diff options
| -rw-r--r-- | contrib/gcc/fold-const.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/contrib/gcc/fold-const.c b/contrib/gcc/fold-const.c index 5db1d84..ea16eae 100644 --- a/contrib/gcc/fold-const.c +++ b/contrib/gcc/fold-const.c @@ -5661,6 +5661,9 @@ extract_muldiv_1 (tree t, tree c, enum tree_code code, tree wide_type, } break; } + /* 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, strict_overflow_p)) |
