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x86: Tune Skylake, Cannonlake and Icelake as Haswell
[official-gcc.git]
/
gcc
/
testsuite
/
gcc.c-torture
/
execute
/
20020213-1.c
blob
f9fefee26f76fd03477e79124799917bbbcb3886
1
/* PR c/5681
2
This testcase failed on IA-32 at -O0, because safe_from_p
3
incorrectly assumed it is safe to first write into a.a2 b-1
4
and then read the original value from it. */
5
6
int
bar
(
float
);
7
8
struct
A
{
9
float
a1
;
10
int
a2
;
11
}
a
;
12
13
int
b
;
14
15
void
foo
(
void
)
16
{
17
a
.
a2
=
bar
(
a
.
a1
);
18
a
.
a2
=
a
.
a2
<
b
-
1
?
a
.
a2
:
b
-
1
;
19
if
(
a
.
a2
>=
b
-
1
)
20
abort
();
21
}
22
23
int
bar
(
float
x
)
24
{
25
return
2241
;
26
}
27
28
int
main
()
29
{
30
a
.
a1
=
1.0
f
;
31
b
=
3384
;
32
foo
();
33
return
0
;
34
}