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