1 /* { dg-require-effective-target vect_float } */
2
3 #include <stdarg.h>
4 #include "tree-vect.h"
5
6 #define N 256
7
8 __attribute__ ((noinline))
bar(float * pa,float * pb,float * pc)9 void bar (float *pa, float *pb, float *pc)
10 {
11 int i;
12
13 /* check results: */
14 for (i = 0; i < N; i++)
15 {
16 if (pa[i] != (pb[i] * pc[i]))
17 abort ();
18 }
19
20 return;
21 }
22
23 __attribute__ ((noinline)) int
main1(int n,float * __restrict__ pa,float * __restrict__ pb,float * __restrict__ pc)24 main1 (int n, float * __restrict__ pa, float * __restrict__ pb, float * __restrict__ pc)
25 {
26 int i;
27
28 for (i = 0; i < n; i++)
29 {
30 pa[i] = pb[i] * pc[i];
31 }
32
33 bar (pa,pb,pc);
34
35 return 0;
36 }
37
38 /* Unaligned pointer accesses, with unknown alignment.
39 The loop bound is unknown.
40 No aliasing problems.
41 vect-44.c is similar to this one with one difference:
42 the loop bound is known.
43 vect-51.c is similar to this one with one difference:
44 can't prove that pointers don't alias. */
45
main(void)46 int main (void)
47 {
48 int i;
49 float a[N];
50 float b[N] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57};
51 float c[N] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19};
52
53 check_vect ();
54
55 main1 (N,a,b,c);
56 return 0;
57 }
58
59 /* For targets that don't support misaligned loads and don't support
60 misaligned stores we version for the all three accesses (peeling to
61 align the store will not force the two loads to be aligned). */
62
63 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
64 /* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 2 "vect" { xfail { vect_no_align && { ! vect_hw_misalign } } } } } */
65 /* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 2 "vect" { target vect_hw_misalign } } } */
66 /* { dg-final { scan-tree-dump-times "Alignment of access forced using peeling" 1 "vect" { xfail { { vect_no_align && { ! vect_hw_misalign } } || {! vector_alignment_reachable} } } } } */
67 /* { dg-final { scan-tree-dump-times "Alignment of access forced using versioning." 3 "vect" { target { vect_no_align && { ! vect_hw_misalign } } } } } */
68 /* { dg-final { scan-tree-dump-times "Alignment of access forced using versioning." 1 "vect" { target { {! vector_alignment_reachable} && { {! vect_no_align } && {! vect_hw_misalign } } } } } } */
69