From: Jason Merrill <jason@redhat.com>
Date: Wed, 6 Apr 2005 15:35:30 +0000 (-0400)
Subject: re PR c++/19312 (ICE in stabilize_call when throwing a copy)
X-Git-Tag: releases/gcc-3.4.4~103
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8507254b37b4b8375c5e0d396badad2db34c7fea;p=thirdparty%2Fgcc.git

re PR c++/19312 (ICE in stabilize_call when throwing a copy)

        PR c++/19312
        * tree.c (stabilize_init): Don't bother trying to stabilize
        something with no side-effects.

From-SVN: r97721
---

diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index 9a1876d68da6..f78e00e8bd7e 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,9 @@
+2005-04-06  Jason Merrill  <jason@redhat.com>
+
+	PR c++/19312
+	* tree.c (stabilize_init): Don't bother trying to stabilize
+	something with no side-effects.
+
 2005-04-04  Mark Mitchell  <mark@codesourcery.com>
 
 	PR c++/20679
diff --git a/gcc/cp/tree.c b/gcc/cp/tree.c
index 351467c79a00..2f078d145b48 100644
--- a/gcc/cp/tree.c
+++ b/gcc/cp/tree.c
@@ -2517,7 +2517,10 @@ stabilize_init (tree init, tree *initp)
       if (TREE_CODE (t) == COND_EXPR)
 	return false;
 
-      stabilize_call (t, initp);
+      /* The TARGET_EXPR might be initializing via bitwise copy from
+	 another variable; leave that alone.  */
+      if (TREE_SIDE_EFFECTS (t))
+	stabilize_call (t, initp);
     }
 
   return true;