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re PR tree-optimization/46966 (ICE: in execute_cse_reciprocals, at tree-ssa-math-opts.c:474 with -floop-interchange -fno-tree-copy-prop -fno-tree-loop-im)

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PR tree-optimization/46966
	* graphite-sese-to-poly.c (build_scop_drs): Call free_gimple_bb for
	for bbs that are removed from SCOP_BBS vector.

	* gcc.dg/graphite/pr46966.c: New test.

From-SVN: r167960
This commit is contained in:
Jakub Jelinek 2010-12-16 23:45:42 +01:00 committed by Jakub Jelinek
parent 9c8cbc740a
commit 7470b8fc5e
4 changed files with 25 additions and 0 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2010-12-16 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/46966
* graphite-sese-to-poly.c (build_scop_drs): Call free_gimple_bb for
for bbs that are removed from SCOP_BBS vector.
2010-12-16 Eric Botcazou <ebotcazou@adacore.com>
* tree-ssa-sccvn.c (vn_reference_lookup_3): Always punt if the call to

1
gcc/graphite-sese-to-poly.c
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@ -1971,6 +1971,7 @@ build_scop_drs (scop_p scop)
for (i = 0; VEC_iterate (poly_bb_p, SCOP_BBS (scop), i, pbb); i++)
if (VEC_empty (data_reference_p, GBB_DATA_REFS (PBB_BLACK_BOX (pbb))))
{
free_gimple_bb (PBB_BLACK_BOX (pbb));
VEC_ordered_remove (poly_bb_p, SCOP_BBS (scop), i);
i--;
}

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2010-12-16 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/46966
* gcc.dg/graphite/pr46966.c: New test.
2010-12-16 Eric Botcazou <ebotcazou@adacore.com>
* gnat.dg/opt13.adb: New test.

13
gcc/testsuite/gcc.dg/graphite/pr46966.c Normal file
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@ -0,0 +1,13 @@
/* PR tree-optimization/46966 */
/* { dg-do compile } */
/* { dg-options "-O -floop-interchange -ffast-math -fno-tree-copy-prop -fno-tree-loop-im" } */
int a[1000][1000];
void foo ()
{
int i, j;
for (i = 0; i < 1000; i++)
for (j = 0; j < 1000; j++)
a[i][j] = 0;
}