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Re: The speed of the compiler, was: Re: Combine four insns
Diego Novillo wrote:
On 10-08-09 13:07 , Toon Moene wrote:
Is this also true for C++ ? In that case it might be useful to curb
Front End optimizations when -O0 is given ...
Not really, the amount of optimization is quite minimal to non-existent.
Much of the slowness is due to the inherent nature of C++ parsing. There
is some performance to be gained by tweaking the various data structures
and algorithms, but no order-of-magnitude opportunities seem to exist.
Perhaps Chris can add something to this discussion - after all, LLVM is
written mostly in C++, no ?
Certainly, that must have provided him (and his team) with boatloads of
performance data ....
Toon Moene - e-mail: firstname.lastname@example.org - phone: +31 346 214290
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