From: Michael Matz <matz@suse.de>
Date: Fri, 29 Apr 2005 18:39:22 +0000 (+0000)
Subject: re PR rtl-optimization/21144 (Apparent infinite loop in reload)
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=a68b179c86764d41292502567a7b1252f4e57eae;p=gcc.git

re PR rtl-optimization/21144 (Apparent infinite loop in reload)

        PR rtl-optimization/21144
        * postreload.c (reload_cse_move2add): Check for VOIDmode.

From-SVN: r99008
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index bc9b0e6fbce..b95a20a1be1 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2005-04-29  Michael Matz  <matz@suse.de>
+
+	PR rtl-optimization/21144
+	* postreload.c (reload_cse_move2add): Check for VOIDmode.
+
 2005-04-29  Bob Wilson  <bob.wilson@acm.org>
 
 	* config/xtensa/xtensa.h (OPTIMIZATION_OPTIONS): Define to disable
diff --git a/gcc/postreload.c b/gcc/postreload.c
index 16cb818d59b..3d9b24bd113 100644
--- a/gcc/postreload.c
+++ b/gcc/postreload.c
@@ -1269,7 +1269,8 @@ reload_cse_move2add (rtx first)
 		    {
 		      enum machine_mode narrow_mode;
 		      for (narrow_mode = GET_CLASS_NARROWEST_MODE (MODE_INT);
-			   narrow_mode != GET_MODE (reg);
+			   narrow_mode != VOIDmode
+			   && narrow_mode != GET_MODE (reg);
 			   narrow_mode = GET_MODE_WIDER_MODE (narrow_mode))
 			{
 			  if (have_insn_for (STRICT_LOW_PART, narrow_mode)