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Issue 2182003002: [turbofan] Fix overly aggressive dead code elimination. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Add comments Created 4 years, 4 months ago
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1 // Copyright 2016 the V8 project authors. All rights reserved. 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 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 // Flags: --allow-natives-syntax 5 // Flags: --allow-natives-syntax
6 6
7 function foo(x) { 7 function foo(x) { return x << x; }
8 x = +x; 8 foo(1);
9 return (x > 0) ? x : 0 - x; 9 foo(2);
10 }
11 10
12 foo(1); 11 function bar(x) { foo(x); }
13 foo(-1); 12 %OptimizeFunctionOnNextCall(bar);
14 foo(0); 13
15 %OptimizeFunctionOnNextCall(foo); 14 assertThrows(() => bar(Symbol.toPrimitive));
16 assertEquals(2147483648, foo(-2147483648));
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