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MIPS/GAS: Split Loongson MMI Instructions from loongson2f/3a

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The MMI instruction set has been implemented in many Loongson
processors.  There is a lot of software optimized for MMI.  This patch
splits MMI from loongson2f/3a, and adds GAS and disassembler options for
MMI instructions.

2018-07-20  Chenghua Xu  <paul.hua.gm@gmail.com>
            Maciej W. Rozycki  <macro@mips.com>

bfd/
	* elfxx-mips.c (print_mips_ases): Add MMI extension.

binutils/
	* readelf.c (print_mips_ases): Add MMI extension.

gas/
	* NEWS: Mention MultiMedia extensions Instructions (MMI)
	support.
	* config/tc-mips.c (options): Add OPTION_LOONGSON_MMI and
	OPTION_NO_LOONGSON_MMI.
	(md_longopts): Likewise.
	(mips_ases): Define availability for MMI.
	(mips_convert_ase_flags): Map ASE_LOONGSON_MMI to
	AFL_ASE_LOONGSON_MMI.
	(mips_cpu_info_table): Add ASE_LOONGSON_MMI for loongson2f/3a.
	(md_show_usage): Add help for -mloongson-mmi and
	-mno-loongson-mmi.
	* doc/as.texi: Document -mloongson-mmi, -mno-loongson-mmi.
	* doc/c-mips.texi: Document -mloongson-mmi, -mno-loongson-mmi,
	.set loongson-mmi and .set noloongson-mmi.
	* testsuite/gas/mips/loongson-2f.d: Move mmi test to ...
	* testsuite/gas/mips/loongson-2f-mmi.d: Here.  Add ISA/ASE
	flag verification.
	* testsuite/gas/mips/loongson-2f.s: Move mmi test to ...
	* testsuite/gas/mips/loongson-2f-mmi.s: Here.
	* testsuite/gas/mips/loongson-3a.d: Move mmi test to ...
	* testsuite/gas/mips/loongson-3a-mmi.d: Here.  Add ISA/ASE
	flag verification.
	* testsuite/gas/mips/loongson-3a.s: Move mmi test to ...
	* testsuite/gas/mips/loongson-3a-mmi.s: Here.
	* testsuite/gas/mips/mips.exp: Run loongson-2f-mmi and
	loongson-3a-mmi tests.

include/
	* elf/mips.h (AFL_ASE_MMI): New macro.
	(AFL_ASE_MASK): Update to include AFL_ASE_LOONGSON_MMI.
	* opcode/mips.h (ASE_LOONGSON_MMI): New macro.

opcodes/
	* mips-dis.c (mips_arch_choices): Add MMI to loongson2f and
	loongson3a descriptors.
	(parse_mips_ase_option): Handle -M loongson-mmi option.
	(print_mips_disassembler_options): Document -M loongson-mmi.
	* mips-opc.c (LMMI): New macro.
	(mips_opcodes): Replace IL2F|IL3A marking with LMMI for MMI
	instructions.
This commit is contained in:
Chenghua Xu
2018-07-20 13:21:33 +01:00
committed by Maciej W. Rozycki
parent db841b6fcd
commit 8095d2f70e
24 changed files with 591 additions and 422 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
opcodes/mips-dis.c
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@@ -626,11 +626,11 @@ const struct mips_arch_choice mips_arch_choices[] =
NULL, 0, mips_cp1_names_numeric, mips_hwr_names_numeric },
{ "loongson2f", 1, bfd_mach_mips_loongson_2f, CPU_LOONGSON_2F,
ISA_MIPS3 | INSN_LOONGSON_2F, 0, mips_cp0_names_numeric,
ISA_MIPS3 | INSN_LOONGSON_2F, ASE_LOONGSON_MMI, mips_cp0_names_numeric,
NULL, 0, mips_cp1_names_numeric, mips_hwr_names_numeric },
{ "loongson3a", 1, bfd_mach_mips_loongson_3a, CPU_LOONGSON_3A,
ISA_MIPS64R2 | INSN_LOONGSON_3A, 0, mips_cp0_names_numeric,
ISA_MIPS64R2 | INSN_LOONGSON_3A, ASE_LOONGSON_MMI, mips_cp0_names_numeric,
NULL, 0, mips_cp1_names_mips3264, mips_hwr_names_numeric },
{ "octeon", 1, bfd_mach_mips_octeon, CPU_OCTEON,
@@ -935,6 +935,12 @@ parse_mips_ase_option (const char *option)
return TRUE;
}
if (CONST_STRNEQ (option, "loongson-mmi"))
{
mips_ase |= ASE_LOONGSON_MMI;
return TRUE;
}
return FALSE;
}
@@ -2582,6 +2588,10 @@ static struct
{ "ginv", N_("Recognize the Global INValidate (GINV) ASE "
"instructions.\n"),
MIPS_OPTION_ARG_NONE },
{ "loongson-mmi",
N_("Recognize the Loongson MultiMedia extensions "
"Instructions (MMI) ASE instructions.\n"),
MIPS_OPTION_ARG_NONE },
{ "gpr-names=", N_("Print GPR names according to specified ABI.\n\
Default: based on binary being disassembled.\n"),
MIPS_OPTION_ARG_ABI },