Reverting r281609; it caused some build bots to break.

http://lab.llvm.org:8011/builders/llvm-clang-lld-x86_64-scei-ps4-ubuntu-fast/builds/20061/steps/test/logs/stdio

llvm-svn: 281612

1 files changed, 2 insertions, 11 deletions

diff --git a/clang/lib/Sema/SemaChecking.cpp b/clang/lib/Sema/SemaChecking.cpp
index f3f204f..81dc237 100644
--- a/clang/lib/Sema/SemaChecking.cpp
+++ b/clang/lib/Sema/SemaChecking.cpp
@@ -3240,17 +3240,8 @@ bool Sema::SemaBuiltinVAStartImpl(CallExpr *TheCall) {
     Diag(TheCall->getArg(1)->getLocStart(),
          diag::warn_second_arg_of_va_start_not_last_named_param);
   else if (IsCRegister || Type->isReferenceType() ||
-           Type->isSpecificBuiltinType(BuiltinType::Float) || [=] {
-             // Promotable integers are UB, but enumerations need a bit of
-             // extra checking to see what their promotable type actually is.
-             if (!Type->isPromotableIntegerType())
-               return false;
-             if (!Type->isEnumeralType())
-               return true;
-             const EnumDecl *ED = Type->getAs<EnumType>()->getDecl();
-             return !(ED &&
-                      Context.typesAreCompatible(ED->getPromotionType(), Type));
-           }()) {
+           Type->isPromotableIntegerType() ||
+           Type->isSpecificBuiltinType(BuiltinType::Float)) {
     unsigned Reason = 0;
     if (Type->isReferenceType())  Reason = 1;
     else if (IsCRegister)         Reason = 2;