| /* { dg-do compile } */ | |
| /* { dg-options "-O3 -mavx2 -mno-avx512f -fdump-tree-vect-details" } */ | |
| #define N 32 | |
| int foo (int *a, int n) | |
| { | |
| int sum = 1; | |
| for (int i = 0; i < 8*N + 4; ++i) | |
| sum += a[i]; | |
| return sum; | |
| } | |
| /* The reduction epilog should be vectorized and the accumulator | |
| re-used. */ | |
| /* { dg-final { scan-tree-dump "LOOP EPILOGUE VECTORIZED" "vect" } } */ | |
| /* { dg-final { scan-assembler-times "psrl" 2 } } */ | |
| /* { dg-final { scan-assembler-times "padd" 5 } } */ |