a3, FieldMemOperand(a1, i)); 5408 __ lw(a3, FieldMemOperand(a1, i));
5409 __ lw(a2, FieldMemOperand(a1, i + kPointerSize)); 5409 __ lw(a2, FieldMemOperand(a1, i + kPointerSize));
5410 __ sw(a3, FieldMemOperand(v0, i)); 5410 __ sw(a3, FieldMemOperand(v0, i));
5411 __ sw(a2, FieldMemOperand(v0, i + kPointerSize)); 5411 __ sw(a2, FieldMemOperand(v0, i + kPointerSize));
(...skipping 13 matching lines...) Expand all
5425 if (!pretenure && instr->hydrogen()->has_no_literals()) { 5425 if (!pretenure && instr->hydrogen()->has_no_literals()) {
5426 FastNewClosureStub stub(instr->hydrogen()->strict_mode(), 5426 FastNewClosureStub stub(instr->hydrogen()->strict_mode(),
5427 instr->hydrogen()->is_generator()); 5427 instr->hydrogen()->is_generator());
5428 __ li(a2, Operand(instr->hydrogen()->shared_info())); 5428 __ li(a2, Operand(instr->hydrogen()->shared_info()));
5429 CallCode(stub.GetCode(isolate()), RelocInfo::CODE_TARGET, instr); 5429 CallCode(stub.GetCode(isolate()), RelocInfo::CODE_TARGET, instr);
5430 } else { 5430 } else {
5431 __ li(a2, Operand(instr->hydrogen()->shared_info())); 5431 __ li(a2, Operand(instr->hydrogen()->shared_info()));
5432 __ li(a1, Operand(pretenure ? factory()->true_value() 5432 __ li(a1, Operand(pretenure ? factory()->true_value()
5433 : factory()->false_value())); 5433 : factory()->false_value()));
5434 __ Push(cp, a2, a1); 5434 __ Push(cp, a2, a1);
5435 CallRuntime(Runtime::kNewClosure, 3, instr); 5435 CallRuntime(Runtime::kHiddenNewClosure, 3, instr);
5436 } 5436 }
5437 } 5437 }
5438 5438
5439 5439
5440 void LCodeGen::DoTypeof(LTypeof* instr) { 5440 void LCodeGen::DoTypeof(LTypeof* instr) {
5441 ASSERT(ToRegister(instr->result()).is(v0)); 5441 ASSERT(ToRegister(instr->result()).is(v0));
5442 Register input = ToRegister(instr->value()); 5442 Register input = ToRegister(instr->value());
5443 __ push(input); 5443 __ push(input);
5444 CallRuntime(Runtime::kTypeof, 1, instr); 5444 CallRuntime(Runtime::kTypeof, 1, instr);
5445 } 5445 }
(...skipping 203 matching lines...) Expand 10 before | Expand all | Expand 10 after
5649 5649
5650 5650
5651 void LCodeGen::DoDummyUse(LDummyUse* instr) { 5651 void LCodeGen::DoDummyUse(LDummyUse* instr) {
5652 // Nothing to see here, move on! 5652 // Nothing to see here, move on!
5653 } 5653 }
5654 5654
5655 5655
5656 void LCodeGen::DoDeferredStackCheck(LStackCheck* instr) { 5656 void LCodeGen::DoDeferredStackCheck(LStackCheck* instr) {
5657 PushSafepointRegistersScope scope(this, Safepoint::kWithRegisters); 5657 PushSafepointRegistersScope scope(this, Safepoint::kWithRegisters);
5658 LoadContextFromDeferred(instr->context()); 5658 LoadContextFromDeferred(instr->context());
5659 __ CallRuntimeSaveDoubles(Runtime::kStackGuard); 5659 __ CallRuntimeSaveDoubles(Runtime::kHiddenStackGuard);
5660 RecordSafepointWithLazyDeopt( 5660 RecordSafepointWithLazyDeopt(
5661 instr, RECORD_SAFEPOINT_WITH_REGISTERS_AND_NO_ARGUMENTS); 5661 instr, RECORD_SAFEPOINT_WITH_REGISTERS_AND_NO_ARGUMENTS);
5662 ASSERT(instr->HasEnvironment()); 5662 ASSERT(instr->HasEnvironment());
5663 LEnvironment* env = instr->environment(); 5663 LEnvironment* env = instr->environment();
5664 safepoints_.RecordLazyDeoptimizationIndex(env->deoptimization_index()); 5664 safepoints_.RecordLazyDeoptimizationIndex(env->deoptimization_index());
5665 } 5665 }
5666 5666
5667 5667
5668 void LCodeGen::DoStackCheck(LStackCheck* instr) { 5668 void LCodeGen::DoStackCheck(LStackCheck* instr) {
5669 class DeferredStackCheck V8_FINAL : public LDeferredCode { 5669 class DeferredStackCheck V8_FINAL : public LDeferredCode {
(...skipping 144 matching lines...) Expand 10 before | Expand all | Expand 10 after
5814 __ Subu(scratch, result, scratch); 5814 __ Subu(scratch, result, scratch);
5815 __ lw(result, FieldMemOperand(scratch, 5815 __ lw(result, FieldMemOperand(scratch,
5816 FixedArray::kHeaderSize - kPointerSize)); 5816 FixedArray::kHeaderSize - kPointerSize));
5817 __ bind(&done); 5817 __ bind(&done);
5818 } 5818 }
5819 5819
5820 5820
5821 #undef __ 5821 #undef __
5822 5822
5823 } } // namespace v8::internal 5823 } } // namespace v8::internal
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