[Bug target/104662] New: arm: ice in simd_valid_immediate

[dcb314 at hotmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104662

            Bug ID: 104662
           Summary: arm: ice in simd_valid_immediate
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: dcb314 at hotmail dot com
  Target Milestone: ---

For testsuite file ./gcc.dg/rtl/arm/mve-vxbi.c, compiled
with a recent arm cross compiler, hosted on x86, does this:

$ /home/dcb/raspberrypi/results/bin/arm-linux-gnueabihf-gcc -c
./gcc.dg/rtl/arm/mve-vxbi.c
during RTL pass: ira
./gcc.dg/rtl/arm/mve-vxbi.c: In function ‘foo’:
./gcc.dg/rtl/arm/mve-vxbi.c:27:1: internal compiler error: in
simd_valid_immedia
te, at config/arm/arm.cc:12866
   27 | }
      | ^
0x7a67f1 simd_valid_immediate
        /home/dcb/gcc/trunk.git/gcc/config/arm/arm.cc:12866
0x1375f59 simd_immediate_valid_for_move(rtx_def*, machine_mode, rtx_def**,
int*)
        /home/dcb/gcc/trunk.git/gcc/config/arm/arm.cc:12974