1; RUN: opt < %s -globaldce -S | FileCheck %s
2
3target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
4
5declare { i8*, i1 } @llvm.type.checked.load(i8*, i32, metadata)
6
7@vtableA = internal unnamed_addr constant { [2 x i8*] } { [2 x i8*] [
8  i8* null,
9  i8* bitcast (void ()* @vfunc2 to i8*)
10]}, align 8, !type !{i64 0, !"vfunc1.type"}, !type !{i64 8, !"vfunc2.type"}, !vcall_visibility !{i64 2}
11
12; CHECK:      @vtableA = internal unnamed_addr constant { [2 x i8*] } { [2 x i8*] [
13; CHECK-SAME:   i8* null,
14; CHECK-SAME:   i8* bitcast (void ()* @vfunc2 to i8*)
15; CHECK-SAME: ] }, align 8
16
17@vtableB = internal unnamed_addr constant { [2 x i8*] } { [2 x i8*] [
18  i8* bitcast (void ()* @vfunc1 to i8*),
19  i8* bitcast (void ()* @vfunc2 to i8*)
20]}, align 8, !type !{i64 0, !"vfunc1.type"}, !type !{i64 8, !"vfunc2.type"}, !vcall_visibility !{i64 2}
21
22; CHECK:      @vtableB = internal unnamed_addr constant { [2 x i8*] } { [2 x i8*] [
23; CHECK-SAME:   i8* bitcast (void ()* @vfunc1 to i8*),
24; CHECK-SAME:   i8* bitcast (void ()* @vfunc2 to i8*)
25; CHECK-SAME: ] }, align 8
26
27define internal void @vfunc1() {
28  ret void
29}
30
31define internal void @vfunc2() {
32  ret void
33}
34
35define void @main() {
36  %1 = ptrtoint { [2 x i8*] }* @vtableA to i64 ; to keep @vtableA alive
37  %2 = ptrtoint { [2 x i8*] }* @vtableB to i64 ; to keep @vtableB alive
38  %3 = tail call { i8*, i1 } @llvm.type.checked.load(i8* null, i32 0, metadata !"vfunc1.type")
39  %4 = tail call { i8*, i1 } @llvm.type.checked.load(i8* null, i32 0, metadata !"vfunc2.type")
40  ret void
41}
42
43!999 = !{i32 1, !"Virtual Function Elim", i32 1}
44!llvm.module.flags = !{!999}
45