Copy head@r302406 to stable/11 as part of the 11.0-RELEASE cycle.
Prune svn:mergeinfo from the new branch, as nothing has been merged
here.

Additional commits post-branch will follow.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

gcc: Add support for Apple's Block extension

Block objects [1] are a C-level syntactic and runtime feature. They
are similar to standard C functions, but in addition to executable
code they may also contain variable bindings to automatic (stack)
or managed (heap) memory. A block can therefore maintain a set of
state (data) that it can use to impact behavior when executed.

This port is based on Apple's GCC 5646 with some bugfixes from
Apple GCC 5666.3. It has some small differences with the support
in clang, which remains the recommended compiler.

Perhaps the most notable difference is that in GCC that __block
is not actually a keyword, but a macro. There will be workaround
for this issue in a near future. Other issues can be consulted in
the clang documentation [2]

For better compatiblity with Apple's GCC and llvm-gcc some related
fixes and features from Apple have been included. Support for the
non-standard nested functions in GCC is now off by default.

No effort was made to update the ObjC support since FreeBSD doesn't
carry ObjC in the base system, but some of the code crept in and
was more difficult to remove than to adjust.

Reference:
[1]
https://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/Blocks/Articles/00_Introduction.html
[2]
http://clang.llvm.org/compatibility.html#block-variable-initialization

Obtained from: Apple GCC 4.2
MFC after: 3 weeks

gcc: upstream alignment cleanups.

This solves GCC/32617 and contributes to reduce differences with
Apple's gcc42.

Complete some references in the ChangeLog while here.

Obtained from: gcc 4.3 (rev. 126529, 126588; GPLv2)
MFC after: 3 weeks

Bring in a subset of gcc fixes that were back ported to
the GCC 4.1 branch and are available under GPLv2.

2007-11-07 Eric Botcazou <ebotcazou@libertysurf.fr>

PR rtl-optimization/33822
* rtl.h (REG_OFFSET): Fix comment.
* var-tracking.c (INT_MEM_OFFSET): New macro.
(var_mem_set): Use it.
(var_mem_delete_and_set): Likewise.
(var_mem_delete): Likewise.
(vt_get_decl_and_offset): Likewise.
(offset_valid_for_tracked_p): New predicate.
(count_uses): Do not track locations with invalid offsets.
(add_uses): Likewise.
(add_stores): Likewise.
http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=129972

2007-11-16 Richard Guenther <rguenther@suse.de>
PR middle-end/34030
* fold-const.c (fold_binary): Use correct types for folding
1 << X & Y to Y >> X & 1.
http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=130242

2008-01-14 Eric Botcazou <ebotcazou@adacore.com>

PR rtl-optimization/31944
* cse.c (remove_pseudo_from_table): New function.
(merge_equiv_classes): Use above function to remove pseudo-registers.
(invalidate): Likewise
http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=131524

2008-01-24 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>

Backport:
2007-11-07 Kenneth Zadeck <zadeck@naturalbridge.com>

PR middle-end/33826
* ipa-pure-const (static_execute): Added code to keep recursive
functions from being marked as pure or const.
* ipa-utils (searchc): Fixed comment.
http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=131807

2008-02-01 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>

Backport:
2007-08-02 Nathan Froyd <froydnj@codesourcery.com>

PR middle-end/25445
* varasm.c (default_binds_local_p_1): Consult flag_whole_program
if we are compiling with -fPIC.
http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=132061

2008-02-04 Richard Guenther <rguenther@suse.de>

PR middle-end/33631
* expr.c (count_type_elements): Give for unions instead of
guessing.
http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=132101

2008-02-14 Alan Modra <amodra@bigpond.net.au>

PR target/34393
* config/rs6000/rs6000.md (restore_stack_block): Force operands[1]
to a reg.
http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=132309

2008-03-25 Richard Guenther <rguenther@suse.de>

Backport from mainline:
2008-02-12 Richard Guenther <rguenther@suse.de>

PR middle-end/35163
* fold-const.c (fold_widened_comparison): Use get_unwidened in
value-preserving mode. Disallow final truncation.
http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=133509

2008-11-30 Eric Botcazou <ebotcazou@adacore.com>

PR target/38287
* config/sparc/sparc.md (divsi3 expander): Remove constraints.
(divsi3_sp32): Add new alternative with 'K' for operand #2.
(cmp_sdiv_cc_set): Factor common string.
(udivsi3_sp32): Add new alternative with 'K' for operand #2.
Add TARGET_V9 case.
(cmp_udiv_cc_set): Factor common string.
http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=142298

Reviewed by: mm
Approved by: jhb (mentor)
MFC after: 1 week

Apply backported fix for gcc PR 20218. This makes __attribute__
((visibility ("hidden"))) work properly, and fixes building devel/glib20
with newer binutils.

Silence from: current@

This commit was generated by cvs2svn to compensate for changes in r169689,
which included commits to RCS files with non-trunk default branches.

GCC 4.2.0 release.

Gcc 3.4.4 release.

Gcc 3.4.2 20040728.

Gcc 3.3.3 20031106.

Gcc 3.3.1-release.

Gcc 3.3.1-pre as of 2003-07-11.

Gcc 3.2.1 release virgin vendor import. (19-Nov-2002)

Gcc 3.2.1-prerelease from the FSF anoncvs repo gcc-3_2-branch on October 9th 2002 20:15 EST.

Gcc 3.2.1-prerelease from the FSF anoncvs repo gcc-3_2-branch on 1-Sep-2002 00:00:01 EDT.

Cause CVS to sync up checked out source bases with Gcc 3.1 bits after
the repo surgery to cut out the abortive Gcc 2.9[67] imports.

Gcc 3.1.0 pre-release from the FSF anoncvs repo on 9-May-2002 15:57:15 EDT.

Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0.
These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.

Import the setjump/longjump exception handling fixes from GCC 2.95.3.test3
that were removed from GCC 2.95.3.test4 and the subsequent release due
to problems on HP-UX. However, they work just fine on all the BSD's.

W/o these patches the following program segmentation faults if compiled
with -O2 (but not -Os or -O or -O0):

#include <stdio.h>

class A {
public:
A() { printf("c'tor A\n"); }
~A(){ printf("d'tor A\n"); }
};

class foo : public A {
public:
foo() { printf("C'tor foo\n"); throw 8; }
~foo() { printf("D'tor foo\n"); }
};

int main(){
try { foo fii; }
catch (int){ printf("catch ...\n"); }
return 0;
}

Virgin import of the GCC 2.95.3 compilers

Enlist the FreeBSD-CURRENT users as testers of GCC 2.95.3 Release Candidate #3

Virgin import of the GCC 2.95.1 compilers

Virgin import of gcc from EGCS 1.1.2

Virgin import of GCC 2.7.2.3

Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the
non-i386, non-unix, and generatable files have been trimmed, but can easily
be added in later if needed.

gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's
handy to have both available for reference for such little cost.

The freebsd-specific changes will then be committed, and once the dust has
settled, the bmakefiles will be committed to use this code.