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Issue 1479233002: Deprecate the %IsConstructCall intrinsic completely. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@local_js-use-new-target-3
Patch Set: Rebased. Created 5 years ago
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1 // Copyright 2013 the V8 project authors. All rights reserved. 1 // Copyright 2013 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_ARM64 5 #if V8_TARGET_ARCH_ARM64
6 6
7 #include "src/ast/scopes.h" 7 #include "src/ast/scopes.h"
8 #include "src/code-factory.h" 8 #include "src/code-factory.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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2982 __ Ldrb(type_reg, FieldMemOperand(map, Map::kInstanceTypeOffset)); 2982 __ Ldrb(type_reg, FieldMemOperand(map, Map::kInstanceTypeOffset));
2983 __ Sub(type_reg, type_reg, Operand(FIRST_JS_PROXY_TYPE)); 2983 __ Sub(type_reg, type_reg, Operand(FIRST_JS_PROXY_TYPE));
2984 __ Cmp(type_reg, Operand(LAST_JS_PROXY_TYPE - FIRST_JS_PROXY_TYPE)); 2984 __ Cmp(type_reg, Operand(LAST_JS_PROXY_TYPE - FIRST_JS_PROXY_TYPE));
2985 PrepareForBailoutBeforeSplit(expr, true, if_true, if_false); 2985 PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
2986 Split(ls, if_true, if_false, fall_through); 2986 Split(ls, if_true, if_false, fall_through);
2987 2987
2988 context()->Plug(if_true, if_false); 2988 context()->Plug(if_true, if_false);
2989 } 2989 }
2990 2990
2991 2991
2992 void FullCodeGenerator::EmitIsConstructCall(CallRuntime* expr) {
2993 DCHECK(expr->arguments()->length() == 0);
2994
2995 Label materialize_true, materialize_false;
2996 Label* if_true = NULL;
2997 Label* if_false = NULL;
2998 Label* fall_through = NULL;
2999 context()->PrepareTest(&materialize_true, &materialize_false,
3000 &if_true, &if_false, &fall_through);
3001
3002 // Get the frame pointer for the calling frame.
3003 __ Ldr(x2, MemOperand(fp, StandardFrameConstants::kCallerFPOffset));
3004
3005 // Skip the arguments adaptor frame if it exists.
3006 Label check_frame_marker;
3007 __ Ldr(x1, MemOperand(x2, StandardFrameConstants::kContextOffset));
3008 __ Cmp(x1, Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR));
3009 __ B(ne, &check_frame_marker);
3010 __ Ldr(x2, MemOperand(x2, StandardFrameConstants::kCallerFPOffset));
3011
3012 // Check the marker in the calling frame.
3013 __ Bind(&check_frame_marker);
3014 __ Ldr(x1, MemOperand(x2, StandardFrameConstants::kMarkerOffset));
3015 __ Cmp(x1, Smi::FromInt(StackFrame::CONSTRUCT));
3016 PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
3017 Split(eq, if_true, if_false, fall_through);
3018
3019 context()->Plug(if_true, if_false);
3020 }
3021
3022
3023 void FullCodeGenerator::EmitObjectEquals(CallRuntime* expr) { 2992 void FullCodeGenerator::EmitObjectEquals(CallRuntime* expr) {
3024 ZoneList<Expression*>* args = expr->arguments(); 2993 ZoneList<Expression*>* args = expr->arguments();
3025 DCHECK(args->length() == 2); 2994 DCHECK(args->length() == 2);
3026 2995
3027 // Load the two objects into registers and perform the comparison. 2996 // Load the two objects into registers and perform the comparison.
3028 VisitForStackValue(args->at(0)); 2997 VisitForStackValue(args->at(0));
3029 VisitForAccumulatorValue(args->at(1)); 2998 VisitForAccumulatorValue(args->at(1));
3030 2999
3031 Label materialize_true, materialize_false; 3000 Label materialize_true, materialize_false;
3032 Label* if_true = NULL; 3001 Label* if_true = NULL;
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4982 } 4951 }
4983 4952
4984 return INTERRUPT; 4953 return INTERRUPT;
4985 } 4954 }
4986 4955
4987 4956
4988 } // namespace internal 4957 } // namespace internal
4989 } // namespace v8 4958 } // namespace v8
4990 4959
4991 #endif // V8_TARGET_ARCH_ARM64 4960 #endif // V8_TARGET_ARCH_ARM64
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