Retire llvm::alignOf in favor of C++11 alignof.

No functionality change intended.

llvm-svn: 284733
diff --git a/llvm/lib/ProfileData/InstrProfReader.cpp b/llvm/lib/ProfileData/InstrProfReader.cpp
index ed927a9..ad407f0 100644
--- a/llvm/lib/ProfileData/InstrProfReader.cpp
+++ b/llvm/lib/ProfileData/InstrProfReader.cpp
@@ -289,7 +289,7 @@
   if (CurrentPos + sizeof(RawInstrProf::Header) > End)
     return make_error<InstrProfError>(instrprof_error::malformed);
   // The writer ensures each profile is padded to start at an aligned address.
-  if (reinterpret_cast<size_t>(CurrentPos) % alignOf<uint64_t>())
+  if (reinterpret_cast<size_t>(CurrentPos) % alignof(uint64_t))
     return make_error<InstrProfError>(instrprof_error::malformed);
   // The magic should have the same byte order as in the previous header.
   uint64_t Magic = *reinterpret_cast<const uint64_t *>(CurrentPos);