1; RUN: opt -S -wholeprogramdevirt -whole-program-visibility %s | FileCheck %s
2
3target datalayout = "e-p:64:64"
4target triple = "x86_64-unknown-linux-gnu"
5
6@vt1 = constant [1 x i8*] [i8* bitcast (i32 ()* @vf1 to i8*)], !type !0
7@vt2 = constant [1 x i8*] [i8* bitcast (i32 ()* @vf2 to i8*)], !type !0
8
9define i32 @vf1() readnone {
10  ret i32 1
11}
12
13define i32 @vf2() readnone {
14  ret i32 2
15}
16
17; CHECK: define i32 @call
18define i32 @call(i8* %obj) {
19  %vtableptr = bitcast i8* %obj to [1 x i8*]**
20  %vtable = load [1 x i8*]*, [1 x i8*]** %vtableptr
21  %vtablei8 = bitcast [1 x i8*]* %vtable to i8*
22  %p = call i1 @llvm.type.test(i8* %vtablei8, metadata !"typeid")
23  call void @llvm.assume(i1 %p)
24  %fptrptr = getelementptr [1 x i8*], [1 x i8*]* %vtable, i32 0, i32 0
25  %fptr = load i8*, i8** %fptrptr
26  %fptr_casted = bitcast i8* %fptr to i32 ()*
27  ; CHECK: call i32 %
28  %result = call i32 %fptr_casted()
29  ret i32 %result
30}
31
32declare i1 @llvm.type.test(i8*, metadata)
33declare void @llvm.assume(i1)
34
35!0 = !{i32 0, !"typeid"}
36