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Add a testcase for PR target/44180.

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2010-10-13  H.J. Lu  <hongjiu.lu@intel.com>

	PR target/44180
	* gcc.target/i386/pr44180.c: New.

From-SVN: r165445
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H.J. Lu 2010-10-14 02:11:59 +00:00 committed by H.J. Lu
parent 208d8b55ac
commit 1f561f9ba4
2 changed files with 40 additions and 0 deletions
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gcc/testsuite/ChangeLog
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2010-10-13 H.J. Lu <hongjiu.lu@intel.com>
PR target/44180
* gcc.target/i386/pr44180.c: New.
2010-10-13 Jason Merrill <jason@redhat.com>
* g++.dg/template/canon-type-8.C: New.

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gcc/testsuite/gcc.target/i386/pr44180.c Normal file
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/* { dg-do run } */
/* { dg-require-effective-target avx } */
/* { dg-options "-O2 -ftree-vectorize -mavx" } */
#include "avx-check.h"
#define N 16
float b[N] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45};
float c[N] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};
float d[N] = {0,2,4,6,8,10,12,14,16,18,20,22,24,26,28,30};
static void
__attribute__ ((noinline))
avx_test ()
{
int i;
float a[N];
/* Strided access. Vectorizable on platforms that support load of strided
accesses (extract of even/odd vector elements). */
for (i = 0; i < N/2; i++)
{
a[i] = b[2*i+1] * c[2*i+1] - b[2*i] * c[2*i];
d[i] = b[2*i] * c[2*i+1] + b[2*i+1] * c[2*i];
}
/* Check results. */
for (i = 0; i < N/2; i++)
{
if (a[i] != b[2*i+1] * c[2*i+1] - b[2*i] * c[2*i]
|| d[i] != b[2*i] * c[2*i+1] + b[2*i+1] * c[2*i])
abort();
}
}