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.A = type { i32 (...)** } 5%struct.B = type { %struct.A } 6 7@_ZTV1B = constant { [4 x i8*] } { [4 x i8*] [i8* null, i8* undef, i8* bitcast (i32 (%struct.B*, i32)* @_ZN1B1fEi to i8*), i8* bitcast (i32 (%struct.A*, i32)* @_ZN1A1nEi to i8*)] }, !type !0, !type !1 8 9define i32 @_ZN1B1fEi(%struct.B* %this, i32 %a) #0 { 10 ret i32 0; 11} 12 13define internal i32 @_ZN1A1nEi(%struct.A* %this, i32 %a) #0 { 14 ret i32 0; 15} 16 17define i32 @test2(%struct.B* %obj, i32 %a) { 18entry: 19 %0 = bitcast %struct.B* %obj to i8*** 20 %vtable2 = load i8**, i8*** %0 21 %1 = bitcast i8** %vtable2 to i8* 22 %p2 = call i1 @llvm.type.test(i8* %1, metadata !"_ZTS1B") 23 call void @llvm.assume(i1 %p2) 24 25 %fptrptr = getelementptr i8*, i8** %vtable2, i32 1 26 %2 = bitcast i8** %fptrptr to i32 (%struct.B*, i32)** 27 %fptr33 = load i32 (%struct.B*, i32)*, i32 (%struct.B*, i32)** %2, align 8 28 29 %call4 = tail call i32 %fptr33(%struct.B* nonnull %obj, i32 %a) 30 ret i32 %call4 31} 32 33attributes #0 = { noinline optnone } 34 35declare i1 @llvm.type.test(i8*, metadata) 36declare void @llvm.assume(i1) 37 38!0 = !{i64 16, !"_ZTS1A"} 39!1 = !{i64 16, !"_ZTS1B"} 40