1 files changed, 18 insertions, 0 deletions
diff --git a/clang/test/Modules/modules-cache-path-canonicalization-output.c b/clang/test/Modules/modules-cache-path-canonicalization-output.c
new file mode 100644
index 000000000000..ad71b69e5299
--- /dev/null
+++ b/clang/test/Modules/modules-cache-path-canonicalization-output.c
@@ -0,0 +1,18 @@
+// This checks that implicitly-built modules produce identical PCM
+// files regardless of the spelling of the same module cache path.
+
+// RUN: rm -rf %t
+// RUN: split-file %s %t
+
+// RUN: %clang_cc1 -fmodules -fimplicit-module-maps -fsyntax-only %t/tu.c \
+// RUN:   -fmodules-cache-path=%t/cache -fdisable-module-hash
+// RUN: mv %t/cache/M.pcm %t/M.pcm
+// RUN: %clang_cc1 -fmodules -fimplicit-module-maps -fsyntax-only %t/tu.c \
+// RUN:   -fmodules-cache-path=%t/./cache -fdisable-module-hash
+// RUN: diff %t/./cache/M.pcm %t/M.pcm
+
+//--- tu.c
+#include "M.h"
+//--- M.h
+//--- module.modulemap
+module M { header "M.h" }