From: Bernd Schmidt <bernds@codesourcery.com>
Date: Thu, 9 Jun 2011 13:55:41 +0000 (+0000)
Subject: re PR target/48673 (GCC generates WAW and RAW conflicts on IA64.)
X-Git-Tag: releases/gcc-4.7.0~6125
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=547fdef870a84b90382a9de0bf4aa9e85ba1003a;p=thirdparty%2Fgcc.git

re PR target/48673 (GCC generates WAW and RAW conflicts on IA64.)

	PR target/48673
	* config/ia64/ia64.c (ia64_reorg): Clear BB_DISABLE_SCHEDULE flag
	in all basic blocks.

From-SVN: r174844
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index b2251e94e630..cbc85ee7a8e0 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2011-06-09  Bernd Schmidt  <bernds@codesourcery.com>
+
+	PR target/48673
+	* config/ia64/ia64.c (ia64_reorg): Clear BB_DISABLE_SCHEDULE flag
+	in all basic blocks.
+
 2011-06-09  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 
 	* config/alpha/netbsd.h (ENABLE_EXECUTE_STACK): Remove.
diff --git a/gcc/config/ia64/ia64.c b/gcc/config/ia64/ia64.c
index d6eeb3d70699..b8ffc14debdc 100644
--- a/gcc/config/ia64/ia64.c
+++ b/gcc/config/ia64/ia64.c
@@ -9394,9 +9394,15 @@ ia64_reorg (void)
   if (optimize && flag_schedule_insns_after_reload
       && dbg_cnt (ia64_sched2))
     {
+      basic_block bb;
       timevar_push (TV_SCHED2);
       ia64_final_schedule = 1;
 
+      /* We can't let modulo-sched prevent us from scheduling any bbs,
+	 since we need the final schedule to produce bundle information.  */
+      FOR_EACH_BB (bb)
+	bb->flags &= ~BB_DISABLE_SCHEDULE;
+
       initiate_bundle_states ();
       ia64_nop = make_insn_raw (gen_nop ());
       PREV_INSN (ia64_nop) = NEXT_INSN (ia64_nop) = NULL_RTX;