diff options
Diffstat (limited to 'gcc/fold-const.c')
| -rw-r--r-- | gcc/fold-const.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/gcc/fold-const.c b/gcc/fold-const.c index 4113dc45b21..25756bbb9c9 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -5736,17 +5736,17 @@ extract_muldiv_1 (tree t, tree c, enum tree_code code, tree wide_type, || BINARY_CLASS_P (op0) || VL_EXP_CLASS_P (op0) || EXPRESSION_CLASS_P (op0)) - /* ... and is unsigned, and its type is smaller than ctype, - then we cannot pass through as widening. */ - && ((TYPE_UNSIGNED (TREE_TYPE (op0)) + /* ... and has wrapping overflow, and its type is smaller + than ctype, then we cannot pass through as widening. */ + && ((TYPE_OVERFLOW_WRAPS (TREE_TYPE (op0)) && ! (TREE_CODE (TREE_TYPE (op0)) == INTEGER_TYPE && TYPE_IS_SIZETYPE (TREE_TYPE (op0))) - && (GET_MODE_SIZE (TYPE_MODE (ctype)) - > GET_MODE_SIZE (TYPE_MODE (TREE_TYPE (op0))))) + && (TYPE_PRECISION (ctype) + > TYPE_PRECISION (TREE_TYPE (op0)))) /* ... or this is a truncation (t is narrower than op0), then we cannot pass through this narrowing. */ - || (GET_MODE_SIZE (TYPE_MODE (type)) - < GET_MODE_SIZE (TYPE_MODE (TREE_TYPE (op0)))) + || (TYPE_PRECISION (type) + < TYPE_PRECISION (TREE_TYPE (op0))) /* ... or signedness changes for division or modulus, then we cannot pass through this conversion. */ || (code != MULT_EXPR |