1 ; RUN: opt -S -wholeprogramdevirt %s | FileCheck %s 2 3 ; Test that we correctly expand the llvm.type.checked.load intrinsic in cases 4 ; where we cannot devirtualize. 5 6 target datalayout = "e-p:64:64" 7 target triple = "x86_64-unknown-linux-gnu" 8 9 @vt1 = constant [1 x i8*] [i8* bitcast (void (i8*)* @vf1 to i8*)], !type !0 10 @vt2 = constant [1 x i8*] [i8* bitcast (void (i8*)* @vf2 to i8*)], !type !0 11 12 define void @vf1(i8* %this) { 13 ret void 14 } 15 16 define void @vf2(i8* %this) { 17 ret void 18 } 19 20 ; CHECK: define void @call 21 define void @call(i8* %obj) { 22 %vtableptr = bitcast i8* %obj to [1 x i8*]** 23 %vtable = load [1 x i8*]*, [1 x i8*]** %vtableptr 24 %vtablei8 = bitcast [1 x i8*]* %vtable to i8* 25 %pair = call {i8*, i1} @llvm.type.checked.load(i8* %vtablei8, i32 0, metadata !"typeid") 26 %p = extractvalue {i8*, i1} %pair, 1 27 ; CHECK: [[TT:%[^ ]*]] = call i1 @llvm.type.test(i8* [[VT:%[^,]*]], metadata !"typeid") 28 ; CHECK: br i1 [[TT]], 29 br i1 %p, label %cont, label %trap 30 31 cont: 32 ; CHECK: [[GEP:%[^ ]*]] = getelementptr i8, i8* [[VT]], i32 0 33 ; CHECK: [[BC:%[^ ]*]] = bitcast i8* [[GEP]] to i8** 34 ; CHECK: [[LOAD:%[^ ]*]] = load i8*, i8** [[BC]] 35 ; CHECK: [[FPC:%[^ ]*]] = bitcast i8* [[LOAD]] to void (i8*)* 36 ; CHECK: call void [[FPC]] 37 %fptr = extractvalue {i8*, i1} %pair, 0 38 %fptr_casted = bitcast i8* %fptr to void (i8*)* 39 call void %fptr_casted(i8* %obj) 40 ret void 41 42 trap: 43 call void @llvm.trap() 44 unreachable 45 } 46 47 ; CHECK: define { i8*, i1 } @ret 48 define {i8*, i1} @ret(i8* %vtablei8) { 49 ; CHECK: [[GEP2:%[^ ]*]] = getelementptr i8, i8* [[VT2:%[^,]*]], i32 1 50 ; CHECK: [[BC2:%[^ ]*]] = bitcast i8* [[GEP2]] to i8** 51 ; CHECK: [[LOAD2:%[^ ]*]] = load i8*, i8** [[BC2]] 52 ; CHECK: [[TT2:%[^ ]*]] = call i1 @llvm.type.test(i8* [[VT2]], metadata !"typeid") 53 ; CHECK: [[I1:%[^ ]*]] = insertvalue { i8*, i1 } undef, i8* [[LOAD2]], 0 54 ; CHECK: [[I2:%[^ ]*]] = insertvalue { i8*, i1 } %5, i1 [[TT2]], 1 55 %pair = call {i8*, i1} @llvm.type.checked.load(i8* %vtablei8, i32 1, metadata !"typeid") 56 ; CHECK: ret { i8*, i1 } [[I2]] 57 ret {i8*, i1} %pair 58 } 59 60 declare {i8*, i1} @llvm.type.checked.load(i8*, i32, metadata) 61 declare void @llvm.trap() 62 63 !0 = !{i32 0, !"typeid"} 64
