33 lines
516 B
C
33 lines
516 B
C
/* { dg-do compile } */
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/* { dg-options "-O2 -fdump-tree-original" } */
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/* x & ~(x & y) -> x & ~y */
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int fn1 (int x, int y)
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{
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return x & ~(x & y);
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}
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int fn2 (int x, int y)
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{
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return ~(x & y) & x;
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}
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int fn3 (int x, int y)
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{
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return x & ~(y & x);
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}
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int fn4 (int x, int y)
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{
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return ~(y & x) & x;
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}
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int fn5 (int z)
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{
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return z & ~(z & 3);
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}
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int fn6 (int z)
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{
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return ~(z & 3) & z;
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}
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/* { dg-final { scan-tree-dump-times "~y & x" 4 "original" } } */
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/* { dg-final { scan-tree-dump-times "z & -4" 2 "original" } } */
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