diff options
Diffstat (limited to 'gcc/fold-const.c')
| -rw-r--r-- | gcc/fold-const.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/gcc/fold-const.c b/gcc/fold-const.c index 0bc8226..65a6d85 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -1511,13 +1511,15 @@ fold_convert (t, arg1) /* Indicate an overflow if (1) ARG1 already overflowed, or (2) force_fit_type indicates an overflow. Tell force_fit_type that an overflow has already occurred - if ARG1 is a too-large unsigned value and T is signed. */ + if ARG1 is a too-large unsigned value and T is signed. + But don't indicate an overflow if converting a pointer. */ TREE_OVERFLOW (t) = (TREE_OVERFLOW (arg1) - | force_fit_type (t, - (TREE_INT_CST_HIGH (arg1) < 0 - & (TREE_UNSIGNED (type) - < TREE_UNSIGNED (TREE_TYPE (arg1)))))); + || (force_fit_type (t, + (TREE_INT_CST_HIGH (arg1) < 0 + & (TREE_UNSIGNED (type) + < TREE_UNSIGNED (TREE_TYPE (arg1))))) + && TREE_CODE (TREE_TYPE (arg1)) != POINTER_TYPE)); TREE_CONSTANT_OVERFLOW (t) = TREE_OVERFLOW (t) | TREE_CONSTANT_OVERFLOW (arg1); } |