[Bug target/99829] MVE: ICE in lra_assign at -O3

["thiago.bauermann at linaro dot org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99829

--- Comment #6 from Thiago Jung Bauermann <thiago.bauermann at linaro dot org> ---
Created attachment 57683
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=57683&action=edit
Preprocessed source file.

I was able to reproduce the ICE on my x86_64 laptop with the following
commands. There's no timeout problem involved.
I'm attaching the Preprocessed source file.

$ mkdir -p ~/.cache/builds/combined-tree-src
$ mkdir -p ~/.cache/builds/combined-tree-arm-eabi
$ cd ~/src/newlib-cygwin && find . -print | cpio -pdlm
~/.cache/builds/combined-tree-src
$ cd ~/src/binutils-gdb && find . -print | cpio -pdlmu
~/.cache/builds/combined-tree-src
$ cd ~/src/gcc && find . -print | cpio -pdlmu ~/.cache/builds/combined-tree-src
$ cd ~/.cache/builds/combined-tree-arm-eabi
$ ../combined-tree-src/configure \
    SHELL=/bin/bash \
    --with-gnu-as \
    --with-gnu-ld \
    --disable-libmudflap \
    --disable-gdb \
    --disable-gprof \
    --disable-gprofng \
    --enable-lto \
    --enable-shared \
    --without-included-gettext \
    --enable-nls \
    --with-system-zlib \
    --disable-sjlj-exceptions \
    --enable-gnu-unique-object \
    --enable-linker-build-id \
    --disable-libstdcxx-pch \
    --enable-c99 \
    --enable-clocale=gnu \
    --enable-libstdcxx-debug \
    --enable-long-long \
    --with-cloog=no \
    --with-ppl=no \
    --with-isl=no \
    --enable-threads=no \
    --disable-multiarch \
    --disable-multilib \
    --with-mode=thumb \
    --with-arch=armv8.1-m.main+mve.fp+fp.dp \
    --with-float=hard \
    --with-sysroot=/tmp/install/arm-eabi \
    --with-headers=yes \
    --with-native-system-header-dir=/include \
    --with-newlib \
    --enable-checking=yes \
    --disable-bootstrap \
    --enable-languages=c,c++,lto \
    --prefix=/tmp/install \
    --build=x86_64-pc-linux-gnu \
    --host=x86_64-pc-linux-gnu \
    --target=arm-eabi
$ make \
    SHELL=/bin/bash \
    -w \
    -j 8 \
    LDFLAGS_FOR_TARGET=" --specs=rdimon.specs" \
    CFLAGS_FOR_BUILD="-pipe -g -O2" \
    CXXFLAGS_FOR_BUILD="-pipe -g -O2" \
    LDFLAGS_FOR_BUILD="-static-libgcc" \
    MAKEINFOFLAGS=--force
$
/home/bauermann/.cache/builds/combined-tree-arm-eabi/gcc/testsuite/g++/../../xg++
\
   
-B/home/bauermann/.cache/builds/combined-tree-arm-eabi/gcc/testsuite/g++/../../
\
   
/home/bauermann/.cache/builds/combined-tree-src/gcc/testsuite/c-c++-common/torture/vshuf-v16qi.c
\
    -fdiagnostics-plain-output \
    -nostdinc++ \
   
-I/home/bauermann/.cache/builds/combined-tree-arm-eabi/arm-eabi/libstdc++-v3/include/arm-eabi
\
   
-I/home/bauermann/.cache/builds/combined-tree-arm-eabi/arm-eabi/libstdc++-v3/include
\
    -I/home/bauermann/.cache/builds/combined-tree-src/libstdc++-v3/libsupc++ \
   
-I/home/bauermann/.cache/builds/combined-tree-src/libstdc++-v3/include/backward
\
   
-I/home/bauermann/.cache/builds/combined-tree-src/libstdc++-v3/testsuite/util \
    -fmessage-length=0 \
    -O3 \
    -g \
    -S \
    -o vshuf-v16qi.s
during RTL pass: reload
In file included from
/home/bauermann/.cache/builds/combined-tree-src/gcc/testsuite/c-c++-common/torture/vshuf-v16qi.c:5:
/home/bauermann/.cache/builds/combined-tree-src/gcc/testsuite/c-c++-common/torture/vshuf-main.inc:
In function ‘int main()’:
/home/bauermann/.cache/builds/combined-tree-src/gcc/testsuite/c-c++-common/torture/vshuf-main.inc:26:1:
internal compiler error: in lra_assign, at lra-assigns.cc:1657
0x10b2b19 lra_assign(bool&)
        ../../combined-tree-src/gcc/lra-assigns.cc:1657
0x10acf3f lra(_IO_FILE*, int)
        ../../combined-tree-src/gcc/lra.cc:2493
0x10617ef do_reload
        ../../combined-tree-src/gcc/ira.cc:5973
0x10617ef execute
        ../../combined-tree-src/gcc/ira.cc:6161
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.