From 0c46ead21939657b03cd8c383afc8dec6fba8def Mon Sep 17 00:00:00 2001
From: Jan Hubicka <jh@suse.cz>
Date: Fri, 16 Nov 2012 11:37:25 +0100
Subject: [PATCH] re PR tree-optimization/54717 (Runtime regression: polyhedron
test "rnflow" degraded)
PR tree-optimization/54717
* tree-ssa-pre.c (do_partial_partial_insertion): Consider also edges
with ANTIC_IN.
From-SVN: r193553
---
gcc/ChangeLog | 6 ++++++
gcc/tree-ssa-pre.c | 5 +++--
2 files changed, 9 insertions(+), 2 deletions(-)
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index c784188a2672..b0c8ad37079c 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2012-11-16 Jan Hubicka <jh@suse.cz>
+
+ PR tree-optimization/54717
+ * tree-ssa-pre.c (do_partial_partial_insertion): Consider also edges
+ with ANTIC_IN.
+
2012-11-16 Uros Bizjak <ubizjak@gmail.com>
* config/i386/i386-protos.h (ix86_emit_mode_set): Add third argument.
diff --git a/gcc/tree-ssa-pre.c b/gcc/tree-ssa-pre.c
index 191de51b75d2..6876dd4c5b75 100644
--- a/gcc/tree-ssa-pre.c
+++ b/gcc/tree-ssa-pre.c
@@ -3525,7 +3525,8 @@ do_partial_partial_insertion (basic_block block, basic_block dom)
may cause regressions on the speed path. */
FOR_EACH_EDGE (succ, ei, block->succs)
{
- if (bitmap_set_contains_value (PA_IN (succ->dest), val))
+ if (bitmap_set_contains_value (PA_IN (succ->dest), val)
+ || bitmap_set_contains_value (ANTIC_IN (succ->dest), val))
{
if (optimize_edge_for_speed_p (succ))
do_insertion = true;
@@ -3539,7 +3540,7 @@ do_partial_partial_insertion (basic_block block, basic_block dom)
fprintf (dump_file, "Skipping partial partial redundancy "
"for expression ");
print_pre_expr (dump_file, expr);
- fprintf (dump_file, " (%04d), not partially anticipated "
+ fprintf (dump_file, " (%04d), not (partially) anticipated "
"on any to be optimized for speed edges\n", val);
}
}
--
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