From: Jeffrey A Law <law@cygnus.com>
Date: Fri, 23 Oct 1998 20:34:52 +0000 (+0000)
Subject: flow.c (life_analysis_1): Enable "rescan" code after reload.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=b590bbfd110bc151f231c3a1ea80200f2b0bb60b;p=gcc.git

flow.c (life_analysis_1): Enable "rescan" code after reload.

        * flow.c (life_analysis_1): Enable "rescan" code after reload.
        (propagate_block): Delete dead code after reload.

From-SVN: r23262
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 776236750a5..76ff258a51f 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)
 
+	* flow.c (life_analysis_1): Enable "rescan" code after reload.
+	(propagate_block): Delete dead code after reload.
+
 	* sched.c (update_flow_info): Revert Oct 19, 1998 change.  Brings
 	back Oct 15, 1998 change.  
 	* haifa-sched.c (update_flow_info): Likewise.
diff --git a/gcc/flow.c b/gcc/flow.c
index 2d3c983655f..3fecc85713e 100644
--- a/gcc/flow.c
+++ b/gcc/flow.c
@@ -1457,8 +1457,7 @@ life_analysis_1 (f, nregs)
 		 basic_block_live_at_end[i], 0, j,
 		 {
 		   consider = 1;
-		   if (!reload_completed
-		       && REGNO_REG_SET_P (basic_block_significant[i], j))
+		   if (REGNO_REG_SET_P (basic_block_significant[i], j))
 		     {
 		       must_rescan = 1;
 		       goto done;
@@ -1797,7 +1796,7 @@ propagate_block (old, first, last, final, significant, bnum)
 	     "delete" it by turning it into a NOTE of type NOTE_INSN_DELETED.
 	     We could really delete it with delete_insn, but that
 	     can cause trouble for first or last insn in a basic block.  */
-	  if (!reload_completed && final && insn_is_dead)
+	  if (final && insn_is_dead)
 	    {
 	      PUT_CODE (insn, NOTE);
 	      NOTE_LINE_NUMBER (insn) = NOTE_INSN_DELETED;