xref: /minix3/external/bsd/llvm/dist/clang/test/CodeGenObjC/arc-block-copy-escape.m (revision f4a2713ac843a11c696ec80c0a5e3e5d80b4d338) 
1*f4a2713aSLionel Sambuc// RUN: %clang_cc1 -fobjc-arc -fblocks -emit-llvm %s -o - | FileCheck %s
2*f4a2713aSLionel Sambuc
3*f4a2713aSLionel Sambuctypedef void (^block_t)(void);
4*f4a2713aSLionel Sambucvoid use_block(block_t);
5*f4a2713aSLionel Sambucvoid use_int(int);
6*f4a2713aSLionel Sambuc
7*f4a2713aSLionel Sambuc// rdar://problem/10211676
8*f4a2713aSLionel Sambuc
9*f4a2713aSLionel Sambucvoid test0(int i) {
10*f4a2713aSLionel Sambuc  block_t block = ^{ use_int(i); };
11*f4a2713aSLionel Sambuc  // CHECK-LABEL:   define void @test0(
12*f4a2713aSLionel Sambuc  // CHECK:     call i8* @objc_retainBlock(i8* {{%.*}}) [[NUW:#[0-9]+]], !clang.arc.copy_on_escape
13*f4a2713aSLionel Sambuc  // CHECK:     ret void
14*f4a2713aSLionel Sambuc}
15*f4a2713aSLionel Sambuc
16*f4a2713aSLionel Sambucvoid test1(int i) {
17*f4a2713aSLionel Sambuc  id block = ^{ use_int(i); };
18*f4a2713aSLionel Sambuc  // CHECK-LABEL:   define void @test1(
19*f4a2713aSLionel Sambuc  // CHECK:     call i8* @objc_retainBlock(i8* {{%.*}}) [[NUW]]
20*f4a2713aSLionel Sambuc  // CHECK-NOT: !clang.arc.copy_on_escape
21*f4a2713aSLionel Sambuc  // CHECK:     ret void
22*f4a2713aSLionel Sambuc}
23*f4a2713aSLionel Sambuc
24*f4a2713aSLionel Sambuc// CHECK: attributes [[NUW]] = { nounwind }
25