[PATCH] getMangledTypeStr: add support for vectors

[Sanjoy Das]

Two nits inline.  Also, do we need a test case here?


================
Comment at: lib/IR/Function.cpp:451
@@ -450,3 +450,3 @@
 /// of named types is simply their name.  Manglings for unnamed types consist
 /// of a prefix ('p' for pointers, 'a' for arrays, 'f_' for functions)
 /// combined with the mangling of their component types.  A vararg function
----------------
Modify this comment to reflect that we handle vectors too.

================
Comment at: lib/IR/Function.cpp:466
@@ -465,1 +465,3 @@
       getMangledTypeStr(ATyp->getElementType());
+  } else if (VectorType* ATyp = dyn_cast<VectorType>(Ty)) {
+    Result += "v" + llvm::utostr(ATyp->getNumElements()) +
----------------
I think this will be better as `VectorType* VTyp = dyn_cast<VectorType>(Ty)`

http://reviews.llvm.org/D6915

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