blob: 43200bb20bc4bcdc726d4018c19123697a4f115b (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
|
/* { 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;
}
/* { dg-final { scan-tree-dump "return bits" "optimized" } } */
/* { dg-final { cleanup-tree-dump "optimized" } } */
|
