1 files changed, 14 insertions, 0 deletions
diff --git a/test/PCH/no-escaping-block-tail-calls.cpp b/test/PCH/no-escaping-block-tail-calls.cpp
new file mode 100644
index 000000000000..5ae8108f387d
--- /dev/null
+++ b/test/PCH/no-escaping-block-tail-calls.cpp
@@ -0,0 +1,14 @@
+// RUN: %clang_cc1 -x c++-header -triple x86_64-apple-darwin11 -emit-pch -O1 -fblocks -fno-escaping-block-tail-calls -o %t %S/no-escaping-block-tail-calls.h
+// RUN: %clang_cc1 -triple x86_64-apple-darwin11 -include-pch %t -emit-llvm -O1 -fblocks -fno-escaping-block-tail-calls -o - %s | FileCheck %s
+
+// Check that -fno-escaping-block-tail-calls doesn't disable tail-call
+// optimization if the block is non-escaping.
+
+// CHECK-LABEL: define internal i32 @___ZN1S1mEv_block_invoke(
+// CHECK: %[[CALL:.*]] = tail call i32 @_ZN1S3fooER2S0(
+// CHECK-NEXT: ret i32 %[[CALL]]
+
+void test() {
+  S s;
+  s.m();
+}