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Fix gcc_assert in expand_omp_for_static_chunk

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2015-09-03  Tom de Vries  <tom@codesourcery.com>

	PR tree-optimization/65637
	* omp-low.c (expand_omp_for_static_chunk): Fix gcc_assert for the case
	that head is NULL.

	* gcc.dg/autopar/pr46099-2.c: New test.

From-SVN: r227436
This commit is contained in:
Tom de Vries 2015-09-03 11:01:05 +00:00 committed by Tom de Vries
parent 8cba6b9527
commit 8050766eae
4 changed files with 17 additions and 1 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2015-09-03 Tom de Vries <tom@codesourcery.com>
PR tree-optimization/65637
* omp-low.c (expand_omp_for_static_chunk): Fix gcc_assert for the case
that head is NULL.
2015-09-03 Tom de Vries <tom@codesourcery.com>
* omp-low.c (expand_omp_for_static_chunk): Handle simple latch bb.

2
gcc/omp-low.c
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@ -7326,7 +7326,7 @@ expand_omp_for_static_chunk (struct omp_region *region,
locus = redirect_edge_var_map_location (vm);
add_phi_arg (nphi, redirect_edge_var_map_def (vm), re, locus);
}
gcc_assert (gsi_end_p (psi) && i == head->length ());
gcc_assert (gsi_end_p (psi) && (head == NULL || i == head->length ()));
redirect_edge_var_map_clear (re);
while (1)
{

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2015-09-03 Tom de Vries <tom@codesourcery.com>
PR tree-optimization/65637
* gcc.dg/autopar/pr46099-2.c: New test.
2015-09-03 Naveen H.S <Naveen.Hurugalawadi@caviumnetworks.com>
PR middle-end/67351

5
gcc/testsuite/gcc.dg/autopar/pr46099-2.c Normal file
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@ -0,0 +1,5 @@
/* PR tree-optimization/46099. */
/* { dg-do compile } */
/* { dg-options "-ftree-parallelize-loops=2 -fcompare-debug -O --param parloops-chunk-size=100" } */
#include "pr46099.c"