1; RUN: opt -S -wholeprogramdevirt -whole-program-visibility -pass-remarks=wholeprogramdevirt %s 2>&1 | FileCheck %s
2
3target datalayout = "e-p:64:64"
4target triple = "x86_64-unknown-linux-gnu"
5
6; CHECK: remark: <unknown>:0:0: single-impl: devirtualized a call to vf
7; CHECK: remark: <unknown>:0:0: devirtualized vf
8; CHECK-NOT: devirtualized
9
10@vt1 = constant [1 x i8*] [i8* bitcast (void (i8*)* @vf to i8*)], !type !0
11@vt2 = constant [1 x i8*] [i8* bitcast (void (i8*)* @vf to i8*)], !type !0
12
13define void @vf(i8* %this) {
14  ret void
15}
16
17; CHECK: define void @call
18define void @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  %pair = call {i8*, i1} @llvm.type.checked.load(i8* %vtablei8, i32 0, metadata !"typeid")
23  %fptr = extractvalue {i8*, i1} %pair, 0
24  %p = extractvalue {i8*, i1} %pair, 1
25  ; CHECK: br i1 true,
26  br i1 %p, label %cont, label %trap
27
28cont:
29  %fptr_casted = bitcast i8* %fptr to void (i8*)*
30  ; CHECK: call void @vf(
31  call void %fptr_casted(i8* %obj)
32  ret void
33
34trap:
35  call void @llvm.trap()
36  unreachable
37}
38
39declare {i8*, i1} @llvm.type.checked.load(i8*, i32, metadata)
40declare void @llvm.trap()
41
42!0 = !{i32 0, !"typeid"}
43