toolchain/gcc/patches/4.1.2/010-pr34130.patch

   1 --- a/gcc/fold-const.c
   2 +++ b/gcc/fold-const.c
   3 @@ -5339,7 +5339,10 @@ extract_muldiv_1 (tree t, tree c, enum t
   4              }
   5            break;
   6          }
   7 -      /* FALLTHROUGH */
   8 +   /* If the constant is negative, we cannot simplify this.  */
   9 +   if (tree_int_cst_sgn (c) == -1)
  10 +     break;
  11 +   /* FALLTHROUGH */
  12      case NEGATE_EXPR:
  13        if ((t1 = extract_muldiv (op0, c, code, wide_type)) != 0)
  14         return fold_build1 (tcode, ctype, fold_convert (ctype, t1));