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Adds command line support for Armv8.4-A, via the new command line option -march=armv8.4-a. Add support for "+dotprod" ARM feature (required for ARMv8.4-A). Add assembler and disassembler support for new FP16 instructions introduced in Armv8.4-A

Browse Source 
gas	* config/tc-arm.c (arm_extensions):
	(arm_archs): New entry for "armv8.4-a".
	Add FPU_ARCH_DOTPROD_NEON_VFP_ARMV8.
	(arm_ext_v8_2): New variable.
	(enum arm_reg_type): New enumeration REG_TYPE_NSD.
	(reg_expected_msgs): New entry for REG_TYPE_NSD.
	(parse_typed_reg_or_scalar): Handle REG_TYPE_NSD.
	(parse_scalar): Support REG_TYPE_VFS.
	(enum operand_parse_code): New enumerations OP_RNSD and OP_RNSD_RNSC.
	(parse_operands): Handle OP_RNSD and OP_RNSD_RNSC.
	(NEON_SHAPE_DEF): New entries for DHH and DHS.
	(neon_scalar_for_fmac_fp16_long): New function to generate Rm encoding
	for new FP16 instructions in ARMv8.2-A.
	(do_neon_fmac_maybe_scalar_long): New function to encode new FP16
	instructions in ARMv8.2-A.
	(do_neon_vfmal): Wrapper function for vfmal.
	(do_neon_vfmsl): Wrapper function for vfmsl.
	(insns): New entries for vfmal and vfmsl.
	* doc/c-arm.texi (-march): Document "armv8.4-a".
	* testsuite/gas/arm/dotprod-mandatory.d: New test.
	* testsuite/gas/arm/armv8_2-a-fp16.s: New test source.
	* testsuite/gas/arm/armv8_2-a-fp16-illegal.s: New test source.
	* testsuite/gas/arm/armv8_2-a-fp16.d: New test.
	* testsuite/gas/arm/armv8_3-a-fp16.d: New test.
	* testsuite/gas/arm/armv8_4-a-fp16.d: New test.
	* testsuite/gas/arm/armv8_2-a-fp16-thumb2.d: New test.
	* testsuite/gas/arm/armv8_2-a-fp16-illegal.d: New test.
	* testsuite/gas/arm/armv8_2-a-fp16-illegal.l: New error file.

opcodes	* arm-dis.c (coprocessor_opcodes): New entries for ARMv8.2-A new
	FP16 instructions, including vfmal.f16 and vfmsl.f16.

include	* opcode/arm.h (ARM_AEXT2_V8_4A): Include Dot Product feature.
	(ARM_EXT2_V8_4A): New macro.
	(ARM_AEXT2_V8_4A): Likewise.
	(ARM_ARCH_V8_4A): Likewise.
This commit is contained in:
Jiong Wang
2017-11-08 13:15:12 +00:00
committed by Nick Clifton
parent 6e98b3428b
commit dec41383ff
16 changed files with 1590 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
include/opcode/arm.h
View File

@ -66,6 +66,7 @@
#define ARM_EXT2_RAS 0x00000080 /* RAS extension. */
#define ARM_EXT2_V8_3A 0x00000100 /* ARM V8.3A. */
#define ARM_EXT2_V8A 0x00000200 /* ARMv8-A. */
#define ARM_EXT2_V8_4A 0x00000400 /* ARM V8.4A. */
/* Co-processor space extensions. */
#define ARM_CEXT_XSCALE 0x00000001 /* Allow MIA etc. */
@ -156,6 +157,7 @@
#define ARM_AEXT2_V8_1A (ARM_AEXT2_V8A | ARM_EXT2_PAN)
#define ARM_AEXT2_V8_2A (ARM_AEXT2_V8_1A | ARM_EXT2_V8_2A | ARM_EXT2_RAS)
#define ARM_AEXT2_V8_3A (ARM_AEXT2_V8_2A | ARM_EXT2_V8_3A)
#define ARM_AEXT2_V8_4A (ARM_AEXT2_V8_3A | ARM_EXT2_V8_4A)
#define ARM_AEXT_V8M_BASE (ARM_AEXT_V6SM | ARM_EXT_DIV)
#define ARM_AEXT_V8M_MAIN ARM_AEXT_V7M
#define ARM_AEXT_V8M_MAIN_DSP ARM_AEXT_V7EM
@ -228,8 +230,8 @@
#define FPU_ARCH_CRYPTO_NEON_VFP_ARMV8 \
ARM_FEATURE_COPROC (FPU_CRYPTO_ARMV8 | FPU_NEON_ARMV8 | FPU_VFP_ARMV8)
#define FPU_ARCH_CRYPTO_NEON_VFP_ARMV8_DOTPROD \
ARM_FEATURE_COPROC (FPU_CRYPTO_ARMV8 | FPU_NEON_ARMV8 | FPU_VFP_ARMV8 | \
FPU_NEON_EXT_DOTPROD)
ARM_FEATURE_COPROC (FPU_CRYPTO_ARMV8 | FPU_NEON_ARMV8 | FPU_VFP_ARMV8 \
| FPU_NEON_EXT_DOTPROD)
#define ARCH_CRC_ARMV8 ARM_FEATURE_COPROC (CRC_EXT_ARMV8)
#define FPU_ARCH_NEON_VFP_ARMV8_1 \
ARM_FEATURE_COPROC (FPU_NEON_ARMV8 \
@ -287,6 +289,9 @@
CRC_EXT_ARMV8 | FPU_NEON_EXT_RDMA)
#define ARM_ARCH_V8_3A ARM_FEATURE (ARM_AEXT_V8A, ARM_AEXT2_V8_3A, \
CRC_EXT_ARMV8 | FPU_NEON_EXT_RDMA)
#define ARM_ARCH_V8_4A ARM_FEATURE (ARM_AEXT_V8A, ARM_AEXT2_V8_4A, \
CRC_EXT_ARMV8 | FPU_NEON_EXT_RDMA \
| FPU_NEON_EXT_DOTPROD)
#define ARM_ARCH_V8M_BASE ARM_FEATURE_CORE (ARM_AEXT_V8M_BASE, ARM_AEXT2_V8M)
#define ARM_ARCH_V8M_MAIN ARM_FEATURE_CORE (ARM_AEXT_V8M_MAIN, \
ARM_AEXT2_V8M_MAIN)