[Bug rtl-optimization/97684] [11 Regression] ICE in reg_preferred_class, at reginfo.c:789 by r11-4577

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97684

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[11 Regression] ICE in      |[11 Regression] ICE in
                   |reg_preferred_class, at     |reg_preferred_class, at
                   |reginfo.c:789               |reginfo.c:789 by r11-4577
                 CC|                            |vmakarov at redhat dot com

--- Comment #4 from H.J. Lu <hjl.tools at gmail dot com> ---
It is caused by

commit 44fbc9c6e02ca5b8f98f25b514ed7588e7ba733d
Author: Vladimir N. Makarov <vmakarov@redhat.com>
Date:   Fri Oct 30 15:05:22 2020 -0400

    Take insn scratch RA requirements into account in IRA.