24 lines
510 B
C
24 lines
510 B
C
/* PR tree-optimization/22117
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VRP used think that &p[q] is nonzero even though p and q are both
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known to be zero after entering the first two "if" statements. */
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/* { dg-do compile } */
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/* { dg-options "-O2 -fdump-tree-vrp1" } */
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void
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foo (int *p, int q)
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{
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if (p == 0)
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{
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if (q == 0)
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{
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int *r = &p[q];
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if (r != 0)
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link_error ();
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}
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}
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}
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/* { dg-final { scan-tree-dump-times "Folding predicate r_.* != 0B to 0" 1 "vrp1" } } */
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/* { dg-final { cleanup-tree-dump "vrp1" } } */
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