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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
/
vrp29.c
1
/* { dg-do run } */
2
/* { dg-options "-O2" } */
3
#include <limits.h>
4
5
extern
void
abort
(
void
);
6
7
void
decCompareOp
(
int
result
)
8
{
9
if
(
result
!= (
int
) (
INT_MAX
+
1U
))
10
{
11
result
= -
result
;
12
if
(
result
!= (
int
) (
INT_MAX
+
2U
))
13
abort
();
14
}
15
}
16
17
int
main
()
18
{
19
decCompareOp
(
INT_MAX
);
20
return
0
;
21
}