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