Temporarily revert r137925 to appease buildbots. Original commit message:

Teach ModuleManager::addModule() to check whether a particular module
has already been loaded before allocating a new Module structure. If
the module has already been loaded (uniquing based on file name), then
just return the existing module rather than trying to load it again.

This allows us to load a DAG of modules. Introduce a simple test case
that forms a diamond-shaped module graph, and illustrates that a
source file importing the bottom of the diamond can see declarations
in all four of the modules that make up the diamond.

llvm-svn: 137971

1 files changed, 0 insertions, 14 deletions

diff --git a/clang/test/Modules/diamond.c b/clang/test/Modules/diamond.c
deleted file mode 100644
index fdec7b3aab3..00000000000
--- a/clang/test/Modules/diamond.c
+++ /dev/null
@@ -1,14 +0,0 @@
-// in diamond-bottom.h: expected-note{{passing argument to parameter 'x' here}}
-void test_diamond(int i, float f, double d, char c) {
-  top(&i);
-  left(&f);
-  right(&d);
-  bottom(&c);
-  bottom(&d); // expected-warning{{incompatible pointer types passing 'double *' to parameter of type 'char *'}}
-}
-
-// RUN: %clang_cc1 -emit-pch -o %t_top.h.pch %S/Inputs/diamond_top.h
-// RUN: %clang_cc1 -import-module %t_top.h.pch -emit-pch -o %t_left.h.pch %S/Inputs/diamond_left.h
-// RUN: %clang_cc1 -import-module %t_top.h.pch -emit-pch -o %t_right.h.pch %S/Inputs/diamond_right.h
-// RUN: %clang_cc1 -import-module %t_left.h.pch -import-module %t_right.h.pch -emit-pch -o %t_bottom.h.pch %S/Inputs/diamond_bottom.h
-// RUN: %clang_cc1 -import-module %t_bottom.h.pch -verify %s