https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102291
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|dubious overflow warning |[9/10/11/12 Regression]
| |wrong overflow warning for
| |compound expression
| |conversion and bit_and
| |expressions
Known to work|9.4.0 |4.1.2
Known to fail| |4.4.7
Target Milestone|--- |9.5
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I don't think this really a regression from GCC 9 but rather a regression from
a long time ago.
Take:
typedef unsigned long ulong;
typedef unsigned char uchar;
ulong testera(ulong ul) {
return ((((uchar) (((void)0, ((uchar) (0x80)))|0)) & 0x3f));
}
----- CUT ----
This is slightly different from your teststcase but it warns all the way back
until sometime before 4.4.0 (I only can test 4.1.2).
