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16 Commits

Author SHA1 Message Date
Pedro F. Giffuni
a6c34d9e26 Revert r236962 - Experimental amdfam10/barcelona support. 
The patches are unexpectedly causing gcc to fail while
building ports/graphics/ImageMagick even when the cpu
flags are not used.

Reported by:	Andreas Tobler
 2012-06-13 20:21:08 +00:00
Pedro F. Giffuni
b28518a59a Add experimental support for amdfam10/barcelona from the GCC 4.3 branch. 
Initial support for the AMD barcelona chipsets has been available in the
gcc43 branch under GPLv2 but was not included when the Core 2 support
was brought to the system gcc.

AMD and some linux distributions (OpenSUSE) did a backport of the amdfam10
support and made them available. Unfortunately this is still experimental
and while it can improve performance, enabling the CPUTYPE may break some
C++ ports (like clang).

Special care was taken to make sure that the patches predate the GPLv3
switch upstream.

Tested by:	Vladimir Kushnir
Reviewed by:	mm
Approved by:	jhb (mentor)
MFC after:	2 weeks
 2012-06-12 15:04:18 +00:00
Pedro F. Giffuni
a90710e961 Fix a typo in GCC affecting calculations with -ffast-math. 
The fix is similar to the one applied in GCC-4.3 in
GCCSVN-r117929 under the GPLv2.

Submitted by:	Andrey Simonenko
Reviewed by:	mm
Approved by:	jhb (mentor)
MFC after:	3 days
 2012-04-05 15:16:51 +00:00
Pedro F. Giffuni
4ee8547efb Clean an inconsistency with -ffinite-math-only. 
Backported from the gcc-4_3-branch, revision 118001,
under the GPLv2.

This issue was also fixed in Apple's gcc.

PR:		157025
Reviewed by:	mm
Approved by:	jhb (mentor)
MFC:		2 weeks
 2011-12-21 01:58:35 +00:00
Alexander Kabaev
9d6b9560a8 FreeBSD uses unchanged versions of this files. 2007-05-19 02:12:21 +00:00
Alexander Kabaev
f2d5255ddd Resolve conflicts after GCC 3.4.6 20060825 import. 2006-08-26 21:37:21 +00:00
Alexander Kabaev
31a119f3ed Stock files. 2005-06-03 03:50:42 +00:00
Alexander Kabaev
f246de45e2 Use stock GCC versions on these files. 2004-07-28 03:36:15 +00:00
Alexander Kabaev
3697be5590 No FreeBSD-local changes in these files. 2003-11-07 03:05:29 +00:00
Alexander Kabaev
b2bcf6753d FreeBSD uses stock versions of these GCC files. 2003-07-11 04:00:23 +00:00
Alexander Kabaev
d79e61dc75 Update HEAD with stock GCC 3.2.2 release files. 2003-02-10 05:57:03 +00:00
David E. O'Brien
21da7e2bd7 Use pure stock files. 2002-12-04 16:31:48 +00:00
Alexander Kabaev
6a10d74be1 Revert rev. 1.2. GCC 3.2 seems to have builtin_memset fixed. 
Approved by:	obrien
 2002-09-01 21:18:18 +00:00
David E. O'Brien
ec9ec8af6a Gcc 3.1 (-O) now generates broken inline code for memset in some cases. 
This broke newfs (newfs left some garbage in a bitmap).

The ASM for:

	#include <string.h>
	int x, foo[100];
	main()
	{
		memset(&foo[0], 0, x);
	}

is (at least if you have fixed function alignment):

	.file	"z.c"
	.text
	.p2align 2,,3
.globl main
	.type	main,@function
main:
	pushl	%ebp
	movl	%esp, %ebp
	pushl	%edi
	pushl	%eax
	movl	x, %ecx
	xorl	%eax, %eax
	shrl	$2, %ecx
	movl	$foo, %edi
	cld
	rep
	stosl
	andl	$-16, %esp
				<-- the lower bits of `len' should be loaded
				    near here
	testl	$2, %edi	<-- this seems to be meant to test the 2^1
				    bit in `len' (not alignment of the pointer
				    like it actually does).  %edi is the wrong
				    register for holding the bits, since it is
				    still needed for the pointer.
	je	.L2
	stosw
.L2:
	testl	$1, %edi	<-- similarly for the 2^0 bit.
	je	.L3
	stosb
.L3:
	movl	-4(%ebp), %edi
	leave
	ret
.Lfe1:
	.size	main,.Lfe1-main
	.comm	foo,400,32
	.comm	x,4,4
	.ident	"GCC: (GNU) 3.1 [FreeBSD] 20020509 (prerelease)"

This seems to only result in (len % 3) bytes not being cleared, since gcc
doesn't seem to use the builtin memset unless it knows that the pointer is
aligned.  If %edi could be misaligned, then too many bytes would be set.

Submitted by:	BDE
 2002-06-04 18:04:27 +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