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

--- a/gcc/fold-const.c
+++ b/gcc/fold-const.c
@@ -5339,7 +5339,10 @@ extract_muldiv_1 (tree t, tree c, enum t
             }
           break;
         }
-      /* FALLTHROUGH */
+   /* If the constant is negative, we cannot simplify this.  */
+   if (tree_int_cst_sgn (c) == -1)
+     break;
+   /* FALLTHROUGH */
     case NEGATE_EXPR:
       if ((t1 = extract_muldiv (op0, c, code, wide_type)) != 0)
 	return fold_build1 (tcode, ctype, fold_convert (ctype, t1));
gcc: refresh patches for gcc 4.1.2 git-svn-id: svn://svn.openwrt.org/openwrt/trunk@14554 3c298f89-4303-0410-b956-a3cf2f4a3e73 2009-02-18 20:11:04 +02:00			`--- a/gcc/fold-const.c`
			`+++ b/gcc/fold-const.c`
			`@@ -5339,7 +5339,10 @@ extract_muldiv_1 (tree t, tree c, enum t`
add gcc eabi patches from #3988 git-svn-id: svn://svn.openwrt.org/openwrt/trunk@14072 3c298f89-4303-0410-b956-a3cf2f4a3e73 2009-01-17 21:18:16 +02:00			`}`
			`break;`
			`}`
			`- /* FALLTHROUGH */`
			`+ /* If the constant is negative, we cannot simplify this. */`
			`+ if (tree_int_cst_sgn (c) == -1)`
			`+ break;`
			`+ /* FALLTHROUGH */`
			`case NEGATE_EXPR:`
			`if ((t1 = extract_muldiv (op0, c, code, wide_type)) != 0)`
			`return fold_build1 (tcode, ctype, fold_convert (ctype, t1));`