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Bug#613782: marked as done (gcc-4.4: Vectorizes some loops with -m32, but not on x86_64.)

Your message dated Sun, 05 Jul 2015 16:18:22 +0000
with message-id <E1ZBmcY-0006gk-9d@franck.debian.org>
and subject line Bug#707276: Removed package(s) from unstable
has caused the Debian Bug report #613782,
regarding gcc-4.4: Vectorizes some loops with -m32, but not on x86_64.
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
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misconfiguration somewhere. Please contact owner@bugs.debian.org

613782: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=613782
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message ---
Package: gcc-4.4
Version: 4.4.5-10
Severity: normal

For the following two functions,

void foo(const float * __restrict__ input, float * __restrict__ output)
    unsigned int pos;
    for (pos = 0; pos < 10100; pos++)
        output[pos] = input[pos] * 0.1;

void bar(const float * __restrict__ input, float * __restrict__ output)
    unsigned int pos;
    unsigned int i;
    for (pos = 0; pos <= 10000; pos += 100)
        for (i = 0; i < 100; i++)
            output[pos + i] = input[pos + i] * 0.1;

compiled with 

gcc -O3 -ftree-vectorizer-verbose=5 -msse2 -m32 -c main.c

vectorizes both foo and bar.  However, compiled without the -m32

gcc -O3 -ftree-vectorizer-verbose=5 -msse2 -c main.c

will only vectorize foo, and not bar.  They should both be vectorized on both platforms.

-- System Information:
Debian Release: wheezy/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'stable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.32-5-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_US.utf8, LC_CTYPE=en_US.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages gcc-4.4 depends on:
ii  binutils                      2.20.1-16  The GNU assembler, linker and bina
ii  cpp-4.4                       4.4.5-10   The GNU C preprocessor
ii  gcc-4.4-base                  4.4.5-10   The GNU Compiler Collection (base 
ii  libc6                         2.11.2-11  Embedded GNU C Library: Shared lib
ii  libgcc1                       1:4.4.5-10 GCC support library
ii  libgomp1                      4.4.5-10   GCC OpenMP (GOMP) support library

Versions of packages gcc-4.4 recommends:
ii  libc6-dev                     2.11.2-11  Embedded GNU C Library: Developmen

Versions of packages gcc-4.4 suggests:
pn  gcc-4.4-doc                   <none>     (no description available)
pn  gcc-4.4-locales               <none>     (no description available)
ii  gcc-4.4-multilib              4.4.5-10   The GNU C compiler (multilib files
pn  libcloog-ppl0                 <none>     (no description available)
pn  libgcc1-dbg                   <none>     (no description available)
pn  libgomp1-dbg                  <none>     (no description available)
pn  libmudflap0-4.4-dev           <none>     (no description available)
pn  libmudflap0-dbg               <none>     (no description available)
pn  libppl-c2                     <none>     (no description available)
pn  libppl7                       <none>     (no description available)

-- no debconf information

--- End Message ---
--- Begin Message ---
Version: 1:4.4.7-8+rm

Dear submitter,

as the package gcc-4.4 has just been removed from the Debian archive
unstable we hereby close the associated bug reports.  We are sorry
that we couldn't deal with your issue properly.

For details on the removal, please see https://bugs.debian.org/707276

The version of this package that was in Debian prior to this removal
can still be found using http://snapshot.debian.org/.

This message was generated automatically; if you believe that there is
a problem with it please contact the archive administrators by mailing

Debian distribution maintenance software
Luca Falavigna (the ftpmaster behind the curtain)

--- End Message ---

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