[PATCH] Replace custom getNumPreds/etc with PredIteratorCache that does the same thing

[Quentin Colombet]

Hi Daniel,

Don’t know either if that makes sense, but LGTM ;).

Cheers,
-Quentin


================
Comment at: lib/Transforms/Utils/PromoteMemoryToRegister.cpp:269
@@ -267,3 +268,3 @@
 
-  /// Lazily compute the number of predecessors a block has.
-  DenseMap<const BasicBlock *, unsigned> BBNumPreds;
+  /// Cache of predecessor info
+  PredIteratorCache PredCache;
----------------
Period at the end of the comment ;).

http://reviews.llvm.org/D9167

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