1 ; RUN: opt -basicaa -objc-arc -S < %s | FileCheck %s
3 target datalayout = "e-p:64:64:64"
5 declare i8* @llvm.objc.retain(i8*)
6 declare i8* @llvm.objc.retainAutorelease(i8*)
7 declare void @llvm.objc.release(i8*)
8 declare i8* @llvm.objc.autorelease(i8*)
10 declare void @llvm.objc.clang.arc.use(...)
12 declare void @test0_helper(i8*, i8**)
14 ; Ensure that we honor clang.arc.use as a use and don't miscompile
15 ; the reduced test case from <rdar://13195034>.
17 ; CHECK-LABEL: define void @test0(
18 ; CHECK: @llvm.objc.retain(i8* %x)
19 ; CHECK-NEXT: store i8* %y, i8** %temp0
20 ; CHECK-NEXT: @llvm.objc.retain(i8* %y)
21 ; CHECK-NEXT: call void @test0_helper
22 ; CHECK-NEXT: [[VAL1:%.*]] = load i8*, i8** %temp0
23 ; CHECK-NEXT: @llvm.objc.retain(i8* [[VAL1]])
24 ; CHECK-NEXT: call void (...) @llvm.objc.clang.arc.use(i8* %y)
25 ; CHECK-NEXT: @llvm.objc.release(i8* %y)
26 ; CHECK-NEXT: store i8* [[VAL1]], i8** %temp1
27 ; CHECK-NEXT: call void @test0_helper
28 ; CHECK-NEXT: [[VAL2:%.*]] = load i8*, i8** %temp1
29 ; CHECK-NEXT: @llvm.objc.retain(i8* [[VAL2]])
30 ; CHECK-NEXT: call void (...) @llvm.objc.clang.arc.use(i8* [[VAL1]])
31 ; CHECK-NEXT: @llvm.objc.release(i8* [[VAL1]])
32 ; CHECK-NEXT: @llvm.objc.autorelease(i8* %x)
33 ; CHECK-NEXT: store i8* %x, i8** %out
34 ; CHECK-NEXT: @llvm.objc.retain(i8* %x)
35 ; CHECK-NEXT: @llvm.objc.release(i8* [[VAL2]])
36 ; CHECK-NEXT: @llvm.objc.release(i8* %x)
37 ; CHECK-NEXT: ret void
39 define void @test0(i8** %out, i8* %x, i8* %y) {
41 %temp0 = alloca i8*, align 8
42 %temp1 = alloca i8*, align 8
43 %0 = call i8* @llvm.objc.retain(i8* %x) nounwind
44 %1 = call i8* @llvm.objc.retain(i8* %y) nounwind
45 store i8* %y, i8** %temp0
46 call void @test0_helper(i8* %x, i8** %temp0)
47 %val1 = load i8*, i8** %temp0
48 %2 = call i8* @llvm.objc.retain(i8* %val1) nounwind
49 call void (...) @llvm.objc.clang.arc.use(i8* %y) nounwind
50 call void @llvm.objc.release(i8* %y) nounwind
51 store i8* %val1, i8** %temp1
52 call void @test0_helper(i8* %x, i8** %temp1)
53 %val2 = load i8*, i8** %temp1
54 %3 = call i8* @llvm.objc.retain(i8* %val2) nounwind
55 call void (...) @llvm.objc.clang.arc.use(i8* %val1) nounwind
56 call void @llvm.objc.release(i8* %val1) nounwind
57 %4 = call i8* @llvm.objc.retain(i8* %x) nounwind
58 %5 = call i8* @llvm.objc.autorelease(i8* %x) nounwind
59 store i8* %x, i8** %out
60 call void @llvm.objc.release(i8* %val2) nounwind
61 call void @llvm.objc.release(i8* %x) nounwind
65 ; CHECK-LABEL: define void @test0a(
66 ; CHECK: @llvm.objc.retain(i8* %x)
67 ; CHECK-NEXT: store i8* %y, i8** %temp0
68 ; CHECK-NEXT: @llvm.objc.retain(i8* %y)
69 ; CHECK-NEXT: call void @test0_helper
70 ; CHECK-NEXT: [[VAL1:%.*]] = load i8*, i8** %temp0
71 ; CHECK-NEXT: @llvm.objc.retain(i8* [[VAL1]])
72 ; CHECK-NEXT: call void (...) @llvm.objc.clang.arc.use(i8* %y)
73 ; CHECK-NEXT: @llvm.objc.release(i8* %y)
74 ; CHECK-NEXT: store i8* [[VAL1]], i8** %temp1
75 ; CHECK-NEXT: call void @test0_helper
76 ; CHECK-NEXT: [[VAL2:%.*]] = load i8*, i8** %temp1
77 ; CHECK-NEXT: @llvm.objc.retain(i8* [[VAL2]])
78 ; CHECK-NEXT: call void (...) @llvm.objc.clang.arc.use(i8* [[VAL1]])
79 ; CHECK-NEXT: @llvm.objc.release(i8* [[VAL1]])
80 ; CHECK-NEXT: @llvm.objc.autorelease(i8* %x)
81 ; CHECK-NEXT: @llvm.objc.release(i8* [[VAL2]])
82 ; CHECK-NEXT: store i8* %x, i8** %out
83 ; CHECK-NEXT: ret void
85 define void @test0a(i8** %out, i8* %x, i8* %y) {
87 %temp0 = alloca i8*, align 8
88 %temp1 = alloca i8*, align 8
89 %0 = call i8* @llvm.objc.retain(i8* %x) nounwind
90 %1 = call i8* @llvm.objc.retain(i8* %y) nounwind
91 store i8* %y, i8** %temp0
92 call void @test0_helper(i8* %x, i8** %temp0)
93 %val1 = load i8*, i8** %temp0
94 %2 = call i8* @llvm.objc.retain(i8* %val1) nounwind
95 call void (...) @llvm.objc.clang.arc.use(i8* %y) nounwind
96 call void @llvm.objc.release(i8* %y) nounwind, !clang.imprecise_release !0
97 store i8* %val1, i8** %temp1
98 call void @test0_helper(i8* %x, i8** %temp1)
99 %val2 = load i8*, i8** %temp1
100 %3 = call i8* @llvm.objc.retain(i8* %val2) nounwind
101 call void (...) @llvm.objc.clang.arc.use(i8* %val1) nounwind
102 call void @llvm.objc.release(i8* %val1) nounwind, !clang.imprecise_release !0
103 %4 = call i8* @llvm.objc.retain(i8* %x) nounwind
104 %5 = call i8* @llvm.objc.autorelease(i8* %x) nounwind
105 store i8* %x, i8** %out
106 call void @llvm.objc.release(i8* %val2) nounwind, !clang.imprecise_release !0
107 call void @llvm.objc.release(i8* %x) nounwind, !clang.imprecise_release !0