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