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111
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1 /* PR tree-optimization/21294
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2 VRP did not notice that an address of the form &p->i is nonnull
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3 when p is known to be nonnull. In this testcase, noticing that
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4 allows us to eliminate the second "if" statement. */
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5
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6 /* { dg-do compile } */
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7 /* { dg-options "-O2 -fno-tree-dominator-opts -fdisable-tree-evrp -fdump-tree-vrp1-details" } */
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8
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9 struct f {
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10 int i;
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11 };
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12
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13 int
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14 foo (struct f *p)
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15 {
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16 if (p != 0)
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17 if (&p->i != 0)
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18 return 123;
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19 return 0;
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20 }
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21
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22 /* { dg-final { scan-tree-dump-times "Folding predicate" 1 "vrp1"} } */
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