[Bug c/69760] Wrong 64-bit memory address caused by an unneeded overflowing 32-bit integer multiplication on x86_64 under -O2 and -O3 code optimization

jakub at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Thu Feb 11 08:26:00 GMT 2016


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69760

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
   Last reconfirmed|                            |2016-02-11
                 CC|                            |jakub at gcc dot gnu.org
         Resolution|INVALID                     |---
     Ever confirmed|0                           |1

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Actually, -fsanitize=undefined reports nothing here, and -fno-ivopts fixes it.


More information about the Gcc-bugs mailing list