Module: Do not create Implicit ImportDecl for module X if we

 are building an implemenation of module X.

This fixes a regression caused by r280409.
rdar://problem/29930553

llvm-svn: 291628

3 files changed, 12 insertions, 0 deletions

diff --git a/clang/test/Modules/Inputs/module-impl-with-link/foo.h b/clang/test/Modules/Inputs/module-impl-with-link/foo.h
new file mode 100644
index 00000000000..90fe1bcc585
--- /dev/null
+++ b/clang/test/Modules/Inputs/module-impl-with-link/foo.h
@@ -0,0 +1 @@
+//empty
diff --git a/clang/test/Modules/Inputs/module-impl-with-link/module.modulemap b/clang/test/Modules/Inputs/module-impl-with-link/module.modulemap
new file mode 100644
index 00000000000..b85f8b6fe80
--- /dev/null
+++ b/clang/test/Modules/Inputs/module-impl-with-link/module.modulemap
@@ -0,0 +1,4 @@
+module Clib {
+  header "foo.h"
+  link "Clib"
+}
diff --git a/clang/test/Modules/module-impl-with-link.c b/clang/test/Modules/module-impl-with-link.c
new file mode 100644
index 00000000000..5e5ca83aafd
--- /dev/null
+++ b/clang/test/Modules/module-impl-with-link.c
@@ -0,0 +1,7 @@
+// RUN: rm -rf %t
+// RUN: %clang_cc1 -fmodules-cache-path=%t -fmodules -fimplicit-module-maps -fmodule-name=Clib %s -I %S/Inputs/module-impl-with-link -emit-llvm -o -
+#include "foo.h"
+// CHECK: !{{[0-9]+}} = !{i32 6, !"Linker Options", ![[LINK_OPTIONS:[0-9]+]]}
+// Make sure we don't generate linker option for module Clib since this TU is
+// an implementation of Clib.
+// CHECK: ![[LINK_OPTIONS]] = !{}