Easwaran Raman <era...@google.com> writes:

> Some more background on this patch: Right now, while the execution
> counts of different case labels of a switch statement are obtained
> during profile collection, they are not propagated to RTL. Instead,
> counts are regenerated at the RTL level using static heuristics that
> tend to weigh branches equally which can cause poor optimization of
> hot code. This patch ensures that the counts collected during profile
> collection are correctly propagated allowing hot code to be better
> optimized by RTL optimizations.  Patch tested on x86_64.

I think your patch doesn't use the probably to weight the decision 
tree for non tablejump, right? I looked at this some time ago,
but the patch always had problems.


a...@linux.intel.com -- Speaking for myself only

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