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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
/
pr20490.c
1
/* { dg-do compile } */
2
/* { dg-options "-O -ftree-pre" } */
3
static int
a
;
4
static int
b
;
5
6
typedef
int
gint
;
7
8
int
blah
()
9
{
10
gint x
=
a
;
11
gint y
=
b
;
12
13
x
*= (
x
<
0
) ? -
1
:
0
;
14
y
*= (
y
<
0
) ? -
1
:
0
;
15
16
return
(
y
*
x
);
17
18
}
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20