[Bug rtl-optimization/63491] Ice in LRA with simple vector test case on power

["bergner at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63491

--- Comment #8 from Peter Bergner <bergner at gcc dot gnu.org> ---
(In reply to Vladimir Makarov from comment #7)
> I tried again the test on gcc rev. 221324 (Mar 10) with the mentioned
> options and I've failed to reproduce the crash.

Maybe a configure option thing?  Maybe --disable-bootstrap which I have been
using?  I just tried using the same revision you did (221324) and I still see
the same error:


Target: powerpc64-linux
Configured with: /home/bergner/gcc/gcc-fsf-mainline-vlad-lra/configure
--target=powerpc64-linux --host=powerpc64-linux --build=powerpc64-linux
--enable-threads=posix --enable-shared --enable-__cxa_atexit
--enable-languages=c,c++ --enable-secureplt --enable-checking=yes
--with-gmp=/home/bergner/tools/meissner
--with-mpfr=/home/bergner/tools/meissner
--with-mpc=/home/bergner/tools/meissner --with-long-double-128
--enable-decimal-float --disable-bootstrap --disable-alsa
--prefix=/home/bergner/gcc/install/gcc-fsf-mainline-vlad-lra-r221324
Thread model: posix
gcc version 5.0.0 20150310 (experimental) [trunk revision 221324] (GCC) 


[bergner@makalu-lp1 LRA]$
/home/bergner/gcc/build/gcc-fsf-mainline-vlad-lra-r221324/gcc/xgcc
-B/home/bergner/gcc/build/gcc-fsf-mainline-vlad-lra-r221324/gcc -O1 -m64
-mcpu=power8 -mlra -S pr63491.i pr63491.i: In function âfooâ:
pr63491.i:14:1: internal compiler error: in check_and_process_move, at
lra-constraints.c:1171
 }
 ^
0x1099c933 check_and_process_move
    /home/bergner/gcc/gcc-fsf-mainline-vlad-lra/gcc/lra-constraints.c:1168
0x109a5313 curr_insn_transform
    /home/bergner/gcc/gcc-fsf-mainline-vlad-lra/gcc/lra-constraints.c:3464
0x109a9b93 lra_constraints(bool)
    /home/bergner/gcc/gcc-fsf-mainline-vlad-lra/gcc/lra-constraints.c:4452
0x10989da3 lra(_IO_FILE*)
    /home/bergner/gcc/gcc-fsf-mainline-vlad-lra/gcc/lra.c:2301
0x1090cb97 do_reload
    /home/bergner/gcc/gcc-fsf-mainline-vlad-lra/gcc/ira.c:5418
0x1090d22f execute
    /home/bergner/gcc/gcc-fsf-mainline-vlad-lra/gcc/ira.c:5589
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