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Szabolcs Nagy e5791079c6 New log implementation
The new implementations are provided under !__OBSOLETE_MATH, it uses
ISO C99 code.  With default settings the worst case error in nearest
rounding mode is 0.519 ULP with inlined fma and fma contraction.  It uses
a 2 KB lookup table, on aarch64 .text+.rodata size of libm.a is increased
by 1703 bytes.  The w_log.c wrapper is disabled since error handling is
inline in the new code.

New __HAVE_FAST_FMA and __HAVE_FAST_FMA_DEFAULT feature macros were
added to enable selecting between the code path that uses fma and the
one that does not.  Targets supposed to set __HAVE_FAST_FMA_DEFAULT
if they have single instruction fma and the compiler can actually
inline it (gcc has __FP_FAST_FMA macro but that does not guarantee
inlining with -fno-builtin-fma).

Improvements on Cortex-A72:
latency: 1.9x
thruput: 2.3x
2018-06-27 15:40:49 +02:00
config Sync with upstream gcc. 2016-06-23 15:54:55 -04:00
etc Remove spurious empty line in changelog entry. 2016-03-22 10:29:22 +01:00
include Sync with upstream gcc. 2016-06-23 15:54:55 -04:00
libgloss libgloss: microblaze: adjust handlers to be weak. 2018-05-03 15:16:13 -04:00
newlib New log implementation 2018-06-27 15:40:49 +02:00
texinfo
winsup Cygwin: fix bumptious GCC 7 warnings 2018-06-26 17:20:48 +02:00
.drone.yml Continuous Integration: Add Tea CI build configuration. 2016-06-28 13:42:59 +02:00
.gitattributes
.gitignore
COPYING
COPYING.LIB
COPYING.LIBGLOSS
COPYING.NEWLIB Change license to FreeBSD License for RISC-V 2017-08-21 11:08:54 +02:00
COPYING3
COPYING3.LIB
ChangeLog Sync with upstream gcc. 2016-06-23 15:54:55 -04:00
MAINTAINERS
Makefile.def Sync with upstream gcc. 2016-06-23 15:54:55 -04:00
Makefile.in Add missing OBJCOPY variable to Makefile.in 2016-06-26 17:27:03 +01:00
Makefile.tpl Sync with upstream gcc. 2016-06-23 15:54:55 -04:00
README
README-maintainer-mode
compile
config-ml.in
config.guess Sync with upstream gcc. 2016-06-23 15:54:55 -04:00
config.rpath
config.sub Sync with upstream gcc. 2016-06-23 15:54:55 -04:00
configure Sync with upstream gcc. 2016-06-23 15:54:55 -04:00
configure.ac Sync with upstream gcc. 2016-06-23 15:54:55 -04:00
depcomp
djunpack.bat
install-sh
libtool.m4
ltgcc.m4
ltmain.sh
ltoptions.m4
ltsugar.m4
ltversion.m4
lt~obsolete.m4
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missing
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ylwrap

README

		   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.