Add back the workaround since it lead to constructor conversion bugs :(

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@81917 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 22 insertions, 0 deletions

diff --git a/lib/Sema/SemaDeclCXX.cpp b/lib/Sema/SemaDeclCXX.cpp
index 87c4e70101..9e49778250 100644
--- a/lib/Sema/SemaDeclCXX.cpp
+++ b/lib/Sema/SemaDeclCXX.cpp
@@ -3243,6 +3243,12 @@ Sema::CompleteConstructorCall(CXXConstructorDecl *Constructor,
     Expr *Arg;
     if (i < NumArgs) {
       Arg = Args[i];
+      
+      // Pass the argument.
+      if (PerformCopyInitialization(Arg, ProtoArgType, "passing"))
+        return true;
+      
+      Args[i] = 0;
     } else {
       ParmVarDecl *Param = Constructor->getParamDecl(i);
       
diff --git a/test/CodeGenCXX/PR4983-constructor-conversion.cpp b/test/CodeGenCXX/PR4983-constructor-conversion.cpp
new file mode 100644
index 0000000000..31eae2e791
--- /dev/null
+++ b/test/CodeGenCXX/PR4983-constructor-conversion.cpp
@@ -0,0 +1,16 @@
+// RUN: clang-cc -emit-llvm-only %s
+
+struct A {
+  A(const char *s){}
+};
+
+struct B {
+  A a;
+  
+  B() : a("test") { }
+};
+
+void f() {
+    A a("test");
+}
+