1; RUN: opt -S -wholeprogramdevirt %s | FileCheck %s 2 3target datalayout = "e-p:64:64" 4target triple = "x86_64-unknown-linux-gnu" 5 6; CHECK: [[VT1DATA:@[^ ]*]] = private constant { [0 x i8], [4 x i8*], [8 x i8] } { [0 x i8] zeroinitializer, [4 x i8*] [i8* null, i8* bitcast (i1 (i8*)* @vf0i1 to i8*), i8* bitcast (i1 (i8*)* @vf1i1 to i8*), i8* bitcast (i32 (i8*)* @vf1i32 to i8*)], [8 x i8] c"\01\00\00\00\01\00\00\00" }, !type [[T8:![0-9]+]] 7@vt1 = constant [4 x i8*] [ 8i8* null, 9i8* bitcast (i1 (i8*)* @vf0i1 to i8*), 10i8* bitcast (i1 (i8*)* @vf1i1 to i8*), 11i8* bitcast (i32 (i8*)* @vf1i32 to i8*) 12], !type !1 13 14; CHECK: [[VT2DATA:@[^ ]*]] = private constant { [0 x i8], [3 x i8*], [8 x i8] } { [0 x i8] zeroinitializer, [3 x i8*] [i8* bitcast (i1 (i8*)* @vf1i1 to i8*), i8* bitcast (i1 (i8*)* @vf0i1 to i8*), i8* bitcast (i32 (i8*)* @vf2i32 to i8*)], [8 x i8] c"\02\00\00\00\02\00\00\00" }, !type [[T0:![0-9]+]] 15@vt2 = constant [3 x i8*] [ 16i8* bitcast (i1 (i8*)* @vf1i1 to i8*), 17i8* bitcast (i1 (i8*)* @vf0i1 to i8*), 18i8* bitcast (i32 (i8*)* @vf2i32 to i8*) 19], !type !0 20 21; CHECK: [[VT3DATA:@[^ ]*]] = private constant { [0 x i8], [4 x i8*], [8 x i8] } { [0 x i8] zeroinitializer, [4 x i8*] [i8* null, i8* bitcast (i1 (i8*)* @vf0i1 to i8*), i8* bitcast (i1 (i8*)* @vf1i1 to i8*), i8* bitcast (i32 (i8*)* @vf3i32 to i8*)], [8 x i8] c"\03\00\00\00\01\00\00\00" }, !type [[T8]] 22@vt3 = constant [4 x i8*] [ 23i8* null, 24i8* bitcast (i1 (i8*)* @vf0i1 to i8*), 25i8* bitcast (i1 (i8*)* @vf1i1 to i8*), 26i8* bitcast (i32 (i8*)* @vf3i32 to i8*) 27], !type !1 28 29; CHECK: [[VT4DATA:@[^ ]*]] = private constant { [0 x i8], [3 x i8*], [8 x i8] } { [0 x i8] zeroinitializer, [3 x i8*] [i8* bitcast (i1 (i8*)* @vf1i1 to i8*), i8* bitcast (i1 (i8*)* @vf0i1 to i8*), i8* bitcast (i32 (i8*)* @vf4i32 to i8*)], [8 x i8] c"\04\00\00\00\02\00\00\00" }, !type [[T0]] 30@vt4 = constant [3 x i8*] [ 31i8* bitcast (i1 (i8*)* @vf1i1 to i8*), 32i8* bitcast (i1 (i8*)* @vf0i1 to i8*), 33i8* bitcast (i32 (i8*)* @vf4i32 to i8*) 34], !type !0 35 36; CHECK: @vt1 = alias [4 x i8*], getelementptr inbounds ({ [0 x i8], [4 x i8*], [8 x i8] }, { [0 x i8], [4 x i8*], [8 x i8] }* [[VT1DATA]], i32 0, i32 1) 37; CHECK: @vt2 = alias [3 x i8*], getelementptr inbounds ({ [0 x i8], [3 x i8*], [8 x i8] }, { [0 x i8], [3 x i8*], [8 x i8] }* [[VT2DATA]], i32 0, i32 1) 38; CHECK: @vt3 = alias [4 x i8*], getelementptr inbounds ({ [0 x i8], [4 x i8*], [8 x i8] }, { [0 x i8], [4 x i8*], [8 x i8] }* [[VT3DATA]], i32 0, i32 1) 39; CHECK: @vt4 = alias [3 x i8*], getelementptr inbounds ({ [0 x i8], [3 x i8*], [8 x i8] }, { [0 x i8], [3 x i8*], [8 x i8] }* [[VT4DATA]], i32 0, i32 1) 40 41define i1 @vf0i1(i8* %this) readnone { 42 ret i1 0 43} 44 45define i1 @vf1i1(i8* %this) readnone { 46 ret i1 1 47} 48 49define i32 @vf1i32(i8* %this) readnone { 50 ret i32 1 51} 52 53define i32 @vf2i32(i8* %this) readnone { 54 ret i32 2 55} 56 57define i32 @vf3i32(i8* %this) readnone { 58 ret i32 3 59} 60 61define i32 @vf4i32(i8* %this) readnone { 62 ret i32 4 63} 64 65; CHECK: define i1 @call1( 66define i1 @call1(i8* %obj) { 67 %vtableptr = bitcast i8* %obj to [3 x i8*]** 68 %vtable = load [3 x i8*]*, [3 x i8*]** %vtableptr 69 ; CHECK: [[VT1:%[^ ]*]] = bitcast [3 x i8*]* {{.*}} to i8* 70 %vtablei8 = bitcast [3 x i8*]* %vtable to i8* 71 %p = call i1 @llvm.type.test(i8* %vtablei8, metadata !"typeid") 72 call void @llvm.assume(i1 %p) 73 %fptrptr = getelementptr [3 x i8*], [3 x i8*]* %vtable, i32 0, i32 0 74 %fptr = load i8*, i8** %fptrptr 75 %fptr_casted = bitcast i8* %fptr to i1 (i8*)* 76 ; CHECK: [[VTGEP1:%[^ ]*]] = getelementptr i8, i8* [[VT1]], i64 28 77 ; CHECK: [[VTLOAD1:%[^ ]*]] = load i8, i8* [[VTGEP1]] 78 ; CHECK: [[VTAND1:%[^ ]*]] = and i8 [[VTLOAD1]], 2 79 ; CHECK: [[VTCMP1:%[^ ]*]] = icmp ne i8 [[VTAND1]], 0 80 %result = call i1 %fptr_casted(i8* %obj) 81 ; CHECK: ret i1 [[VTCMP1]] 82 ret i1 %result 83} 84 85; CHECK: define i1 @call2( 86define i1 @call2(i8* %obj) { 87 %vtableptr = bitcast i8* %obj to [3 x i8*]** 88 %vtable = load [3 x i8*]*, [3 x i8*]** %vtableptr 89 ; CHECK: [[VT2:%[^ ]*]] = bitcast [3 x i8*]* {{.*}} to i8* 90 %vtablei8 = bitcast [3 x i8*]* %vtable to i8* 91 %p = call i1 @llvm.type.test(i8* %vtablei8, metadata !"typeid") 92 call void @llvm.assume(i1 %p) 93 %fptrptr = getelementptr [3 x i8*], [3 x i8*]* %vtable, i32 0, i32 1 94 %fptr = load i8*, i8** %fptrptr 95 %fptr_casted = bitcast i8* %fptr to i1 (i8*)* 96 ; CHECK: [[VTGEP2:%[^ ]*]] = getelementptr i8, i8* [[VT2]], i64 28 97 ; CHECK: [[VTLOAD2:%[^ ]*]] = load i8, i8* [[VTGEP2]] 98 ; CHECK: [[VTAND2:%[^ ]*]] = and i8 [[VTLOAD2]], 1 99 ; CHECK: [[VTCMP2:%[^ ]*]] = icmp ne i8 [[VTAND2]], 0 100 %result = call i1 %fptr_casted(i8* %obj) 101 ; CHECK: ret i1 [[VTCMP2]] 102 ret i1 %result 103} 104 105; CHECK: define i32 @call3( 106define i32 @call3(i8* %obj) { 107 %vtableptr = bitcast i8* %obj to [3 x i8*]** 108 %vtable = load [3 x i8*]*, [3 x i8*]** %vtableptr 109 ; CHECK: [[VT3:%[^ ]*]] = bitcast [3 x i8*]* {{.*}} to i8* 110 %vtablei8 = bitcast [3 x i8*]* %vtable to i8* 111 %p = call i1 @llvm.type.test(i8* %vtablei8, metadata !"typeid") 112 call void @llvm.assume(i1 %p) 113 %fptrptr = getelementptr [3 x i8*], [3 x i8*]* %vtable, i32 0, i32 2 114 %fptr = load i8*, i8** %fptrptr 115 %fptr_casted = bitcast i8* %fptr to i32 (i8*)* 116 ; CHECK: [[VTGEP3:%[^ ]*]] = getelementptr i8, i8* [[VT3]], i64 24 117 ; CHECK: [[VTBC3:%[^ ]*]] = bitcast i8* [[VTGEP3]] to i32* 118 ; CHECK: [[VTLOAD3:%[^ ]*]] = load i32, i32* [[VTBC3]] 119 %result = call i32 %fptr_casted(i8* %obj) 120 ; CHECK: ret i32 [[VTLOAD3]] 121 ret i32 %result 122} 123 124declare i1 @llvm.type.test(i8*, metadata) 125declare void @llvm.assume(i1) 126 127; CHECK: [[T8]] = !{i32 8, !"typeid"} 128; CHECK: [[T0]] = !{i32 0, !"typeid"} 129 130!0 = !{i32 0, !"typeid"} 131!1 = !{i32 8, !"typeid"} 132