100x -O0 Compile Time Regression {3.2,3.3} -> {3.4,3.5}

[John Vickers]

Hello.

We've got some generated C++ which compiles in about 10s (on a P4 2800) at -O0 with gcc-3.2 or 3.3.2,
but takes about 1000s with 3.4.0 or 3.5.0.

-ftime-report says that the parser time has gone from 8.04s (gcc-3.3.2) to 958.19s (gcc-3.4.0)

Any suggestions as to where to start digging ?  I can supply preprocessed source to anyone interested.

The "-ftime-report -fmem-report" report for gcc-3.4.0 follows.

Regards,

John.
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