25 lines
520 B
C
25 lines
520 B
C
/* { dg-do compile } */
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/* { dg-options "-fno-strict-overflow -O2 -fdump-tree-optimized" } */
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/* We cannot fold i > 0 because p->a - p->b can be larger than INT_MAX
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and thus i can wrap. Dual of Wstrict-overflow-18.c */
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struct c { unsigned int a; unsigned int b; };
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extern void bar (struct c *);
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int
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foo (struct c *p)
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{
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int i;
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int sum = 0;
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for (i = 0; i < p->a - p->b; ++i)
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{
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if (i > 0)
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sum += 2;
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bar (p);
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}
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return sum;
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}
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/* { dg-final { scan-tree-dump "i_.* > 0" "optimized" } } */
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