[Bug target/107304] internal compiler error: in convert_move, at expr.cc:220 with -march=tigerlake

[hjl.tools at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107304

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2022-10-18
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |NEW

--- Comment #4 from H.J. Lu <hjl.tools at gmail dot com> ---
Since the default is -march=tigerlake, it enables AVX512 in the middle end.
When "arch=alderlake" disables AVX512, we fails to expand AVX512 to non-AVX512
ISAs. It means that target_clones can't be more restrictive than the default.
We
should provide better diagnostics.