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1target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"2target triple = "x86_64-grtev4-linux-gnu"3 4%struct.B2 = type { %struct.A2 }5%struct.A2 = type { ptr }6%struct.B3 = type { %struct.A3 }7%struct.A3 = type { ptr }8 9@_ZTV1B2 = constant { [3 x ptr] } { [3 x ptr] [ptr undef, ptr undef, ptr undef] }, !type !010 11@_ZTV1B3 = constant { [3 x ptr] } { [3 x ptr] [ptr undef, ptr undef, ptr undef] }, !type !112 13define void @test2(ptr %b) {14entry:15 %vtable2 = load ptr, ptr %b16 %0 = tail call i1 @llvm.type.test(ptr %vtable2, metadata !"_ZTS1A2")17 br i1 %0, label %cont, label %trap18 19trap:20 tail call void @llvm.trap()21 unreachable22 23cont:24 ret void25}26 27define void @test1(ptr %b) {28entry:29 %vtable2 = load ptr, ptr %b30 %0 = tail call i1 @llvm.type.test(ptr %vtable2, metadata !"_ZTS1A3")31 br i1 %0, label %cont, label %trap32 33trap:34 tail call void @llvm.trap()35 unreachable36 37cont:38 ret void39}40 41@test3 = hidden unnamed_addr alias void (ptr), ptr @test142 43declare i1 @llvm.type.test(ptr, metadata)44declare void @llvm.trap()45 46!0 = !{i64 16, !"_ZTS1A2"}47!1 = !{i64 16, !"_ZTS1A3"}48