gcc/libgomp/testsuite/libgomp.oacc-c-c++-common/collapse-4.c
Chung-Lin Tang 2c71d454eb re PR middle-end/70895 (OpenACC: loop reduction does not work. Output is zero.)
2016-08-18  Chung-Lin Tang  <cltang@codesourcery.com>

	PR middle-end/70895
	gcc/
	* gimplify.c (omp_add_variable): Adjust/add variable mapping on
	enclosing parallel construct for reduction variables on OpenACC loop
	directives.

	gcc/testsuite/
	* gfortran.dg/goacc/loop-tree-1.f90: Add gimple scan-tree-dump test.
	* c-c++-common/goacc/reduction-1.c: Likewise.
	* c-c++-common/goacc/reduction-2.c: Likewise.
	* c-c++-common/goacc/reduction-3.c: Likewise.
	* c-c++-common/goacc/reduction-4.c: Likewise.

	libgomp/
	* testsuite/libgomp.oacc-fortran/reduction-7.f90: Add explicit
	firstprivate clauses.
	* testsuite/libgomp.oacc-fortran/reduction-6.f90: Remove explicit
	copy clauses.
	* testsuite/libgomp.oacc-c-c++-common/reduction-7.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/reduction-cplx-flt.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/reduction-flt.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/collapse-2.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/loop-red-wv-1.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/collapse-4.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/loop-red-v-1.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/reduction-cplx-dbl.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/loop-red-g-1.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/loop-red-gwv-1.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/loop-red-w-1.c: Likewise.
	* testsuite/libgomp.oacc-c-c++-common/reduction-dbl.c: Likewise.

From-SVN: r239576
2016-08-18 14:46:19 +00:00

28 lines
374 B
C

/* { dg-do run } */
#include <string.h>
int
main (void)
{
int l = 0;
int b[3][3];
int i, j;
memset (b, '\0', sizeof (b));
#pragma acc parallel copy(b[0:3][0:3])
{
#pragma acc loop collapse(2) reduction(+:l)
for (i = 0; i < 2; i++)
for (j = 0; j < 2; j++)
if (b[i][j] != 16)
l += 1;
}
if (l != 2 * 2)
__builtin_abort();
return 0;
}