diff options
| author | kenner <kenner@138bc75d-0d04-0410-961f-82ee72b054a4> | 2000-10-20 17:51:52 +0000 |
|---|---|---|
| committer | kenner <kenner@138bc75d-0d04-0410-961f-82ee72b054a4> | 2000-10-20 17:51:52 +0000 |
| commit | 708d43038f35d7052bd303a4042f9c74b9f69519 (patch) | |
| tree | 0179fd011caa1eb6eecaae68b203054a3ee3c1c4 /gcc/cp | |
| parent | d37bb15e7513b5aff2c62eac53cc657d12c003ff (diff) | |
| download | gcc-708d43038f35d7052bd303a4042f9c74b9f69519.tar.gz | |
* fold-const.c (force_fit_type): Unsigned values can overflow
if they are sizetype.
(int_const_binop): Don't use cache if overflows.
* cp/typeck.c (dubious_conversion_warning): Suppress if
TYPE_IS_SIZETYPE.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@36970 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/cp')
| -rw-r--r-- | gcc/cp/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/cp/typeck.c | 11 |
2 files changed, 14 insertions, 1 deletions
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog index cd6fafa7cc1..3c2e244fb90 100644 --- a/gcc/cp/ChangeLog +++ b/gcc/cp/ChangeLog @@ -1,3 +1,7 @@ +Fri Oct 20 13:54:59 2000 Richard Kenner <kenner@vlsi1.ultra.nyu.edu> + + * typeck.c (dubious_conversion_warning): Suppress if TYPE_IS_SIZETYPE. + 2000-10-20 Jeffrey Oldham <oldham@codesourcery.com> * decl.c (revert_static_member_fn): Fixed typo. diff --git a/gcc/cp/typeck.c b/gcc/cp/typeck.c index c26580836c8..d72d8e6c00d 100644 --- a/gcc/cp/typeck.c +++ b/gcc/cp/typeck.c @@ -6353,7 +6353,16 @@ dubious_conversion_warnings (type, expr, errtype, fndecl, parmnum) cp_warning ("%s of negative value `%E' to `%T'", errtype, expr, type); } - overflow_warning (expr); + + /* Suppress warning for a sizetype since we never used to issue it. + ??? This needs to be looked at more carefully someday. */ + if (TREE_CODE (expr) == INTEGER_CST + && TREE_CODE (TREE_TYPE (expr)) == INTEGER_TYPE + && TYPE_IS_SIZETYPE (TREE_TYPE (expr))) + TREE_OVERFLOW (expr) = TREE_CONSTANT_OVERFLOW (expr) = 0; + else + overflow_warning (expr); + if (TREE_CONSTANT (expr)) expr = fold (expr); } |