Known regression ? gcc-4.0.0-20050312 FPE's on C++

[John Vickers]

Hi.

I'm just asking if this is a known bug.  If not I'll prepare a bug report,
with bzipped preprocessed source.


I'm seeing this:

hpm05fuvec0.cpp:5538: internal compiler error: Floating point exception
Please submit a full bug report,

quite often when compiling large chunks of machine-generated C++.
gcc-3.4.3 works fine on the same testcases.


The compiler is:

$ gcc -v
Using built-in specs.
Target: i686-pc-linux-gnu
Configured with: ../../sources/gcc-4.0-20050312/configure --enable-languages=c,c++ --enable-__cxa_atexit --disable-checking --disable-nls --prefix=/usr/local/gcc/gcc-4.0-20050312
Thread model: posix
gcc version 4.0.0 20050312 (prerelease)


The compiler was bootstrapped with gcc-3.4.3

I can have another go without the "--disable-checking" if that's likely to help.
Anything else you'd like in the bug report ?


gcc-4 is a lot faster at compiling templatey C++ than 3.4.3, but the compiled code performance
is sometimes better, sometimes worse.  It's a bit hard to tell, since our big testcases
currently ICE with FPE's on gcc-4.0.

Regards,

John.