[Bug target/101697] New: [11/12 regression] ICE compiling uClibc-ng for h8300-linux

["mikpelinux at gmail dot com" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101697

            Bug ID: 101697
           Summary: [11/12 regression] ICE compiling uClibc-ng for
                    h8300-linux
           Product: gcc
           Version: 11.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: mikpelinux at gmail dot com
  Target Milestone: ---

Created attachment 51226
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=51226&action=edit
pre-processed source of uClibc's getaddrinfo.c

Attempting to build uClibc-ng-1.0.38 with a gcc-11.2.0 cross to
h8300-unknown-linux-uclibc fails with an ICE:

libc/inet/getaddrinfo.c: In function 'gaih_inet':
libc/inet/getaddrinfo.c:801:1: error: unrecognizable insn:
  801 | }
      | ^
(insn 1444 1443 164 31 (parallel [
            (set (mem/f:SI (pre_dec:SI (reg/f:SI 7 sp)) [3  S4 A32])
                (reg/f:SI 7 sp))
            (clobber (reg:CC 12 cc))
        ]) "libc/inet/getaddrinfo.c":466:11 -1
     (expr_list:REG_ARGS_SIZE (const_int 4 [0x4])
        (nil)))
during RTL pass: split2
libc/inet/getaddrinfo.c:801:1: internal compiler error: in extract_insn, at
recog.c:2770
0x41a6f0 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
        /mnt/scratch/cross/sources/gcc-11.2.0/gcc/rtl-error.c:108
0x41a70c _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
        /mnt/scratch/cross/sources/gcc-11.2.0/gcc/rtl-error.c:116
0x4199e8 extract_insn(rtx_insn*)
        /mnt/scratch/cross/sources/gcc-11.2.0/gcc/recog.c:2770
0x8cf1c4 extract_insn_cached(rtx_insn*)
        /mnt/scratch/cross/sources/gcc-11.2.0/gcc/recog.c:2659
0x67c782 cleanup_subreg_operands(rtx_insn*)
        /mnt/scratch/cross/sources/gcc-11.2.0/gcc/final.c:3330
0x8cd42f split_insn
        /mnt/scratch/cross/sources/gcc-11.2.0/gcc/recog.c:3399
0x8d2407 split_all_insns()
        /mnt/scratch/cross/sources/gcc-11.2.0/gcc/recog.c:3467
0x8d2498 execute
        /mnt/scratch/cross/sources/gcc-11.2.0/gcc/recog.c:4385

A gcc-12 cross also ICEs on the same location, but with a different message:

libc/inet/getaddrinfo.c: In function 'gaih_inet':
libc/inet/getaddrinfo.c:801:1: error: could not split insn
  801 | }
      | ^
(insn 163 1443 1444 (set (mem/f:SI (pre_dec:SI (reg/f:SI 7 sp)) [3  S4 A32])
        (reg/f:SI 7 sp)) "libc/inet/getaddrinfo.c":466:11 19 {*movsi}
     (expr_list:REG_ARGS_SIZE (const_int 4 [0x4])
        (nil)))
during RTL pass: final
libc/inet/getaddrinfo.c:801:1: internal compiler error: in final_scan_insn_1,
at final.c:2861
0x41abf2 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
        /mnt/scratch/cross/sources/gcc-12-20210725/gcc/rtl-error.c:108
0x40ded8 final_scan_insn_1
        /mnt/scratch/cross/sources/gcc-12-20210725/gcc/final.c:2861
0x687d9b final_scan_insn(rtx_insn*, _IO_FILE*, int, int, int*)
        /mnt/scratch/cross/sources/gcc-12-20210725/gcc/final.c:2940
0x688064 final_1
        /mnt/scratch/cross/sources/gcc-12-20210725/gcc/final.c:1997
0x688842 rest_of_handle_final
        /mnt/scratch/cross/sources/gcc-12-20210725/gcc/final.c:4285
0x688842 execute,
        /mnt/scratch/cross/sources/gcc-12-20210725/gcc/final.c:4363

gcc-10.3.0 has no problems building uClibc-1.0.38 for the h8300.

Attaching the preprocessed getaddrinfo.i. Compile with -fno-builtin and -Os,
-O2, or -O3 to trigger the ICE. Removing -fno-builtin or reducing optimization
to -Og, -O1, or -O0 stops the ICE.

The cross-compilers were configured (yes there's some redundancies there):
--target=h8300-unknown-linux-uclibc --build=x86_64-pc-linux-gnu
--prefix=/mnt/scratch/cross/cross-h8300
--with-sysroot=/mnt/scratch/cross/cross-h8300
--with-gmp=/mnt/scratch/cross/host-tools/gmp-6.2.1
--with-mpfr=/mnt/scratch/cross/host-tools/mpfr-4.1.0
--with-mpc=/mnt/scratch/cross/host-tools/mpc-1.2.1 --without-cloog
--without-isl --disable-libatomic --disable-libgomp --disable-libitm
--disable-libmpx --disable-libmudflap --disable-libquadmath
--disable-libsanitizer --disable-lto --disable-nls --disable-plugin
--disable-shared --enable-checking=release --enable-languages=c
--enable-multilib --disable-threads --disable-libssp