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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #if V8_TARGET_ARCH_ARM | 5 #if V8_TARGET_ARCH_ARM |
6 | 6 |
7 #include "src/base/bits.h" | 7 #include "src/base/bits.h" |
8 #include "src/bootstrapper.h" | 8 #include "src/bootstrapper.h" |
9 #include "src/code-stubs.h" | 9 #include "src/code-stubs.h" |
10 #include "src/codegen.h" | 10 #include "src/codegen.h" |
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675 } | 675 } |
676 // Never falls through to here. | 676 // Never falls through to here. |
677 | 677 |
678 __ bind(&slow); | 678 __ bind(&slow); |
679 | 679 |
680 __ Push(lhs, rhs); | 680 __ Push(lhs, rhs); |
681 // Figure out which native to call and setup the arguments. | 681 // Figure out which native to call and setup the arguments. |
682 if (cc == eq && strict()) { | 682 if (cc == eq && strict()) { |
683 __ TailCallRuntime(Runtime::kStrictEquals, 2, 1); | 683 __ TailCallRuntime(Runtime::kStrictEquals, 2, 1); |
684 } else { | 684 } else { |
685 Builtins::JavaScript native; | 685 int context_index; |
686 if (cc == eq) { | 686 if (cc == eq) { |
687 native = Builtins::EQUALS; | 687 context_index = Context::EQUALS_BUILTIN_INDEX; |
688 } else { | 688 } else { |
689 native = | 689 context_index = is_strong(strength()) |
690 is_strong(strength()) ? Builtins::COMPARE_STRONG : Builtins::COMPARE; | 690 ? Context::COMPARE_STRONG_BUILTIN_INDEX |
| 691 : Context::COMPARE_BUILTIN_INDEX; |
691 int ncr; // NaN compare result | 692 int ncr; // NaN compare result |
692 if (cc == lt || cc == le) { | 693 if (cc == lt || cc == le) { |
693 ncr = GREATER; | 694 ncr = GREATER; |
694 } else { | 695 } else { |
695 DCHECK(cc == gt || cc == ge); // remaining cases | 696 DCHECK(cc == gt || cc == ge); // remaining cases |
696 ncr = LESS; | 697 ncr = LESS; |
697 } | 698 } |
698 __ mov(r0, Operand(Smi::FromInt(ncr))); | 699 __ mov(r0, Operand(Smi::FromInt(ncr))); |
699 __ push(r0); | 700 __ push(r0); |
700 } | 701 } |
701 | 702 |
702 // Call the native; it returns -1 (less), 0 (equal), or 1 (greater) | 703 // Call the native; it returns -1 (less), 0 (equal), or 1 (greater) |
703 // tagged as a small integer. | 704 // tagged as a small integer. |
704 __ InvokeBuiltin(native, JUMP_FUNCTION); | 705 __ InvokeBuiltin(context_index, JUMP_FUNCTION); |
705 } | 706 } |
706 | 707 |
707 __ bind(&miss); | 708 __ bind(&miss); |
708 GenerateMiss(masm); | 709 GenerateMiss(masm); |
709 } | 710 } |
710 | 711 |
711 | 712 |
712 void StoreBufferOverflowStub::Generate(MacroAssembler* masm) { | 713 void StoreBufferOverflowStub::Generate(MacroAssembler* masm) { |
713 // We don't allow a GC during a store buffer overflow so there is no need to | 714 // We don't allow a GC during a store buffer overflow so there is no need to |
714 // store the registers in any particular way, but we do have to store and | 715 // store the registers in any particular way, but we do have to store and |
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2419 | 2420 |
2420 static void EmitSlowCase(MacroAssembler* masm, | 2421 static void EmitSlowCase(MacroAssembler* masm, |
2421 int argc, | 2422 int argc, |
2422 Label* non_function) { | 2423 Label* non_function) { |
2423 // Check for function proxy. | 2424 // Check for function proxy. |
2424 __ cmp(r4, Operand(JS_FUNCTION_PROXY_TYPE)); | 2425 __ cmp(r4, Operand(JS_FUNCTION_PROXY_TYPE)); |
2425 __ b(ne, non_function); | 2426 __ b(ne, non_function); |
2426 __ push(r1); // put proxy as additional argument | 2427 __ push(r1); // put proxy as additional argument |
2427 __ mov(r0, Operand(argc + 1, RelocInfo::NONE32)); | 2428 __ mov(r0, Operand(argc + 1, RelocInfo::NONE32)); |
2428 __ mov(r2, Operand::Zero()); | 2429 __ mov(r2, Operand::Zero()); |
2429 __ GetBuiltinFunction(r1, Builtins::CALL_FUNCTION_PROXY); | 2430 __ GetBuiltinFunction(r1, Context::CALL_FUNCTION_PROXY_BUILTIN_INDEX); |
2430 { | 2431 { |
2431 Handle<Code> adaptor = | 2432 Handle<Code> adaptor = |
2432 masm->isolate()->builtins()->ArgumentsAdaptorTrampoline(); | 2433 masm->isolate()->builtins()->ArgumentsAdaptorTrampoline(); |
2433 __ Jump(adaptor, RelocInfo::CODE_TARGET); | 2434 __ Jump(adaptor, RelocInfo::CODE_TARGET); |
2434 } | 2435 } |
2435 | 2436 |
2436 // CALL_NON_FUNCTION expects the non-function callee as receiver (instead | 2437 // CALL_NON_FUNCTION expects the non-function callee as receiver (instead |
2437 // of the original receiver from the call site). | 2438 // of the original receiver from the call site). |
2438 __ bind(non_function); | 2439 __ bind(non_function); |
2439 __ str(r1, MemOperand(sp, argc * kPointerSize)); | 2440 __ str(r1, MemOperand(sp, argc * kPointerSize)); |
2440 __ mov(r0, Operand(argc)); // Set up the number of arguments. | 2441 __ mov(r0, Operand(argc)); // Set up the number of arguments. |
2441 __ mov(r2, Operand::Zero()); | 2442 __ mov(r2, Operand::Zero()); |
2442 __ GetBuiltinFunction(r1, Builtins::CALL_NON_FUNCTION); | 2443 __ GetBuiltinFunction(r1, Context::CALL_NON_FUNCTION_BUILTIN_INDEX); |
2443 __ Jump(masm->isolate()->builtins()->ArgumentsAdaptorTrampoline(), | 2444 __ Jump(masm->isolate()->builtins()->ArgumentsAdaptorTrampoline(), |
2444 RelocInfo::CODE_TARGET); | 2445 RelocInfo::CODE_TARGET); |
2445 } | 2446 } |
2446 | 2447 |
2447 | 2448 |
2448 static void EmitWrapCase(MacroAssembler* masm, int argc, Label* cont) { | 2449 static void EmitWrapCase(MacroAssembler* masm, int argc, Label* cont) { |
2449 // Wrap the receiver and patch it back onto the stack. | 2450 // Wrap the receiver and patch it back onto the stack. |
2450 { FrameAndConstantPoolScope frame_scope(masm, StackFrame::INTERNAL); | 2451 { FrameAndConstantPoolScope frame_scope(masm, StackFrame::INTERNAL); |
2451 __ push(r1); | 2452 __ push(r1); |
2452 __ mov(r0, r3); | 2453 __ mov(r0, r3); |
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2569 SharedFunctionInfo::kConstructStubOffset)); | 2570 SharedFunctionInfo::kConstructStubOffset)); |
2570 __ add(pc, jmp_reg, Operand(Code::kHeaderSize - kHeapObjectTag)); | 2571 __ add(pc, jmp_reg, Operand(Code::kHeaderSize - kHeapObjectTag)); |
2571 | 2572 |
2572 // r0: number of arguments | 2573 // r0: number of arguments |
2573 // r1: called object | 2574 // r1: called object |
2574 // r5: object type | 2575 // r5: object type |
2575 Label do_call; | 2576 Label do_call; |
2576 __ bind(&slow); | 2577 __ bind(&slow); |
2577 __ cmp(r5, Operand(JS_FUNCTION_PROXY_TYPE)); | 2578 __ cmp(r5, Operand(JS_FUNCTION_PROXY_TYPE)); |
2578 __ b(ne, &non_function_call); | 2579 __ b(ne, &non_function_call); |
2579 __ GetBuiltinFunction(r1, Builtins::CALL_FUNCTION_PROXY_AS_CONSTRUCTOR); | 2580 __ GetBuiltinFunction( |
| 2581 r1, Context::CALL_FUNCTION_PROXY_AS_CONSTRUCTOR_BUILTIN_INDEX); |
2580 __ jmp(&do_call); | 2582 __ jmp(&do_call); |
2581 | 2583 |
2582 __ bind(&non_function_call); | 2584 __ bind(&non_function_call); |
2583 __ GetBuiltinFunction(r1, Builtins::CALL_NON_FUNCTION_AS_CONSTRUCTOR); | 2585 __ GetBuiltinFunction( |
| 2586 r1, Context::CALL_NON_FUNCTION_AS_CONSTRUCTOR_BUILTIN_INDEX); |
2584 __ bind(&do_call); | 2587 __ bind(&do_call); |
2585 // Set expected number of arguments to zero (not changing r0). | 2588 // Set expected number of arguments to zero (not changing r0). |
2586 __ mov(r2, Operand::Zero()); | 2589 __ mov(r2, Operand::Zero()); |
2587 __ Jump(masm->isolate()->builtins()->ArgumentsAdaptorTrampoline(), | 2590 __ Jump(masm->isolate()->builtins()->ArgumentsAdaptorTrampoline(), |
2588 RelocInfo::CODE_TARGET); | 2591 RelocInfo::CODE_TARGET); |
2589 } | 2592 } |
2590 | 2593 |
2591 | 2594 |
2592 static void EmitLoadTypeFeedbackVector(MacroAssembler* masm, Register vector) { | 2595 static void EmitLoadTypeFeedbackVector(MacroAssembler* masm, Register vector) { |
2593 __ ldr(vector, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset)); | 2596 __ ldr(vector, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset)); |
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3254 __ bind(¬_string); | 3257 __ bind(¬_string); |
3255 | 3258 |
3256 Label not_oddball; | 3259 Label not_oddball; |
3257 __ cmp(r1, Operand(ODDBALL_TYPE)); | 3260 __ cmp(r1, Operand(ODDBALL_TYPE)); |
3258 __ b(ne, ¬_oddball); | 3261 __ b(ne, ¬_oddball); |
3259 __ ldr(r0, FieldMemOperand(r0, Oddball::kToNumberOffset)); | 3262 __ ldr(r0, FieldMemOperand(r0, Oddball::kToNumberOffset)); |
3260 __ Ret(); | 3263 __ Ret(); |
3261 __ bind(¬_oddball); | 3264 __ bind(¬_oddball); |
3262 | 3265 |
3263 __ push(r0); // Push argument. | 3266 __ push(r0); // Push argument. |
3264 __ InvokeBuiltin(Builtins::TO_NUMBER, JUMP_FUNCTION); | 3267 __ InvokeBuiltin(Context::TO_NUMBER_BUILTIN_INDEX, JUMP_FUNCTION); |
3265 } | 3268 } |
3266 | 3269 |
3267 | 3270 |
3268 void StringHelper::GenerateFlatOneByteStringEquals( | 3271 void StringHelper::GenerateFlatOneByteStringEquals( |
3269 MacroAssembler* masm, Register left, Register right, Register scratch1, | 3272 MacroAssembler* masm, Register left, Register right, Register scratch1, |
3270 Register scratch2, Register scratch3) { | 3273 Register scratch2, Register scratch3) { |
3271 Register length = scratch1; | 3274 Register length = scratch1; |
3272 | 3275 |
3273 // Compare lengths. | 3276 // Compare lengths. |
3274 Label strings_not_equal, check_zero_length; | 3277 Label strings_not_equal, check_zero_length; |
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5427 MemOperand(fp, 6 * kPointerSize), NULL); | 5430 MemOperand(fp, 6 * kPointerSize), NULL); |
5428 } | 5431 } |
5429 | 5432 |
5430 | 5433 |
5431 #undef __ | 5434 #undef __ |
5432 | 5435 |
5433 } // namespace internal | 5436 } // namespace internal |
5434 } // namespace v8 | 5437 } // namespace v8 |
5435 | 5438 |
5436 #endif // V8_TARGET_ARCH_ARM | 5439 #endif // V8_TARGET_ARCH_ARM |
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