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Commit Graph

22 Commits

Author SHA1 Message Date
Pedro F. Giffuni
5bfc7db451 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
2014-01-05 00:43:28 +00:00
Pedro F. Giffuni
5b1674597f 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
2013-11-29 18:46:02 +00:00
Pedro F. Giffuni
c6e2105845 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
2012-05-18 19:02:39 +00:00
Dimitry Andric
0e1c5cba52 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@
2010-11-25 20:29:14 +00:00
Alexander Kabaev
6b834ef156 GCC 4.2.0 release. 2007-05-19 01:19:51 +00:00
Alexander Kabaev
d51085f37e Gcc 3.4.4 release. 2005-06-03 03:28:44 +00:00
Alexander Kabaev
9a63ad9273 Gcc 3.4.2 20040728. 2004-07-28 03:11:36 +00:00
Alexander Kabaev
ea875f6efe Gcc 3.3.3 20031106. 2003-11-07 02:43:04 +00:00
Alexander Kabaev
50ebf00d84 Gcc 3.3.1-release. 2003-08-22 02:56:07 +00:00
Alexander Kabaev
bd0df3aa27 Gcc 3.3.1-pre as of 2003-07-11. 2003-07-11 03:40:53 +00:00
David E. O'Brien
45fc31f8dd Gcc 3.2.1 release virgin vendor import. (19-Nov-2002) 2002-12-04 15:42:16 +00:00
Alexander Kabaev
423134a002 Gcc 3.2.1-prerelease from the FSF anoncvs repo gcc-3_2-branch on October 9th 2002 20:15 EST. 2002-10-10 04:40:18 +00:00
Alexander Kabaev
bb3c979bf5 Gcc 3.2.1-prerelease from the FSF anoncvs repo gcc-3_2-branch on 1-Sep-2002 00:00:01 EDT. 2002-09-01 20:38:57 +00:00
David E. O'Brien
909b401074 Gcc 3.1.0 pre-release from the FSF anoncvs repo on 9-May-2002 15:57:15 EDT. 2002-05-09 20:02:13 +00:00
David E. O'Brien
1952e2e1c1 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.
2002-02-01 18:16:02 +00:00
David E. O'Brien
66d7199d63 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;
}
2001-03-24 01:58:31 +00:00
David E. O'Brien
843b04fb90 Virgin import of the GCC 2.95.3 compilers 2001-03-19 19:46:16 +00:00
David E. O'Brien
c4ac962157 Enlist the FreeBSD-CURRENT users as testers of GCC 2.95.3 Release Candidate #3 2001-02-17 08:34:50 +00:00
David E. O'Brien
f2c57ef828 Virgin import of the GCC 2.95.1 compilers 1999-10-16 06:09:09 +00:00
David E. O'Brien
2a266d02ba Virgin import of gcc from EGCS 1.1.2 1999-08-26 09:30:50 +00:00
David E. O'Brien
3b82b5b7f7 Virgin import of GCC 2.7.2.3 1999-07-10 23:03:59 +00:00
Peter Wemm
a4cd5630b0 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.
1996-09-18 05:35:50 +00:00