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[AArch64] Add ARMv8.2 command line option and feature flag. 

ARMv8.2 is an architectural extension of ARMv8. This patch adds an
architecture feature macro for ARMv8.2 to the binutils AArch64 target
with GAS command line option -march=armv8.2-a.

gas/
2015-11-19  Matthew Wahab  <matthew.wahab@arm.com>

	* config/tc-aarch64.c (aarch64_archs): Add "armv8.2-a".
	* doc/c-aarch64.texi (-march): Likewise.

include/opcode/
2015-11-19  Matthew Wahab  <matthew.wahab@arm.com>

	* aarch64.h (AARCH64_FEATURE_V8_2): New.
	(AARCH64_ARCH_V8_2): New.

Change-Id: I129232ab00234a07d18ce4b619607344acb3cbaf
This commit is contained in:
Matthew Wahab 2015-11-19 09:12:49 +00:00
parent 9a724e7b6b
commit acb787b032
5 changed files with 22 additions and 3 deletions
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5
gas/ChangeLog
View File

@ -1,3 +1,8 @@
2015-11-19 Matthew Wahab <matthew.wahab@arm.com>
* config/tc-aarch64.c (aarch64_archs): Add "armv8.2-a".
* doc/c-aarch64.texi (-march): Likewise.
2015-11-19 Alan Modra <amodra@gmail.com>
* read.c (output_big_leb128): Describe "sign" parameter.

1
gas/config/tc-aarch64.c
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@ -7717,6 +7717,7 @@ static const struct aarch64_arch_option_table aarch64_archs[] = {
{"all", AARCH64_ANY},
{"armv8-a", AARCH64_ARCH_V8},
{"armv8.1-a", AARCH64_ARCH_V8_1},
{"armv8.2-a", AARCH64_ARCH_V8_2},
{NULL, AARCH64_ARCH_NONE}
};

4
gas/doc/c-aarch64.texi
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@ -83,8 +83,8 @@ extensions.
This option specifies the target architecture. The assembler will
issue an error message if an attempt is made to assemble an
instruction which will not execute on the target architecture. The
following architecture names are recognized: @code{armv8-a} and
@code{armv8.1-a}.
following architecture names are recognized: @code{armv8-a},
@code{armv8.1-a} and @code{armv8.2-a}.
If both @option{-mcpu} and @option{-march} are specified, the
assembler will use the setting for @option{-mcpu}. If neither are

5
include/opcode/ChangeLog
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@ -1,3 +1,8 @@
2015-11-19 Matthew Wahab <matthew.wahab@arm.com>
* aarch64.h (AARCH64_FEATURE_V8_2): New.
(AARCH64_ARCH_V8_2): New.
2015-11-11 Alan Modra <amodra@gmail.com>
Peter Bergner <bergner@vnet.ibm.com>

10
include/opcode/aarch64.h
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@ -38,6 +38,7 @@ typedef uint32_t aarch64_insn;
/* The following bitmasks control CPU features. */
#define AARCH64_FEATURE_V8 0x00000001 /* All processors. */
#define AARCH64_FEATURE_V8_2 0x00000020 /* ARMv8.2 processors. */
#define AARCH64_FEATURE_CRYPTO 0x00010000 /* Crypto instructions. */
#define AARCH64_FEATURE_FP 0x00020000 /* FP instructions. */
#define AARCH64_FEATURE_SIMD 0x00040000 /* SIMD instructions. */
@ -58,7 +59,14 @@ typedef uint32_t aarch64_insn;
| AARCH64_FEATURE_PAN \
| AARCH64_FEATURE_LOR \
| AARCH64_FEATURE_RDMA)
#define AARCH64_ARCH_V8_2 AARCH64_FEATURE (AARCH64_FEATURE_V8, \
AARCH64_FEATURE_V8_2 \
| AARCH64_FEATURE_FP \
| AARCH64_FEATURE_SIMD \
| AARCH64_FEATURE_LSE \
| AARCH64_FEATURE_PAN \
| AARCH64_FEATURE_LOR \
| AARCH64_FEATURE_RDMA)
#define AARCH64_ARCH_NONE AARCH64_FEATURE (0, 0)
#define AARCH64_ANY AARCH64_FEATURE (-1, 0) /* Any basic core. */