Bernhard Rosenkraenzer | c83ebe5 | 2012-09-18 21:38:03 +0159 | [diff] [blame] | 1 | /* { dg-require-effective-target vect_float } */ |
| 2 | |
| 3 | #include <stdarg.h> |
| 4 | #include "tree-vect.h" |
| 5 | |
| 6 | #define N 16 |
| 7 | |
| 8 | float fa[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))); |
| 9 | float fb[N+4] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))) = {0.0, 1.0, 2.0, 3.0, 4.0, 5.0, 7.0, 9.0, 10.0, 11.0, 12.0, 13.0, 14.0, 15.0, 16.0, 17.0, 18.0, 19.0}; |
| 10 | float fc[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))) = {0.5, 1.5, 2.5, 3.5, 4.5, 5.5, 7.5, 9.5, 10.5, 11.5, 12.5, 13.5, 14.5, 15.5}; |
| 11 | |
| 12 | /* Like vect-80.c but the pointers are not annotated as restricted, |
| 13 | and therefore can't be antialiased. */ |
| 14 | |
| 15 | __attribute__ ((noinline)) int |
| 16 | main1 (float *pa, float *pb, float *pc) |
| 17 | { |
| 18 | int i; |
| 19 | float *q = pb + 4; |
| 20 | |
| 21 | for (i = 0; i < N; i++) |
| 22 | { |
| 23 | pa[i] = q[i] * pc[i]; |
| 24 | } |
| 25 | |
| 26 | for (i = 0; i < N; i++) |
| 27 | { |
| 28 | if (pa[i] != q[i] * pc[i]) |
| 29 | abort(); |
| 30 | } |
| 31 | |
| 32 | return 0; |
| 33 | } |
| 34 | |
| 35 | |
| 36 | int main (void) |
| 37 | { |
| 38 | check_vect (); |
| 39 | |
| 40 | main1 (fa, fb, fc); |
| 41 | |
| 42 | return 0; |
| 43 | } |
| 44 | |
| 45 | /* Currently the loops fail to vectorize due to aliasing problems. |
| 46 | If/when the aliasing problems are resolved, unalignment may |
| 47 | prevent vectorization on some targets. */ |
| 48 | /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { xfail *-*-* } } } */ |
Bernhard Rosenkraenzer | 84c1139 | 2012-09-27 01:39:09 +0159 | [diff] [blame^] | 49 | /* { dg-final { scan-tree-dump-times "can't determine dependence" 1 "vect" { target { ! vect_multiple_sizes } } } } */ |
Bernhard Rosenkraenzer | c83ebe5 | 2012-09-18 21:38:03 +0159 | [diff] [blame] | 50 | /* { dg-final { scan-tree-dump-times "can't determine dependence" 2 "vect" { target vect_multiple_sizes } } } */ |
| 51 | /* { dg-final { cleanup-tree-dump "vect" } } */ |