[Bug target/93611] New: [10 Regression] ICE in extract_constrain_insn_cached, at recog.c:2207 since r10-6451-gb7b3378f91c0641f

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93611

            Bug ID: 93611
           Summary: [10 Regression] ICE in extract_constrain_insn_cached,
                    at recog.c:2207 since r10-6451-gb7b3378f91c0641f
           Product: gcc
           Version: 9.2.1
            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
  Target Milestone: ---
              Host: x86_64-linux-gnu

I see the following ICE:

$ gcc /home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/vect/pr58508.c
-fira-algorithm=priority -O3 -mtune=bonnell -c
/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/vect/pr58508.c: In function
‘test5’:
/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/vect/pr58508.c:67:1: error:
insn does not satisfy its constraints:
   67 | }
      | ^
(insn 30 29 17 2 (parallel [
            (set (reg/f:DI 4 si [orig:87 _25 ] [87])
                (plus:DI (reg/f:DI 4 si [orig:87 _25 ] [87])
                    (const_int 400000 [0x61a80])))
            (clobber (reg:CC 17 flags))
        ]) 186 {*adddi_1}
     (expr_list:REG_UNUSED (reg:CC 17 flags)
        (nil)))
during RTL pass: sched2
/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/vect/pr58508.c:67:1: internal
compiler error: in extract_constrain_insn_cached, at recog.c:2207
0x120b73b _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
        /home/marxin/Programming/gcc/gcc/rtl-error.c:108
0x120b79b _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
        /home/marxin/Programming/gcc/gcc/rtl-error.c:118
0x11a5631 extract_constrain_insn_cached(rtx_insn*)
        /home/marxin/Programming/gcc/gcc/recog.c:2207
0x1e3e69f insn_default_latency_atom(rtx_insn*)
        /home/marxin/Programming/gcc/gcc/config/i386/i386.md:13997
0x21bab8a insn_sched_cost(rtx_insn*)
        /home/marxin/Programming/gcc/gcc/haifa-sched.c:1421
0x21bb1aa priority
        /home/marxin/Programming/gcc/gcc/haifa-sched.c:1616
0x21c8627 set_priorities(rtx_insn*, rtx_insn*)
        /home/marxin/Programming/gcc/gcc/haifa-sched.c:7148
0x1231edd compute_priorities()
        /home/marxin/Programming/gcc/gcc/sched-rgn.c:3029
0x123215e schedule_region
        /home/marxin/Programming/gcc/gcc/sched-rgn.c:3122
0x123335e schedule_insns()
        /home/marxin/Programming/gcc/gcc/sched-rgn.c:3522
0x1233c6b rest_of_handle_sched2
        /home/marxin/Programming/gcc/gcc/sched-rgn.c:3746
0x1233e32 execute
        /home/marxin/Programming/gcc/gcc/sched-rgn.c:3882
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