ICE on powerpc64le-unknown-freebsd-gcc version 17.0.0 #4801

#!/usr/local/bin/bash -ex
export PATH="$PWD/prefix/bin:$PATH"
NPROC=$(nproc || echo 6)
ROOTDIR="$PWD"
TARGET="powerpc64le-unknown-freebsd15.0"
PREFIX="$ROOTDIR/prefix"
SYSROOT="$ROOTDIR/sysroot/$TARGET"
FREEBSD_ARCH=powerpc/powerpc64le
CMAKE_ARCH=ppc64le
mkdir -p "$PREFIX"
install_freebsd_sysroot() {
    VERSION="15.1-RELEASE"
    FTPSITE="https://download.freebsd.org/ftp"
    mkdir -p "$SYSROOT"
    [ -f "$SYSROOT/base.txz" ] || wget -O "$SYSROOT/base.txz" "$FTPSITE/releases/$FREEBSD_ARCH/$VERSION/base.txz"
    [ -d "$SYSROOT/usr" ] || tar -C "$SYSROOT" -xvzf "$SYSROOT/base.txz"
}
build_hosted_binutils_gdb() {
    BUILDDIR="$ROOTDIR/build/$TARGET-binutils-gdb"
    SRCDIR="$ROOTDIR/binutils-gdb"
    CONFIGURE_FLAGS=(
        --prefix="$PREFIX"
        --target="$TARGET"
        --without-libiconv-prefix
        --with-sysroot="$SYSROOT"
        --enable-threads=posix
        --disable-werror
        --disable-intl
        --disable-nls
    )
    [ -d "$SRCDIR" ] || git clone --depth=1 https://github.com/gnutools/binutils-gdb.git "$SRCDIR"
    mkdir -p "$BUILDDIR"
    cd "$BUILDDIR"
    [ -f "$BUILDDIR/Makefile" ] || "$SRCDIR/configure" "${CONFIGURE_FLAGS[@]}"
    gmake -j $NPROC
    which -- "${TARGET}-as" || {
        gmake install
    }
    cd ..
}
build_hosted_gcc() {
    BUILDDIR="$ROOTDIR/build/$TARGET-gcc"
    SRCDIR="$ROOTDIR/gcc"
    CONFIGURE_FLAGS=(
        --prefix="$PREFIX"
        --target="$TARGET"
        --with-sysroot="$SYSROOT"
        --with-abi=elfv2
        --enable-gnu-indirect-function
        --enable-initfini-array
        --with-system-zlib
        --without-zstd
        --enable-libstdcxx-threads=yes
        --enable-languages=c,c++
        --enable-threads=posix
        --disable-multilib
        --disable-gnu-unique-object
        --disable-libsanitizer
        --disable-libquadmath
        --disable-bootstrap
        --disable-checking
        --disable-libgomp
        --disable-libssp
        --disable-libvtv
        --disable-shared
        --disable-gcov
        --disable-lto
        --disable-cet
        --disable-nls
    )
    which -- "${TARGET}-as"
    [ -d "$SRCDIR" ] || git clone --depth=1 https://github.com/gcc-mirror/gcc "$SRCDIR"
    mkdir -p "$BUILDDIR"
    cd "$BUILDDIR"
    [ -f "$BUILDDIR/Makefile" ] || "$SRCDIR/configure" "${CONFIGURE_FLAGS[@]}"
    gmake all-gcc -j $NPROC
    gmake all-target-libgcc -j $NPROC
    gmake all-target-libstdc++-v3 -j $NPROC
    which -- "${TARGET}-gcc" || {
        gmake install-gcc -j $NPROC
        gmake install-target-libgcc -j $NPROC
        gmake install-target-libstdc++-v3 -j $NPROC
    }
    cd ..
}

generate_cmake_toolchain_file() {
    FILE="$ROOTDIR/$TARGET-toolchain.cmake"
    [ -f "$FILE" ] || cat << EOF >"$FILE"
set(CMAKE_SYSROOT "$SYSROOT")
set(CMAKE_PREFIX_PATH "$SYSROOT")
set(CMAKE_STAGING_PREFIX "$PREFIX")
set(PKG_CONFIG_EXECUTABLE "$ROOTDIR/pkg-config")
set(CMAKE_SYSTEM_NAME "FreeBSD")
set(CMAKE_SYSTEM_PROCESSOR "$CMAKE_ARCH")
set(CMAKE_C_COMPILER $PREFIX/bin/$TARGET-gcc)
set(CMAKE_CXX_COMPILER $PREFIX/bin/$TARGET-g++)
set(CMAKE_ASM_COMPILER $PREFIX/bin/$TARGET-gcc)
set(CMAKE_LINKER $PREFIX/bin/$TARGET-g++)
set(CMAKE_C_FLAGS "")
set(CMAKE_CXX_FLAGS "")
set(CMAKE_C_HOST_COMPILER clang)
set(CMAKE_CXX_HOST_COMPILER clang++)
set(CMAKE_ASM_HOST_COMPILER clang)
set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)
EOF
}
install_freebsd_sysroot
mkdir -p "$ROOTDIR/build"
build_hosted_binutils_gdb
build_hosted_gcc
generate_cmake_toolchain_file
cd "$ROOTDIR"
[ -d zstd ] || git clone --depth=1 https://github.com/facebook/zstd
cd zstd/build/cmake
cmake -S . -B build-cmake \
    -DCMAKE_TOOLCHAIN_FILE="$ROOTDIR/$TARGET-toolchain.cmake" \
    -DCMAKE_BUILD_TYPE=Release \
    -DZSTD_BUILD_SHARED=OFF
cmake --build build-cmake -- -j$NPROC