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Issue 1542963002: [runtime] Introduce dedicated JSBoundFunction to represent bound functions. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@FunctionConstructor
Patch Set: [arm64] Poke does not preserve flags with --debug-code. Created 4 years, 11 months ago
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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 #include <limits.h> // For LONG_MIN, LONG_MAX. 5 #include <limits.h> // For LONG_MIN, LONG_MAX.
6 6
7 #if V8_TARGET_ARCH_ARM 7 #if V8_TARGET_ARCH_ARM
8 8
9 #include "src/base/bits.h" 9 #include "src/base/bits.h"
10 #include "src/base/division-by-constant.h" 10 #include "src/base/division-by-constant.h"
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2808 tst(object, Operand(kSmiTagMask)); 2808 tst(object, Operand(kSmiTagMask));
2809 Check(ne, kOperandIsASmiAndNotAFunction); 2809 Check(ne, kOperandIsASmiAndNotAFunction);
2810 push(object); 2810 push(object);
2811 CompareObjectType(object, object, object, JS_FUNCTION_TYPE); 2811 CompareObjectType(object, object, object, JS_FUNCTION_TYPE);
2812 pop(object); 2812 pop(object);
2813 Check(eq, kOperandIsNotAFunction); 2813 Check(eq, kOperandIsNotAFunction);
2814 } 2814 }
2815 } 2815 }
2816 2816
2817 2817
2818 void MacroAssembler::AssertBoundFunction(Register object) {
2819 if (emit_debug_code()) {
2820 STATIC_ASSERT(kSmiTag == 0);
2821 tst(object, Operand(kSmiTagMask));
2822 Check(ne, kOperandIsASmiAndNotABoundFunction);
2823 push(object);
2824 CompareObjectType(object, object, object, JS_BOUND_FUNCTION_TYPE);
2825 pop(object);
2826 Check(eq, kOperandIsNotABoundFunction);
2827 }
2828 }
2829
2830
2818 void MacroAssembler::AssertUndefinedOrAllocationSite(Register object, 2831 void MacroAssembler::AssertUndefinedOrAllocationSite(Register object,
2819 Register scratch) { 2832 Register scratch) {
2820 if (emit_debug_code()) { 2833 if (emit_debug_code()) {
2821 Label done_checking; 2834 Label done_checking;
2822 AssertNotSmi(object); 2835 AssertNotSmi(object);
2823 CompareRoot(object, Heap::kUndefinedValueRootIndex); 2836 CompareRoot(object, Heap::kUndefinedValueRootIndex);
2824 b(eq, &done_checking); 2837 b(eq, &done_checking);
2825 ldr(scratch, FieldMemOperand(object, HeapObject::kMapOffset)); 2838 ldr(scratch, FieldMemOperand(object, HeapObject::kMapOffset));
2826 CompareRoot(scratch, Heap::kAllocationSiteMapRootIndex); 2839 CompareRoot(scratch, Heap::kAllocationSiteMapRootIndex);
2827 Assert(eq, kExpectedUndefinedOrCell); 2840 Assert(eq, kExpectedUndefinedOrCell);
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3588 } 3601 }
3589 } 3602 }
3590 if (mag.shift > 0) mov(result, Operand(result, ASR, mag.shift)); 3603 if (mag.shift > 0) mov(result, Operand(result, ASR, mag.shift));
3591 add(result, result, Operand(dividend, LSR, 31)); 3604 add(result, result, Operand(dividend, LSR, 31));
3592 } 3605 }
3593 3606
3594 } // namespace internal 3607 } // namespace internal
3595 } // namespace v8 3608 } // namespace v8
3596 3609
3597 #endif // V8_TARGET_ARCH_ARM 3610 #endif // V8_TARGET_ARCH_ARM
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