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Xiao Zeng 0b4595be3f RISC-V: Add support for Zvfbfwma extension 
This implements the Zvfbfwma extension, as of version 1.0.
View detailed information in:
<https://github.com/riscv/riscv-isa-manual/blob/main/src/bfloat16.adoc#zvfbfwma---vector-bf16-widening-mul-add>

1 In spec: "Zvfbfwma requires the Zvfbfmin extension and the Zfbfmin extension."
  1.1 In Embedded    Processor: Zvfbfwma -> Zvfbfmin -> Zve32f
  1.2 In Application Processor: Zvfbfwma -> Zvfbfmin -> V
  1.3 In both scenarios, there are: Zvfbfwma -> Zfbfmin

2 Depending on different usage scenarios, the Zvfbfwma extension may
depend on 'V' or 'Zve32f'. This patch only implements dependencies in
scenario of Embedded Processor. This is consistent with the processing
strategy in Zvfbfmin. In scenario of Application Processor, it is
necessary to explicitly indicate the dependent 'V' extension.

For relevant information in gcc, please refer to:
<https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=38dd4e26e07c6be7cf4d169141ee4f3a03f3a09d>

bfd/ChangeLog:

	* elfxx-riscv.c (riscv_multi_subset_supports): Handle Zvfbfwma.
	(riscv_multi_subset_supports_ext): Ditto.

gas/ChangeLog:

	* NEWS: Updated.
	* testsuite/gas/riscv/march-help.l: Ditto.
	* testsuite/gas/riscv/zvfbfwma.d: New test.
	* testsuite/gas/riscv/zvfbfwma.s: New test.

include/ChangeLog:

	* opcode/riscv-opc.h (MATCH_VFWMACCBF16_VF): Define.
	(MASK_VFWMACCBF16_VF): Ditto.
	(MATCH_VFWMACCBF16_VV): Ditto.
	(MASK_VFWMACCBF16_VV): Ditto.
	(DECLARE_INSN): New declarations for Zvfbfwma.
	* opcode/riscv.h (enum riscv_insn_class): Add
	INSN_CLASS_ZVFBFWMA

opcodes/ChangeLog:

	* riscv-opc.c: Add Zvfbfwma instructions.
2024-06-06 16:10:53 +08:00
..
aout Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
cgen Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
coff riscv64-pei uninitialised data writing relocs 2024-01-25 08:41:14 +10:30
elf Add new ELF section and segment types to readelf. 2024-05-28 10:12:28 +01:00
gdb Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
mach-o Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
opcode RISC-V: Add support for Zvfbfwma extension 2024-06-06 16:10:53 +08:00
sim sim: Fix -Werror=shadow=local by changing mem to addr in sim_{read,write} 2024-01-22 14:22:30 +01:00
som Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
vms Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
alloca-conf.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
ansidecl.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
bfdlink.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
binary-io.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
bout.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
ChangeLog gdb: ignore -Wregister instead of -Wdeprecated-register 2024-04-07 22:57:39 -04:00
ChangeLog-0415
ChangeLog-2016
ChangeLog-2017
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ChangeLog-9103
collectorAPI.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
COPYING
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ctf-api.h include, libctf: improve documentation 2024-05-21 11:15:19 +01:00
ctf.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
demangle.h Import gcc commit 65388b28656d65595bdaf191df85af81c35ca63 which adds support for explicit object member function mangling. 2024-01-17 12:06:48 +00:00
diagnostics.h gdb: ignore -Wregister instead of -Wdeprecated-register 2024-04-07 22:57:39 -04:00
dis-asm.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
dwarf2.def Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
dwarf2.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
dyn-string.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
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fibheap.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
filenames.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
floatformat.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
fnmatch.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
fopen-bin.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
fopen-same.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
fopen-vms.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
gcc-c-fe.def Synchronize GCC compile plugin headers 2024-02-29 15:34:38 -07:00
gcc-c-interface.h Synchronize GCC compile plugin headers 2024-02-29 15:34:38 -07:00
gcc-cp-fe.def Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
gcc-cp-interface.h Synchronize GCC compile plugin headers 2024-02-29 15:34:38 -07:00
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MAINTAINERS Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
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symcat.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
timeval-utils.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
vtv-change-permission.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
xregex2.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
xregex.h
xtensa-config.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
xtensa-dynconfig.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
xtensa-isa-internal.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
xtensa-isa.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30