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Issue 2533263002: [turbofan] Teach escape analysis about ConvertTaggedHoleToUndefined. (Closed)
Patch Set: Created 4 years ago
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1 // Copyright 2016 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 // Flags: --allow-natives-syntax
6
7 function foo() {
8 var a = [,];
9 a[0] = {}
10 a[0].toString = FAIL;
11 }
12 try { foo(); } catch (e) {}
13 try { foo(); } catch (e) {}
14 %OptimizeFunctionOnNextCall(foo);
15 try { foo(); } catch (e) {}
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