[llvm-dev] Thoughts on speculatively creating IR and throwing it away if not needed

[Jonas Paulsson via llvm-dev]

 > Given that this might push the envelop of the pattern a bit, I’d like 
to check if there are any concerns with using this pattern more widely.

Is the idea here to generate instructions which are collectively cheaper 
than their individual costs (due to reuse/combinations)? Or is it a 
matter of not really knowing what instructions will be generated and no?

/Jonas