From: Vladimir Makarov <vmakarov@redhat.com>
Date: Wed, 20 Oct 2010 14:06:08 +0000 (+0000)
Subject: re PR fortran/42169 (gfortran.dg/pr41928.f90:47: internal compiler error: in store_ca... 
X-Git-Tag: releases/gcc-4.4.6~305
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=56c290afa562b654ce421bffee14f3dda7b60d1a;p=thirdparty%2Fgcc.git

re PR fortran/42169 (gfortran.dg/pr41928.f90:47: internal compiler error: in store_can_be_removed_p, at ira-emit.c:371)

2010-10-20  Vladimir Makarov  <vmakarov@redhat.com>

	PR fortran/42169
	* ira-emit.c (store_can_be_removed_p): Return false instead of
	gcc_unreachable.

From-SVN: r165724
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index aff534d49fde..063345d43fa0 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2010-10-20  Vladimir Makarov  <vmakarov@redhat.com>
+
+	PR fortran/42169
+	* ira-emit.c (store_can_be_removed_p): Return false instead of
+	gcc_unreachable.
+
 2010-10-18  Jakub Jelinek  <jakub@redhat.com>
 
 	PR middle-end/46019
diff --git a/gcc/ira-emit.c b/gcc/ira-emit.c
index 1d4d8ea224ff..fdf07d269d3c 100644
--- a/gcc/ira-emit.c
+++ b/gcc/ira-emit.c
@@ -368,7 +368,8 @@ store_can_be_removed_p (ira_allocno_t src_allocno, ira_allocno_t dest_allocno)
 	   prohibit removal of the store in such complicated case.  */
 	return false;
     }
-  gcc_unreachable ();
+  /* It is actually a loop entry -- do not remove the store.  */
+  return false;
 }
 
 /* Generate and attach moves to the edge E.  This looks at the final