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slp-reduc-7.c: New testcase.

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2015-05-27  Richard Biener  <rguenther@suse.de>

	* gcc.dg/vect/slp-reduc-7.c: New testcase.

From-SVN: r223756
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Richard Biener 2015-05-27 13:50:50 +00:00 committed by Richard Biener
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gcc/testsuite/ChangeLog
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2015-05-27 Richard Biener <rguenther@suse.de>
* gcc.dg/vect/slp-reduc-7.c: New testcase.
2015-05-27 Honggyu Kim <hong.gyu.kim@lge.com>
PR target/65358

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gcc/testsuite/gcc.dg/vect/slp-reduc-7.c Normal file
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/* { dg-require-effective-target vect_int } */
#include <stdarg.h>
#include "tree-vect.h"
#define N 32
unsigned int ub[N] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,
0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45};
unsigned int uc[N] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};
/* Vectorization of reduction using loop-aware SLP (with two copies). */
__attribute__ ((noinline))
int main1 (int n, int res0, int res1, int res2, int res3,
int res4, int res5, int res6, int res7)
{
int i;
unsigned int udiff0 = 5, udiff1 = 10, udiff2 = 20, udiff3 = 30;
unsigned int udiff4 = 45, udiff5 = 50, udiff6 = 60, udiff7 = 70;
for (i = 0; i < n; i++) {
udiff7 += (ub[8*i + 7] - uc[8*i + 7]);
udiff6 += (ub[8*i + 6] - uc[8*i + 6]);
udiff5 += (ub[8*i + 5] - uc[8*i + 5]);
udiff4 += (ub[8*i + 4] - uc[8*i + 4]);
udiff3 += (ub[8*i + 3] - uc[8*i + 3]);
udiff2 += (ub[8*i + 2] - uc[8*i + 2]);
udiff1 += (ub[8*i + 1] - uc[8*i + 1]);
udiff0 += (ub[8*i] - uc[8*i]);
}
/* Check results: */
if (udiff0 != res0
|| udiff1 != res1
|| udiff2 != res2
|| udiff3 != res3
|| udiff4 != res4
|| udiff5 != res5
|| udiff6 != res6
|| udiff7 != res7)
abort ();
return 0;
}
int main (void)
{
check_vect ();
main1 (N/8, 37, 50, 68, 86, 109, 122, 140, 158);
main1 (N/8 - 1, 21, 32, 48, 64, 85, 96, 112, 128);
return 0;
}
/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { xfail vect_no_int_add } } } */
/* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 1 "vect" { xfail vect_no_int_add } } } */
/* { dg-final { cleanup-tree-dump "vect" } } */