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

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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
Download Patch File Download Diff File Expand all files Collapse all files
include/opcode/aarch64.h
+3 -1
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. */