[Bug target/86487] [7/8/9 Regression] insn does not satisfy its constraints on arm big-endian

[oliver.stannard at arm dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86487

Oliver Stannard <oliver.stannard at arm dot com> changed:

           What    |Removed                     |Added
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                 CC|                            |oliver.stannard at arm dot com

--- Comment #6 from Oliver Stannard <oliver.stannard at arm dot com> ---
I've found a simpler reproducer for the same crash, this one uses a NEON type,
and affects little-endian as well as big-endian:

// test.c
#include <arm_neon.h>
int32x2_t b(long c, ...) {}

$ arm-none-eabi-gcc -march=armv7-a -c test.c -mfloat-abi=hard -mfpu=neon 
test.c: In function 'b':
test.c:1:1: error: insn does not satisfy its constraints:
    1 | __simd64_int32_t b(long c, ...) {}
      | ^~~~~~~~~~~~~~~~
(insn 6 11 9 2 (set (reg/i:V2SI 0 r0)
        (reg:V2SI 2 r2 [orig:110 <retval> ] [110])) "test.c":1:1 939
{*neon_movv2si}
     (nil))
during RTL pass: reload
test.c:1:1: internal compiler error: in extract_constrain_insn, at recog.c:2206
0xbaf641 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
       
/tmp/dgboter/bbs/rhev-vm1--rhe6x86_64/buildbot/rhe6x86_64--arm-none-eabi/build/src/gcc/gcc/rtl-error.c:108
0xbaf672 _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
       
/tmp/dgboter/bbs/rhev-vm1--rhe6x86_64/buildbot/rhe6x86_64--arm-none-eabi/build/src/gcc/gcc/rtl-error.c:119
0xb82846 extract_constrain_insn(rtx_insn*)
       
/tmp/dgboter/bbs/rhev-vm1--rhe6x86_64/buildbot/rhe6x86_64--arm-none-eabi/build/src/gcc/gcc/recog.c:2206
0xa6fa52 check_rtl
       
/tmp/dgboter/bbs/rhev-vm1--rhe6x86_64/buildbot/rhe6x86_64--arm-none-eabi/build/src/gcc/gcc/lra.c:2182
0xa74166 lra(_IO_FILE*)
       
/tmp/dgboter/bbs/rhev-vm1--rhe6x86_64/buildbot/rhe6x86_64--arm-none-eabi/build/src/gcc/gcc/lra.c:2616
0xa2a224 do_reload
       
/tmp/dgboter/bbs/rhev-vm1--rhe6x86_64/buildbot/rhe6x86_64--arm-none-eabi/build/src/gcc/gcc/ira.c:5469
0xa2a224 execute
       
/tmp/dgboter/bbs/rhev-vm1--rhe6x86_64/buildbot/rhe6x86_64--arm-none-eabi/build/src/gcc/gcc/ira.c:5653
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