Your message dated Sun, 30 May 2010 21:38:33 +0200
with message-id <4c02beb9.7030...@debian.org>
and subject line Re: Bug#558245: gcc-4.3: Broken 3DNow! built-ins with
optimization turned on
has caused the Debian Bug report #558245,
regarding gcc-4.3: Broken 3DNow! built-ins with optimization turned on
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
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--
558245: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=558245
Debian Bug Tracking System
Contact ow...@bugs.debian.org with problems
--- Begin Message ---
Package: gcc-4.3
Version: 4.3.2-1.1
Severity: important
With the attached source file, the code generated is incorrect for the final
_m_pfsub. The compiler generates things like PFSUBR %MM0,%MM0.
The command line showing the problem is:
gcc -march=athlon -fverbose-asm -S -O3 main.c
Removing '-O3' from the command line generates correct, but not optimized,
code.
The problem is visible in both GCC 4.3.2 (Debian Lenny) and GCC 4.3.4-6
(Debian Squeeze).
*** main.c
#include <mm3dnow.h>
void Butterfly_3(__m64 *D,__m64 SC,unsigned int IStep,unsigned int Off)
{ __m64 T,T1,T2;
T=_m_pfmul(D[Off+1],SC);
T1=D[Off+0];D[Off+0]=_m_pfadd(T1,T);D[Off+1]=_m_pfsub(T1,T);
}
-- System Information:
Debian Release: 5.0.3
APT prefers stable
APT policy: (500, 'stable')
Architecture: i386 (i686)
Kernel: Linux 2.6.26-2-686 (SMP w/1 CPU core)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
Versions of packages gcc-4.3 depends on:
ii binutils 2.18.1~cvs20080103-7 The GNU assembler, linker and bina
ii cpp-4.3 4.3.2-1.1 The GNU C preprocessor
ii gcc-4.3-base 4.3.2-1.1 The GNU Compiler Collection (base
ii libc6 2.7-18 GNU C Library: Shared libraries
ii libgcc1 1:4.3.2-1.1 GCC support library
ii libgomp1 4.3.2-1.1 GCC OpenMP (GOMP) support library
Versions of packages gcc-4.3 recommends:
ii libc6-dev 2.7-18 GNU C Library: Development Librari
Versions of packages gcc-4.3 suggests:
pn gcc-4.3-doc <none> (no description available)
pn gcc-4.3-locales <none> (no description available)
pn gcc-4.3-multilib <none> (no description available)
pn libgcc1-dbg <none> (no description available)
pn libgomp1-dbg <none> (no description available)
pn libmudflap0-4.3-dev <none> (no description available)
pn libmudflap0-dbg <none> (no description available)
-- no debconf information
--- End Message ---
--- Begin Message ---
Version: 4.3.5-1
On 27.11.2009 11:34, Catalin Ionescu wrote:
Package: gcc-4.3
Version: 4.3.2-1.1
Severity: important
With the attached source file, the code generated is incorrect for the final
_m_pfsub. The compiler generates things like PFSUBR %MM0,%MM0.
not seen anymore with 4.3.5-1 and 4.4.4
--- End Message ---
