[PATCH] Some minor update in PassManager.h

[Chandler Carruth]

Sorry for not getting to this for so long. I really like the technique and I think there are a few other places wher ewe could apply it.

Can you add some doxygen comments for the utility? At some point I think we may want to pull it out of the pass manager and make it widely available in LLVM.


================
Comment at: include/llvm/IR/PassManager.h:163
@@ +162,3 @@
+template <typename R, typename C, typename A1, typename A2>
+R runImpl(C &c, R (C::*f)(A1, A2), A1 a1, A2 a2) {
+  return (c.*f)(a1, a2);
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I really like this technique. I'd name it "invoke_with_optional_args" or something similar.

Also, you should use perfect forwarding here.

http://reviews.llvm.org/D3543

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