1 files changed, 25 insertions, 0 deletions
diff --git a/test/Preprocessor/sysroot-prefix.c b/test/Preprocessor/sysroot-prefix.c
new file mode 100644
index 0000000000000..08c72f53b44e9
--- /dev/null
+++ b/test/Preprocessor/sysroot-prefix.c
@@ -0,0 +1,25 @@
+// RUN: %clang_cc1 -v -isysroot /var/empty -I /var/empty/include -E %s -o /dev/null 2>&1 | FileCheck -check-prefix CHECK-ISYSROOT_NO_SYSROOT %s
+// RUN: %clang_cc1 -v -isysroot /var/empty -I =/var/empty/include -E %s -o /dev/null 2>&1 | FileCheck -check-prefix CHECK-ISYSROOT_SYSROOT_DEV_NULL %s
+// RUN: %clang_cc1 -v -I =/var/empty/include -E %s -o /dev/null 2>&1 | FileCheck -check-prefix CHECK-NO_ISYSROOT_SYSROOT_DEV_NULL %s
+// RUN: %clang_cc1 -v -isysroot /var/empty -I =null -E %s -o /dev/null 2>&1 | FileCheck -check-prefix CHECK-ISYSROOT_SYSROOT_NULL %s
+// RUN: %clang_cc1 -v -isysroot /var/empty -isysroot /var/empty/root -I =null -E %s -o /dev/null 2>&1 | FileCheck -check-prefix CHECK-ISYSROOT_ISYSROOT_SYSROOT_NULL %s
+// RUN: %clang_cc1 -v -isysroot /var/empty/root -isysroot /var/empty -I =null -E %s -o /dev/null 2>&1 | FileCheck -check-prefix CHECK-ISYSROOT_ISYSROOT_SWAPPED_SYSROOT_NULL %s
+
+// CHECK-ISYSROOT_NO_SYSROOT: ignoring nonexistent directory "/var/empty/include"
+// CHECK-ISYSROOT_NO_SYSROOT-NOT: ignoring nonexistent directory "/var/empty/var/empty/include"
+
+// CHECK-ISYSROOT_SYSROOT_DEV_NULL: ignoring nonexistent directory "/var/empty/var/empty/include"
+// CHECK-ISYSROOT_SYSROOT_DEV_NULL-NOT: ignoring nonexistent directory "/var/empty"
+
+// CHECK-NO_ISYSROOT_SYSROOT_DEV_NULL: ignoring nonexistent directory "=/var/empty/include"
+// CHECK-NO_ISYSROOT_SYSROOT_DEV_NULL-NOT: ignoring nonexistent directory "/var/empty/include"
+
+// CHECK-ISYSROOT_SYSROOT_NULL: ignoring nonexistent directory "/var/empty{{.}}null"
+// CHECK-ISYSROOT_SYSROOT_NULL-NOT: ignoring nonexistent directory "=null"
+
+// CHECK-ISYSROOT_ISYSROOT_SYSROOT_NULL: ignoring nonexistent directory "/var/empty/root{{.}}null"
+// CHECK-ISYSROOT_ISYSROOT_SYSROOT_NULL-NOT: ignoring nonexistent directory "=null"
+
+// CHECK-ISYSROOT_ISYSROOT_SWAPPED_SYSROOT_NULL: ignoring nonexistent directory "/var/empty{{.}}null"
+// CHECK-ISYSROOT_ISYSROOT_SWAPPED_SYSROOT_NULL-NOT: ignoring nonexistent directory "=null"
+