[Bug target/120294] Missed DCE with xor when emulating __builtin_ctzg() with __builtin_ctz() and bitshift

[ubizjak at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120294

Uroš Bizjak <ubizjak at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |DUPLICATE
             Status|UNCONFIRMED                 |RESOLVED

--- Comment #3 from Uroš Bizjak <ubizjak at gmail dot com> ---
The clearing xor is intentional, please see 62011 for details (lzcnt has the
same problem as popcnt).

*** This bug has been marked as a duplicate of bug 62011 ***