[Bug target/88609] New: [avr] ice: insn does not satisfy its constraints while building libgcc

[dinuxbg at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88609

            Bug ID: 88609
           Summary: [avr] ice: insn does not satisfy its constraints while
                    building libgcc
           Product: gcc
           Version: 9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: dinuxbg at gmail dot com
                CC: avr at gjlay dot de, chertykov at gmail dot com
  Target Milestone: ---
              Host: x86_64
            Target: avr
             Build: x86_64

I noticed that libgcc for avr in current master (r267421) cannot be built due
to internal compiler error.

$ /home/dinux/projects/avr/testbot-workspace/gcc-build/./gcc/xgcc
-B/home/dinux/projects/avr/testbot-workspace/gcc-build/./gcc/
-B/home/dinux/projects/avr/testbot-workspace/opt/avr/bin/
-B/home/dinux/projects/avr/testbot-workspace/opt/avr/lib/ -isystem
/home/dinux/projects/avr/testbot-workspace/opt/avr/include -isystem
/home/dinux/projects/avr/testbot-workspace/opt/avr/sys-include    -g -O2
-mmcu=avr25 -O2  -g -O2 -DIN_GCC  -DCROSS_DIRECTORY_STRUCTURE  -W -Wall
-Wno-narrowing -Wwrite-strings -Wcast-qual -Wstrict-prototypes
-Wmissing-prototypes -Wold-style-definition  -isystem ./include   -DDF=SF
-Dinhibit_libc -mcall-prologues -Os -g -DIN_LIBGCC2 -fbuilding-libgcc
-fno-stack-protector -Dinhibit_libc  -DDF=SF -Dinhibit_libc -mcall-prologues
-Os -I. -I. -I../../.././gcc
-I/home/dinux/projects/avr/testbot-workspace/gcc/libgcc
-I/home/dinux/projects/avr/testbot-workspace/gcc/libgcc/.
-I/home/dinux/projects/avr/testbot-workspace/gcc/libgcc/../gcc
-I/home/dinux/projects/avr/testbot-workspace/gcc/libgcc/../include 
-DHAVE_CC_TLS -DUSE_EMUTLS -o _divsc3.o -MT _divsc3.o -MD -MP -MF _divsc3.dep
-DL_divsc3 -c /home/dinux/projects/avr/testbot-workspace/gcc/libgcc/libgcc2.c
-fvisibility=hidden -DHIDE_EXPORTS
/home/dinux/projects/avr/testbot-workspace/gcc/libgcc/libgcc2.c: In function
'__divsc3':
/home/dinux/projects/avr/testbot-workspace/gcc/libgcc/libgcc2.c:2089:1: error:
insn does not satisfy its constraints:
 2089 | }
      | ^
(jump_insn 1579 17 23 2 (set (pc)
        (if_then_else (eq (zero_extract:HI (reg:QI 24 r24 [205])
                    (const_int 1 [0x1])
                    (const_int 7 [0x7]))
                (const_int 0 [0]))
            (label_ref 675)
            (pc)))
"/home/dinux/projects/avr/testbot-workspace/gcc/libgcc/libgcc2.c":2046:6 154
{*addsi3.lt0}
     (nil)
 -> 675)
during RTL pass: cprop_hardreg
/home/dinux/projects/avr/testbot-workspace/gcc/libgcc/libgcc2.c:2089:1:
internal compiler error: in extract_constrain_insn, at recog.c:2206
0x5f31ab _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
        /home/dinux/projects/avr/testbot-workspace/gcc/gcc/rtl-error.c:108
0x5f31d1 _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
        /home/dinux/projects/avr/testbot-workspace/gcc/gcc/rtl-error.c:118
0x5f18db extract_constrain_insn(rtx_insn*)
        /home/dinux/projects/avr/testbot-workspace/gcc/gcc/recog.c:2206
0xbb6000 copyprop_hardreg_forward_1
        /home/dinux/projects/avr/testbot-workspace/gcc/gcc/regcprop.c:801
0xbb6d4c execute
        /home/dinux/projects/avr/testbot-workspace/gcc/gcc/regcprop.c:1307


Here is the script I'm using to build the avr toolchain:
https://github.com/dinuxbg/gnupru/blob/master/testing/buildbot-avr.sh

The gcc config line I've used: 
   --target=avr --enable-languages=c,c++ --disable-nls --disable-libssp
--with-dwarf2