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
30
31
|
/* { dg-do compile */
/* { dg-options "-O2 -ffp-contract=off -ftree-vectorize" } */
/* { dg-final { scan-assembler "fpmpy" } } */
/* fpma and fpms will show in either way because there are no
specific vector add/sub instructions. So we just check for fpmpy. */
#define N 16
extern bar(float *, float *, float *, float *);
void foo()
{
int i;
float a[N], b[N], c[N], d[N];
bar(a,b,c,d);
for (i = 0; i < N; i++) {
a[i] = b[i] + c[i] * d[i];
}
bar(a,b,c,d);
for (i = 0; i < N; i++) {
a[i] = b[i] - c[i] * d[i];
}
bar(a,b,c,d);
for (i = 0; i < N; i++) {
a[i] = b[i] * c[i] + d[i];
}
bar(a,b,c,d);
for (i = 0; i < N; i++) {
a[i] = b[i] * c[i] - d[i];
}
bar(a,b,c,d);
}
|
