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omp-offload.c (oacc_xform_loop): Enable SIMD vectorization on non-SIMT targets in acc vector loops.

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gcc/
	* omp-offload.c (oacc_xform_loop): Enable SIMD vectorization on
	non-SIMT targets in acc vector loops.

From-SVN: r252928
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Cesar Philippidis 2017-09-18 07:15:37 -07:00 committed by Cesar Philippidis
parent 7c22e69045
commit f64b12bd15
2 changed files with 30 additions and 0 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2017-09-18 Cesar Philippidis <cesar@codesourcery.com>
* omp-offload.c (oacc_xform_loop): Enable SIMD vectorization on
non-SIMT targets in acc vector loops.
2017-09-18 Claudiu Zissulescu <claziss@synopsys.com>
* configure.ac: Add arc and check if assembler supports gdwarf2.

25
gcc/omp-offload.c
View File

@ -51,6 +51,7 @@ along with GCC; see the file COPYING3. If not see
#include "intl.h"
#include "stringpool.h"
#include "attribs.h"
#include "cfgloop.h"
/* Describe the OpenACC looping structure of a function. The entire
function is held in a 'NULL' loop. */
@ -370,6 +371,30 @@ oacc_xform_loop (gcall *call)
break;
case IFN_GOACC_LOOP_OFFSET:
/* Enable vectorization on non-SIMT targets. */
if (!targetm.simt.vf
&& outer_mask == GOMP_DIM_MASK (GOMP_DIM_VECTOR)
/* If not -fno-tree-loop-vectorize, hint that we want to vectorize
the loop. */
&& (flag_tree_loop_vectorize
|| !global_options_set.x_flag_tree_loop_vectorize))
{
basic_block bb = gsi_bb (gsi);
struct loop *parent = bb->loop_father;
struct loop *body = parent->inner;
parent->force_vectorize = true;
parent->safelen = INT_MAX;
/* "Chunking loops" may have inner loops. */
if (parent->inner)
{
body->force_vectorize = true;
body->safelen = INT_MAX;
}
cfun->has_force_vectorize_loops = true;
}
if (striding)
{
r = oacc_thread_numbers (true, mask, &seq);