rnk accepted this revision.
rnk added a comment.
This revision is now accepted and ready to land.

Looks good with nits



================
Comment at: lib/Basic/Targets/AArch64.cpp:47-51
+  bool IsNetBSD = getTriple().getOS() == llvm::Triple::NetBSD;
+  bool IsOpenBSD = getTriple().getOS() == llvm::Triple::OpenBSD;
+  if (!getTriple().isOSDarwin() && !IsNetBSD && !IsOpenBSD)
+    WCharType = UnsignedInt;
+
----------------
I felt like this was clearer the way it was before, and we're already checking 
for the BSDs above.


================
Comment at: lib/Basic/Targets/AArch64.cpp:160-161
 
-  Builder.defineMacro("__ARM_SIZEOF_WCHAR_T", Opts.ShortWChar ? "2" : "4");
+  Builder.defineMacro("__ARM_SIZEOF_WCHAR_T",
+                      llvm::utostr(Opts.WCharSize ? Opts.WCharSize : 4));
 
----------------
This is correct because we compute macros after we apply the flag override, 
right?


Repository:
  rL LLVM

https://reviews.llvm.org/D37891



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