1 files changed, 73 insertions, 0 deletions
diff --git a/test/Driver/config-file.c b/test/Driver/config-file.c
new file mode 100644
index 0000000000000..04127d404f67f
--- /dev/null
+++ b/test/Driver/config-file.c
@@ -0,0 +1,73 @@
+//--- Config file search directories
+//
+// RUN: %clang --config-system-dir=%S/Inputs/config --config-user-dir=%S/Inputs/config2 -o /dev/null -v 2>&1 | FileCheck %s -check-prefix CHECK-DIRS
+// CHECK-DIRS: System configuration file directory: {{.*}}/Inputs/config
+// CHECK-DIRS: User configuration file directory: {{.*}}/Inputs/config2
+
+
+//--- Config file (full path) in output of -###
+//
+// RUN: %clang --config %S/Inputs/config-1.cfg -S %s -### 2>&1 | FileCheck %s -check-prefix CHECK-HHH
+// CHECK-HHH: Configuration file: {{.*}}Inputs{{.}}config-1.cfg
+// CHECK-HHH: -Werror
+// CHECK-HHH: -std=c99
+
+
+//--- Config file (full path) in output of -v
+//
+// RUN: %clang --config %S/Inputs/config-1.cfg -S %s -o /dev/null -v 2>&1 | FileCheck %s -check-prefix CHECK-V
+// CHECK-V: Configuration file: {{.*}}Inputs{{.}}config-1.cfg
+// CHECK-V: -Werror
+// CHECK-V: -std=c99
+
+
+//--- Config file in output of -###
+//
+// RUN: %clang --config-system-dir=%S/Inputs --config-user-dir= --config config-1.cfg -S %s -### 2>&1 | FileCheck %s -check-prefix CHECK-HHH2
+// CHECK-HHH2: Configuration file: {{.*}}Inputs{{.}}config-1.cfg
+// CHECK-HHH2: -Werror
+// CHECK-HHH2: -std=c99
+
+
+//--- Config file in output of -v
+//
+// RUN: %clang --config-system-dir=%S/Inputs --config-user-dir= --config config-1.cfg -S %s -o /dev/null -v 2>&1 | FileCheck %s -check-prefix CHECK-V2
+// CHECK-V2: Configuration file: {{.*}}Inputs{{.}}config-1.cfg
+// CHECK-V2: -Werror
+// CHECK-V2: -std=c99
+
+
+//--- Nested config files
+//
+// RUN: %clang --config-system-dir=%S/Inputs --config-user-dir= --config config-2.cfg -S %s -### 2>&1 | FileCheck %s -check-prefix CHECK-NESTED
+// CHECK-NESTED: Configuration file: {{.*}}Inputs{{.}}config-2.cfg
+// CHECK-NESTED: -Wundefined-func-template
+
+// RUN: %clang --config-system-dir=%S/Inputs --config-user-dir= --config config-2.cfg -S %s -### 2>&1 | FileCheck %s -check-prefix CHECK-NESTED2
+// CHECK-NESTED2: Configuration file: {{.*}}Inputs{{.}}config-2.cfg
+// CHECK-NESTED2: -Wundefined-func-template
+
+
+// RUN: %clang --config %S/Inputs/config-2a.cfg -S %s -### 2>&1 | FileCheck %s -check-prefix CHECK-NESTEDa
+// CHECK-NESTEDa: Configuration file: {{.*}}Inputs{{.}}config-2a.cfg
+// CHECK-NESTEDa: -isysroot
+// CHECK-NESTEDa-SAME: /opt/data
+
+// RUN: %clang --config-system-dir=%S/Inputs --config-user-dir= --config config-2a.cfg -S %s -### 2>&1 | FileCheck %s -check-prefix CHECK-NESTED2a
+// CHECK-NESTED2a: Configuration file: {{.*}}Inputs{{.}}config-2a.cfg
+// CHECK-NESTED2a: -isysroot
+// CHECK-NESTED2a-SAME: /opt/data
+
+
+//--- Unused options in config file do not produce warnings
+//
+// RUN: %clang --config %S/Inputs/config-4.cfg -S %s -o /dev/null -v 2>&1 | FileCheck %s -check-prefix CHECK-UNUSED
+// CHECK-UNUSED-NOT: argument unused during compilation:
+// CHECK-UNUSED-NOT: 'linker' input unused
+
+
+//--- User directory is searched first.
+//
+// RUN: %clang --config-system-dir=%S/Inputs/config --config-user-dir=%S/Inputs/config2 --config config-4 -S %s -o /dev/null -v 2>&1 | FileCheck %s -check-prefix CHECK-PRECEDENCE
+// CHECK-PRECEDENCE: Configuration file: {{.*}}Inputs{{.}}config2{{.}}config-4.cfg
+// CHECK-PRECEDENCE: -Wall