[Bug target/100208] amdgcn fails to build with llvm-mc from llvm12

["cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100208

--- Comment #5 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-11 branch has been updated by Tobias Burnus
<burnus@gcc.gnu.org>:

https://gcc.gnu.org/g:9552afb2aec54b793d61ce85c93869a2f2a7958f

commit r11-9162-g9552afb2aec54b793d61ce85c93869a2f2a7958f
Author: Andrew Stubbs <ams@codesourcery.com>
Date:   Thu Jul 8 15:47:53 2021 +0100

    amdgcn: Add -mxnack and -msram-ecc [PR 100208]

    gcc/ChangeLog:

            PR target/100208
            * config/gcn/gcn-hsa.h (DRIVER_SELF_SPECS): New.
            (ASM_SPEC): Set -mattr for xnack and sram-ecc.
            * config/gcn/gcn-opts.h (enum sram_ecc_type): New.
            * config/gcn/gcn-valu.md: Add a warning comment.
            * config/gcn/gcn.c (gcn_option_override): Add "sorry" for -mxnack.
            (output_file_start): Add xnack and sram-ecc state to
".amdgcn_target".
            * config/gcn/gcn.md: Add a warning comment.
            * config/gcn/gcn.opt: Add -mxnack and -msram-ecc.
            * config/gcn/mkoffload.c (EF_AMDGPU_MACH_AMDGCN_GFX908): Remove
            SRAM-ECC flag.
            (EF_AMDGPU_XNACK): New.
            (EF_AMDGPU_SRAM_ECC): New.
            (elf_flags): New.
            (copy_early_debug_info): Use elf_flags.
            (main): Handle -mxnack and -msram-ecc options.
            * doc/invoke.texi: Document -mxnack and -msram-ecc.

    gcc/testsuite/ChangeLog:

            PR target/100208
            * gcc.target/gcn/sram-ecc-1.c: New test.
            * gcc.target/gcn/sram-ecc-2.c: New test.
            * gcc.target/gcn/sram-ecc-3.c: New test.
            * gcc.target/gcn/sram-ecc-4.c: New test.
            * gcc.target/gcn/sram-ecc-5.c: New test.
            * gcc.target/gcn/sram-ecc-6.c: New test.
            * gcc.target/gcn/sram-ecc-7.c: New test.
            * gcc.target/gcn/sram-ecc-8.c: New test.

    (cherry picked from commit aad32a00b7d2b64ae158b2b167768a9ae3e20f6e)