Re: clisp is not compilable with g++ -O2 (and gcc4 on sparc)

[Sam S. <sd...@gn...>]

Vladimir Tzankov wrote:
>   On Jan 11, 2009, at 9:13 PM, Richard Stallman wrote:
>>
>> Is this a bug in GCC, or is it a bug in CLISP?
> 
> With 32 bit x86/ppc versions I do not observe anything wrong.
> Sam has observed problems - probably with 64 bit x86. Sam?

these is no doubt that this is a GCC platform-specific bug.
this conclusion is based on the following facts:
1. gcc3 & gcc4 compile clisp on i386 and x86_64 fine.
2. gcc3.2 compiles clisp on sparc fine.
3. gcc3.3 and 4* does NOT compile clisp on sparc: random errors happen
by replacing object files compiled by gcc3.2 and 3.3 in the final linking, one 
can identify the C file which gcc3.3 fails to compile correctly. the file is 
huge, has many static functions, and thus resists splitting.
diffing assembly is no help: the diffs are HUGE.

>> If it is a bug in GCC, please file a GCC bug report so that it can get
>> fixed.
> 
> If I can reproduce it will try to isolate it and file a bug report.

the problem is that GCC maintainers want a small example which clearly displays 
the bug. producing that requires non-trivial knowledge of assembly which I do 
not possess.