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Re: Speedup CSE by 5%
> I understand all that. However, if you look at the first call to
> validate_change (inside an ASM_OPERANDS case) you'll see a case where
> I think we can modify x without copying it first.
Ah huh. Can we somehow fix that place? One-percent improvement in
compile time is hard to let go. Plus, a little bit of overhead may be
tolerable for ASM_OPERANDS, assuming ASM_OPERANDS make up a small
portion of most source code.