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| author | Jeff Law <law@gcc.gnu.org> | 1997-12-11 09:26:05 -0700 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 1997-12-11 09:26:05 -0700 |
| commit | b472527b0fdc204489ee647a6752b29b1291317a (patch) | |
| tree | 14ba3dfecebffb68f2afc7348224d403c74620f6 /gcc/fold-const.c | |
| parent | c4ae3f91a2e59633859532b4e2f62b210f23b3bf (diff) | |
| download | gcc-b472527b0fdc204489ee647a6752b29b1291317a.zip gcc-b472527b0fdc204489ee647a6752b29b1291317a.tar.gz gcc-b472527b0fdc204489ee647a6752b29b1291317a.tar.bz2 | |
Another handful of gcc-2.8 changes (will it ever go out the door?).
See ChangeLog.11 for details.
From-SVN: r17040
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); } |