| /* { dg-do compile } */ |
| /* { dg-require-effective-target powerpc_p8vector_ok } */ |
| /* { dg-options "-mdejagnu-cpu=power8 -O3 -ffast-math" } */ |
| /* { dg-final { scan-assembler "lxvd2x" } } */ |
| /* { dg-final { scan-assembler-not "xxpermdi" } } */ |
| |
| /* Verify that swap optimization works correctly in the presence of |
| a V4SFmode reduction. */ |
| |
| extern double optvalue; |
| extern void obfuscate (float, unsigned int); |
| |
| void |
| foo (float *x, float *y, unsigned int n, unsigned int m) |
| { |
| unsigned int i, j; |
| float sacc; |
| for (j = 0; j < m; ++j) |
| { |
| sacc = 0.0f; |
| for (i = 0; i < n; ++i) |
| sacc += x[i] * y[i]; |
| obfuscate (sacc, n); |
| } |
| optvalue = n * 2.0f * m; |
| } |
