[Bug target/82975] New: ICE in baseness at rtlanal.c:6220

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82975

            Bug ID: 82975
           Summary: ICE in baseness at rtlanal.c:6220
           Product: gcc
           Version: 7.0
            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: amker at gcc dot gnu.org
  Target Milestone: ---
              Host: x86_64-linux-gnu
            Target: arm-linux-gnueabi-gcc

Following can be seen with cross-compiler:

$ arm-linux-gnueabi-gcc
/home/marxin/Programming/gcc/gcc/testsuite/gcc.target/i386/pr78904-6.c
/dev/null -mtune=cortex-a57 -fno-sched-pressure -O3
during RTL pass: sched1
/home/marxin/Programming/gcc/gcc/testsuite/gcc.target/i386/pr78904-6.c: In
function ‘foo’:
/home/marxin/Programming/gcc/gcc/testsuite/gcc.target/i386/pr78904-6.c:20:1:
internal compiler error: Segmentation fault
 }
 ^
0xb692af crash_signal
        .././../gcc/toplev.c:325
0xaff79d baseness
        .././../gcc/rtlanal.c:6220
0xb075c9 decompose_normal_address
        .././../gcc/rtlanal.c:6290
0xb075c9 decompose_address(address_info*, rtx_def**, machine_mode, unsigned
char, rtx_code)
        .././../gcc/rtlanal.c:6336
0x1256745 analyze_set_insn_for_autopref
        .././../gcc/haifa-sched.c:5535
0x1256932 analyze_set_insn_for_autopref
        .././../gcc/haifa-sched.c:5621
0x1256932 autopref_multipass_init
        .././../gcc/haifa-sched.c:5621
0x12601ea autopref_multipass_dfa_lookahead_guard(rtx_insn*, int)
        .././../gcc/haifa-sched.c:5734
0x126a8d9 choose_ready
        .././../gcc/haifa-sched.c:6121
0x126a8d9 schedule_block(basic_block_def**, void*)
        .././../gcc/haifa-sched.c:6763
0xb1034a schedule_region
        .././../gcc/sched-rgn.c:3174
0xb1034a schedule_insns()
        .././../gcc/sched-rgn.c:3513
0xb10863 schedule_insns()
        .././../gcc/sched-rgn.c:3498
0xb10863 rest_of_handle_sched
        .././../gcc/sched-rgn.c:3717
0xb10863 execute
        .././../gcc/sched-rgn.c:3825