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1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 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 #include <assert.h> // For assert | 5 #include <assert.h> // For assert |
6 #include <limits.h> // For LONG_MIN, LONG_MAX. | 6 #include <limits.h> // For LONG_MIN, LONG_MAX. |
7 | 7 |
8 #if V8_TARGET_ARCH_PPC | 8 #if V8_TARGET_ARCH_PPC |
9 | 9 |
10 #include "src/base/bits.h" | 10 #include "src/base/bits.h" |
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2618 STATIC_ASSERT(kSmiTag == 0); | 2618 STATIC_ASSERT(kSmiTag == 0); |
2619 TestIfSmi(object, r0); | 2619 TestIfSmi(object, r0); |
2620 Check(ne, kOperandIsASmiAndNotABoundFunction, cr0); | 2620 Check(ne, kOperandIsASmiAndNotABoundFunction, cr0); |
2621 push(object); | 2621 push(object); |
2622 CompareObjectType(object, object, object, JS_BOUND_FUNCTION_TYPE); | 2622 CompareObjectType(object, object, object, JS_BOUND_FUNCTION_TYPE); |
2623 pop(object); | 2623 pop(object); |
2624 Check(eq, kOperandIsNotABoundFunction); | 2624 Check(eq, kOperandIsNotABoundFunction); |
2625 } | 2625 } |
2626 } | 2626 } |
2627 | 2627 |
2628 void MacroAssembler::AssertGeneratorObject(Register object) { | 2628 void MacroAssembler::AssertGeneratorObject(Register object, Register flags) { |
2629 if (emit_debug_code()) { | 2629 // `flags` should be an untagged integer. See `SuspendFlags` in src/globals.h |
2630 STATIC_ASSERT(kSmiTag == 0); | 2630 if (!emit_debug_code()) return; |
2631 TestIfSmi(object, r0); | 2631 TestIfSmi(object, r0); |
2632 Check(ne, kOperandIsASmiAndNotAGeneratorObject, cr0); | 2632 Check(ne, kOperandIsASmiAndNotAGeneratorObject); |
2633 push(object); | |
2634 CompareObjectType(object, object, object, JS_GENERATOR_OBJECT_TYPE); | |
2635 pop(object); | |
2636 Check(eq, kOperandIsNotAGeneratorObject); | |
2637 } | |
2638 } | |
2639 | 2633 |
2640 void MacroAssembler::AssertAsyncGeneratorObject(Register object) { | 2634 // Load map |
2641 if (emit_debug_code()) { | 2635 Register map = object; |
2642 STATIC_ASSERT(kSmiTag == 0); | 2636 push(object); |
2643 TestIfSmi(object, r0); | 2637 LoadP(map, FieldMemOperand(object, HeapObject::kMapOffset)); |
2644 Check(ne, kOperandIsASmiAndNotAGeneratorObject); | 2638 |
2645 push(object); | 2639 Label async, do_check; |
2646 CompareObjectType(object, object, object, JS_ASYNC_GENERATOR_OBJECT_TYPE); | 2640 And(ip, flags, Operand(static_cast<int>(SuspendFlags::kGeneratorTypeMask))); |
2647 pop(object); | 2641 cmpi(ip, Operand(static_cast<int>(SuspendFlags::kGeneratorTypeMask))); |
2648 Check(eq, kOperandIsNotAGeneratorObject); | 2642 bne(&async); |
2649 } | 2643 |
| 2644 // Check if JSGeneratorObject |
| 2645 CompareInstanceType(map, object, JS_GENERATOR_OBJECT_TYPE); |
| 2646 b(&do_check); |
| 2647 |
| 2648 bind(&async); |
| 2649 // Check if JSAsyncGeneratorObject |
| 2650 CompareInstanceType(map, object, JS_ASYNC_GENERATOR_OBJECT_TYPE); |
| 2651 |
| 2652 bind(&do_check); |
| 2653 // Restore generator object to register and perform assertion |
| 2654 pop(object); |
| 2655 Check(eq, kOperandIsNotAGeneratorObject); |
2650 } | 2656 } |
2651 | 2657 |
2652 void MacroAssembler::AssertUndefinedOrAllocationSite(Register object, | 2658 void MacroAssembler::AssertUndefinedOrAllocationSite(Register object, |
2653 Register scratch) { | 2659 Register scratch) { |
2654 if (emit_debug_code()) { | 2660 if (emit_debug_code()) { |
2655 Label done_checking; | 2661 Label done_checking; |
2656 AssertNotSmi(object); | 2662 AssertNotSmi(object); |
2657 CompareRoot(object, Heap::kUndefinedValueRootIndex); | 2663 CompareRoot(object, Heap::kUndefinedValueRootIndex); |
2658 beq(&done_checking); | 2664 beq(&done_checking); |
2659 LoadP(scratch, FieldMemOperand(object, HeapObject::kMapOffset)); | 2665 LoadP(scratch, FieldMemOperand(object, HeapObject::kMapOffset)); |
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4251 } | 4257 } |
4252 if (mag.shift > 0) srawi(result, result, mag.shift); | 4258 if (mag.shift > 0) srawi(result, result, mag.shift); |
4253 ExtractBit(r0, dividend, 31); | 4259 ExtractBit(r0, dividend, 31); |
4254 add(result, result, r0); | 4260 add(result, result, r0); |
4255 } | 4261 } |
4256 | 4262 |
4257 } // namespace internal | 4263 } // namespace internal |
4258 } // namespace v8 | 4264 } // namespace v8 |
4259 | 4265 |
4260 #endif // V8_TARGET_ARCH_PPC | 4266 #endif // V8_TARGET_ARCH_PPC |
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