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authorrakdver <rakdver@138bc75d-0d04-0410-961f-82ee72b054a4>2007-04-09 06:51:43 +0000
committerrakdver <rakdver@138bc75d-0d04-0410-961f-82ee72b054a4>2007-04-09 06:51:43 +0000
commitd8a0d6b8af37fd836425e5d8e2f510c7e8753bd5 (patch)
treef5af72013d20563b8340bcf3462e935b8ad07bef /gcc/tree-scalar-evolution.c
parent85c11f8971a88d45613596396aa8215103fbdd1c (diff)
downloadgcc-d8a0d6b8af37fd836425e5d8e2f510c7e8753bd5.tar.gz
* cfgloopmanip.c (create_preheader): Do not use loop_preheader_edge.
(create_preheaders): Check that loops are available. (fix_loop_structure): Clean up, improve comments. * tree-ssa-loop-manip.c (rewrite_into_loop_closed_ssa): Check that loops are available. Set LOOP_CLOSED_SSA to the loops state flags. * tree-scalar-evolution.c (scev_finalize): Clear scalar_evolution_info. * predict.c (tree_estimate_probability): Do not call calculate_dominance_info. Call create_preheaders. * tree-cfgcleanup.c (cleanup_tree_cfg_loop): Only call rewrite_into_loop_closed_ssa if LOOP_CLOSED_SSA is set in loops state flags. * cfgloop.c (loop_preheader_edge): Assert that loops have preheaders. * cfgloop.h (LOOP_CLOSED_SSA): New constant. * tree-cfg.c (tree_split_edge): Make an assert more precise. * tree-ssa-threadedge.c (thread_across_edge): Comment the function arguments. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@123670 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/tree-scalar-evolution.c')
-rw-r--r--gcc/tree-scalar-evolution.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/gcc/tree-scalar-evolution.c b/gcc/tree-scalar-evolution.c
index 846d27414d5..955240b6895 100644
--- a/gcc/tree-scalar-evolution.c
+++ b/gcc/tree-scalar-evolution.c
@@ -2862,6 +2862,7 @@ scev_finalize (void)
{
htab_delete (scalar_evolution_info);
BITMAP_FREE (already_instantiated);
+ scalar_evolution_info = NULL;
}
/* Replace ssa names for that scev can prove they are constant by the