1// RUN: %clang_cc1 %s -emit-llvm -o - -triple x86_64-darwin-apple -fobjc-arc -O2 | FileCheck %s
2
3// Make sure we emit clang.arc.use before calling objc_release as part of the
4// cleanup. This way we make sure the object will not be released until the
5// end of the full expression.
6
7// rdar://problem/24528966
8
9@class NSString;
10extern __attribute__((visibility("default"))) NSString *GenString();
11
12// Behavior of __builtin_os_log differs between platforms, so only test on X86
13#ifdef __x86_64__
14// CHECK-LABEL: define i8* @test_builtin_os_log
15void *test_builtin_os_log(void *buf) {
16  return __builtin_os_log_format(buf, "capabilities: %@", GenString());
17
18  // CHECK: store i8 2, i8*
19  // CHECK: [[NUM_ARGS:%.*]] = getelementptr i8, i8* {{.*}}, i64 1
20  // CHECK: store i8 1, i8* [[NUM_ARGS]]
21  //
22  // CHECK: [[ARG1_DESC:%.*]] = getelementptr i8, i8* {{.*}}, i64 2
23  // CHECK: store i8 64, i8* [[ARG1_DESC]]
24  // CHECK: [[ARG1_SIZE:%.*]] = getelementptr i8, i8* {{.*}}, i64 3
25  // CHECK: store i8 8, i8* [[ARG1_SIZE]]
26  // CHECK: [[ARG1:%.*]] = getelementptr i8, i8* {{.*}}, i64 4
27  // CHECK: [[ARG1_CAST:%.*]] = bitcast i8* [[ARG1]] to
28
29  // CHECK: [[STRING:%.*]] = {{.*}} call {{.*}} @GenString()
30  // CHECK: [[STRING_CAST:%.*]] = bitcast {{.*}} [[STRING]] to
31  // CHECK: call {{.*}} @objc_retainAutoreleasedReturnValue(i8* [[STRING_CAST]])
32  // CHECK: store {{.*}} [[STRING]], {{.*}} [[ARG1_CAST]]
33
34  // CHECK: call void (...) @clang.arc.use({{.*}} [[STRING]])
35  // CHECK: call void @objc_release(i8* [[STRING_CAST]])
36  // CHECK: ret i8*
37}
38
39#endif
40