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

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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.
This commit is contained in:
Sudakshina Das
2018-09-26 10:47:40 +01:00
committed by Richard Earnshaw
parent 13c60ad7e1
commit 68dfbb92ef
13 changed files with 1196 additions and 1132 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
include/opcode/aarch64.h
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@ -68,6 +68,8 @@ typedef uint32_t aarch64_insn;
#define AARCH64_FEATURE_FLAGMANIP 0x4000000000ULL
/* FRINT[32,64][Z,X] insns. */
#define AARCH64_FEATURE_FRINTTS 0x8000000000ULL
/* SB instruction. */
#define AARCH64_FEATURE_SB 0x10000000000ULL
/* Architectures are the sum of the base and extensions. */
#define AARCH64_ARCH_V8 AARCH64_FEATURE (AARCH64_FEATURE_V8, \
@ -94,7 +96,8 @@ typedef uint32_t aarch64_insn;
#define AARCH64_ARCH_V8_5 AARCH64_FEATURE (AARCH64_ARCH_V8_4, \
AARCH64_FEATURE_V8_5 \
| AARCH64_FEATURE_FLAGMANIP \
| AARCH64_FEATURE_FRINTTS)
| AARCH64_FEATURE_FRINTTS \
| AARCH64_FEATURE_SB)
#define AARCH64_ARCH_NONE AARCH64_FEATURE (0, 0)