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Issue 1841513003: [crankshaft] Address the deoptimization loops of Math.floor, Math.round and Math.ceil. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Register constraints in Crankshaft are fun Created 4 years, 8 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(a) { 7 function foo(x) {
8 for (var d in a) { 8 var s = Math.floor(x / 3600);
9 delete a[1]; 9 Math.floor(s);
10 } 10 return s % 24;
11 } 11 }
12 12
13 foo([1,2,3]); 13 foo(12345678);
14 foo([2,3,4]); 14 foo(12345678);
15 %OptimizeFunctionOnNextCall(foo); 15 %OptimizeFunctionOnNextCall(foo);
16 foo([1,2,3]); 16 foo(12345678);
17 assertOptimized(foo);
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