3 files changed, 15 insertions, 0 deletions
diff --git a/clang/test/Modules/Inputs/crash.h b/clang/test/Modules/Inputs/crash.h
new file mode 100644
index 00000000000..bc878fbcb02
--- /dev/null
+++ b/clang/test/Modules/Inputs/crash.h
@@ -0,0 +1 @@
+#pragma clang __debug crash
diff --git a/clang/test/Modules/Inputs/module.map b/clang/test/Modules/Inputs/module.map
index 8ec3e21121b..fe762f54a11 100644
--- a/clang/test/Modules/Inputs/module.map
+++ b/clang/test/Modules/Inputs/module.map
@@ -324,3 +324,6 @@ module recursive1 {
 module recursive2 {
   header "recursive2.h"
 }
+module crash {
+  header "crash.h"
+}
diff --git a/clang/test/Modules/signal.m b/clang/test/Modules/signal.m
new file mode 100644
index 00000000000..30059e93511
--- /dev/null
+++ b/clang/test/Modules/signal.m
@@ -0,0 +1,11 @@
+// REQUIRES: shell
+// RUN: rm -rf %t
+
+// Crash building module.
+// RUN: not --crash %clang_cc1 -fmodules -fimplicit-module-maps -fmodules-cache-path=%t -I%S/Inputs %s
+
+// The dead symlink is still around, but the underlying lock file is gone.
+// RUN: find %t -name "crash-*.pcm.lock" | count 1
+// RUN: find %t -name "crash-*.pcm.lock-*" | count 0
+
+@import crash;