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Tamar Christina 369c9167d4 Fix AArch64 encodings for by element instructions.
Some instructions in Armv8-a place a limitation on FP16 registers that can be
used as the register from which to select an element from.

e.g. fmla restricts Rm to 4 bits when using an FP16 register.  This restriction
does not apply for all instructions, e.g. fcmla does not have this restriction
as it gets an extra bit from the M field.

Unfortunately, this restriction to S_H was added for all _Em operands before,
meaning for a large number of instructions you couldn't use the full register
file.

This fixes the issue by introducing a new operand _Em16 which applies this
restriction only when paired with S_H and leaves the _Em and the other
qualifiers for _Em16 unbounded (i.e. using the full 5 bit range).

Also the patch updates all instructions that should be affected by this.

opcodes/

	PR binutils/23192
	* aarch64-asm-2.c: Regenerate.
	* aarch64-dis-2.c: Likewise.
	* aarch64-opc-2.c: Likewise.
	* aarch64-dis.c (aarch64_ext_reglane): Add AARCH64_OPND_Em16 constraint.
	* aarch64-opc.c (operand_general_constraint_met_p,
	aarch64_print_operand): Likewise.
	* aarch64-tbl.h (aarch64_opcode_table): Change Em to Em16 for smlal,
	smlal2, fmla, fmls, fmul, fmulx, sqrdmlah, sqrdlsh, fmlal, fmlsl,
	fmlal2, fmlsl2.
	(AARCH64_OPERANDS): Add Em2.

gas/

	PR binutils/23192
	* config/tc-aarch64.c (process_omitted_operand, parse_operands): Add
	AARCH64_OPND_Em16
	* testsuite/gas/aarch64/advsimd-armv8_3.s: Expand tests to cover upper
	16 registers.
	* testsuite/gas/aarch64/advsimd-armv8_3.d: Likewise.
	* testsuite/gas/aarch64/advsimd-compnum.s: Likewise.
	* testsuite/gas/aarch64/advsimd-compnum.d: Likewise.
	* testsuite/gas/aarch64/sve.d: Likewise.

include/

	PR binutils/23192
	*opcode/aarch64.h (aarch64_opnd): Add AARCH64_OPND_Em16.
2018-06-29 12:14:42 +01:00
bfd Automatic date update in version.in 2018-06-29 00:00:39 +00:00
binutils Updated translations. 2018-06-26 14:03:16 +01:00
config Bump to autoconf 2.69 and automake 1.15.1 2018-06-19 16:55:06 -04:00
cpu PR22069, Several instances of register accidentally spelled as regsiter 2018-05-09 15:55:28 +09:30
elfcpp Add 2.30 branch notes to ChangeLogs and NEWS files. 2018-06-24 18:36:15 +01:00
etc Bump to autoconf 2.69 and automake 1.15.1 2018-06-19 16:55:06 -04:00
gas Fix AArch64 encodings for by element instructions. 2018-06-29 12:14:42 +01:00
gdb Add --enable-codesign to gdb's configure 2018-06-28 15:13:43 -06:00
gold Updated translations. 2018-06-26 14:03:16 +01:00
gprof Regenerate configure and pot files with updated binutils version number. 2018-06-24 19:13:01 +01:00
include Fix AArch64 encodings for by element instructions. 2018-06-29 12:14:42 +01:00
intl Bump to autoconf 2.69 and automake 1.15.1 2018-06-19 16:55:06 -04:00
ld Updated translations. 2018-06-26 14:03:16 +01:00
libdecnumber Bump to autoconf 2.69 and automake 1.15.1 2018-06-19 16:55:06 -04:00
libiberty Bump to autoconf 2.69 and automake 1.15.1 2018-06-19 16:55:06 -04:00
opcodes Fix AArch64 encodings for by element instructions. 2018-06-29 12:14:42 +01:00
readline Bump to autoconf 2.69 and automake 1.15.1 2018-06-19 16:55:06 -04:00
sim Bump to autoconf 2.69 and automake 1.15.1 2018-06-19 16:55:06 -04:00
texinfo
zlib Regen doc/Makefile.in 2018-06-21 23:00:05 +09:30
.cvsignore
.gitattributes
.gitignore Add archives and make stamps to the .gitignore file. 2016-09-27 15:10:42 +01:00
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ChangeLog Regenerate configure and pot files with updated binutils version number. 2018-06-24 19:13:01 +01:00
compile
config-ml.in Update top level configure files by synchronizing them with gcc. 2018-01-10 15:29:21 +00:00
config.guess Bring in support for the NFP target in the config.sub file. 2018-05-01 16:35:04 +01:00
config.rpath
config.sub Bring in support for the NFP target in the config.sub file. 2018-05-01 16:35:04 +01:00
configure Regenerate configure and pot files with updated binutils version number. 2018-06-24 19:13:01 +01:00
configure.ac Bump to autoconf 2.69 and automake 1.15.1 2018-06-19 16:55:06 -04:00
COPYING
COPYING3
COPYING3.LIB
COPYING.LIB
COPYING.LIBGLOSS Update the address of the FSF in the copyright notice of files which were using the old address. 2017-12-14 12:48:55 +00:00
COPYING.NEWLIB
depcomp
djunpack.bat
install-sh
libtool.m4 Bump to autoconf 2.69 and automake 1.15.1 2018-06-19 16:55:06 -04:00
lt~obsolete.m4
ltgcc.m4
ltmain.sh
ltoptions.m4
ltsugar.m4
ltversion.m4
MAINTAINERS
Makefile.def This was already applied on the GCC side. 2018-06-19 00:05:40 +02:00
Makefile.in This was already applied on the GCC side. 2018-06-19 00:05:40 +02:00
Makefile.tpl This was already applied on the GCC side. 2018-06-19 00:05:40 +02:00
makefile.vms
missing
mkdep
mkinstalldirs
move-if-change Update `move-if-change' from gnulib 2014-11-16 17:04:02 +01:00
README
README-maintainer-mode Bump to autoconf 2.69 and automake 1.15.1 2018-06-19 16:55:06 -04:00
setup.com
src-release.sh Improve junk file removal in source tarball creation script. 2018-01-30 17:48:24 +00:00
symlink-tree
test-driver Bump to autoconf 2.69 and automake 1.15.1 2018-06-19 16:55:06 -04:00
ylwrap

		   README for GNU development tools

This directory contains various GNU compilers, assemblers, linkers, 
debuggers, etc., plus their support routines, definitions, and documentation.

If you are receiving this as part of a GDB release, see the file gdb/README.
If with a binutils release, see binutils/README;  if with a libg++ release,
see libg++/README, etc.  That'll give you info about this
package -- supported targets, how to use it, how to report bugs, etc.

It is now possible to automatically configure and build a variety of
tools with one command.  To build all of the tools contained herein,
run the ``configure'' script here, e.g.:

	./configure 
	make

To install them (by default in /usr/local/bin, /usr/local/lib, etc),
then do:
	make install

(If the configure script can't determine your type of computer, give it
the name as an argument, for instance ``./configure sun4''.  You can
use the script ``config.sub'' to test whether a name is recognized; if
it is, config.sub translates it to a triplet specifying CPU, vendor,
and OS.)

If you have more than one compiler on your system, it is often best to
explicitly set CC in the environment before running configure, and to
also set CC when running make.  For example (assuming sh/bash/ksh):

	CC=gcc ./configure
	make

A similar example using csh:

	setenv CC gcc
	./configure
	make

Much of the code and documentation enclosed is copyright by
the Free Software Foundation, Inc.  See the file COPYING or
COPYING.LIB in the various directories, for a description of the
GNU General Public License terms under which you can copy the files.

REPORTING BUGS: Again, see gdb/README, binutils/README, etc., for info
on where and how to report problems.