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-rw-r--r--clang/test/Driver/Inputs/config-1.cfg6
-rw-r--r--clang/test/Driver/Inputs/config-2.cfg2
-rw-r--r--clang/test/Driver/Inputs/config-2a.cfg2
-rw-r--r--clang/test/Driver/Inputs/config-3.cfg1
-rw-r--r--clang/test/Driver/Inputs/config-4.cfg2
-rw-r--r--clang/test/Driver/Inputs/config-5.cfg2
-rw-r--r--clang/test/Driver/Inputs/config-6.cfg1
-rw-r--r--clang/test/Driver/Inputs/config/config-4.cfg1
-rw-r--r--clang/test/Driver/Inputs/config/i386-qqq.cfg1
-rw-r--r--clang/test/Driver/Inputs/config/i386-qqq3.cfg1
-rw-r--r--clang/test/Driver/Inputs/config/x86_64-qqq.cfg1
-rw-r--r--clang/test/Driver/Inputs/config/x86_64-qqq2.cfg1
-rw-r--r--clang/test/Driver/Inputs/config/x86_64.cfg1
-rw-r--r--clang/test/Driver/Inputs/config2/config-4.cfg1
-rw-r--r--clang/test/Driver/Inputs/config2/i386.cfg1
-rw-r--r--clang/test/Driver/config-file-errs.c54
-rw-r--r--clang/test/Driver/config-file.c72
-rw-r--r--clang/test/Driver/config-file2.c51
-rw-r--r--clang/test/Driver/config-file3.c98
19 files changed, 299 insertions, 0 deletions
diff --git a/clang/test/Driver/Inputs/config-1.cfg b/clang/test/Driver/Inputs/config-1.cfg
new file mode 100644
index 00000000000..7d1326fe8bc
--- /dev/null
+++ b/clang/test/Driver/Inputs/config-1.cfg
@@ -0,0 +1,6 @@
+
+# Empty lines and line started with # are ignored
+-Werror
+
+ # Language
+ -std=c99
diff --git a/clang/test/Driver/Inputs/config-2.cfg b/clang/test/Driver/Inputs/config-2.cfg
new file mode 100644
index 00000000000..c803bd2a78f
--- /dev/null
+++ b/clang/test/Driver/Inputs/config-2.cfg
@@ -0,0 +1,2 @@
+# nested inclusion
+@config-3.cfg
diff --git a/clang/test/Driver/Inputs/config-2a.cfg b/clang/test/Driver/Inputs/config-2a.cfg
new file mode 100644
index 00000000000..ecdc5551568
--- /dev/null
+++ b/clang/test/Driver/Inputs/config-2a.cfg
@@ -0,0 +1,2 @@
+# nested inclusion
+@config/config-4.cfg
diff --git a/clang/test/Driver/Inputs/config-3.cfg b/clang/test/Driver/Inputs/config-3.cfg
new file mode 100644
index 00000000000..d5086a8e4e0
--- /dev/null
+++ b/clang/test/Driver/Inputs/config-3.cfg
@@ -0,0 +1 @@
+-Wundefined-func-template
diff --git a/clang/test/Driver/Inputs/config-4.cfg b/clang/test/Driver/Inputs/config-4.cfg
new file mode 100644
index 00000000000..d8a022ae759
--- /dev/null
+++ b/clang/test/Driver/Inputs/config-4.cfg
@@ -0,0 +1,2 @@
+-L/usr/local/lib
+-stdlib=libc++ \ No newline at end of file
diff --git a/clang/test/Driver/Inputs/config-5.cfg b/clang/test/Driver/Inputs/config-5.cfg
new file mode 100644
index 00000000000..09787ae6c49
--- /dev/null
+++ b/clang/test/Driver/Inputs/config-5.cfg
@@ -0,0 +1,2 @@
+--serialize-diagnostics diag.ser
+-target
diff --git a/clang/test/Driver/Inputs/config-6.cfg b/clang/test/Driver/Inputs/config-6.cfg
new file mode 100644
index 00000000000..24d93cf8eca
--- /dev/null
+++ b/clang/test/Driver/Inputs/config-6.cfg
@@ -0,0 +1 @@
+--config config-5
diff --git a/clang/test/Driver/Inputs/config/config-4.cfg b/clang/test/Driver/Inputs/config/config-4.cfg
new file mode 100644
index 00000000000..033e86a52a6
--- /dev/null
+++ b/clang/test/Driver/Inputs/config/config-4.cfg
@@ -0,0 +1 @@
+-isysroot /opt/data
diff --git a/clang/test/Driver/Inputs/config/i386-qqq.cfg b/clang/test/Driver/Inputs/config/i386-qqq.cfg
new file mode 100644
index 00000000000..41e1a9460b6
--- /dev/null
+++ b/clang/test/Driver/Inputs/config/i386-qqq.cfg
@@ -0,0 +1 @@
+-target i386
diff --git a/clang/test/Driver/Inputs/config/i386-qqq3.cfg b/clang/test/Driver/Inputs/config/i386-qqq3.cfg
new file mode 100644
index 00000000000..59928c10cba
--- /dev/null
+++ b/clang/test/Driver/Inputs/config/i386-qqq3.cfg
@@ -0,0 +1 @@
+-target i383
diff --git a/clang/test/Driver/Inputs/config/x86_64-qqq.cfg b/clang/test/Driver/Inputs/config/x86_64-qqq.cfg
new file mode 100644
index 00000000000..9d8565a336e
--- /dev/null
+++ b/clang/test/Driver/Inputs/config/x86_64-qqq.cfg
@@ -0,0 +1 @@
+-target x86_64
diff --git a/clang/test/Driver/Inputs/config/x86_64-qqq2.cfg b/clang/test/Driver/Inputs/config/x86_64-qqq2.cfg
new file mode 100644
index 00000000000..9d8565a336e
--- /dev/null
+++ b/clang/test/Driver/Inputs/config/x86_64-qqq2.cfg
@@ -0,0 +1 @@
+-target x86_64
diff --git a/clang/test/Driver/Inputs/config/x86_64.cfg b/clang/test/Driver/Inputs/config/x86_64.cfg
new file mode 100644
index 00000000000..9d8565a336e
--- /dev/null
+++ b/clang/test/Driver/Inputs/config/x86_64.cfg
@@ -0,0 +1 @@
+-target x86_64
diff --git a/clang/test/Driver/Inputs/config2/config-4.cfg b/clang/test/Driver/Inputs/config2/config-4.cfg
new file mode 100644
index 00000000000..bd866b6966d
--- /dev/null
+++ b/clang/test/Driver/Inputs/config2/config-4.cfg
@@ -0,0 +1 @@
+-Wall
diff --git a/clang/test/Driver/Inputs/config2/i386.cfg b/clang/test/Driver/Inputs/config2/i386.cfg
new file mode 100644
index 00000000000..41e1a9460b6
--- /dev/null
+++ b/clang/test/Driver/Inputs/config2/i386.cfg
@@ -0,0 +1 @@
+-target i386
diff --git a/clang/test/Driver/config-file-errs.c b/clang/test/Driver/config-file-errs.c
new file mode 100644
index 00000000000..8db2ea43929
--- /dev/null
+++ b/clang/test/Driver/config-file-errs.c
@@ -0,0 +1,54 @@
+//--- No more than one '--config' may be specified.
+//
+// RUN: not %clang --config 1.cfg --config 2.cfg 2>&1 | FileCheck %s -check-prefix CHECK-DUPLICATE
+// CHECK-DUPLICATE: no more than one option '--config' is allowed
+
+
+//--- '--config' must be followed by config file name.
+//
+// RUN: not %clang --config 2>&1 | FileCheck %s -check-prefix CHECK-MISSING-FILE
+// CHECK-MISSING-FILE: argument to '--config' is missing (expected 1 value)
+
+
+//--- '--config' must not be found in config files.
+//
+// RUN: not %clang --config %S/Inputs/config-6.cfg 2>&1 | FileCheck %s -check-prefix CHECK-NESTED
+// CHECK-NESTED: option '--config' is not allowed inside configuration file
+
+
+//--- Argument of '--config' must be existing file, if it is specified by path.
+//
+// RUN: not %clang --config somewhere/nonexistent-config-file 2>&1 | FileCheck %s -check-prefix CHECK-NONEXISTENT
+// CHECK-NONEXISTENT: configuration file '{{.*}}somewhere/nonexistent-config-file' does not exist
+
+
+//--- Argument of '--config' must exist somewhere in well-known directories, if it is specified by bare name.
+//
+// RUN: not %clang --config-system-dir= --config-user-dir= --config nonexistent-config-file 2>&1 | FileCheck %s -check-prefix CHECK-NOTFOUND0
+// CHECK-NOTFOUND0: configuration file 'nonexistent-config-file.cfg' cannot be found
+// CHECK-NOTFOUND0-NEXT: was searched for in the directory:
+// CHECK-NOTFOUND0-NOT: was searched for in the directory:
+//
+// RUN: not %clang --config-system-dir= --config-user-dir=%S/Inputs/config2 --config nonexistent-config-file 2>&1 | FileCheck %s -check-prefix CHECK-NOTFOUND1
+// CHECK-NOTFOUND1: configuration file 'nonexistent-config-file.cfg' cannot be found
+// CHECK-NOTFOUND1-NEXT: was searched for in the directory: {{.*}}/Inputs/config2
+// CHECK-NOTFOUND1-NEXT: was searched for in the directory:
+// CHECK-NOTFOUND1-NOT: was searched for in the directory:
+//
+// RUN: not %clang --config-system-dir=%S/Inputs/config --config-user-dir= --config nonexistent-config-file 2>&1 | FileCheck %s -check-prefix CHECK-NOTFOUND2
+// CHECK-NOTFOUND2: configuration file 'nonexistent-config-file.cfg' cannot be found
+// CHECK-NOTFOUND2-NEXT: was searched for in the directory: {{.*}}/Inputs/config
+// CHECK-NOTFOUND2-NEXT: was searched for in the directory:
+// CHECK-NOTFOUND2-NOT: was searched for in the directory:
+//
+// RUN: not %clang --config-system-dir=%S/Inputs/config --config-user-dir=%S/Inputs/config2 --config nonexistent-config-file 2>&1 | FileCheck %s -check-prefix CHECK-NOTFOUND3
+// CHECK-NOTFOUND3: configuration file 'nonexistent-config-file.cfg' cannot be found
+// CHECK-NOTFOUND3-NEXT: was searched for in the directory: {{.*}}/Inputs/config2
+// CHECK-NOTFOUND3-NEXT: was searched for in the directory: {{.*}}/Inputs/config
+// CHECK-NOTFOUND3-NEXT: was searched for in the directory:
+
+
+//--- Argument in config file cannot cross the file boundary
+//
+// RUN: not %clang --config %S/Inputs/config-5.cfg x86_64-unknown-linux-gnu -c %s 2>&1 | FileCheck %s -check-prefix CHECK-CROSS
+// CHECK-CROSS: error: argument to '-target' is missing
diff --git a/clang/test/Driver/config-file.c b/clang/test/Driver/config-file.c
new file mode 100644
index 00000000000..2d2d7a72b44
--- /dev/null
+++ b/clang/test/Driver/config-file.c
@@ -0,0 +1,72 @@
+//--- Config file search directories
+//
+// RUN: %clang --config-system-dir=%S/Inputs/config --config-user-dir=%S/Inputs/config2 -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 -c %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 -c %s -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 -c %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 -c %s -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 -c %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 -c %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 -c %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 -c %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 -c %s -v 2>&1 | FileCheck %s -check-prefix CHECK-UNUSED
+// CHECK-UNUSED-NOT: argument unused during compilation:
+
+
+//--- User directory is searched first.
+//
+// RUN: %clang --config-system-dir=%S/Inputs/config --config-user-dir=%S/Inputs/config2 --config config-4 -c %s -v 2>&1 | FileCheck %s -check-prefix CHECK-PRECEDENCE
+// CHECK-PRECEDENCE: Configuration file: {{.*}}Inputs{{.}}config2{{.}}config-4.cfg
+// CHECK-PRECEDENCE: -Wall
diff --git a/clang/test/Driver/config-file2.c b/clang/test/Driver/config-file2.c
new file mode 100644
index 00000000000..ff19a93697e
--- /dev/null
+++ b/clang/test/Driver/config-file2.c
@@ -0,0 +1,51 @@
+// REQUIRES: x86-registered-target
+
+//--- Invocation `clang --config x86_64-qqq -m32` loads `i386-qqq.cfg` if the latter exists.
+//
+// RUN: %clang --config-system-dir=%S/Inputs/config --config-user-dir= --config x86_64-qqq -m32 -c %s -### 2>&1 | FileCheck %s -check-prefix CHECK-RELOAD
+// CHECK-RELOAD: Target: i386
+// CHECK-RELOAD: Configuration file: {{.*}}Inputs{{.}}config{{.}}i386-qqq.cfg
+
+
+//--- Invocation `clang --config x86_64-qqq2 -m32` loads `i386.cfg` if the latter exists in another search directory.
+//
+// RUN: %clang --config-system-dir=%S/Inputs/config --config-user-dir=%S/Inputs/config2 --config x86_64-qqq2 -m32 -c %s -### 2>&1 | FileCheck %s -check-prefix CHECK-RELOAD1
+// CHECK-RELOAD1: Target: i386
+// CHECK-RELOAD1: Configuration file: {{.*}}Inputs{{.}}config2{{.}}i386.cfg
+
+
+//--- Invocation `clang --config x86_64-qqq2 -m32` loads `x86_64-qqq2.cfg` if `i386-qqq2.cfg` and `i386.cfg` do not exist.
+//
+// RUN: %clang --config-system-dir=%S/Inputs/config --config-user-dir= --config x86_64-qqq2 -m32 -c %s -### 2>&1 | FileCheck %s -check-prefix CHECK-RELOAD2
+// note: target is overriden due to -m32
+// CHECK-RELOAD2: Target: i386
+// CHECK-RELOAD2: Configuration file: {{.*}}Inputs{{.}}config{{.}}x86_64-qqq2.cfg
+
+
+//--- Invocation `clang --config i386-qqq3 -m64` loads `x86_64.cfg` if `x86_64-qqq3.cfg` does not exist.
+//
+// RUN: %clang --config-system-dir=%S/Inputs/config --config-user-dir= --config i386-qqq3 -m64 -c %s -### 2>&1 | FileCheck %s -check-prefix CHECK-RELOAD3
+// CHECK-RELOAD3: Target: x86_64
+// CHECK-RELOAD3: Configuration file: {{.*}}Inputs{{.}}config{{.}}x86_64.cfg
+
+
+//--- Invocation `clang --config x86_64-qqq -target i386` loads `i386-qqq.cfg` if the latter exists.
+//
+// RUN: %clang --config-system-dir=%S/Inputs/config --config-user-dir= --config x86_64-qqq -target i386 -c %s -### 2>&1 | FileCheck %s -check-prefix CHECK-RELOAD4
+// CHECK-RELOAD4: Target: i386
+// CHECK-RELOAD4: Configuration file: {{.*}}Inputs{{.}}config{{.}}i386-qqq.cfg
+
+
+//--- Invocation `clang --config x86_64-qqq2 -target i386` loads `x86_64-qqq2.cfg` if `i386-qqq2.cfg` and `i386.cfg` do not exist.
+//
+// RUN: %clang --config-system-dir=%S/Inputs/config --config-user-dir= --config x86_64-qqq2 -target i386 -c %s -### 2>&1 | FileCheck %s -check-prefix CHECK-RELOAD5
+// note: target is overriden due to -target i386
+// CHECK-RELOAD5: Target: i386
+// CHECK-RELOAD5: Configuration file: {{.*}}Inputs{{.}}config{{.}}x86_64-qqq2.cfg
+
+
+//--- Invocation `clang --config x86_64-qqq -target i386 -m64` loads `x86_64-qqq.cfg`.
+//
+// RUN: %clang --config-system-dir=%S/Inputs/config --config-user-dir= --config x86_64-qqq -target i386 -m64 -c %s -### 2>&1 | FileCheck %s -check-prefix CHECK-RELOAD6
+// CHECK-RELOAD6: Target: x86_64
+// CHECK-RELOAD6: Configuration file: {{.*}}Inputs{{.}}config{{.}}x86_64-qqq.cfg
diff --git a/clang/test/Driver/config-file3.c b/clang/test/Driver/config-file3.c
new file mode 100644
index 00000000000..c1b523cbf97
--- /dev/null
+++ b/clang/test/Driver/config-file3.c
@@ -0,0 +1,98 @@
+// REQUIRES: shell
+// REQUIRES: x86-registered-target
+
+//--- If config file is specified by relative path (workdir/cfg-s2), it is searched for by that path.
+//
+// RUN: mkdir -p %T/workdir
+// RUN: echo "@subdir/cfg-s2" > %T/workdir/cfg-1
+// RUN: mkdir -p %T/workdir/subdir
+// RUN: echo "-Wundefined-var-template" > %T/workdir/subdir/cfg-s2
+//
+// RUN: ( cd %T && %clang --config workdir/cfg-1 -c %s -### 2>&1 | FileCheck %s -check-prefix CHECK-REL )
+//
+// CHECK-REL: Configuration file: {{.*}}/workdir/cfg-1
+// CHECK-REL: -Wundefined-var-template
+
+
+//--- Invocation qqq-clang-g++ tries to find config file qqq-clang-g++.cfg first.
+//
+// RUN: mkdir -p %T/testdmode
+// RUN: [ ! -s %T/testdmode/qqq-clang-g++ ] || rm %T/testdmode/qqq-clang-g++
+// RUN: ln -s %clang %T/testdmode/qqq-clang-g++
+// RUN: echo "-Wundefined-func-template" > %T/testdmode/qqq-clang-g++.cfg
+// RUN: echo "-Werror" > %T/testdmode/qqq.cfg
+// RUN: %T/testdmode/qqq-clang-g++ --config-system-dir= --config-user-dir= -c -no-canonical-prefixes %s -### 2>&1 | FileCheck %s -check-prefix FULL-NAME
+//
+// FULL-NAME: Configuration file: {{.*}}/testdmode/qqq-clang-g++.cfg
+// FULL-NAME: -Wundefined-func-template
+// FULL-NAME-NOT: -Werror
+//
+//--- File specified by --config overrides config inferred from clang executable.
+//
+// RUN: %T/testdmode/qqq-clang-g++ --config-system-dir=%S/Inputs/config --config-user-dir= --config i386-qqq -c -no-canonical-prefixes %s -### 2>&1 | FileCheck %s -check-prefix CHECK-EXPLICIT
+//
+// CHECK-EXPLICIT: Configuration file: {{.*}}/Inputs/config/i386-qqq.cfg
+//
+//--- Invocation qqq-clang-g++ tries to find config file qqq.cfg if qqq-clang-g++.cfg is not found.
+//
+// RUN: rm %T/testdmode/qqq-clang-g++.cfg
+// RUN: %T/testdmode/qqq-clang-g++ --config-system-dir= --config-user-dir= -c -no-canonical-prefixes %s -### 2>&1 | FileCheck %s -check-prefix SHORT-NAME
+//
+// SHORT-NAME: Configuration file: {{.*}}/testdmode/qqq.cfg
+// SHORT-NAME: -Werror
+// SHORT-NAME-NOT: -Wundefined-func-template
+
+
+//--- Config files are searched for in binary directory as well.
+//
+// RUN: mkdir -p %T/testbin
+// RUN: [ ! -s %T/testbin/clang ] || rm %T/testbin/clang
+// RUN: ln -s %clang %T/testbin/clang
+// RUN: echo "-Werror" > %T/testbin/aaa.cfg
+// RUN: %T/testbin/clang --config-system-dir= --config-user-dir= --config aaa.cfg -c -no-canonical-prefixes %s -### 2>&1 | FileCheck %s -check-prefix CHECK-BIN
+//
+// CHECK-BIN: Configuration file: {{.*}}/testbin/aaa.cfg
+// CHECK-BIN: -Werror
+
+
+//--- If command line contains options that change triple (for instance, -m32), clang tries
+// reloading config file.
+
+//--- When reloading config file, x86_64-clang-g++ tries to find config i386-clang-g++.cfg first.
+//
+// RUN: mkdir -p %T/testreload
+// RUN: [ ! -s %T/testreload/x86_64-clang-g++ ] || rm %T/testreload/x86_64-clang-g++
+// RUN: ln -s %clang %T/testreload/x86_64-clang-g++
+// RUN: echo "-Wundefined-func-template" > %T/testreload/i386-clang-g++.cfg
+// RUN: echo "-Werror" > %T/testreload/i386.cfg
+// RUN: %T/testreload/x86_64-clang-g++ --config-system-dir= --config-user-dir= -c -m32 -no-canonical-prefixes %s -### 2>&1 | FileCheck %s -check-prefix CHECK-RELOAD
+//
+// CHECK-RELOAD: Configuration file: {{.*}}/testreload/i386-clang-g++.cfg
+// CHECK-RELOAD: -Wundefined-func-template
+// CHECK-RELOAD-NOT: -Werror
+
+//--- If config file is specified by --config and its name does not start with architecture, it is used without reloading.
+//
+// RUN: %T/testreload/x86_64-clang-g++ --config-system-dir=%S/Inputs --config-user-dir= --config config-3 -c -m32 -no-canonical-prefixes %s -### 2>&1 | FileCheck %s -check-prefix CHECK-RELOAD1a
+//
+// CHECK-RELOAD1a: Configuration file: {{.*}}/Inputs/config-3.cfg
+//
+// RUN: %T/testreload/x86_64-clang-g++ --config-system-dir=%S/Inputs --config-user-dir= --config config-3 -c -target i386 -no-canonical-prefixes %s -### 2>&1 | FileCheck %s -check-prefix CHECK-RELOAD1b
+//
+// CHECK-RELOAD1b: Configuration file: {{.*}}/Inputs/config-3.cfg
+
+//--- If config file is specified by --config and its name starts with architecture, it is reloaded.
+//
+// RUN: %T/testreload/x86_64-clang-g++ --config-system-dir=%S/Inputs/config --config-user-dir= --config x86_64-qqq -c -m32 -no-canonical-prefixes %s -### 2>&1 | FileCheck %s -check-prefix CHECK-RELOAD1c
+//
+// CHECK-RELOAD1c: Configuration file: {{.*}}/Inputs/config/i386-qqq.cfg
+
+//--- x86_64-clang-g++ tries to find config i386.cfg if i386-clang-g++.cfg is not found.
+//
+// RUN: rm %T/testreload/i386-clang-g++.cfg
+// RUN: %T/testreload/x86_64-clang-g++ --config-system-dir= --config-user-dir= -c -m32 -no-canonical-prefixes %s -### 2>&1 | FileCheck %s -check-prefix CHECK-RELOAD1d
+//
+// CHECK-RELOAD1d: Configuration file: {{.*}}/testreload/i386.cfg
+// CHECK-RELOAD1d: -Werror
+// CHECK-RELOAD1d-NOT: -Wundefined-func-template
+
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