https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97684
Uroš Bizjak <ubizjak at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Component|target |rtl-optimization
Ever confirmed|0 |1
Last reconfirmed| |2020-12-27
Status|UNCONFIRMED |NEW
--- Comment #2 from Uroš Bizjak <ubizjak at gmail dot com> ---
Confirmed as rtl-optimization PR.
Backtrace:
#2 0x00000000006ac7a0 in reg_preferred_class (regno=regno@entry=170) at
../../git/gcc/gcc/reginfo.c:794
#3 0x0000000000bebf37 in update_equiv_regs () at ../../git/gcc/gcc/ira.c:3521
#4 0x0000000000bf23fb in ira (f=<optimized out>) at
../../git/gcc/gcc/ira.c:5554
where in reg_preferred_class, an assert is triggered:
789 reg_preferred_class (int regno)
790 {
791 if (reg_pref == 0)
792 return GENERAL_REGS;
793
794 gcc_assert (regno < reg_info_size);
795 return (enum reg_class) reg_pref[regno].prefclass;
796 }
(gdb) p regno
$4 = 170
(gdb) p reg_info_size
$5 = 167
where regno is outside reg_info_size.
