From 0d9e7a5e1514e20af3a2eb2e89739f2d362f482a Mon Sep 17 00:00:00 2001 From: rakdver Date: Thu, 7 Oct 2004 06:14:15 +0000 Subject: PR tree-optimization/17806 * cfghooks.c (split_edge): Update IRREDUCIBLE_LOOP flags. * cfgloopmanip.c (loop_split_edge_with): Updating of IRREDUCIBLE_LOOP flags moved to split_edge. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@88665 138bc75d-0d04-0410-961f-82ee72b054a4 --- gcc/cfghooks.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'gcc/cfghooks.c') diff --git a/gcc/cfghooks.c b/gcc/cfghooks.c index e6a624c3550..948c2b4c13d 100644 --- a/gcc/cfghooks.c +++ b/gcc/cfghooks.c @@ -389,6 +389,7 @@ split_edge (edge e) gcov_type count = e->count; int freq = EDGE_FREQUENCY (e); edge f; + bool irr = (e->flags & EDGE_IRREDUCIBLE_LOOP) != 0; if (!cfg_hooks->split_edge) internal_error ("%s does not support split_edge.", cfg_hooks->name); @@ -399,6 +400,13 @@ split_edge (edge e) EDGE_SUCC (ret, 0)->probability = REG_BR_PROB_BASE; EDGE_SUCC (ret, 0)->count = count; + if (irr) + { + ret->flags |= BB_IRREDUCIBLE_LOOP; + EDGE_PRED (ret, 0)->flags |= EDGE_IRREDUCIBLE_LOOP; + EDGE_SUCC (ret, 0)->flags |= EDGE_IRREDUCIBLE_LOOP; + } + if (dom_computed[CDI_DOMINATORS]) set_immediate_dominator (CDI_DOMINATORS, ret, EDGE_PRED (ret, 0)->src); -- cgit v1.2.1