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From: "jengelh at inai dot de" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug driver/102957] New: [riscv64] ICE on bogus -march value
Date: Tue, 26 Oct 2021 21:42:49 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D102957

            Bug ID: 102957
           Summary: [riscv64] ICE on bogus -march value
           Product: gcc
           Version: 11.2.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: driver
          Assignee: unassigned at gcc dot gnu.org
          Reporter: jengelh at inai dot de
  Target Milestone: ---

> g++ -v
Using built-in specs.
COLLECT_GCC=3Dg++
COLLECT_LTO_WRAPPER=3D/usr/lib64/gcc/riscv64-suse-linux/11/lto-wrapper
Target: riscv64-suse-linux
Configured with: ../configure --prefix=3D/usr --infodir=3D/usr/share/info
--mandir=3D/usr/share/man --libdir=3D/usr/lib64 --libexecdir=3D/usr/lib64
--enable-languages=3Dc,c++,objc,fortran,obj-c++,ada,go,d,jit --enable-host-=
shared
--enable-checking=3Drelease --disable-werror
--with-gxx-include-dir=3D/usr/include/c++/11 --enable-ssp --disable-libssp
--disable-libvtv --enable-cet=3Dauto --disable-libcc1 --enable-plugin
--with-bugurl=3Dhttps://bugs.opensuse.org/ --with-pkgversion=3D'SUSE Linux'
--with-slibdir=3D/lib64 --with-system-zlib --enable-libstdcxx-allocator=3Dn=
ew
--disable-libstdcxx-pch --enable-libphobos
--enable-version-specific-runtime-libs --with-gcc-major-version-only
--enable-linker-build-id --enable-linux-futex --program-suffix=3D-11
--without-system-libunwind --disable-multilib --enable-link-mutex
--build=3Driscv64-suse-linux --host=3Driscv64-suse-linux
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 11.2.1 20210816 [revision 056e324ce46a7924b5cf10f61010cf9dd2ca1=
0e9]
(SUSE Linux)=20


> g++ -v -march=3Drv64gzb
Using built-in specs.
g++: internal compiler error: in multi_letter_subset_rank, at
common/config/riscv/riscv-common.c:200
Please submit a full bug report,


Yeah, zb is not valid (should be zbb), but should rather yield a normal mes=
sage
than an ICE.=