merge of '178eac00dc5aa8338d42e8e203633bec7817bbf6'
[vuplus_openembedded] / packages / gcc / gcc-4.3.0 / pr34130.patch
1 Index: gcc-4.1.2/gcc/fold-const.c
2 ===================================================================
3 --- gcc-4.1.2.orig/gcc/fold-const.c     2007-11-21 18:53:42.000000000 +0100
4 +++ gcc-4.1.2/gcc/fold-const.c  2007-11-21 18:56:26.000000000 +0100
5 @@ -5339,7 +5339,10 @@
6              }
7            break;
8          }
9 -      /* FALLTHROUGH */
10 +   /* If the constant is negative, we cannot simplify this.  */
11 +   if (tree_int_cst_sgn (c) == -1)
12 +     break;
13 +   /* FALLTHROUGH */
14      case NEGATE_EXPR:
15        if ((t1 = extract_muldiv (op0, c, code, wide_type)) != 0)
16         return fold_build1 (tcode, ctype, fold_convert (ctype, t1));