https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97264
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jsm28 at gcc dot gnu.org,
| |rguenth at gcc dot gnu.org
Target Milestone|--- |11.0
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
a-t5.c.036t.fre1:ipa-modref: in __vfscanf_internal__/1, call to read_int/0 does
not clobber f 2->2
a-t5.c.036t.fre1:ipa-modref: in __vfscanf_internal__/1, call to read_int/0 does
not clobber f 2->2
I think this is 'const char *' vs. 'const unsigned char *' being TBAA
incompatible. Changing read_int to take 'const char *pstr' fixes
things (and changing the type in __vfscanf_internal__ as well).
So this seems to be a latent bug in glibc unless somehow C makes those
pointers magically compatible wrt TBAA. Joseph?
