1 /* { dg-do compile } */
2 /* { dg-options "-O2 -ftree-vectorize -ffast-math --param aarch64-sve-compare-costs=0" } */
3
4 double
f(double * restrict a,double * restrict b,int * lookup)5 f (double *restrict a, double *restrict b, int *lookup)
6 {
7 double res = 0.0;
8 for (int i = 0; i < 512; ++i)
9 res += a[lookup[i]] * b[i];
10 return res;
11 }
12
13 /* { dg-final { scan-assembler-times {\tfmla\tz[0-9]+.d, p[0-7]/m, } 2 } } */
14 /* Check that the vector instructions are the only instructions. */
15 /* { dg-final { scan-assembler-times {\tfmla\t} 2 } } */
16 /* { dg-final { scan-assembler-not {\tfadd\t} } } */
17 /* { dg-final { scan-assembler-times {\tfaddv\td0,} 1 } } */
18 /* { dg-final { scan-assembler-not {\tsel\t} } } */
19