1; RUN: opt -S -wholeprogramdevirt %s | FileCheck %s
2
3target datalayout = "e-p:64:64"
4target triple = "x86_64-unknown-linux-gnu"
5
6; CHECK: [[VT1DATA:@[^ ]*]] = private constant { [8 x i8], [3 x i8*], [0 x i8] } { [8 x i8] c"\00\00\00\01\01\00\00\00", [3 x i8*] [i8* bitcast (i1 (i8*)* @vf0i1 to i8*), i8* bitcast (i1 (i8*)* @vf1i1 to i8*), i8* bitcast (i32 (i8*)* @vf1i32 to i8*)], [0 x i8] zeroinitializer }, section "vt1sec", !type [[T8:![0-9]+]]
7@vt1 = constant [3 x i8*] [
8i8* bitcast (i1 (i8*)* @vf0i1 to i8*),
9i8* bitcast (i1 (i8*)* @vf1i1 to i8*),
10i8* bitcast (i32 (i8*)* @vf1i32 to i8*)
11], section "vt1sec", !type !0
12
13; CHECK: [[VT2DATA:@[^ ]*]] = private constant { [8 x i8], [3 x i8*], [0 x i8] } { [8 x i8] c"\00\00\00\02\02\00\00\00", [3 x i8*] [i8* bitcast (i1 (i8*)* @vf1i1 to i8*), i8* bitcast (i1 (i8*)* @vf0i1 to i8*), i8* bitcast (i32 (i8*)* @vf2i32 to i8*)], [0 x i8] zeroinitializer }, !type [[T8]]
14@vt2 = constant [3 x i8*] [
15i8* bitcast (i1 (i8*)* @vf1i1 to i8*),
16i8* bitcast (i1 (i8*)* @vf0i1 to i8*),
17i8* bitcast (i32 (i8*)* @vf2i32 to i8*)
18], !type !0
19
20; CHECK: [[VT3DATA:@[^ ]*]] = private constant { [8 x i8], [3 x i8*], [0 x i8] } { [8 x i8] c"\00\00\00\01\03\00\00\00", [3 x i8*] [i8* bitcast (i1 (i8*)* @vf0i1 to i8*), i8* bitcast (i1 (i8*)* @vf1i1 to i8*), i8* bitcast (i32 (i8*)* @vf3i32 to i8*)], [0 x i8] zeroinitializer }, !type [[T8]]
21@vt3 = constant [3 x i8*] [
22i8* bitcast (i1 (i8*)* @vf0i1 to i8*),
23i8* bitcast (i1 (i8*)* @vf1i1 to i8*),
24i8* bitcast (i32 (i8*)* @vf3i32 to i8*)
25], !type !0
26
27; CHECK: [[VT4DATA:@[^ ]*]] = private constant { [8 x i8], [3 x i8*], [0 x i8] } { [8 x i8] c"\00\00\00\02\04\00\00\00", [3 x i8*] [i8* bitcast (i1 (i8*)* @vf1i1 to i8*), i8* bitcast (i1 (i8*)* @vf0i1 to i8*), i8* bitcast (i32 (i8*)* @vf4i32 to i8*)], [0 x i8] zeroinitializer }, !type [[T8]]
28@vt4 = constant [3 x i8*] [
29i8* bitcast (i1 (i8*)* @vf1i1 to i8*),
30i8* bitcast (i1 (i8*)* @vf0i1 to i8*),
31i8* bitcast (i32 (i8*)* @vf4i32 to i8*)
32], !type !0
33
34; CHECK: @vt5 = {{.*}}, !type [[T0:![0-9]+]]
35@vt5 = constant [3 x i8*] [
36i8* bitcast (void ()* @__cxa_pure_virtual to i8*),
37i8* bitcast (void ()* @__cxa_pure_virtual to i8*),
38i8* bitcast (void ()* @__cxa_pure_virtual to i8*)
39], !type !0
40
41; CHECK: @vt1 = alias [3 x i8*], getelementptr inbounds ({ [8 x i8], [3 x i8*], [0 x i8] }, { [8 x i8], [3 x i8*], [0 x i8] }* [[VT1DATA]], i32 0, i32 1)
42; CHECK: @vt2 = alias [3 x i8*], getelementptr inbounds ({ [8 x i8], [3 x i8*], [0 x i8] }, { [8 x i8], [3 x i8*], [0 x i8] }* [[VT2DATA]], i32 0, i32 1)
43; CHECK: @vt3 = alias [3 x i8*], getelementptr inbounds ({ [8 x i8], [3 x i8*], [0 x i8] }, { [8 x i8], [3 x i8*], [0 x i8] }* [[VT3DATA]], i32 0, i32 1)
44; CHECK: @vt4 = alias [3 x i8*], getelementptr inbounds ({ [8 x i8], [3 x i8*], [0 x i8] }, { [8 x i8], [3 x i8*], [0 x i8] }* [[VT4DATA]], i32 0, i32 1)
45
46define i1 @vf0i1(i8* %this) readnone {
47  ret i1 0
48}
49
50define i1 @vf1i1(i8* %this) readnone {
51  ret i1 1
52}
53
54define i32 @vf1i32(i8* %this) readnone {
55  ret i32 1
56}
57
58define i32 @vf2i32(i8* %this) readnone {
59  ret i32 2
60}
61
62define i32 @vf3i32(i8* %this) readnone {
63  ret i32 3
64}
65
66define i32 @vf4i32(i8* %this) readnone {
67  ret i32 4
68}
69
70; CHECK: define i1 @call1(
71define i1 @call1(i8* %obj) {
72  %vtableptr = bitcast i8* %obj to [3 x i8*]**
73  %vtable = load [3 x i8*]*, [3 x i8*]** %vtableptr
74  ; CHECK: [[VT1:%[^ ]*]] = bitcast [3 x i8*]* {{.*}} to i8*
75  %vtablei8 = bitcast [3 x i8*]* %vtable to i8*
76  %p = call i1 @llvm.type.test(i8* %vtablei8, metadata !"typeid")
77  call void @llvm.assume(i1 %p)
78  %fptrptr = getelementptr [3 x i8*], [3 x i8*]* %vtable, i32 0, i32 0
79  %fptr = load i8*, i8** %fptrptr
80  %fptr_casted = bitcast i8* %fptr to i1 (i8*)*
81  ; CHECK: [[VTGEP1:%[^ ]*]] = getelementptr i8, i8* [[VT1]], i64 -5
82  ; CHECK: [[VTLOAD1:%[^ ]*]] = load i8, i8* [[VTGEP1]]
83  ; CHECK: [[VTAND1:%[^ ]*]] = and i8 [[VTLOAD1]], 2
84  ; CHECK: [[VTCMP1:%[^ ]*]] = icmp ne i8 [[VTAND1]], 0
85  %result = call i1 %fptr_casted(i8* %obj)
86  ; CHECK: ret i1 [[VTCMP1]]
87  ret i1 %result
88}
89
90; CHECK: define i1 @call2(
91define i1 @call2(i8* %obj) {
92  %vtableptr = bitcast i8* %obj to [3 x i8*]**
93  %vtable = load [3 x i8*]*, [3 x i8*]** %vtableptr
94  ; CHECK: [[VT2:%[^ ]*]] = bitcast [3 x i8*]* {{.*}} to i8*
95  %vtablei8 = bitcast [3 x i8*]* %vtable to i8*
96  %p = call i1 @llvm.type.test(i8* %vtablei8, metadata !"typeid")
97  call void @llvm.assume(i1 %p)
98  %fptrptr = getelementptr [3 x i8*], [3 x i8*]* %vtable, i32 0, i32 1
99  %fptr = load i8*, i8** %fptrptr
100  %fptr_casted = bitcast i8* %fptr to i1 (i8*)*
101  ; CHECK: [[VTGEP2:%[^ ]*]] = getelementptr i8, i8* [[VT2]], i64 -5
102  ; CHECK: [[VTLOAD2:%[^ ]*]] = load i8, i8* [[VTGEP2]]
103  ; CHECK: [[VTAND2:%[^ ]*]] = and i8 [[VTLOAD2]], 1
104  ; CHECK: [[VTCMP2:%[^ ]*]] = icmp ne i8 [[VTAND2]], 0
105  %result = call i1 %fptr_casted(i8* %obj)
106  ; CHECK: ret i1 [[VTCMP2]]
107  ret i1 %result
108}
109
110; CHECK: define i32 @call3(
111define i32 @call3(i8* %obj) {
112  %vtableptr = bitcast i8* %obj to [3 x i8*]**
113  %vtable = load [3 x i8*]*, [3 x i8*]** %vtableptr
114  ; CHECK: [[VT3:%[^ ]*]] = bitcast [3 x i8*]* {{.*}} to i8*
115  %vtablei8 = bitcast [3 x i8*]* %vtable to i8*
116  %p = call i1 @llvm.type.test(i8* %vtablei8, metadata !"typeid")
117  call void @llvm.assume(i1 %p)
118  %fptrptr = getelementptr [3 x i8*], [3 x i8*]* %vtable, i32 0, i32 2
119  %fptr = load i8*, i8** %fptrptr
120  %fptr_casted = bitcast i8* %fptr to i32 (i8*)*
121  ; CHECK: [[VTGEP3:%[^ ]*]] = getelementptr i8, i8* [[VT3]], i64 -4
122  ; CHECK: [[VTBC3:%[^ ]*]] = bitcast i8* [[VTGEP3]] to i32*
123  ; CHECK: [[VTLOAD3:%[^ ]*]] = load i32, i32* [[VTBC3]]
124  %result = call i32 %fptr_casted(i8* %obj)
125  ; CHECK: ret i32 [[VTLOAD3]]
126  ret i32 %result
127}
128
129declare i1 @llvm.type.test(i8*, metadata)
130declare void @llvm.assume(i1)
131declare void @__cxa_pure_virtual()
132
133; CHECK: [[T8]] = !{i32 8, !"typeid"}
134; CHECK: [[T0]] = !{i32 0, !"typeid"}
135
136!0 = !{i32 0, !"typeid"}
137