Add a test that ensures we get the basic multilib '-L' flags to 'ld'
invocations on Linux.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140909 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Driver/linux-ld.c b/test/Driver/linux-ld.c
new file mode 100644
index 0000000..bb50a65
--- /dev/null
+++ b/test/Driver/linux-ld.c
@@ -0,0 +1,9 @@
+// General tests that ld invocations on Linux targets sane.
+//
+// RUN: %clang -no-canonical-prefixes -ccc-host-triple i386-unknown-linux %s -### -o %t.o 2>&1 \
+// RUN:   | FileCheck --check-prefix=CHECK-LD-32 %s
+// CHECK-LD-32: "{{.*}}/ld" {{.*}} "-L/lib/../lib32" "-L/usr/lib/../lib32"
+//
+// RUN: %clang -no-canonical-prefixes -ccc-host-triple x86_64-unknown-linux %s -### -o %t.o 2>&1 \
+// RUN:   | FileCheck --check-prefix=CHECK-LD-64 %s
+// CHECK-LD-64: "{{.*}}/ld" {{.*}} "-L/lib/../lib64" "-L/usr/lib/../lib64"