[CodeGen] remove stale comment; NFC

The libm functions with LLVM intrinsic twins were moved above this blob with:
https://reviews.llvm.org/rL319593

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@319618 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/CGBuiltin.cpp b/lib/CodeGen/CGBuiltin.cpp
index 76b6db135138c36023b258237805514dde670f1e..962f5d8a517a89cb066aee9091bf09a69745e6bc 100644 (file)
--- a/lib/CodeGen/CGBuiltin.cpp
+++ b/lib/CodeGen/CGBuiltin.cpp
@@ -1028,7 +1028,7 @@ RValue CodeGenFunction::EmitBuiltinExpr(const FunctionDecl *FD,
   }
 
   switch (BuiltinID) {
-  default: break;  // Handle intrinsics and libm functions below.
+  default: break;
   case Builtin::BI__builtin___CFStringMakeConstantString:
   case Builtin::BI__builtin___NSStringMakeConstantString:
     return RValue::get(ConstantEmitter(*this).emitAbstract(E, E->getType()));