llvm-project/clang/test/CodeGenObjC/availability-check.m
Erik Pilkington 9c42a8d43e [ObjC][CodeGen] CodeGen support for @available.
CodeGens uses of @available into calls to the compiler-rt function
__isOSVersionAtLeast.

This commit is part of a feature that I proposed here:
http://lists.llvm.org/pipermail/cfe-dev/2016-July/049851.html

Differential revision: https://reviews.llvm.org/D27827

llvm-svn: 296015
2017-02-23 21:08:08 +00:00

32 lines
901 B
Mathematica

// RUN: %clang_cc1 -triple x86_64-apple-macosx10.11 -emit-llvm -o - %s | FileCheck %s
void use_at_available() {
// CHECK: call i32 @__isOSVersionAtLeast(i32 10, i32 12, i32 0)
// CHECK-NEXT: icmp ne
if (__builtin_available(macos 10.12, *))
;
// CHECK: call i32 @__isOSVersionAtLeast(i32 10, i32 12, i32 0)
// CHECK-NEXT: icmp ne
if (@available(macos 10.12, *))
;
// CHECK: call i32 @__isOSVersionAtLeast(i32 10, i32 12, i32 42)
// CHECK-NEXT: icmp ne
if (__builtin_available(ios 10, macos 10.12.42, *))
;
// CHECK-NOT: call i32 @__isOSVersionAtLeast
// CHECK: br i1 true
if (__builtin_available(ios 10, *))
;
// This check should be folded: our deployment target is 10.11.
// CHECK-NOT: call i32 @__isOSVersionAtLeast
// CHECK: br i1 true
if (__builtin_available(macos 10.11, *))
;
}
// CHECK: declare i32 @__isOSVersionAtLeast(i32, i32, i32)