1 files changed, 56 insertions, 0 deletions
diff --git a/test/Modules/explicit-build-missing-files.cpp b/test/Modules/explicit-build-missing-files.cpp
new file mode 100644
index 0000000..1ee65d9
--- /dev/null
+++ b/test/Modules/explicit-build-missing-files.cpp
@@ -0,0 +1,56 @@
+// RUN: rm -rf %t
+// RUN: mkdir %t
+// RUN: echo 'extern int a; template<typename T> int a2 = T::error;' > %t/a.h
+// RUN: echo 'extern int b;' > %t/b.h
+// RUN: echo 'extern int c = 0;' > %t/c.h
+// RUN: echo 'module a { header "a.h" header "b.h" header "c.h" }' > %t/modulemap
+// RUN: echo 'module other {}' > %t/other.modulemap
+
+// We lazily check that the files referenced by an explicitly-specified .pcm
+// file exist. Test this by removing files and ensuring that the compilation
+// still succeeds.
+//
+// RUN: %clang_cc1 -fmodules -I %t -emit-module -fmodule-name=a -x c++ %t/modulemap -o %t/a.pcm \
+// RUN:            -fmodule-map-file=%t/other.modulemap \
+// RUN:            -fmodules-embed-file=%t/modulemap -fmodules-embed-file=%t/other.modulemap
+// RUN: %clang_cc1 -fmodules -I %t -emit-module -fmodule-name=a -x c++ %t/modulemap -o %t/b.pcm \
+// RUN:            -fmodule-map-file=%t/other.modulemap \
+// RUN:            -fmodules-embed-all-files
+// RUN: %clang_cc1 -fmodules -I %t -fmodule-file=%t/a.pcm %s
+// RUN: not %clang_cc1 -fmodules -I %t -fmodule-file=%t/a.pcm %s -DERRORS 2>&1 | FileCheck %s
+// RUN: rm %t/modulemap
+// RUN: %clang_cc1 -fmodules -I %t -fmodule-file=%t/a.pcm %s
+// RUN: not %clang_cc1 -fmodules -I %t -fmodule-file=%t/a.pcm %s -DERRORS 2>&1 | FileCheck %s
+// RUN: rm %t/other.modulemap
+// RUN: %clang_cc1 -fmodules -I %t -fmodule-file=%t/a.pcm %s
+// RUN: not %clang_cc1 -fmodules -I %t -fmodule-file=%t/a.pcm %s -DERRORS 2>&1 | FileCheck %s
+// RUN: sleep 1
+// RUN: touch %t/a.h
+// RUN: %clang_cc1 -fmodules -I %t -fmodule-file=%t/a.pcm %s
+// RUN: not %clang_cc1 -fmodules -I %t -fmodule-file=%t/a.pcm %s -DERRORS 2>&1 | FileCheck %s
+// RUN: rm %t/b.h
+// RUN: %clang_cc1 -fmodules -I %t -fmodule-file=%t/a.pcm %s
+// RUN: %clang_cc1 -fmodules -I %t -fmodule-file=%t/b.pcm %s
+// RUN: not %clang_cc1 -fmodules -I %t -fmodule-file=%t/a.pcm %s -DERRORS 2>&1 | FileCheck %s --check-prefix=MISSING-B
+// RUN: rm %t/a.h
+// RUN: %clang_cc1 -fmodules -I %t -fmodule-file=%t/a.pcm %s -verify
+// RUN: %clang_cc1 -fmodules -I %t -fmodule-file=%t/b.pcm %s -verify
+
+// Oftentimes on Windows there are open handles, and deletion will fail.
+// REQUIRES: can-remove-opened-file
+
+#include "a.h" // expected-error {{file not found}}
+int x = b;
+
+#ifdef ERRORS
+int y = a2<int>;
+// CHECK: In module 'a':
+// CHECK-NEXT: a.h:1:45: error:
+
+// MISSING-B: could not find file '{{.*}}b.h'
+// MISSING-B-NOT: please delete the module cache
+#endif
+
+// RUN: not %clang_cc1 -fmodules -I %t -emit-module -fmodule-name=a -x c++ /dev/null -o %t/c.pcm \
+// RUN:                -fmodules-embed-file=%t/does-not-exist 2>&1 | FileCheck %s --check-prefix=MISSING-EMBED
+// MISSING-EMBED: fatal error: file '{{.*}}does-not-exist' specified by '-fmodules-embed-file=' not found