22 lines
584 B
C
22 lines
584 B
C
/* { dg-do compile } */
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/* { dg-options "-fno-strict-overflow -O2 -fdump-tree-optimized" } */
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/* Source: Ian Lance Taylor. */
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/* VRP test. We can not simplify the conditional when not using
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strict overflow semantics. We don't test this with
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-fstrict-overflow because it turns into an infinite loop. That is
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OK but it would also be OK to not do that. */
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int
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foo ()
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{
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int i, bits;
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for (i = 1, bits = 1; i > 0; i += i)
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++bits;
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return bits;
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}
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/* { dg-final { scan-tree-dump "return bits" "optimized" } } */
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/* { dg-final { cleanup-tree-dump "optimized" } } */
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