From dec41383fff7116c9f66cdeca3105e968047a4e6 Mon Sep 17 00:00:00 2001 From: Jiong Wang Date: Wed, 8 Nov 2017 13:15:12 +0000 Subject: 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 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. --- gas/doc/c-arm.texi | 1 + 1 file changed, 1 insertion(+) (limited to 'gas/doc') diff --git a/gas/doc/c-arm.texi b/gas/doc/c-arm.texi index 9606de4..5e518c6 100644 --- a/gas/doc/c-arm.texi +++ b/gas/doc/c-arm.texi @@ -237,6 +237,7 @@ names are recognized: @code{armv8.2-a}, @code{armv8.3-a}, @code{armv8-r}, +@code{armv8.4-a}, @code{iwmmxt} @code{iwmmxt2} and -- cgit v1.1