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[official-gcc.git] / gomp-20050608-branch / gcc / testsuite / gcc.dg / vect / vect-52.c
blobbddbc83796526f7e0e74c43d25a49ee9ea79e0e6
1 /* { dg-require-effective-target vect_float } */
3 #include <stdarg.h>
4 #include "tree-vect.h"
6 #define N 256
8 /* Unaligned pointer read accesses, aligned write access.
9 The loop bound is unknown.
10 No aliasing problems.
11 vect-60.c is similar to this one with one difference:
12 the alignment of the read accesses is known.
13 vect-48.c is similar to this one with one difference:
14 the loop bound is known.
15 vect-53.c is similar to this one with one difference:
16 aliasing is a problem. */
18 int
19 main1 (int n, float *pb, float *pc)
21 float pa[N] __attribute__ ((__aligned__(16)));
22 int i;
24 for (i = 0; i < n; i++)
26 pa[i] = pb[i] * pc[i];
29 /* check results: */
30 for (i = 0; i < N; i++)
32 if (pa[i] != (pb[i] * pc[i]))
33 abort ();
36 return 0;
39 int main (void)
41 int i;
42 float a[N] __attribute__ ((__aligned__(16)));
43 float b[N+1] __attribute__ ((__aligned__(16))) = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57,60};
44 float c[N+1] __attribute__ ((__aligned__(16))) = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20};
46 check_vect ();
48 main1 (N,&b[1],c);
49 main1 (N,&b[1],&c[1]);
51 return 0;
54 /* For targets that don't support misaligned loads we version for the two loads.
55 (The store is aligned). */
57 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
58 /* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 2 "vect" { xfail vect_no_align } } } */
59 /* { dg-final { scan-tree-dump-times "Alignment of access forced using peeling" 0 "vect" } } */
60 /* { dg-final { scan-tree-dump-times "Alignment of access forced using versioning." 2 "vect" { target vect_no_align } } } */
61 /* { dg-final { cleanup-tree-dump "vect" } } */