[PATCH] D12781: PGO IR-level instrumentation infrastructure

[Rong Xu via llvm-commits]

xur added a subscriber: xur.
xur added a comment.

The reason I do not call SplitAllCriticalEdges is because I don't want to
split all critical edges. I only split these critical edges that need to be
instrumented. For critical edges, I prioritize them into MST to avoid the
split.

-Rong


http://reviews.llvm.org/D12781