[LLVMdev] Lowering switch statements with PGO

[Chandler Carruth]

(this is a total side-note)

On Mon, Dec 15, 2014 at 10:18 PM, Bob Wilson <bob.wilson at apple.com> wrote:

> I don’t remember any static heuristics for switches.


We should probably bias slightly toward a single case for switches where
one dominates the value range space of the input, and that one doesn't have
some other heuristic (such as we provide for an unreachable-terminated
block) applied to it.
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