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Bug#558245: marked as done (gcc-4.3: Broken 3DNow! built-ins with optimization turned on)

Your message dated Sun, 30 May 2010 21:38:33 +0200
with message-id <4C02BEB9.7030205@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.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
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immediately.)


-- 
558245: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=558245
Debian Bug Tracking System
Contact owner@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 ---
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