llvm-project

1
// RUN: %clang_cc1 -triple x86_64-apple-macosx10.11 -emit-llvm -o - %s | FileCheck %s
2

3
void use_at_available(void) {
4
  // CHECK: call i32 @__isPlatformVersionAtLeast(i32 1, i32 10, i32 12, i32 0)
5
  // CHECK-NEXT: icmp ne
6
  if (__builtin_available(macos 10.12, *))
7
    ;
8

9
  // CHECK: call i32 @__isPlatformVersionAtLeast(i32 1, i32 10, i32 12, i32 0)
10
  // CHECK-NEXT: icmp ne
11
  if (@available(macos 10.12, *))
12
    ;
13

14
  // CHECK: call i32 @__isPlatformVersionAtLeast(i32 1, i32 10, i32 12, i32 42)
15
  // CHECK-NEXT: icmp ne
16
  if (__builtin_available(ios 10, macos 10.12.42, *))
17
    ;
18

19
  // CHECK-NOT: call i32 @__isPlatformVersionAtLeast
20
  // CHECK: br i1 true
21
  if (__builtin_available(ios 10, *))
22
    ;
23

24
  // This check should be folded: our deployment target is 10.11.
25
  // CHECK-NOT: call i32 @__isPlatformVersionAtLeast
26
  // CHECK: br i1 true
27
  if (__builtin_available(macos 10.11, *))
28
    ;
29
}
30

31
// CHECK: declare i32 @__isPlatformVersionAtLeast(i32, i32, i32, i32)
32