[Bug target/87040] New: ICE in extract_constrain_insn_cached, at recog.c:2218

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87040

            Bug ID: 87040
           Summary: ICE in extract_constrain_insn_cached, at recog.c:2218
           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: segher at gcc dot gnu.org
  Target Milestone: ---
              Host: x86_64-linux-gnu
            Target: ppc64le-linux-gnu

Following ICEs:

$ ./xgcc -B.
/home/marxin/Programming/gcc/gcc/testsuite/gcc.c-torture/compile/20030605-1.c
-fif-conversion2 -Og
/home/marxin/Programming/gcc/gcc/testsuite/gcc.c-torture/compile/20030605-1.c:
In function ‘set_bh_page’:
/home/marxin/Programming/gcc/gcc/testsuite/gcc.c-torture/compile/20030605-1.c:12:1:
error: insn does not satisfy its constraints:
12 | }
   | ^
(insn 25 0 0 (set (reg:DI 121)
        (const_int 4095 [0xfff])) 441 {*movdi_internal64}
     (nil))
during RTL pass: ce3
/home/marxin/Programming/gcc/gcc/testsuite/gcc.c-torture/compile/20030605-1.c:12:1:
internal compiler error: in extract_constrain_insn_cached, at recog.c:2218
0xfa3b95 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
        /home/marxin/Programming/gcc/gcc/rtl-error.c:108
0xfa3bf9 _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
        /home/marxin/Programming/gcc/gcc/rtl-error.c:118
0xf47798 extract_constrain_insn_cached(rtx_insn*)
        /home/marxin/Programming/gcc/gcc/recog.c:2218
0x17b165d insn_default_length(rtx_insn*)
        /home/marxin/Programming/gcc/gcc/config/rs6000/rs6000.md:6831
0xb90531 get_attr_length_1
        /home/marxin/Programming/gcc/gcc/final.c:407
0xb90566 get_attr_length(rtx_insn*)
        /home/marxin/Programming/gcc/gcc/final.c:425
0x14fb201 rs6000_insn_cost
        /home/marxin/Programming/gcc/gcc/config/rs6000/rs6000.c:34085
0xfb2b71 insn_cost(rtx_insn*, bool)
        /home/marxin/Programming/gcc/gcc/rtlanal.c:5435
0xb574bb canonicalize_comparison(machine_mode, rtx_code*, rtx_def**)
        /home/marxin/Programming/gcc/gcc/expmed.c:6249
0xeab7af prepare_cmp_insn
        /home/marxin/Programming/gcc/gcc/optabs.c:3816
0xeafb35 gen_cond_trap(rtx_code, rtx_def*, rtx_def*, rtx_def*)
        /home/marxin/Programming/gcc/gcc/optabs.c:5288
0x1a5960f find_cond_trap
        /home/marxin/Programming/gcc/gcc/ifcvt.c:4657
0x1a58840 find_if_header
        /home/marxin/Programming/gcc/gcc/ifcvt.c:4282
0x1a5b381 if_convert
        /home/marxin/Programming/gcc/gcc/ifcvt.c:5405
0x1a5b801 execute
        /home/marxin/Programming/gcc/gcc/ifcvt.c:5599