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* [Bug preprocessor/19821] New: Preprocessor oom with nested vector operations @ 2005-02-08 17:35 pochini at shiny dot it 2005-02-08 18:51 ` [Bug preprocessor/19821] " pinskia at gcc dot gnu dot org ` (2 more replies) 0 siblings, 3 replies; 4+ messages in thread From: pochini at shiny dot it @ 2005-02-08 17:35 UTC (permalink / raw) To: gcc-bugs With 4 nested vec_add()'s gcc goes out of memory on my 512MB+1GBswap ppc box. With 3 adds it consumes about 150MB of memory and eventually succeeds. The preprocessor expands the y=... line into an exagerately huge expression. fftw3 fails to compile because of this. Tested on gcc 3.4.1 and 3.4.3, stable versions. They were configured with the following options: ./configure --prefix=/usr/ --enable-shared --enable-threads=posix --with-system- zlib --enable-__cxa_atexit --disable-checking --enable-altivec --with-cpu=7450 - -enable-languages=c,c++,objc #include <altivec.h> main() { vector float y, a, b; y = vec_add(a, vec_add(a, vec_add(a, vec_add(a, b)))); } # gcc -maltivec c.c -- Summary: Preprocessor oom with nested vector operations Product: gcc Version: 3.4.3 Status: UNCONFIRMED Severity: normal Priority: P2 Component: preprocessor AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: pochini at shiny dot it CC: gcc-bugs at gcc dot gnu dot org GCC build triplet: powerpc-unknown-linux-gnu GCC host triplet: powerpc-unknown-linux-gnu GCC target triplet: powerpc-unknown-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19821 ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug preprocessor/19821] Preprocessor oom with nested vector operations 2005-02-08 17:35 [Bug preprocessor/19821] New: Preprocessor oom with nested vector operations pochini at shiny dot it @ 2005-02-08 18:51 ` pinskia at gcc dot gnu dot org 2005-02-08 19:25 ` neil at daikokuya dot co dot uk 2005-02-09 3:21 ` pochini at shiny dot it 2 siblings, 0 replies; 4+ messages in thread From: pinskia at gcc dot gnu dot org @ 2005-02-08 18:51 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From pinskia at gcc dot gnu dot org 2005-02-08 13:27 ------- *** This bug has been marked as a duplicate of 19411 *** -- What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution| |DUPLICATE http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19821 ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug preprocessor/19821] Preprocessor oom with nested vector operations 2005-02-08 17:35 [Bug preprocessor/19821] New: Preprocessor oom with nested vector operations pochini at shiny dot it 2005-02-08 18:51 ` [Bug preprocessor/19821] " pinskia at gcc dot gnu dot org @ 2005-02-08 19:25 ` neil at daikokuya dot co dot uk 2005-02-09 3:21 ` pochini at shiny dot it 2 siblings, 0 replies; 4+ messages in thread From: neil at daikokuya dot co dot uk @ 2005-02-08 19:25 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From neil at daikokuya dot co dot uk 2005-02-08 14:02 ------- Subject: Re: New: Preprocessor oom with nested vector operations pochini at shiny dot it wrote:- > With 4 nested vec_add()'s gcc goes out of memory on my 512MB+1GBswap ppc box. > With 3 adds it consumes about 150MB of memory and eventually succeeds. The > preprocessor expands the y=... line into an exagerately huge expression. fftw3 > fails to compile because of this. But it is ridiculously big. If you think it's expanding it wrong then please elaborate. Otherwise don't use brain-dead macros 8-) -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19821 ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug preprocessor/19821] Preprocessor oom with nested vector operations 2005-02-08 17:35 [Bug preprocessor/19821] New: Preprocessor oom with nested vector operations pochini at shiny dot it 2005-02-08 18:51 ` [Bug preprocessor/19821] " pinskia at gcc dot gnu dot org 2005-02-08 19:25 ` neil at daikokuya dot co dot uk @ 2005-02-09 3:21 ` pochini at shiny dot it 2 siblings, 0 replies; 4+ messages in thread From: pochini at shiny dot it @ 2005-02-09 3:21 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From pochini at shiny dot it 2005-02-08 18:48 ------- Sorry for the noise, I didn't find #19411 while browsing the database. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19821 ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2005-02-08 18:49 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2005-02-08 17:35 [Bug preprocessor/19821] New: Preprocessor oom with nested vector operations pochini at shiny dot it 2005-02-08 18:51 ` [Bug preprocessor/19821] " pinskia at gcc dot gnu dot org 2005-02-08 19:25 ` neil at daikokuya dot co dot uk 2005-02-09 3:21 ` pochini at shiny dot it
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