1; RUN: opt -S -passes=wholeprogramdevirt -whole-program-visibility %s | FileCheck %s
2
3target datalayout = "e-p:64:64"
4target triple = "x86_64-unknown-linux-gnu"
5
6; CHECK: private constant { [8 x i8], [1 x i8*], [0 x i8] } { [8 x i8] c"\00\00\00\00\00\00\00\01", [1 x i8*] [i8* bitcast (i1 (i8*, i32)* @vf1 to i8*)], [0 x i8] zeroinitializer }, !type [[T8:![0-9]+]]
7; CHECK: private constant { [8 x i8], [1 x i8*], [0 x i8] } { [8 x i8] c"\00\00\00\00\00\00\00\02", [1 x i8*] [i8* bitcast (i1 (i8*, i32)* @vf2 to i8*)], [0 x i8] zeroinitializer }, !type [[T8]]
8; CHECK: private constant { [8 x i8], [1 x i8*], [0 x i8] } { [8 x i8] c"\00\00\00\00\00\00\00\01", [1 x i8*] [i8* bitcast (i1 (i8*, i32)* @vf4 to i8*)], [0 x i8] zeroinitializer }, !type [[T8]]
9; CHECK: private constant { [8 x i8], [1 x i8*], [0 x i8] } { [8 x i8] c"\00\00\00\00\00\00\00\02", [1 x i8*] [i8* bitcast (i1 (i8*, i32)* @vf8 to i8*)], [0 x i8] zeroinitializer }, !type [[T8]]
10
11@vt1 = constant [1 x i8*] [i8* bitcast (i1 (i8*, i32)* @vf1 to i8*)], !type !0
12@vt2 = constant [1 x i8*] [i8* bitcast (i1 (i8*, i32)* @vf2 to i8*)], !type !0
13@vt4 = constant [1 x i8*] [i8* bitcast (i1 (i8*, i32)* @vf4 to i8*)], !type !0
14@vt8 = constant [1 x i8*] [i8* bitcast (i1 (i8*, i32)* @vf8 to i8*)], !type !0
15
16define i1 @vf1(i8* %this, i32 %arg) readnone {
17  %and = and i32 %arg, 1
18  %cmp = icmp ne i32 %and, 0
19  ret i1 %cmp
20}
21
22define i1 @vf2(i8* %this, i32 %arg) readnone {
23  %and = and i32 %arg, 2
24  %cmp = icmp ne i32 %and, 0
25  ret i1 %cmp
26}
27
28define i1 @vf4(i8* %this, i32 %arg) readnone {
29  %and = and i32 %arg, 4
30  %cmp = icmp ne i32 %and, 0
31  ret i1 %cmp
32}
33
34define i1 @vf8(i8* %this, i32 %arg) readnone {
35  %and = and i32 %arg, 8
36  %cmp = icmp ne i32 %and, 0
37  ret i1 %cmp
38}
39
40; CHECK: define i1 @call1
41define i1 @call1(i8* %obj) {
42  %vtableptr = bitcast i8* %obj to [1 x i8*]**
43  %vtable = load [1 x i8*]*, [1 x i8*]** %vtableptr
44  %vtablei8 = bitcast [1 x i8*]* %vtable to i8*
45  %p = call i1 @llvm.type.test(i8* %vtablei8, metadata !"typeid")
46  call void @llvm.assume(i1 %p)
47  %fptrptr = getelementptr [1 x i8*], [1 x i8*]* %vtable, i32 0, i32 0
48  %fptr = load i8*, i8** %fptrptr
49  %fptr_casted = bitcast i8* %fptr to i1 (i8*, i32)*
50  ; CHECK: getelementptr {{.*}} -1
51  ; CHECK: and {{.*}}, 1
52  %result = call i1 %fptr_casted(i8* %obj, i32 5)
53  ret i1 %result
54}
55
56; CHECK: define i1 @call2
57define i1 @call2(i8* %obj) {
58  %vtableptr = bitcast i8* %obj to [1 x i8*]**
59  %vtable = load [1 x i8*]*, [1 x i8*]** %vtableptr
60  %vtablei8 = bitcast [1 x i8*]* %vtable to i8*
61  %p = call i1 @llvm.type.test(i8* %vtablei8, metadata !"typeid")
62  call void @llvm.assume(i1 %p)
63  %fptrptr = getelementptr [1 x i8*], [1 x i8*]* %vtable, i32 0, i32 0
64  %fptr = load i8*, i8** %fptrptr
65  %fptr_casted = bitcast i8* %fptr to i1 (i8*, i32)*
66  ; CHECK: getelementptr {{.*}} -1
67  ; CHECK: and {{.*}}, 2
68  %result = call i1 %fptr_casted(i8* %obj, i32 10)
69  ret i1 %result
70}
71
72declare i1 @llvm.type.test(i8*, metadata)
73declare void @llvm.assume(i1)
74
75; CHECK: [[T8]] = !{i32 8, !"typeid"}
76!0 = !{i32 0, !"typeid"}
77