[tests] Add a test for -iwithprefix.
- This just scratches the surface, We have pretty horrible test coverage in
this area it seems like, but this at least covers the change in r173410.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173464 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Preprocessor/iwithprefix.c b/test/Preprocessor/iwithprefix.c
new file mode 100644
index 0000000..6628ab5
--- /dev/null
+++ b/test/Preprocessor/iwithprefix.c
@@ -0,0 +1,16 @@
+// Check that -iwithprefix falls into the "after" search list.
+//
+// RUN: rm -rf %t.tmps
+// RUN: mkdir -p %t.tmps/first %t.tmps/second
+// RUN: %clang_cc1 \
+// RUN: -iprefix %t.tmps/ -iwithprefix second \
+// RUN: -isystem %t.tmps/first -v 2> %t.out
+// RUN: FileCheck < %t.out %s
+
+// CHECK: #include <...> search starts here:
+// CHECK: {{.*}}.tmps/first
+// CHECK: /usr/include
+// CHECK: {{.*}}.tmps/second
+// CHECK-NOT: {{.*}}.tmps
+
+
