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[Bug preprocessor/19821] Preprocessor oom with nested vector operations
- From: "neil at daikokuya dot co dot uk" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 8 Feb 2005 14:03:03 -0000
- Subject: [Bug preprocessor/19821] Preprocessor oom with nested vector operations
- References: <20050208125810.19821.pochini@shiny.it>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- 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