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Fix PR42988: handle unknown_dependence.

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2010-02-07  Sebastian Pop  <sebastian.pop@amd.com>

	PR middle-end/42988
	* graphite-dependences.c (dependence_polyhedron): Set PDDR_KIND
	to unknown_dependence.
	(graphite_legal_transform_dr): Handle the unknown_dependence.
	(graphite_carried_dependence_level_k): Same.

	* testsuite/libgomp.graphite/force-parallel-5.c: Un-XFAILed.
	* testsuite/libgomp.graphite/pr41118.c: Renamed from pr4118.

From-SVN: r156582
This commit is contained in:
Sebastian Pop 2010-02-07 19:49:06 +00:00 • committed by Sebastian Pop
parent 45489e99d6
commit 8d2220b234
5 changed files with 36 additions and 2 deletions
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8
gcc/ChangeLog.graphite
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@ -1,3 +1,11 @@
2010-02-07 Sebastian Pop <sebastian.pop@amd.com>
PR middle-end/42988
* graphite-dependences.c (dependence_polyhedron): Set PDDR_KIND
to unknown_dependence.
(graphite_legal_transform_dr): Handle the unknown_dependence.
(graphite_carried_dependence_level_k): Same.
2010-02-07 Sebastian Pop <sebastian.pop@amd.com>
* ChangeLog.graphite: Remove testsuite/ or gcc/testsuite/.

23
gcc/graphite-dependences.c
View file

@ -603,6 +603,11 @@ dependence_polyhedron (poly_dr_p pdr1, poly_dr_p pdr2,
res = new_poly_ddr (pdr1, pdr2, ddp, original_scattering_p);
if (!(pdr_read_p (pdr1) && pdr_read_p (pdr2))
&& PDR_BASE_OBJECT_SET (pdr1) != PDR_BASE_OBJECT_SET (pdr2)
&& poly_drs_may_alias_p (pdr1, pdr2))
PDDR_KIND (res) = unknown_dependence;
if (original_scattering_p)
*x = res;
@ -669,7 +674,9 @@ graphite_legal_transform_dr (poly_dr_p pdr1, poly_dr_p pdr2)
i.e. the transform should reverse no dependences, and so PT, the
reversed transformed PDDR, should have no constraint from PO. */
opddr = dependence_polyhedron (pdr1, pdr2, 1, true);
tpddr = dependence_polyhedron (pdr1, pdr2, -1, false);
if (PDDR_KIND (opddr) == unknown_dependence)
return false;
/* There are no dependences between PDR1 and PDR2 in the original
version of the program, or after the transform, so the
@ -677,6 +684,14 @@ graphite_legal_transform_dr (poly_dr_p pdr1, poly_dr_p pdr2)
if (pddr_is_empty (opddr))
return true;
tpddr = dependence_polyhedron (pdr1, pdr2, -1, false);
if (PDDR_KIND (tpddr) == unknown_dependence)
{
free_poly_ddr (tpddr);
return false;
}
if (pddr_is_empty (tpddr))
{
free_poly_ddr (tpddr);
@ -792,6 +807,12 @@ graphite_carried_dependence_level_k (poly_dr_p pdr1, poly_dr_p pdr2,
bool empty_p;
poly_ddr_p pddr = dependence_polyhedron (pdr1, pdr2, 1, false);
if (PDDR_KIND (pddr) == unknown_dependence)
{
free_poly_ddr (pddr);
return true;
}
if (pddr_is_empty (pddr))
{
free_poly_ddr (pddr);

5
libgomp/ChangeLog.graphite
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@ -1,3 +1,8 @@
2010-02-07 Sebastian Pop <sebastian.pop@amd.com>
* testsuite/libgomp.graphite/force-parallel-5.c: Un-XFAILed.
* testsuite/libgomp.graphite/pr41118.c: Renamed from pr4118.
2009-10-09 Sebastian Pop <sebastian.pop@amd.com>
* testsuite/libgomp.graphite/graphite.exp (PARALLEL_CFLAGS): Add

2
libgomp/testsuite/libgomp.graphite/force-parallel-5.c
View file

@ -34,6 +34,6 @@ int main(void)
/* { dg-final { scan-tree-dump-times "2 loops carried no dependency" 1 "graphite" } } */
/* { dg-final { cleanup-tree-dump "graphite" } } */
/* { dg-final { scan-tree-dump-times "loopfn.0" 5 "optimized" } } */
/* { dg-final { scan-tree-dump-times "loopfn.1" 5 "optimized" { xfail *-*-* } } } */
/* { dg-final { scan-tree-dump-times "loopfn.1" 5 "optimized" } } */
/* { dg-final { cleanup-tree-dump "parloops" } } */
/* { dg-final { cleanup-tree-dump "optimized" } } */

0
libgomp/testsuite/libgomp.graphite/pr4118.c → libgomp/testsuite/libgomp.graphite/pr41118.c
View file