blob: 6a15ed0a410ef1b26789ce5d59eaa6db0b39770c (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
|
/* PR target/81294 */
/* { dg-do run } */
/* { dg-options "-O2" } */
#include <x86intrin.h>
int
main ()
{
volatile unsigned char c;
unsigned int x;
volatile unsigned int y, sum_ref;
c = 0;
x = 1;
y = 0;
sum_ref = 0x0;
/* X = 0x00000001, Y = 0x00000000, C = 0. */
c = _subborrow_u32 (c, y, x, &x);
/* X = 0xFFFFFFFF, Y = 0x00000000, C = 1. */
c = _subborrow_u32 (c, y, x, &x);
/* X = 0xFFFFFFFF, Y = 0xFFFFFFFF, C = 1. */
if (x != sum_ref)
__builtin_abort ();
return 0;
}
|