[Bug binutils/31919] AArch64 gas test case "gas/aarch64/brbe-brb-inst" fails on s390x

[cvs-commit at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=31919

--- Comment #1 from Sourceware Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jens Remus <jremus@sourceware.org>:

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=64daf9abd9c805770727ade9c8197f5e07b28324

commit 64daf9abd9c805770727ade9c8197f5e07b28324
Author: Jens Remus <jremus@linux.ibm.com>
Date:   Tue Jun 25 17:25:55 2024 +0200

    aarch64: Treat operand Rt_IN_SYS_ALIASES as register number (PR 31919)

    The AArch64 instruction table (aarch64-tbl.h) defines the operand
    Rt_IN_SYS_ALIASES as register number. During assembly it is correctly
    encoded as register number (reg.regno) in parse_operands. During
    disassembly it is first correctly decoded as register number (reg.regno)
    in aarch64_ext_regno called by aarch64_extract_operand, but then
    erroneously treated as immediate value (imm.value) in
    aarch64_print_operand.

    This resolves the assembler test case "gas/aarch64/brbe-brb-inst" to
    erroneously fail on s390. On AArch64 - being little-endian - the struct
    aarch64_opnd_info union fields reg.regno and imm.value share their
    least-significant bits. On s390 - being big-endian - they do not.

    opcodes/
            PR binutils/31919
            * aarch64-opc.c: Treat operand Rt_IN_SYS_ALIASES as register
            number.

    Bug: https://sourceware.org/PR31919
    Fixes: 72476aca8f58 ("aarch64: add Branch Record Buffer extension
instructions")
    Signed-off-by: Jens Remus <jremus@linux.ibm.com>

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