Too many local registers...

Hi, I did some modifications to GHC in order to read hardware counters. Many programs are compiled successfully, but with one of them, I have a problem: Too many local registers allocated by gcc at .../ghc-6.6.1-modified/driver/mangler/ghc-asm line 1602, <INASM> line 304643. It's ghc 6.6.1 on an Itanium processor. Some suggestion? Thanks in advance for an answer. Cristian