Test case for r133840, neglectfully uncommitted.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133841 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGenObjC/gc.m b/test/CodeGenObjC/gc.m
new file mode 100644 (file)
index 0000000..93554e6
--- /dev/null
+++ b/test/CodeGenObjC/gc.m
@@ -0,0 +1,14 @@
+// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fobjc-gc -fobjc-nonfragile-abi -emit-llvm -o - %s | FileCheck %s
+
+void test0(void) {
+  extern id test0_helper(void);
+  __attribute__((objc_precise_lifetime)) id x = test0_helper();
+  test0_helper();
+  // CHECK: define void @test0()
+  // CHECK:      [[T0:%.*]] = call i8* @test0_helper()
+  // CHECK-NEXT: store i8* [[T0]], i8** [[X:%.*]], align 8
+  // CHECK-NEXT: call i8* @test0_helper()
+  // CHECK-NEXT: [[T0:%.*]] = load i8** [[X]], align 8
+  // CHECK-NEXT: call void asm sideeffect "", "r"(i8* [[T0]]) nounwind
+  // CHECK-NEXT: ret void
+}