1 ; RUN: opt -S -wholeprogramdevirt %s | FileCheck %s 2 3 target datalayout = "e-p:64:64" 4 target triple = "x86_64-unknown-linux-gnu" 5 6 @vt1 = constant [1 x i8*] [i8* bitcast (void (i8*)* @vf to i8*)], !type !0 7 @vt2 = constant [1 x i8*] [i8* bitcast (void (i8*)* @vf to i8*)], !type !0 8 9 define void @vf(i8* %this) { 10 ret void 11 } 12 13 ; CHECK: define void @call 14 define void @call(i8* %obj) { 15 %vtableptr = bitcast i8* %obj to [1 x i8*]** 16 %vtable = load [1 x i8*]*, [1 x i8*]** %vtableptr 17 %vtablei8 = bitcast [1 x i8*]* %vtable to i8* 18 %p = call i1 @llvm.type.test(i8* %vtablei8, metadata !"typeid") 19 call void @llvm.assume(i1 %p) 20 %fptrptr = getelementptr [1 x i8*], [1 x i8*]* %vtable, i32 0, i32 0 21 %fptr = load i8*, i8** %fptrptr 22 %fptr_casted = bitcast i8* %fptr to void (i8*)* 23 ; CHECK: call void @vf( 24 call void %fptr_casted(i8* %obj) 25 ret void 26 } 27 28 declare i1 @llvm.type.test(i8*, metadata) 29 declare void @llvm.assume(i1) 30 31 !0 = !{i32 0, !"typeid"} 32
