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