From: Jeffrey A Law <law@cygnus.com>
Date: Fri, 23 Oct 1998 20:25:09 +0000 (+0000)
Subject: sched.c (update_flow_info): Revert Oct 19, 1998 change.
X-Git-Tag: prereleases/libgcj-0.1~2353
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=a1ef0af4d2446643321edaee44b04c741a3ba0db;p=thirdparty%2Fgcc.git

sched.c (update_flow_info): Revert Oct 19, 1998 change.

        * sched.c (update_flow_info): Revert Oct 19, 1998 change.  Brings
        back Oct 15, 1998 change.
        * haifa-sched.c (update_flow_info): Likewise.
        * flow.c (life_analysis_1): Delete CLOBBER insns after reload.
Real fix was in flow.c...

From-SVN: r23261
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 7c0212d3e9cc..776236750a50 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -26,6 +26,9 @@ Fri Oct 23 15:34:14 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
 
 Fri Oct 23 13:12:35 1998  Jeffrey A Law  (law@cygnus.com)
 
+	* sched.c (update_flow_info): Revert Oct 19, 1998 change.  Brings
+	back Oct 15, 1998 change.  
+	* haifa-sched.c (update_flow_info): Likewise.
 	* flow.c (life_analysis_1): Delete CLOBBER insns after reload.
 
 	* mn10200.md (truncated shift): Accept constant inputs too.
diff --git a/gcc/haifa-sched.c b/gcc/haifa-sched.c
index abc45d333842..806bb396d886 100644
--- a/gcc/haifa-sched.c
+++ b/gcc/haifa-sched.c
@@ -7987,21 +7987,7 @@ update_flow_info (notes, first, last, orig_insn)
 	         register that was not needed by this instantiation of the
 	         pattern, so we can safely ignore it.  */
 	      if (insn == first)
-		{
-		  /* We have accurate death notes after reload now, but this
-		     code is still necessary.  Consider splitting a store into
-		     (subreg:DF (reg:DC) 0).  The death notes will claim the
-		     entire DCmode value is dead.  But after splitting we know
-		     that only part of it is dead.  Ie, the splitting action
-		     actually eliminated the death of one or more hard
-		     registers.  */
-		  if (reload_completed && REG_NOTE_KIND (note) == REG_DEAD)
-		    {
-		      XEXP (note, 1) = REG_NOTES (insn);
-		      REG_NOTES (insn) = note;
-		      break;
-		    }
-			
+		{			
 		  if (REG_NOTE_KIND (note) != REG_UNUSED)
 		    abort ();
 
diff --git a/gcc/sched.c b/gcc/sched.c
index ce2f248e00e6..1d81407c3f42 100644
--- a/gcc/sched.c
+++ b/gcc/sched.c
@@ -3828,21 +3828,7 @@ update_flow_info (notes, first, last, orig_insn)
 		 register that was not needed by this instantiation of the
 		 pattern, so we can safely ignore it.  */
 	      if (insn == first)
-		{
-		  /* We have accurate death notes after reload now, but this
-		     code is still necessary.  Consider splitting a store into
-		     (subreg:DF (reg:DC) 0).  The death notes will claim the
-		     entire DCmode value is dead.  But after splitting we know
-		     that only part of it is dead.  Ie, the splitting action
-		     actually eliminated the death of one or more hard
-		     registers.  */
-		  if (reload_completed && REG_NOTE_KIND (note) == REG_DEAD)
-		    {
-		      XEXP (note, 1) = REG_NOTES (insn);
-		      REG_NOTES (insn) = note;
-		      break;
-		    }
-			
+		{			
 		  if (REG_NOTE_KIND (note) != REG_UNUSED)
 		    abort ();