forked from Imagelibrary/binutils-gdb
71e59ebefc
There is inconsistency regarding whether or not +sme implies +sve2 and whether +nosve2 implies +nosme. In particular, GCC 14 assumes the dependency exists, and canonicalises target strings accordingly, whereas LLVM treats the features as independent. This patch removes the positive implication while retaining the negative implication. This is the more permissive choice in each case, and allows us to support target strings written with either interpretation in mind. This reduces our ability to detect invalid instructions, but we already can't rely on this detection because gas doesn't know whether functions might be executed in streaming mode and/or non-streaming mode. The aarch64_feature_enable_set change is functionally redundant within this patch. It is included because the longer term intention is to instead remove the workaround in aarch64_parse_features, once the internal feature checks have been modified to support having both AARCH64_FEATURE_SME set and AARCH64_FEATURE_SVE unset. Similarly, the dependency from +sme to +fp16 is currently redundant, but this redundancy relies upon an incorrect dependency from +fcma to +fp16. This can be fixed in the future, but it might require modifying internal feature checks for a few FCMA instructions, so it's left unchanged for now.
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.