Allow implicit conversion from function pointer to void* in Microsoft mode.

Necessary to parse MFC code.

llvm-svn: 131076

1 files changed, 9 insertions, 0 deletions

diff --git a/clang/lib/Sema/SemaOverload.cpp b/clang/lib/Sema/SemaOverload.cpp
index 602ecd66027..e8dd56f66fb 100644
--- a/clang/lib/Sema/SemaOverload.cpp
+++ b/clang/lib/Sema/SemaOverload.cpp
@@ -1628,6 +1628,15 @@ bool Sema::IsPointerConversion(Expr *From, QualType FromType, QualType ToType,
     return true;
   }
 
+  // MSVC allows implicit function to void* type conversion.
+  if (getLangOptions().Microsoft && FromPointeeType->isFunctionType() &&
+      ToPointeeType->isVoidType()) {
+    ConvertedType = BuildSimilarlyQualifiedPointerType(FromTypePtr,
+                                                       ToPointeeType,
+                                                       ToType, Context);
+    return true;
+  }
+
   // When we're overloading in C, we allow a special kind of pointer
   // conversion for compatible-but-not-identical pointee types.
   if (!getLangOptions().CPlusPlus &&