diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 39a29831a34..c9b88a9f058 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2010-08-04  Richard Guenther  <rguenther@suse.de>
+
+	PR middle-end/45176
+	* expr.c (expand_expr_real_1): Also preserve TARGET_MEM_REF
+	points-to set for original MEM_REF.
+
 2010-08-04  Richard Guenther  <rguenther@suse.de>
 
 	* tree-ssa-ccp.c (get_constant_value): New function.
diff --git a/gcc/expr.c b/gcc/expr.c
index f0a3b9caa40..9134d6215b2 100644
--- a/gcc/expr.c
+++ b/gcc/expr.c
@@ -8665,7 +8665,7 @@ expand_expr_real_1 (tree exp, rtx target, enum machine_mode tmode,
 	set_mem_addr_space (temp, as);
 	base = get_base_address (TMR_ORIGINAL (exp));
 	if (base
-	    && INDIRECT_REF_P (base)
+	    && (INDIRECT_REF_P (base) || TREE_CODE (base) == MEM_REF)
 	    && TMR_BASE (exp)
 	    && TREE_CODE (TMR_BASE (exp)) == SSA_NAME
 	    && POINTER_TYPE_P (TREE_TYPE (TMR_BASE (exp))))