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Old 01-03-2009, 06:32 PM
Hramrach
 
Default Bug#510616: gcc-4.3: gcc 4.3 is *very* slow on some files

Package: gcc-4.3
Version: 4.3.2-1.1
Severity: normal


Compiling the attached file takes ~10s with gcc 4.2 and ~ 6min with gcc
4.3

Most people would think the compiler has lockued up already.

gcc-4.3 -O2 -g -Wall -Wno-parentheses -o parse.o -c parse_.c


-- System Information:
Debian Release: lenny/sid
APT prefers testing
APT policy: (990, 'testing'), (300, 'unstable'), (100, 'experimental')
Architecture: i386 (i686)

Kernel: Linux 2.6.27-rc5+acpitz-report (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 2.7-16 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 2.7-16 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
 
Old 01-03-2009, 11:17 PM
Arthur Loiret
 
Default Bug#510616: gcc-4.3: gcc 4.3 is *very* slow on some files

tags 510616 + unreproductible
thanks

On Sat, Jan 03, 2009 at 08:32:20PM +0100, Hramrach wrote:
> Compiling the attached file takes ~10s with gcc 4.2 and ~ 6min with gcc
> 4.3
>
> Most people would think the compiler has lockued up already.
>
> gcc-4.3 -O2 -g -Wall -Wno-parentheses -o parse.o -c parse_.c

Unable to reproduce on i386, amd64 and alpha with this gcc version. Can you
send the gcc-4.3 --version output and the following md5 checksums ?

$ md5sum /usr/bin/gcc-4.3 /usr/lib/gcc/*-linux-gnu/4.3*/cc1


Thanks.
 
Old 01-05-2009, 10:38 AM
Michal Suchanek
 
Default Bug#510616: gcc-4.3: gcc 4.3 is *very* slow on some files

Arthur Loiret wrote:

tags 510616 + unreproductible
thanks

On Sat, Jan 03, 2009 at 08:32:20PM +0100, Hramrach wrote:


Compiling the attached file takes ~10s with gcc 4.2 and ~ 6min with gcc
4.3

Most people would think the compiler has lockued up already.

gcc-4.3 -O2 -g -Wall -Wno-parentheses -o parse.o -c parse_.c



Unable to reproduce on i386, amd64 and alpha with this gcc version. Can you
send the gcc-4.3 --version output and the following md5 checksums ?

$ md5sum /usr/bin/gcc-4.3 /usr/lib/gcc/*-linux-gnu/4.3*/cc1


Thanks.


$ gcc-4.3 --version
gcc-4.3 (Debian 4.3.2-1.1) 4.3.2
Copyright (C) 2008 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

0308e7b8c023f1021702bfe033c392a4 /usr/bin/gcc-4.3
4a569e23c8e94888a7b041a2acc3851b /usr/lib/gcc/i486-linux-gnu/4.3.1/cc1
4a569e23c8e94888a7b041a2acc3851b /usr/lib/gcc/i486-linux-gnu/4.3.2/cc1
4a569e23c8e94888a7b041a2acc3851b /usr/lib/gcc/i486-linux-gnu/4.3/cc1


debsums does not find anything wrong with gcc.

Thanks

Michal



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