[PATCH] D11933: Extending debug ranges

[Adrian Prantl via llvm-commits]

aprantl added a comment.

I just commented in the PR:

> The debug range extension (http://reviews.llvm.org/D11933) is partially redundant with what LiveDebugVariables is trying to do here. The range extension pass is a full data flow analysis — this means we could simplify LiveDebugVariables and have it no longer attempt to extend the liveness of a DEBUG_VALUE beyond the end of a basic block.


It's possible that simplifying LiveDebugVariables could make up some of the runtime that is spent in the debug range extension pass.


http://reviews.llvm.org/D11933