| /* { dg-require-effective-target vect_float } */ |
| |
| #include <stdarg.h> |
| #include "tree-vect.h" |
| |
| #define N 256 |
| |
| __attribute__ ((noinline)) |
| void bar (float *pa, float *pb, float *pc) |
| { |
| int i; |
| |
| /* check results: */ |
| for (i = 0; i < N; i++) |
| { |
| if (pa[i] != (pb[i] * pc[i])) |
| abort (); |
| } |
| |
| return; |
| } |
| |
| /* Unaligned pointer accesses, with unknown alignment. |
| The loop bound is known and divisible by the vectorization factor. |
| No aliasing problems. |
| vect-50.c is similar to this one with one difference: |
| the loop bound is unknown. |
| vect-45.c is similar to this one with one difference: |
| can't prove that pointers don't alias. */ |
| |
| __attribute__ ((noinline)) int |
| main1 (float * __restrict__ pa, float * __restrict__ pb, float * __restrict__ pc) |
| { |
| int i; |
| |
| for (i = 0; i < N; i++) |
| { |
| pa[i] = pb[i] * pc[i]; |
| } |
| |
| bar (pa,pb,pc); |
| |
| return 0; |
| } |
| |
| int main (void) |
| { |
| int i; |
| float a[N+4] __attribute__ ((__aligned__(16))); |
| float b[N+4] __attribute__ ((__aligned__(16))) = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57,60,63,66,69}; |
| float c[N+4] __attribute__ ((__aligned__(16))) = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23}; |
| |
| check_vect (); |
| |
| main1 (a,b,c); |
| main1 (&a[1],b,c); |
| main1 (a,&b[1],c); |
| main1 (&a[1],&b[1],&c[1]); |
| |
| return 0; |
| } |
| |
| /* For targets that don't support misaligned loads we version for the |
| all three accesses (peeling to align the store will not force the |
| two loads to be aligned). */ |
| |
| /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */ |
| /* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 2 "vect" { xfail vect_no_align } } } */ |
| /* { dg-final { scan-tree-dump-times "Alignment of access forced using peeling" 1 "vect" { xfail { vect_no_align || {! vector_alignment_reachable} } } } } */ |
| /* { dg-final { scan-tree-dump-times "Alignment of access forced using versioning." 3 "vect" { target vect_no_align } } } */ |
| /* { dg-final { scan-tree-dump-times "Alignment of access forced using versioning." 1 "vect" { target { {! vector_alignment_reachable} && {! vect_no_align} } } } } */ |
| /* { dg-final { cleanup-tree-dump "vect" } } */ |