Merge remote-tracking branch 'origin/swift-4.0-branch' into stable
* origin/swift-4.0-branch:
Avoid VarDecl emission attempt if no owning module avaiable
diff --git a/lib/Serialization/ASTReaderDecl.cpp b/lib/Serialization/ASTReaderDecl.cpp
index c691919..707a924 100644
--- a/lib/Serialization/ASTReaderDecl.cpp
+++ b/lib/Serialization/ASTReaderDecl.cpp
@@ -2513,8 +2513,8 @@
// An ImportDecl or VarDecl imported from a module will get emitted when
// we import the relevant module.
- if ((isa<ImportDecl>(D) || isa<VarDecl>(D)) && Ctx.DeclMustBeEmitted(D) &&
- D->getImportedOwningModule())
+ if ((isa<ImportDecl>(D) || isa<VarDecl>(D)) && D->getImportedOwningModule() &&
+ Ctx.DeclMustBeEmitted(D))
return false;
if (isa<FileScopeAsmDecl>(D) ||
diff --git a/test/PCH/empty-def-fwd-struct.h b/test/PCH/empty-def-fwd-struct.h
new file mode 100644
index 0000000..6a9372c
--- /dev/null
+++ b/test/PCH/empty-def-fwd-struct.h
@@ -0,0 +1,12 @@
+// RUN: %clang_cc1 -emit-pch -x c++-header %s -std=c++14 -o %t.pch
+// RUN: %clang_cc1 -emit-llvm -x c++ /dev/null -std=c++14 -include-pch %t.pch -o %t.o
+struct FVector;
+struct FVector {};
+struct FBox {
+ FVector Min;
+ FBox(int);
+};
+namespace {
+FBox InvalidBoundingBox(0);
+}
+
