diff options
Diffstat (limited to 'gcc/fold-const.c')
| -rw-r--r-- | gcc/fold-const.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/gcc/fold-const.c b/gcc/fold-const.c index 0170b88daef..7dbbadd859b 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -554,7 +554,8 @@ fold_negate_expr (location_t loc, tree t) case INTEGER_CST: tem = fold_negate_const (t, type); if (TREE_OVERFLOW (tem) == TREE_OVERFLOW (t) - || !TYPE_OVERFLOW_TRAPS (type)) + || (!TYPE_OVERFLOW_TRAPS (type) + && (flag_sanitize & SANITIZE_SI_OVERFLOW) == 0)) return tem; break; @@ -611,7 +612,9 @@ fold_negate_expr (location_t loc, tree t) break; case NEGATE_EXPR: - return TREE_OPERAND (t, 0); + if (!TYPE_OVERFLOW_SANITIZED (type)) + return TREE_OPERAND (t, 0); + break; case PLUS_EXPR: if (!HONOR_SIGN_DEPENDENT_ROUNDING (TYPE_MODE (type)) |