|  | // RUN: %clang_cc1 -triple x86_64-apple-macosx10.11 -emit-llvm -o - %s | FileCheck --check-prefixes=CHECK,CHECK_LINK_OPT %s | 
|  | // RUN: %clang_cc1 -triple x86_64-apple-macosx10.11 -emit-llvm -o - -D USE_BUILTIN %s | FileCheck --check-prefixes=CHECK,CHECK_LINK_OPT %s | 
|  | // RUN: %clang_cc1 -triple x86_64-apple-macosx10.11 -emit-llvm -o - -D DEF_CF %s | FileCheck --check-prefixes=CHECK_CF,CHECK_LINK_OPT %s | 
|  | // RUN: %clang_cc1 -triple x86_64-apple-macosx10.12 -emit-llvm -o - %s | FileCheck --check-prefix=CHECK_NO_GUARD %s | 
|  | // RUN: %clang_cc1 -triple x86_64-unknown-linux -emit-llvm -o - %s | FileCheck --check-prefix=CHECK_NO_GUARD %s | 
|  |  | 
|  | #ifdef DEF_CF | 
|  | struct CFBundle; | 
|  | typedef struct CFBundle *CFBundleRef; | 
|  | unsigned CFBundleGetVersionNumber(CFBundleRef bundle); | 
|  | // CHECK_CF: declare i32 @CFBundleGetVersionNumber(%struct.CFBundle*) | 
|  | // CHECK_CF: @__clang_at_available_requires_core_foundation_framework | 
|  | // CHECK_CF-NEXT: call {{.*}}@CFBundleGetVersionNumber | 
|  | #endif | 
|  |  | 
|  | void use_at_available() { | 
|  | #ifdef DEF_CF | 
|  | CFBundleGetVersionNumber(0); | 
|  | #endif | 
|  | #ifdef USE_BUILTIN | 
|  | if (__builtin_available(macos 10.12, *)) | 
|  | ; | 
|  | #else | 
|  | if (@available(macos 10.12, *)) | 
|  | ; | 
|  | #endif | 
|  | } | 
|  |  | 
|  | // CHECK: @llvm.compiler.used{{.*}}@__clang_at_available_requires_core_foundation_framework | 
|  |  | 
|  | // CHECK: declare i32 @CFBundleGetVersionNumber(i8*) | 
|  |  | 
|  | // CHECK-LABEL: linkonce hidden void @__clang_at_available_requires_core_foundation_framework | 
|  | // CHECK: call i32 @CFBundleGetVersionNumber(i8* null) | 
|  | // CHECK-NEXT: unreachable | 
|  |  | 
|  | // CHECK_NO_GUARD-NOT: __clang_at_available_requires_core_foundation_framework | 
|  | // CHECK_NO_GUARD-NOT: CFBundleGetVersionNumber | 
|  |  | 
|  | // CHECK_LINK_OPT: !llvm.linker.options = !{![[FRAMEWORK:[0-9]+]] | 
|  | // CHECK_LINK_OPT: ![[FRAMEWORK]] = !{!"-framework", !"CoreFoundation"} | 
|  |  | 
|  | // CHECK_NO_GUARD-NOT: !llvm.linker.options | 
|  | // CHECK_NO_GUARD-NOT: CoreFoundation |