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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 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | 27 |
28 // Flags: --allow-natives-syntax | 28 // Flags: --allow-natives-syntax |
29 | 29 |
30 var large_int = 0x40000000; | 30 var large_int = 0x40000000; |
31 | 31 |
32 function foo(x, expected) { | 32 function foo(x, expected) { |
33 assertEquals(expected, x); // This succeeds. | 33 assertEquals(expected, x); // This succeeds. |
34 x += 0; // Force int32 representation so that CompareIDAndBranch is used. | 34 x += 0; // Force int32 representation so that |
| 35 // CompareNumericAndBranch is used. |
35 if (3 != x) { | 36 if (3 != x) { |
36 x += 0; // Poor man's "iDef". | 37 x += 0; // Poor man's "iDef". |
37 // Fails due to Smi-tagging without overflow check. | 38 // Fails due to Smi-tagging without overflow check. |
38 assertEquals(expected, x); | 39 assertEquals(expected, x); |
39 } | 40 } |
40 } | 41 } |
41 | 42 |
42 foo(1, 1); | 43 foo(1, 1); |
43 foo(3, 3); | 44 foo(3, 3); |
44 %OptimizeFunctionOnNextCall(foo); | 45 %OptimizeFunctionOnNextCall(foo); |
45 foo(large_int, large_int); | 46 foo(large_int, large_int); |
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