Add a always_inline test case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63304 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/FrontendC/always-inline.c b/test/FrontendC/always-inline.c
new file mode 100644
index 0000000..22f6c7a
--- /dev/null
+++ b/test/FrontendC/always-inline.c
@@ -0,0 +1,12 @@
+// RUN: %llvmgcc -S %s -o - | grep call | not grep foo
+
+void bar() {
+}
+
+inline void __attribute__((__always_inline__)) foo() {
+  bar();
+}
+
+void i_want_bar() {
+  foo();
+}