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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_MIPS | 5 #if V8_TARGET_ARCH_MIPS |
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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2496 __ Branch(&done); | 2496 __ Branch(&done); |
2497 | 2497 |
2498 __ bind(¬_array_function); | 2498 __ bind(¬_array_function); |
2499 CreateWeakCellStub weak_cell_stub(masm->isolate()); | 2499 CreateWeakCellStub weak_cell_stub(masm->isolate()); |
2500 CallStubInRecordCallTarget(masm, &weak_cell_stub, is_super); | 2500 CallStubInRecordCallTarget(masm, &weak_cell_stub, is_super); |
2501 __ bind(&done); | 2501 __ bind(&done); |
2502 } | 2502 } |
2503 | 2503 |
2504 | 2504 |
2505 static void EmitContinueIfStrictOrNative(MacroAssembler* masm, Label* cont) { | 2505 static void EmitContinueIfStrictOrNative(MacroAssembler* masm, Label* cont) { |
2506 __ lw(a3, FieldMemOperand(a1, JSFunction::kSharedFunctionInfoOffset)); | 2506 // ----------- S t a t e ------------- |
| 2507 // -- a1 : the function to call |
| 2508 // -- a3 : the function's shared function info |
| 2509 // ----------------------------------- |
2507 __ lw(t0, FieldMemOperand(a3, SharedFunctionInfo::kCompilerHintsOffset)); | 2510 __ lw(t0, FieldMemOperand(a3, SharedFunctionInfo::kCompilerHintsOffset)); |
2508 | 2511 |
2509 // Do not transform the receiver for strict mode functions. | 2512 // Do not transform the receiver for strict mode functions. |
2510 int32_t strict_mode_function_mask = | 2513 int32_t strict_mode_function_mask = |
2511 1 << (SharedFunctionInfo::kStrictModeFunction + kSmiTagSize); | 2514 1 << (SharedFunctionInfo::kStrictModeFunction + kSmiTagSize); |
2512 // Do not transform the receiver for native (Compilerhints already in a3). | 2515 // Do not transform the receiver for native (Compilerhints already in a3). |
2513 int32_t native_mask = 1 << (SharedFunctionInfo::kNative + kSmiTagSize); | 2516 int32_t native_mask = 1 << (SharedFunctionInfo::kNative + kSmiTagSize); |
2514 __ And(at, t0, Operand(strict_mode_function_mask | native_mask)); | 2517 __ And(at, t0, Operand(strict_mode_function_mask | native_mask)); |
2515 __ Branch(cont, ne, at, Operand(zero_reg)); | 2518 __ Branch(cont, ne, at, Operand(zero_reg)); |
2516 } | 2519 } |
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2529 __ mov(a0, a3); | 2532 __ mov(a0, a3); |
2530 ToObjectStub stub(masm->isolate()); | 2533 ToObjectStub stub(masm->isolate()); |
2531 __ CallStub(&stub); | 2534 __ CallStub(&stub); |
2532 __ pop(a1); | 2535 __ pop(a1); |
2533 } | 2536 } |
2534 __ Branch(USE_DELAY_SLOT, cont); | 2537 __ Branch(USE_DELAY_SLOT, cont); |
2535 __ sw(v0, MemOperand(sp, argc * kPointerSize)); | 2538 __ sw(v0, MemOperand(sp, argc * kPointerSize)); |
2536 } | 2539 } |
2537 | 2540 |
2538 | 2541 |
| 2542 static void EmitClassConstructorCallCheck(MacroAssembler* masm) { |
| 2543 // ----------- S t a t e ------------- |
| 2544 // -- a1 : the function to call |
| 2545 // -- a3 : the function's shared function info |
| 2546 // ----------------------------------- |
| 2547 // ClassConstructor Check: ES6 section 9.2.1 [[Call]] |
| 2548 Label non_class_constructor; |
| 2549 // Check whether the current function is a classConstructor. |
| 2550 __ lbu(t0, FieldMemOperand(a3, SharedFunctionInfo::kFunctionKindByteOffset)); |
| 2551 __ And(at, t0, Operand(SharedFunctionInfo::kClassConstructorBitsWithinByte)); |
| 2552 __ Branch(&non_class_constructor, eq, at, Operand(zero_reg)); |
| 2553 // Step: 2, If we call a classConstructor Function throw a TypeError. |
| 2554 __ Jump(masm->isolate()->builtins()->CallFunction(), RelocInfo::CODE_TARGET); |
| 2555 __ bind(&non_class_constructor); |
| 2556 } |
| 2557 |
| 2558 |
2539 static void CallFunctionNoFeedback(MacroAssembler* masm, | 2559 static void CallFunctionNoFeedback(MacroAssembler* masm, |
2540 int argc, bool needs_checks, | 2560 int argc, bool needs_checks, |
2541 bool call_as_method) { | 2561 bool call_as_method) { |
2542 // a1 : the function to call | 2562 // a1 : the function to call |
2543 Label slow, wrap, cont; | 2563 Label slow, wrap, cont; |
2544 | 2564 |
2545 if (needs_checks) { | 2565 if (needs_checks) { |
2546 // Check that the function is really a JavaScript function. | 2566 // Check that the function is really a JavaScript function. |
2547 // a1: pushed function (to be verified) | 2567 // a1: pushed function (to be verified) |
2548 __ JumpIfSmi(a1, &slow); | 2568 __ JumpIfSmi(a1, &slow); |
2549 | 2569 |
2550 // Goto slow case if we do not have a function. | 2570 // Goto slow case if we do not have a function. |
2551 __ GetObjectType(a1, t0, t0); | 2571 __ GetObjectType(a1, t0, t0); |
2552 __ Branch(&slow, ne, t0, Operand(JS_FUNCTION_TYPE)); | 2572 __ Branch(&slow, ne, t0, Operand(JS_FUNCTION_TYPE)); |
2553 } | 2573 } |
2554 | 2574 |
| 2575 __ lw(a3, FieldMemOperand(a1, JSFunction::kSharedFunctionInfoOffset)); |
| 2576 EmitClassConstructorCallCheck(masm); |
| 2577 |
2555 // Fast-case: Invoke the function now. | 2578 // Fast-case: Invoke the function now. |
2556 // a1: pushed function | 2579 // a1: pushed function |
2557 ParameterCount actual(argc); | 2580 ParameterCount actual(argc); |
2558 | 2581 |
2559 if (call_as_method) { | 2582 if (call_as_method) { |
2560 if (needs_checks) { | 2583 if (needs_checks) { |
2561 EmitContinueIfStrictOrNative(masm, &cont); | 2584 EmitContinueIfStrictOrNative(masm, &cont); |
2562 } | 2585 } |
2563 | 2586 |
2564 // Compute the receiver in sloppy mode. | 2587 // Compute the receiver in sloppy mode. |
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2712 __ JumpIfSmi(a1, &extra_checks_or_miss); | 2735 __ JumpIfSmi(a1, &extra_checks_or_miss); |
2713 | 2736 |
2714 // Increment the call count for monomorphic function calls. | 2737 // Increment the call count for monomorphic function calls. |
2715 __ sll(at, a3, kPointerSizeLog2 - kSmiTagSize); | 2738 __ sll(at, a3, kPointerSizeLog2 - kSmiTagSize); |
2716 __ Addu(at, a2, Operand(at)); | 2739 __ Addu(at, a2, Operand(at)); |
2717 __ lw(a3, FieldMemOperand(at, FixedArray::kHeaderSize + kPointerSize)); | 2740 __ lw(a3, FieldMemOperand(at, FixedArray::kHeaderSize + kPointerSize)); |
2718 __ Addu(a3, a3, Operand(Smi::FromInt(CallICNexus::kCallCountIncrement))); | 2741 __ Addu(a3, a3, Operand(Smi::FromInt(CallICNexus::kCallCountIncrement))); |
2719 __ sw(a3, FieldMemOperand(at, FixedArray::kHeaderSize + kPointerSize)); | 2742 __ sw(a3, FieldMemOperand(at, FixedArray::kHeaderSize + kPointerSize)); |
2720 | 2743 |
2721 __ bind(&have_js_function); | 2744 __ bind(&have_js_function); |
| 2745 |
| 2746 __ lw(a3, FieldMemOperand(a1, JSFunction::kSharedFunctionInfoOffset)); |
| 2747 EmitClassConstructorCallCheck(masm); |
| 2748 |
2722 if (CallAsMethod()) { | 2749 if (CallAsMethod()) { |
2723 EmitContinueIfStrictOrNative(masm, &cont); | 2750 EmitContinueIfStrictOrNative(masm, &cont); |
2724 // Compute the receiver in sloppy mode. | 2751 // Compute the receiver in sloppy mode. |
2725 __ lw(a3, MemOperand(sp, argc * kPointerSize)); | 2752 __ lw(a3, MemOperand(sp, argc * kPointerSize)); |
2726 | 2753 |
2727 __ JumpIfSmi(a3, &wrap); | 2754 __ JumpIfSmi(a3, &wrap); |
2728 __ GetObjectType(a3, t0, t0); | 2755 __ GetObjectType(a3, t0, t0); |
2729 __ Branch(&wrap, lt, t0, Operand(FIRST_SPEC_OBJECT_TYPE)); | 2756 __ Branch(&wrap, lt, t0, Operand(FIRST_SPEC_OBJECT_TYPE)); |
2730 | 2757 |
2731 __ bind(&cont); | 2758 __ bind(&cont); |
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5759 MemOperand(fp, 6 * kPointerSize), NULL); | 5786 MemOperand(fp, 6 * kPointerSize), NULL); |
5760 } | 5787 } |
5761 | 5788 |
5762 | 5789 |
5763 #undef __ | 5790 #undef __ |
5764 | 5791 |
5765 } // namespace internal | 5792 } // namespace internal |
5766 } // namespace v8 | 5793 } // namespace v8 |
5767 | 5794 |
5768 #endif // V8_TARGET_ARCH_MIPS | 5795 #endif // V8_TARGET_ARCH_MIPS |
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