[PATCH, BINUTILS, AARCH64, 3/9] Add instruction SB for ARMv8.5-A

[Sudakshina Das]

Hi

This patch is part of the patch series to add support for ARMv8.5-A
extensions.
(https://developer.arm.com/products/architecture/cpu-architecture/a-profile/docs/ddi0596/a/a64-base-instructions-alphabetic-order)

This instruction is retrospectively made optional for all versions of
the architecture from ARMv8.0 to ARMv8.4 and is mandatory from ARMv8.5.
Hence a new command line option of "+sb" is added for older
architectures.

Testing done: Builds and reg tests all pass on aarch64-none-linux-gnu
and aarch64-none-elf. Added new tests.

Thanks
Sudi
PS. I do not have commit access so if OK can someone apply for me?
Also the patch was too big to attach due to the regenerated files.

*** include/ChangeLog ***

2018-xx-xx Sudakshina Das <***@arm.com>

* opcode/aarch64.h (AARCH64_FEATURE_SB): New.
(AARCH64_ARCH_V8_5): Add AARCH64_FEATURE_SB by default.

*** opcodes/ChangeLog ***

2018-xx-xx Sudakshina Das <***@arm.com>

* aarch64-tbl.h (aarch64_feature_sb): New.
(SB, SB_INSN): New.
(aarch64_opcode_table): Add entry for sb.
* aarch64-asm-2.c: Regenerate.
* aarch64-dis-2.c: Regenerate.
* aarch64-opc-2.c: Regenerate.

*** gas/ChangeLog ***

2018-xx-xx Sudakshina Das <***@arm.com>

* config/tc-aarch64.c (aarch64_features): Add new "sb" option
for older architectures.
* doc/c-aarch64.texi: Document the same.
* testsuite/gas/aarch64/sb.s: New.
* testsuite/gas/aarch64/sb.d: New.

[Richard Earnshaw (lists)]

Post by Sudakshina Das
Hi
This patch is part of the patch series to add support for ARMv8.5-A
extensions.
(https://developer.arm.com/products/architecture/cpu-architecture/a-profile/docs/ddi0596/a/a64-base-instructions-alphabetic-order)
This instruction is retrospectively made optional for all versions of
the architecture from ARMv8.0 to ARMv8.4 and is mandatory from ARMv8.5.
Hence a new command line option of "+sb" is added for older
architectures.
Testing done: Builds and reg tests all pass on aarch64-none-linux-gnu
and aarch64-none-elf. Added new tests.
Thanks
Sudi
PS. I do not have commit access so if OK can someone apply for me?
Also the patch was too big to attach due to the regenerated files.
*** include/ChangeLog ***
    * opcode/aarch64.h (AARCH64_FEATURE_SB): New.
    (AARCH64_ARCH_V8_5): Add AARCH64_FEATURE_SB by default.
*** opcodes/ChangeLog ***
    * aarch64-tbl.h (aarch64_feature_sb): New.
    (SB, SB_INSN): New.
    (aarch64_opcode_table): Add entry for sb.
    * aarch64-asm-2.c: Regenerate.
    * aarch64-dis-2.c: Regenerate.
    * aarch64-opc-2.c: Regenerate.
*** gas/ChangeLog ***
    * config/tc-aarch64.c (aarch64_features): Add new "sb" option
    for older architectures.
    * doc/c-aarch64.texi: Document the same.
    * testsuite/gas/aarch64/sb.s: New.
    * testsuite/gas/aarch64/sb.d: New.

Committed.

R.