mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-26 00:41:17 +00:00
15 lines
466 B
Diff
15 lines
466 B
Diff
--- 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));
|