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saurabh.jha@arm.com 444c60fe33 gas, aarch64: Add SVE2 lut extension
Introduces instructions for the SVE2 lut extension for AArch64. They are documented in the following links:
* luti2: https://developer.arm.com/documentation/ddi0602/2024-03/SVE-Instructions/LUTI2--Lookup-table-read-with-2-bit-indices-?lang=en
* luti4: https://developer.arm.com/documentation/ddi0602/2024-03/SVE-Instructions/LUTI4--Lookup-table-read-with-4-bit-indices-?lang=en

These instructions use new SVE2 vector operands. They are called
SVE_Zm1_23_INDEX, SVE_Zm2_22_INDEX, and Zm3_12_INDEX and they have
1 bit, 2 bit, and 3 bit indices respectively.

The lsb and width of these new operands are the same as many existing
operands but the convention is to give different names to fields that
serve different purpose so we introduced new fields in aarch64-opc.c
and aarch64-opc.h.

We made a design choice for the second operand of the halfword variant of
luti4 with two register tables. We could have either defined a new operand,
like SVE_Znx2, or we could have use the existing operand SVE_ZnxN. With
the new operand, we would need to implement constraints on register
lists based on either operand or opcode flag. With existing operand, we
could just existing constraint checks using opcode flag. We chose
the second approach and went with SVE_ZnxN and added opcode flag to
enforce lengths of vector register list operands. This way, we can reuse
the existing constraint check logic.
2024-05-28 17:28:29 +01:00
bfd Updated Spanish translation for the BFD sub-directory. 2024-05-28 14:48:08 +01:00
binutils Add new ELF section and segment types to readelf. 2024-05-28 10:12:28 +01:00
config
contrib
cpu
elfcpp
etc
gas gas, aarch64: Add SVE2 lut extension 2024-05-28 17:28:29 +01:00
gdb Use bool in thread_events 2024-05-28 09:54:48 -06:00
gdbserver Stop 'configure --enable-threading' if std::thread doesn't work 2024-05-16 13:03:58 +01:00
gdbsupport Stop 'configure --enable-threading' if std::thread doesn't work 2024-05-16 13:03:58 +01:00
gnulib
gold
gprof
gprofng gprofng: use StringBuilder to create long messages 2024-05-21 19:54:59 -07:00
include gas, aarch64: Add SVE2 lut extension 2024-05-28 17:28:29 +01:00
ld RISC-V: Fixed overwritten IRELATIVE relocs in the .rel.iplt for data reloc. 2024-05-28 01:38:26 +08:00
libbacktrace
libctf libctf testsuite compilation failure 2024-05-23 08:11:12 +09:30
libdecnumber
libiberty
libsframe
opcodes gas, aarch64: Add SVE2 lut extension 2024-05-28 17:28:29 +01:00
readline
sim sim: riscv: Fix build issue due to recent binutils commit 2024-05-09 17:04:14 +02:00
texinfo
zlib
.cvsignore
.editorconfig
.gitattributes
.gitignore
.pre-commit-config.yaml gdb: bump black version to 24.4.2 2024-05-16 11:34:40 -04:00
ar-lib
ChangeLog
compile
config-ml.in
config.guess
config.rpath
config.sub
configure
configure.ac
COPYING
COPYING3
COPYING3.LIB
COPYING.LIB
COPYING.LIBGLOSS
COPYING.NEWLIB
depcomp
djunpack.bat
install-sh
libtool.m4
lt~obsolete.m4
ltgcc.m4
ltmain.sh
ltoptions.m4
ltsugar.m4
ltversion.m4
MAINTAINERS
Makefile.def
Makefile.in
Makefile.tpl
makefile.vms
missing
mkdep
mkinstalldirs
move-if-change
multilib.am
README
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SECURITY.txt
setup.com
src-release.sh Add extra files found in etc/ sub-directory to ETC_SUPPORT in src-release.sh 2024-05-20 16:12:53 +01:00
symlink-tree
test-driver
ylwrap

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