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Add new AArch64 FP16 FM{A|S} instructions.

Browse Source 
This patch separates the new FP16 instructions backported from Armv8.4-a to Armv8.2-a
into a new flag order to distinguish them from the rest of the already existing optional
FP16 instructions in Armv8.2-a.

The new flag "+fp16fml" is available from Armv8.2-a and implies +fp16 and is mandatory on
Armv8.4-a.

gas/

	* config/tc-aarch64.c (fp16fml): New.
	* doc/c-aarch64.texi (fp16fml): New.
	* testsuite/gas/aarch64/armv8_2-a-crypto-fp16.d (fp16): Make fp16fml.
	* testsuite/gas/aarch64/armv8_3-a-crypto-fp16.d (fp16): Make fp16fml.

include/

	* opcode/aarch64.h: (AARCH64_FEATURE_F16_FML): New.
	(AARCH64_ARCH_V8_4): Enable AARCH64_FEATURE_F16_FML by default.

opcodes/

	* aarch64-tbl.h (aarch64_feature_fp_16_v8_2): Require AARCH64_FEATURE_F16_FML
	and AARCH64_FEATURE_F16.
This commit is contained in:
Tamar Christina 2017-11-16 16:19:37 +00:00
parent fadfa6b002
commit d0f7791c66
9 changed files with 30 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
gas/ChangeLog
View File

@ -1,3 +1,10 @@
2017-11-16 Tamar Christina <tamar.christina@arm.com>
* config/tc-aarch64.c (fp16fml): New.
* doc/c-aarch64.texi (fp16fml): New.
* testsuite/gas/aarch64/armv8_2-a-crypto-fp16.d (fp16): Make fp16fml.
* testsuite/gas/aarch64/armv8_3-a-crypto-fp16.d (fp16): Make fp16fml.
2017-11-16 Tamar Christina <tamar.christina@arm.com>
* opcodes/aarch64-tbl.h

3
gas/config/tc-aarch64.c
View File

@ -8499,6 +8499,9 @@ static const struct aarch64_option_cpu_value_table aarch64_features[] = {
AARCH64_FEATURE (AARCH64_FEATURE_SIMD, 0)},
{"fp16", AARCH64_FEATURE (AARCH64_FEATURE_F16, 0),
AARCH64_FEATURE (AARCH64_FEATURE_FP, 0)},
{"fp16fml", AARCH64_FEATURE (AARCH64_FEATURE_F16_FML, 0),
AARCH64_FEATURE (AARCH64_FEATURE_FP
| AARCH64_FEATURE_F16, 0)},
{"profile", AARCH64_FEATURE (AARCH64_FEATURE_PROFILE, 0),
AARCH64_ARCH_NONE},
{"sve", AARCH64_FEATURE (AARCH64_FEATURE_SVE, 0),

3
gas/doc/c-aarch64.texi
View File

@ -176,6 +176,9 @@ automatically cause those extensions to be disabled.
@code{simd} and @code{compnum}.
@item @code{dotprod} @tab ARMv8.2-A @tab ARMv8.4-A or later
@tab Enable the Dot Product extension. This implies @code{simd}.
@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}.
@end multitable
@node AArch64 Syntax

2
gas/testsuite/gas/aarch64/armv8_2-a-crypto-fp16.d
View File

@ -1,4 +1,4 @@
#as: -march=armv8.2-a+crypto+sm4+sha3+fp16
#as: -march=armv8.2-a+crypto+sm4+sha3+fp16fml
#objdump: -dr
.*: file format .*

2
gas/testsuite/gas/aarch64/armv8_3-a-crypto-fp16.d
View File

@ -1,4 +1,4 @@
#as: -march=armv8.3-a+crypto+sm4+sha3+fp16
#as: -march=armv8.3-a+crypto+sm4+sha3+fp16fml
#source: armv8_2-a-crypto-fp16.s
#objdump: -dr

5
include/ChangeLog
View File

@ -1,3 +1,8 @@
2017-11-16 Tamar Christina <tamar.christina@arm.com>
* opcode/aarch64.h: (AARCH64_FEATURE_F16_FML): New.
(AARCH64_ARCH_V8_4): Enable AARCH64_FEATURE_F16_FML by default.
2017-11-15 Tamar Christina <tamar.christina@arm.com>
* opcode/arm.h: (ARM_EXT2_FP16_FML): New.

4
include/opcode/aarch64.h
View File

@ -61,6 +61,7 @@ typedef uint32_t aarch64_insn;
#define AARCH64_FEATURE_RCPC 0x20000000 /* RCPC instructions. */
#define AARCH64_FEATURE_COMPNUM 0x40000000 /* Complex # instructions. */
#define AARCH64_FEATURE_DOTPROD 0x080000000 /* Dot Product instructions. */
#define AARCH64_FEATURE_F16_FML 0x1000000000ULL /* v8.2 FP16FML ins. */
/* Architectures are the sum of the base and extensions. */
#define AARCH64_ARCH_V8 AARCH64_FEATURE (AARCH64_FEATURE_V8, \
@ -82,7 +83,8 @@ typedef uint32_t aarch64_insn;
| AARCH64_FEATURE_COMPNUM)
#define AARCH64_ARCH_V8_4 AARCH64_FEATURE (AARCH64_ARCH_V8_3, \
AARCH64_FEATURE_V8_4 \
| AARCH64_FEATURE_DOTPROD)
| AARCH64_FEATURE_DOTPROD \
| AARCH64_FEATURE_F16_FML)
#define AARCH64_ARCH_NONE AARCH64_FEATURE (0, 0)
#define AARCH64_ANY AARCH64_FEATURE (-1, 0) /* Any basic core. */

5
opcodes/ChangeLog
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@ -1,3 +1,8 @@
2017-11-16 Tamar Christina <tamar.christina@arm.com>
* aarch64-tbl.h (aarch64_feature_fp_16_v8_2): Require AARCH64_FEATURE_F16_FML
and AARCH64_FEATURE_F16.
2017-11-16 Tamar Christina <tamar.christina@arm.com>
* aarch64-tbl.h (sha512h, sha512h2, sha512su0, sha512su1, eor3): New.

4
opcodes/aarch64-tbl.h
View File

@ -2143,8 +2143,8 @@ static const aarch64_feature_set aarch64_feature_sha3 =
AARCH64_FEATURE (AARCH64_FEATURE_V8_2 | AARCH64_FEATURE_SHA2
| AARCH64_FEATURE_SHA3 | AARCH64_FEATURE_SIMD | AARCH64_FEATURE_FP, 0);
static const aarch64_feature_set aarch64_feature_fp_16_v8_2 =
AARCH64_FEATURE (AARCH64_FEATURE_V8_2 | AARCH64_FEATURE_F16
| AARCH64_FEATURE_FP, 0);
AARCH64_FEATURE (AARCH64_FEATURE_V8_2 | AARCH64_FEATURE_F16_FML
| AARCH64_FEATURE_F16 | AARCH64_FEATURE_FP, 0);
#define CORE &aarch64_feature_v8
#define FP &aarch64_feature_fp