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49e7a9d4b8
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Roger Sayle 49e7a9d4b8 re PR rtl-optimization/28173 (misses constant folding) 
PR rtl-optimization/28173
	* simplify-rtx.c (simplify_binary_operation_1) <IOR>:  Optimize
	(X & C1) | C2 as C2 when (C1 & C2) == C1 and X has no side-effects.
	Optimize (X & C1) | C2 as X | C2 when (C1 | C2) == ~0.
	Canonicalize (X & C1) | C2 as (X & (C1 & ~C2)) | C2.
	<AND>: Canonicalize (X | C1) & C2 as (X & C2) | (C1 & C2).

	* gcc.target/i386/andor-1.c: New test case.

From-SVN: r122116
2007-02-19 00:54:29 +00:00
boehm-gc gcconfig.h: use LINUX_STACKBOTTOM so it works with Linux 2.6, reactivate MPROTECT_VDB 2007-02-05 18:18:11 +00:00
config configure: Rebuilt. 2007-02-18 22:51:18 +00:00
contrib texi2pod.pl: Handle @subsubsection, ignore @anchor. 2007-02-16 01:02:57 +00:00
fixincludes * Makefile.in: Added "pdf" target to .PHONY. 2007-02-15 20:31:21 -08:00
gcc re PR rtl-optimization/28173 (misses constant folding) 2007-02-19 00:54:29 +00:00
gnattools configure.ac: Update TOOLS_TARGET_PAIRS configuration to match gcc/ada/Makefile.in. 2007-02-11 11:28:52 +00:00
include * libiberty.h (pex_write_input): Remove prototype. 2007-02-09 15:28:13 +00:00
INSTALL
intl Makefile.in (distclean): Delete config files. 2006-09-27 18:51:52 +09:30
libada re PR bootstrap/30541 (Top-level should pass GNATBIND, GNATLINK and GNATMAKE variables down) 2007-01-23 16:37:09 +00:00
libcpp re PR preprocessor/30468 (-M not fully chops dirname) 2007-01-30 15:50:00 +00:00
libdecnumber decExcept.c: New. 2007-01-29 23:01:35 +00:00
libffi ffi.c (ffi_prep_args, [...]): Add long double handling. 2007-02-13 07:54:40 +00:00
libgcc Makefile.in: Make libgcc_s.so depend on libunwind.so. 2007-02-05 16:04:14 +00:00
libgfortran * runtime/memory.c (deallocate): Correct comment. 2007-02-16 10:07:00 +00:00
libgomp [multiple changes] 2007-02-07 14:35:17 +01:00
libiberty hex.c: Fix typo. 2007-01-31 15:05:50 -05:00
libjava * gnu/classpath/jdwp/natVMVirtualMachine.cc 2007-02-17 01:21:28 +00:00
libmudflap [multiple changes] 2007-02-07 14:35:17 +01:00
libobjc objc-list.h (list_free): Add keyword 'inline' to avoid unused warning. 2007-02-18 11:55:53 +00:00
libssp Index: config/ChangeLog 2006-10-15 07:42:57 +00:00
libstdc++-v3 PR libstdc++/28080 (partial) 2007-02-18 11:32:44 +00:00
maintainer-scripts * crontab: No longer build snapshots for 4.0.x. 2007-01-29 22:27:12 +00:00
zlib aclocal.m4: Regenerate to use multi.m4. 2007-01-17 19:48:52 +00:00
ABOUT-NLS
ChangeLog configure: Rebuilt. 2007-02-18 22:51:18 +00:00
ChangeLog.tree-ssa
compile COPYING, [...]: Sync from upstream sources. 2005-07-14 01:08:13 +00:00
config-ml.in config-ml.in: Alter CCASFLAGS to include special multilib options the same as is done for CFLAGS. 2006-06-13 16:48:23 -04:00
config.guess config.guess: Import latest version. 2006-12-11 15:11:34 +11:00
config.rpath all files: Update FSF address. 2005-07-16 02:30:53 +00:00
config.sub config.sub: Sync with src. 2007-02-09 16:31:28 +00:00
configure configure: Rebuilt. 2007-02-18 22:51:18 +00:00
configure.ac configure.ac: Drop multiple occurrences of --enable-languages, and fix its quoting. 2007-02-18 22:45:12 +00:00
COPYING COPYING, [...]: Sync from upstream sources. 2005-07-14 01:08:13 +00:00
COPYING.LIB Update COPYING.LIB from upstream. Correct last Changelog. 2005-07-14 01:41:54 +00:00
depcomp
install-sh COPYING, [...]: Sync from upstream sources. 2005-07-14 01:08:13 +00:00
libtool-ldflags libtool-ldflags: New script. 2006-01-03 00:30:27 +00:00
libtool.m4 all files: Update FSF address. 2005-07-16 02:30:53 +00:00
ltcf-c.sh ltcf-c.sh (whole_archive_flag_spec): Remove '-all_load $convenience' to match upstream libtool for darwin. 2005-11-18 23:53:08 +01:00
ltcf-cxx.sh all files: Update FSF address. 2005-07-16 02:30:53 +00:00
ltcf-gcj.sh all files: Update FSF address. 2005-07-16 02:30:53 +00:00
ltconfig * ltconfig (freebsd*): Default to elf. 2007-02-14 13:19:26 +00:00
ltmain.sh Port to hosts whose 'sort' and 'tail' implementations treat operands with leading '+' as file names... 2006-07-06 23:24:51 +00:00
MAINTAINERS MAINTAINERS (Language Front End Maintainers): Update my mail address. 2007-02-11 11:06:15 +00:00
Makefile.def re PR bootstrap/30541 (Top-level should pass GNATBIND, GNATLINK and GNATMAKE variables down) 2007-01-23 16:37:09 +00:00
Makefile.in Makefile.in: Regenerate. 2007-02-09 16:35:29 +00:00
Makefile.tpl Makefile.tpl (build_alias, [...]): Use noncanonical equivalents. 2007-02-09 15:14:37 +00:00
missing COPYING, [...]: Sync from upstream sources. 2005-07-14 01:08:13 +00:00
mkdep
mkinstalldirs COPYING, [...]: Sync from upstream sources. 2005-07-14 01:08:13 +00:00
move-if-change Import from Autoconf sources: 2005-11-21 13:21:37 +11:00
README
README.SCO
symlink-tree COPYING, [...]: Sync from upstream sources. 2005-07-14 01:08:13 +00:00
ylwrap COPYING, [...]: Sync from upstream sources. 2005-07-14 01:08:13 +00:00

README 

This directory contains the GNU Compiler Collection (GCC).

The GNU Compiler Collection is free software.  See the file 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.html for how to report bugs usefully.