[PATCH] D16751: Enable constexpr on Visual Studio 2015, add support for two equivalent attributes

[Reid Kleckner via llvm-commits]

rnk added inline comments.

================
Comment at: C:/LLVM/llvm/include/llvm/Support/Compiler.h:128
@@ -127,1 +127,3 @@
+#elif defined(_MSC_VER)
+#define LLVM_ATTRIBUTE_UNUSED_RESULT _Check_return_
 #else
----------------
This is provided by sal.h, right? You should probably add an include like this at the top:
  #ifdef _MSC_VER
  #include <sal.h>
  #endif


http://reviews.llvm.org/D16751