https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65610
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |hubicka at gcc dot gnu.org
Component|sanitizer |tree-optimization
Target Milestone|--- |5.0
Summary|Compare debug failure with |[5 Regression] Compare
|-g3 -fsanitize=undefined |debug failure with -g3
|-fno-sanitize=vptr -O3 |-fsanitize=undefined
| |-fno-sanitize=vptr -O3
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Seems to be a bug somewhere in ipa-polymorphic-call.c.
In particular, it seems noncall_stmt_may_be_vtbl_ptr_store returns different
results between -g0 and -g - the function apparently walks BLOCKs and
apparently with -g we have in there BLOCK_ABSTRACT_ORIGIN of some inlined dtor,
while for -g0 something has optimized the blocks away.
Honza, can you please have a look?
