[Bug rtl-optimization/97972] [10/11/12/13 Regression] ICE in moving_insn_creates_bookkeeping_block_p, at sel-sched.c:2031 since r9-2064-gc4c5ad1d6d1e1e1f

[gscfq--- via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97972

--- Comment #7 from G. Steinmetz <gs...@t-online.de> ---
It gives an ICE for some target processors like -mtune=skylake,
but not for others like -mtune=sandybridge :


$ gcc-13-20230212 -c 20161124-1.c -O2 -mtune=skylake -fsanitize=undefined
-fvar-tracking-assignments -fselective-scheduling2
cc1: warning: var-tracking-assignments changes selective scheduling
during RTL pass: sched2
20161124-1.c: In function 'foo':
20161124-1.c:22:1: internal compiler error: Segmentation fault
   22 | }
      | ^
0xf295ff crash_signal
        ../../gcc/toplev.cc:314
0xeda737 moving_insn_creates_bookkeeping_block_p
        ../../gcc/sel-sched.cc:2031
0xeda737 moveup_expr
        ../../gcc/sel-sched.cc:2199
#...