Re: GCC does not cope with my code

mq@maq.org (Michael Quinlan)
28 May 2000 20:58:47 -0400

          From comp.compilers

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GCC does not cope with my code braung@ert.rwth-aachen.de (Gunnar Braun) (2000-05-24)
Re: GCC does not cope with my code mq@maq.org (2000-05-28)
Re: GCC does not cope with my code webid@asi.fr (Armel) (2000-05-28)
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Re: GCC does not cope with my code J.Scheerder@cwi.nl (2000-05-28)
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From: mq@maq.org (Michael Quinlan)
Newsgroups: comp.compilers
Date: 28 May 2000 20:58:47 -0400
Organization: Compilers Central
References: 00-05-091
Keywords: GCC, C

Gunnar Braun <braung@ert.rwth-aachen.de> wrote:


>I'm currently developing tools that generate C++ code. The generated
>code contains a bunch of macros which are expanded by the preprocessor.
>No problem up to here. Now I'd like to compile the resulting file with
>g++, but it takes ages until I get the object file. It gets worse, if I
>try to optimize the code generation via -O (of course it gets). The
>problem is that the (source) file (after the macro expansion) isn't
>really large, it's below 700 kB. If the file gets above 700 kB, the
>compiler crashes with the famous signal 11 internal compiler error.
>[...]
>---- sample code ----
> filename="sample.cpp"
>
>//
>// The file mainly looks like the following lines:
>//
>
>void ARM7_model::execute_program_block_005()
>{
> register long oldPC;
> switch(PC)
> {
> case 0x00001798: oldPC = PC; { ; { instruction_counter++; { ; { {
>[...]


Is it possible that you are generating a switch with too many cases for
the compiler to handle efficiently? A two-level switch might help?


--
No electrons were injured in the preparation of this message.
Michael Quinlan mq@maq.org http://www.maq.org





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