[Bug target/88282] New: ICE in df_install_refs at gcc/df-scan.c:2379

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88282

            Bug ID: 88282
           Summary: ICE in df_install_refs at gcc/df-scan.c:2379
           Product: gcc
           Version: 9.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: marxin at gcc dot gnu.org
                CC: ktkachov at gcc dot gnu.org, ramana at gcc dot gnu.org
  Target Milestone: ---
              Host: x86_64-pc-linux-gnu
            Target: aarch64-linux-gnu

Following causes ICE:

$ gcc /home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/pr41470.c --param
large-stack-frame=0 -Ofast -fstack-clash-protection
during RTL pass: reload
/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/pr41470.c: In function ‘bf’:
/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/pr41470.c:22:1: internal
compiler error: Segmentation fault
   22 | }
      | ^
0xa88a2f crash_signal
       
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-aarch64/build/gcc/toplev.c:326
0x7ffff6bc310f ???
       
/usr/src/debug/glibc-2.27-6.1.x86_64/signal/../sysdeps/unix/sysv/linux/x86_64/sigaction.c:0
0x7329b1 df_install_refs
       
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-aarch64/build/gcc/df-scan.c:2379
0x732a94 df_install_refs
       
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-aarch64/build/gcc/df-scan.c:2425
0x732a94 df_refs_add_to_chains
       
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-aarch64/build/gcc/df-scan.c:2425
0x738fae df_bb_refs_record(int, bool)
       
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-aarch64/build/gcc/df-scan.c:3350
0x7391bc df_scan_blocks()
       
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-aarch64/build/gcc/df-scan.c:588
0x8f127d do_reload
       
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-aarch64/build/gcc/ira.c:5533
0x8f127d execute
       
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-aarch64/build/gcc/ira.c:5653