[Bug target/87213] New: ICE in final_scan_insn_1, at final.c:3070

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87213

            Bug ID: 87213
           Summary: ICE in final_scan_insn_1, at final.c:3070
           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
  Target Milestone: ---
              Host: powerpc64le-linux-gnu

Following causes ICE:

$ ./xgcc -B. /home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/ipa/pr82001.c
-mno-direct-move -O3
xgcc: warning: ‘-mno-direct-move’ is deprecated
cc1: warning: ‘-mno-direct-move’ is deprecated
/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/ipa/pr82001.c: In function
‘mulhi’:
/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/ipa/pr82001.c:19:1: error:
could not split insn
19 | }
   | ^
(insn 15 10 16 (set (reg/i:DI 3 3)
        (sign_extend:DI (reg:SI 32 0 [orig:124 a ] [124])))
"/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/ipa/pr82001.c":19 38
{extendsidi2}
     (expr_list:REG_DEAD (reg:SI 32 0 [orig:124 a ] [124])
        (nil)))
during RTL pass: final
/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/ipa/pr82001.c:19:1: internal
compiler error: in final_scan_insn_1, at final.c:3070
0x10e36a27 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
        ../../gcc/rtl-error.c:108
0x108a0cc7 final_scan_insn_1
        ../../gcc/final.c:3070
0x108a1187 final_scan_insn(rtx_insn*, _IO_FILE*, int, int, int*)
        ../../gcc/final.c:3149
0x1089dd7b final_1
        ../../gcc/final.c:2019
0x108a547f rest_of_handle_final
        ../../gcc/final.c:4660
0x108a599f execute
        ../../gcc/final.c:4734