1; RUN: opt -S -wholeprogramdevirt -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: devirtualized call
7; CHECK-NOT: devirtualized call
8
9@vt1 = constant [1 x i8*] [i8* bitcast (void (i8*)* @vf to i8*)], !type !0
10@vt2 = constant [1 x i8*] [i8* bitcast (void (i8*)* @vf to i8*)], !type !0
11
12define void @vf(i8* %this) {
13  ret void
14}
15
16; CHECK: define void @call
17define void @call(i8* %obj) {
18  %vtableptr = bitcast i8* %obj to [1 x i8*]**
19  %vtable = load [1 x i8*]*, [1 x i8*]** %vtableptr
20  %vtablei8 = bitcast [1 x i8*]* %vtable to i8*
21  %pair = call {i8*, i1} @llvm.type.checked.load(i8* %vtablei8, i32 0, metadata !"typeid")
22  %fptr = extractvalue {i8*, i1} %pair, 0
23  %p = extractvalue {i8*, i1} %pair, 1
24  ; CHECK: br i1 true,
25  br i1 %p, label %cont, label %trap
26
27cont:
28  %fptr_casted = bitcast i8* %fptr to void (i8*)*
29  ; CHECK: call void @vf(
30  call void %fptr_casted(i8* %obj)
31  ret void
32
33trap:
34  call void @llvm.trap()
35  unreachable
36}
37
38declare {i8*, i1} @llvm.type.checked.load(i8*, i32, metadata)
39declare void @llvm.trap()
40
41!0 = !{i32 0, !"typeid"}
42