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Marek Polacek 0173bd2a03 re PR c/65179 (Introduce new C warning: -Wshift-negative-value) 
PR c/65179
	* c-common.c (c_fully_fold_internal): Warn when left shifting a
	negative value.
	* c.opt (Wshift-negative-value): New option.
	* c-opts.c (c_common_post_options): Set warn_shift_negative_value
	when -Wextra and C99/C++11 mode.

	* c-typeck.c (build_binary_op): Warn when left shifting a negative
	value.

	* typeck.c (cp_build_binary_op): Warn when left shifting a negative
	value.

	* doc/invoke.texi: Document -Wshift-negative-value.

	* c-c++-common/Wshift-negative-value-1.c: New test.
	* testsuite/c-c++-common/Wshift-negative-value-2.c: New test.
	* testsuite/c-c++-common/Wshift-negative-value-3.c: New test.
	* testsuite/c-c++-common/Wshift-negative-value-4.c: New test.
	* testsuite/c-c++-common/Wshift-negative-value-5.c: New test.
	* testsuite/c-c++-common/Wshift-negative-value-6.c: New test.
	* testsuite/gcc.dg/c90-left-shift-1.c: New test.
	* testsuite/gcc.dg/c99-const-expr-7.c: Add dg-error.
	* testsuite/gcc.dg/c99-left-shift-1.c: New test.

From-SVN: r222889
2015-05-07 19:36:31 +00:00
boehm-gc Include target-utils.exp in boehm-gc testing 2014-12-18 09:42:22 +00:00
config Improve the test in bitfields.m4 2015-05-05 03:41:53 +00:00
contrib * gennews (files): Add files for GCC 5. 2015-04-22 10:14:03 +02:00
fixincludes fixincludes update for musl support 2015-04-22 14:18:16 +00:00
gcc re PR c/65179 (Introduce new C warning: -Wshift-negative-value) 2015-05-07 19:36:31 +00:00
gnattools
gotools re PR go/65462 (Use of 'go get' with gccgo is not finding dependencies correctly) 2015-03-24 19:50:31 +00:00
include partition.h (struct partition_elem): Re-order elements to avoid padding. 2015-03-19 11:44:08 +00:00
INSTALL
intl
libada re PR target/65351 (libiberty's pic version contains non-pic code on m32 darwin; causes bootstrap fail building libcc1.) 2015-04-10 06:43:52 +00:00
libatomic Avoid misaligned atomic operations 2015-01-21 09:17:03 -08:00
libbacktrace Move wrong ChangeLog entry from the toplevel ChangeLog to 2015-01-26 14:51:12 +00:00
libcc1 remove need for store_values_directly 2015-04-18 18:13:18 +00:00
libcilkrts configure.ac: Move AM_ENABLE_MULTILIB before AC_PROG_CC. 2015-01-26 22:54:31 +00:00
libcpp Fix indentation issues seen by -Wmisleading-indentation 2015-05-05 19:41:11 +00:00
libdecnumber Update copyright years. 2015-01-05 13:33:28 +01:00
libffi re PR libffi/65567 (ERROR: tcl error sourcing /test/gnu/gcc/gcc/libffi/testsuite/libffi.complex/complex.exp) 2015-03-29 20:46:17 +00:00
libgcc unknown-elf.h (STARTFILE_SPEC): Add conditional linking of crtfastmath.o. 2015-05-06 12:01:05 -04:00
libgfortran libstdc++, libgfortran gthr workaround for musl 2015-04-22 14:24:11 +00:00
libgo re PR go/66016 (Accessing nil Func's name results in crash) 2015-05-05 16:38:57 +00:00
libgomp oacc-init.c (acc_device_lock): Add explanatory comment. 2015-05-06 19:10:14 +00:00
libiberty libiberty/setenv.c: Do not declare environ if defined as a macro. 2015-04-22 19:34:06 +00:00
libitm libitm fixes for musl support 2015-04-22 14:11:25 +00:00
libjava cygwin.h (LIBGCJ_SONAME): Set libgcj version to -16. 2015-01-29 00:34:03 +00:00
libmpx configure.ac: Drop AC_PROG_CXX and friends, since libmpx has no C++ sources. 2015-04-27 15:02:46 +00:00
libobjc Improve the test in bitfields.m4 2015-05-05 03:41:53 +00:00
liboffloadmic libgomp: rework initialization of offloading 2015-04-06 12:40:28 +00:00
libquadmath configure.ac: Move AM_ENABLE_MULTILIB before AC_PROG_CC. 2015-01-26 14:57:41 +00:00
libsanitizer re PR sanitizer/64839 (libsanitizer shouldn't require <rpc/xdr.h>) 2015-04-13 08:59:55 +00:00
libssp ssp.c (__guard_setup): For Windows... 2015-02-09 18:44:08 -07:00
libstdc++-v3 c.opt (Wterminate): New. 2015-05-05 22:25:01 -04:00
libvtv libvtv: autoreconf. 2015-02-09 12:41:22 +01:00
lto-plugin Revert the PR lto/64837 fix 2015-02-06 05:55:42 -08:00
maintainer-scripts update_version_svn: Update DATESTAMP also on branches/gcc-[0-9]+-branch. 2015-04-13 11:07:11 +02:00
zlib Always use PIC option with -shared in libtool 2014-11-21 08:49:17 -08:00
.dir-locals.el
.gitignore Local Vim config with GNU formatting. 2014-12-09 13:45:47 +00:00
ABOUT-NLS
ChangeLog configure.ac: Match $host configured with triplets. 2015-05-03 17:31:26 +00:00
ChangeLog.jit Merger of dmalcolm/jit branch from git 2014-11-11 21:55:52 +00:00
ChangeLog.tree-ssa
compile Update from upstream Automake files. 2014-11-16 14:07:13 +00:00
config-ml.in
config.guess config.sub: Update from upstream, to 2015-01-01 version. 2015-01-02 09:30:21 +00:00
config.rpath
config.sub config.sub: Update from upstream, to 2015-01-01 version. 2015-01-02 09:30:21 +00:00
configure configure.ac: Match $host configured with triplets. 2015-05-03 17:31:26 +00:00
configure.ac configure.ac: Match $host configured with triplets. 2015-05-03 17:31:26 +00:00
COPYING
COPYING3
COPYING3.LIB
COPYING.LIB
COPYING.RUNTIME
depcomp Update from upstream Automake files. 2014-11-16 14:07:13 +00:00
install-sh Update from upstream Automake files. 2014-11-16 14:07:13 +00:00
libtool-ldflags
libtool.m4 Always use PIC option with -shared in libtool 2014-11-21 08:49:17 -08:00
lt~obsolete.m4
ltgcc.m4
ltmain.sh
ltoptions.m4
ltsugar.m4
ltversion.m4
MAINTAINERS MAINTAINERS (Various Maintainers): Add myself as instruction combiner maintainer. 2015-04-21 00:03:37 +02:00
Makefile.def Makefile.def: Add libmpx. 2015-03-10 09:37:41 +00:00
Makefile.in Makefile.tpl: Remove surplus whitespace throughout. 2015-04-22 20:32:18 +02:00
Makefile.tpl Makefile.tpl: Remove surplus whitespace throughout. 2015-04-22 20:32:18 +02:00
missing Update from upstream Automake files. 2014-11-16 14:07:13 +00:00
mkdep
mkinstalldirs Update from upstream Automake files. 2014-11-16 14:07:13 +00:00
move-if-change Update move-if-change from gnulib 2014-11-16 16:12:44 +00:00
README
symlink-tree
ylwrap Update from upstream Automake files. 2014-11-16 14:07:13 +00:00

README 

This directory contains the GNU Compiler Collection (GCC).

The GNU Compiler Collection is free software.  See the files whose
names start with COPYING for copying permission.  The manuals, and
some of the runtime libraries, are under different terms; see the
individual source files for details.

The directory INSTALL contains copies of the installation information
as HTML and plain text.  The source of this information is
gcc/doc/install.texi.  The installation information includes details
of what is included in the GCC sources and what files GCC installs.

See the file gcc/doc/gcc.texi (together with other files that it
includes) for usage and porting information.  An online readable
version of the manual is in the files gcc/doc/gcc.info*.

See http://gcc.gnu.org/bugs/ for how to report bugs usefully.

Copyright years on GCC source files may be listed using range
notation, e.g., 1987-2012, indicating that every year in the range,
inclusive, is a copyrightable year that could otherwise be listed
individually.