2010-04-06 Richard Guenther <rguenther@suse.de>

[pf3gnuchains/gcc-fork.git] / gcc / fold-const.c

diff --git a/gcc/fold-const.c b/gcc/fold-const.c
index 8dd68c2..e79d934 100644 (file)
--- a/gcc/fold-const.c
+++ b/gcc/fold-const.c
@@ -9576,7 +9576,9 @@ fold_comparison (location_t loc, enum tree_code code, tree type,
       tree variable1 = TREE_OPERAND (arg0, 0);
       enum tree_code cmp_code = code;
 
-      gcc_assert (!integer_zerop (const1));
+      /* Handle unfolded multiplication by zero.  */
+      if (integer_zerop (const1))
+       return fold_build2_loc (loc, cmp_code, type, const1, const2);
 
       fold_overflow_warning (("assuming signed overflow does not occur when "
                              "eliminating multiplication in comparison "