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| author | Sudakshina Das <sudi.das@arm.com> | 2018-09-26 10:47:40 +0100 |
|---|---|---|
| committer | Richard Earnshaw <Richard.Earnshaw@arm.com> | 2018-10-09 15:11:27 +0100 |
| commit | 68dfbb92ef5f013a315d652c88ede2082c16a88e (patch) | |
| tree | 185bdc259751e0288215a6a0452537b6b1b0049a /gas/doc | |
| parent | 13c60ad7e1211ee1dfbf6bfb5e35110a33e4eed5 (diff) | |
| download | gdb-68dfbb92ef5f013a315d652c88ede2082c16a88e.zip gdb-68dfbb92ef5f013a315d652c88ede2082c16a88e.tar.gz gdb-68dfbb92ef5f013a315d652c88ede2082c16a88e.tar.bz2 | |
[PATCH, BINUTILS, AARCH64, 3/9] Add instruction SB for ARMv8.5-A
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.
*** include/ChangeLog ***
2018-10-09 Sudakshina Das <sudi.das@arm.com>
* opcode/aarch64.h (AARCH64_FEATURE_SB): New.
(AARCH64_ARCH_V8_5): Add AARCH64_FEATURE_SB by default.
*** opcodes/ChangeLog ***
2018-10-09 Sudakshina Das <sudi.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 ***
2018-10-09 Sudakshina Das <sudi.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.
Diffstat (limited to 'gas/doc')
| -rw-r--r-- | gas/doc/c-aarch64.texi | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/gas/doc/c-aarch64.texi b/gas/doc/c-aarch64.texi index bac0f77..8a116a4 100644 --- a/gas/doc/c-aarch64.texi +++ b/gas/doc/c-aarch64.texi @@ -181,6 +181,8 @@ automatically cause those extensions to be disabled. @item @code{fp16fml} @tab ARMv8.2-A @tab ARMv8.4-A or later @tab Enable ARMv8.2 16-bit floating-point multiplication variant support. This implies @code{fp16}. +@item @code{sb} @tab ARMv8-A @tab ARMv8.5-A or later + @tab Enable the speculation barrier instruction sb. @end multitable @node AArch64 Syntax |