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Gianluca Guida 88729e9616 RISC-V: Support Zacas extension. 
https://github.com/riscvarchive/riscv-zacas/releases/tag/v1.0

The Zacas extension introduce compare-and-swap instructions to operate
on 32-bit, 64-bit and 128-bit (RV64 only) data values.

It introduces three new instructions:
  - amocas.w (32-bit CAS)
  - amocas.d (64-bit CAS)
  - amocas.q (128-bit CAS, RV64 only)

Like other AMOs in the A extension, Zacas instructions have '.aq',
'.rl' and '.aqrl' variations.

bfd/ChangeLog:

	* elfxx-riscv.c (riscv_implicit_subsets): 'A' implied by 'Zacas'.
	(riscv_supported_std_z_ext): Add 'Zacas' extension.
	(riscv_multi_subset_supports, riscv_multi_subset_supports_ext):
	Handle INSN_CLASS_ZACAS case.

gas/ChangeLog:

	* NEWS: Updated.
	* testsuite/gas/riscv/march-help.l: Updated.
	* testsuite/gas/riscv/zacas-32.d: New test (RV32).
        * testsuite/gas/riscv/zacas-fail-32.d: Likewise.
	* testsuite/gas/riscv/zacas-64.d: New test (RV64).
        * testsuite/gas/riscv/zacas-fail-64.d: Likewise.
	* testsuite/gas/riscv/zacas.s: New test source.
	* testsuite/gas/riscv/zacas-fail.s: Likewise.
	* testsuite/gas/riscv/zacas-fail-32.l: New file.
	* testsuite/gas/riscv/zacas-fail-64.l: Likewise.

include/ChangeLog:

	* include/opcode/riscv.h (INSN_CLASS_ZACAS): New definition.
	* include/opcode/riscv-opc.h (MATCH_AMOCAS_W, MASK_AMOCAS_W)
	(MATCH_AMOCAS_D, MASK_AMOCAS_D, MATCH_AMOCAS_Q, MASK_AMOCAS_Q):
	Likewise.
	(amocas_w, amocas_d, amocas_q): Declare instructions.

opcodes/ChangeLog:

	* riscv-opc.c (match_rs2_rd_even): New function.
	(amocas_w, amocas_d, amocas_q, amocas_w.aq)
	(amocas_d.aq, amocas_q.aq, amocas_w.rl, amocas_d.rl, amocas_q.rl)
	(amocas_w.aqrl, amocas_d.aqrl, amocas_q.aqrl): Add instructions.
2024-06-18 14:35:50 +08:00
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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: Support Zacas extension. 2024-06-18 14:35:50 +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 Add --rosegment option to BFD linker to stop the '-z separate-code' from generating two read-only segments. 2024-06-13 15:10:15 +01:00
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
ChangeLog-2018
ChangeLog-2019
ChangeLog-2020
ChangeLog-9103
collectorAPI.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
COPYING
COPYING3
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
environ.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
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
gcc-interface.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
getopt.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
hashtab.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
hp-symtab.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
leb128.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
libcollector.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
libfcollector.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
libiberty.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
longlong.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
lto-symtab.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
MAINTAINERS Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
md5.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
oasys.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
objalloc.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
obstack.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
os9k.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
partition.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
plugin-api.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
safe-ctype.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
sframe-api.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
sframe.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
sha1.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
simple-object.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
sort.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
splay-tree.h Update year range in copyright notice of binutils files 2024-01-04 22:58:12 +10:30
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