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re PR tree-optimization/33291 (a+=2; a+=2 not simplified to a+=4; with -O3 ...
[gcc.git]
/
gcc
/
testsuite
/
gcc.dg
/
tree-ssa
/
vrp12.c
1
/* { dg-do link } */
2
/* { dg-options -O2 } */
3
4
foo
(
int
i
)
5
{
6
int
x
;
7
8
x
=
i
;
9
if
(
i
< -
10
)
10
{
11
x
=
__builtin_abs
(
i
);
12
/* VRP was incorrectly folding this to if (1). */
13
if
(
x
<
0
)
14
link_error
();
15
}
16
17
return
x
;
18
}
19
20
main
()
21
{
22
foo
(-
30
);
23
}