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Issue 2412853002: [crankshaft] Range analysis should not rely on overflowed ranges. (Closed)
Patch Set: Created 4 years, 2 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 f() { 7 function n(x,y){
8 return typeof null === "object"; 8 y = (y-(0x80000000|0)|0);
9 return (x/y)|0;
9 }; 10 };
10 11 var x = -0x80000000;
11 %OptimizeFunctionOnNextCall(f); 12 var y = 0x7fffffff;
12 assertTrue(f()); 13 n(x,y);
14 n(x,y);
15 %OptimizeFunctionOnNextCall(n);
16 assertEquals(x, n(x,y));
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