Synthesize the default constructor which has not
been declared as needed.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@77641 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CodeGenFunction.cpp b/lib/CodeGen/CodeGenFunction.cpp
index bb53dcc..708100e 100644
--- a/lib/CodeGen/CodeGenFunction.cpp
+++ b/lib/CodeGen/CodeGenFunction.cpp
@@ -238,7 +238,17 @@
EmitDtorEpilogue(DD);
FinishFunction(S->getRBracLoc());
}
-
+ else
+ if (const CXXConstructorDecl *CD = dyn_cast<CXXConstructorDecl>(FD)) {
+ assert(
+ !cast<CXXRecordDecl>(CD->getDeclContext())->
+ hasUserDeclaredConstructor() &&
+ "bogus constructor is being synthesize");
+ StartFunction(FD, FD->getResultType(), Fn, Args, SourceLocation());
+ EmitCtorPrologue(CD);
+ FinishFunction();
+ }
+
// Destroy the 'this' declaration.
if (CXXThisDecl)
CXXThisDecl->Destroy(getContext());
diff --git a/lib/CodeGen/CodeGenModule.cpp b/lib/CodeGen/CodeGenModule.cpp
index 2cc0aab..bc3bd0b 100644
--- a/lib/CodeGen/CodeGenModule.cpp
+++ b/lib/CodeGen/CodeGenModule.cpp
@@ -640,6 +640,14 @@
// top-level declarations.
if (FD->isThisDeclarationADefinition() && MayDeferGeneration(FD))
DeferredDeclsToEmit.push_back(D);
+ // A called constructor which has no definition or declaration need be
+ // synthesized.
+ else if (const CXXConstructorDecl *CD = dyn_cast<CXXConstructorDecl>(FD)) {
+ const CXXRecordDecl *ClassDecl =
+ cast<CXXRecordDecl>(CD->getDeclContext());
+ if (!ClassDecl->hasUserDeclaredConstructor())
+ DeferredDeclsToEmit.push_back(D);
+ }
}
// This function doesn't have a complete type (for example, the return