Large Fortran program succesfully LTO'd.

[Toon Moene]

Honza,

At the Cauldron meeting last week I mentioned that I wasn't able to 
compile our "small" weather forecasting program with LTO.

In the mean time I have read some bug reports with "multiple prevailing 
..." errors, which made me try linking with the 'gold' linker - that worked.

So the only things building the software that I changed were adding 
-flto and -fuse-ld=gold.

Some statistics of the source code:

3902 files totaling 1081944 lines.

The result works flawlessly.

Over the weekend I will study the LTO diagnostics to see what decisions 
were made with respect to inlining and other optimizations.

Thanks !

-- 
Toon Moene - e-mail: toon@moene.org - phone: +31 346 214290
Saturnushof 14, 3738 XG  Maartensdijk, The Netherlands
At home: http://moene.org/~toon/; weather: http://moene.org/~hirlam/
Progress of GNU Fortran: http://gcc.gnu.org/wiki/GFortran#news