52 lines
636 B
C
52 lines
636 B
C
/* { dg-do compile } */
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/* { dg-options "-O2 -fdump-tree-original" } */
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/* x + (x & 1) -> (x + 1) & ~1 */
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int
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fn1 (int x)
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{
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return x + (x & 1);
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}
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int
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fn2 (int x)
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{
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return (x & 1) + x;
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}
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int
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fn3 (int x)
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{
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return x + (1 & x);
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}
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int
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fn4 (int x)
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{
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return (1 & x) + x;
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}
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unsigned int
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fn5 (unsigned int x)
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{
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return x + (x & 1);
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}
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unsigned int
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fn6 (unsigned int x)
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{
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return (x & 1) + x;
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}
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unsigned int
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fn7 (unsigned int x)
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{
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return x + (x % 2);
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}
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unsigned int
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fn8 (unsigned int x)
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{
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return (x % 2) + x;
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}
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unsigned int
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fn9 (unsigned int x)
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{
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return (1LL & x) + x;
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}
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/* { dg-final { scan-tree-dump-times "x \\+ 1" 9 "original" } } */
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