diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 70c18bae38cc..c39a1a7cd0a9 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2011-10-03  Jakub Jelinek  <jakub@redhat.com>
+
+	PR tree-optimization/50587
+	* tree-ssa-reassoc.c (init_range_entry): Stop iterating when
+	arg0 is not a SSA_NAME.
+
 2011-10-03  Richard Sandiford  <rdsandiford@googlemail.com>
 
 	* ipa-inline-analysis.c (MAX_TIME): Update comment.
diff --git a/gcc/tree-ssa-reassoc.c b/gcc/tree-ssa-reassoc.c
index f7c21e70eb86..554ba3abe762 100644
--- a/gcc/tree-ssa-reassoc.c
+++ b/gcc/tree-ssa-reassoc.c
@@ -1648,6 +1648,8 @@ init_range_entry (struct range_entry *r, tree exp)
 
       code = gimple_assign_rhs_code (stmt);
       arg0 = gimple_assign_rhs1 (stmt);
+      if (TREE_CODE (arg0) != SSA_NAME)
+	break;
       arg1 = gimple_assign_rhs2 (stmt);
       exp_type = TREE_TYPE (exp);
       loc = gimple_location (stmt);