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 ; 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*] [ 8 i8* null, 9 i8* bitcast (i1 (i8*)* @vf0i1 to i8*), 10 i8* bitcast (i1 (i8*)* @vf1i1 to i8*), 11 i8* 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*] [ 16 i8* bitcast (i1 (i8*)* @vf1i1 to i8*), 17 i8* bitcast (i1 (i8*)* @vf0i1 to i8*), 18 i8* 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*] [ 23 i8* null, 24 i8* bitcast (i1 (i8*)* @vf0i1 to i8*), 25 i8* bitcast (i1 (i8*)* @vf1i1 to i8*), 26 i8* 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*] [ 31 i8* bitcast (i1 (i8*)* @vf1i1 to i8*), 32 i8* bitcast (i1 (i8*)* @vf0i1 to i8*), 33 i8* 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 41 define i1 @vf0i1(i8* %this) readnone { 42 ret i1 0 43 } 44 45 define i1 @vf1i1(i8* %this) readnone { 46 ret i1 1 47 } 48 49 define i32 @vf1i32(i8* %this) readnone { 50 ret i32 1 51 } 52 53 define i32 @vf2i32(i8* %this) readnone { 54 ret i32 2 55 } 56 57 define i32 @vf3i32(i8* %this) readnone { 58 ret i32 3 59 } 60 61 define i32 @vf4i32(i8* %this) readnone { 62 ret i32 4 63 } 64 65 ; CHECK: define i1 @call1( 66 define 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: {{.*}} = bitcast [3 x i8*]* {{.*}} to i8* 70 ; CHECK: [[VT1:%[^ ]*]] = bitcast [3 x i8*]* {{.*}} to i8* 71 %vtablei8 = bitcast [3 x i8*]* %vtable to i8* 72 %p = call i1 @llvm.type.test(i8* %vtablei8, metadata !"typeid") 73 call void @llvm.assume(i1 %p) 74 %fptrptr = getelementptr [3 x i8*], [3 x i8*]* %vtable, i32 0, i32 0 75 %fptr = load i8*, i8** %fptrptr 76 %fptr_casted = bitcast i8* %fptr to i1 (i8*)* 77 ; CHECK: [[VTGEP1:%[^ ]*]] = getelementptr i8, i8* [[VT1]], i32 28 78 ; CHECK: [[VTLOAD1:%[^ ]*]] = load i8, i8* [[VTGEP1]] 79 ; CHECK: [[VTAND1:%[^ ]*]] = and i8 [[VTLOAD1]], 2 80 ; CHECK: [[VTCMP1:%[^ ]*]] = icmp ne i8 [[VTAND1]], 0 81 %result = call i1 %fptr_casted(i8* %obj) 82 ; CHECK: ret i1 [[VTCMP1]] 83 ret i1 %result 84 } 85 86 ; CHECK: define i1 @call2( 87 define i1 @call2(i8* %obj) { 88 %vtableptr = bitcast i8* %obj to [3 x i8*]** 89 %vtable = load [3 x i8*]*, [3 x i8*]** %vtableptr 90 ; CHECK: {{.*}} = bitcast [3 x i8*]* {{.*}} to i8* 91 ; CHECK: [[VT2:%[^ ]*]] = bitcast [3 x i8*]* {{.*}} to i8* 92 %vtablei8 = bitcast [3 x i8*]* %vtable to i8* 93 %p = call i1 @llvm.type.test(i8* %vtablei8, metadata !"typeid") 94 call void @llvm.assume(i1 %p) 95 %fptrptr = getelementptr [3 x i8*], [3 x i8*]* %vtable, i32 0, i32 1 96 %fptr = load i8*, i8** %fptrptr 97 %fptr_casted = bitcast i8* %fptr to i1 (i8*)* 98 ; CHECK: [[VTGEP2:%[^ ]*]] = getelementptr i8, i8* [[VT2]], i32 28 99 ; CHECK: [[VTLOAD2:%[^ ]*]] = load i8, i8* [[VTGEP2]] 100 ; CHECK: [[VTAND2:%[^ ]*]] = and i8 [[VTLOAD2]], 1 101 ; CHECK: [[VTCMP2:%[^ ]*]] = icmp ne i8 [[VTAND2]], 0 102 %result = call i1 %fptr_casted(i8* %obj) 103 ; CHECK: ret i1 [[VTCMP2]] 104 ret i1 %result 105 } 106 107 ; CHECK: define i32 @call3( 108 define i32 @call3(i8* %obj) { 109 %vtableptr = bitcast i8* %obj to [3 x i8*]** 110 %vtable = load [3 x i8*]*, [3 x i8*]** %vtableptr 111 ; CHECK: {{.*}} = bitcast [3 x i8*]* {{.*}} to i8* 112 ; CHECK: [[VT3:%[^ ]*]] = bitcast [3 x i8*]* {{.*}} to i8* 113 %vtablei8 = bitcast [3 x i8*]* %vtable to i8* 114 %p = call i1 @llvm.type.test(i8* %vtablei8, metadata !"typeid") 115 call void @llvm.assume(i1 %p) 116 %fptrptr = getelementptr [3 x i8*], [3 x i8*]* %vtable, i32 0, i32 2 117 %fptr = load i8*, i8** %fptrptr 118 %fptr_casted = bitcast i8* %fptr to i32 (i8*)* 119 ; CHECK: [[VTGEP3:%[^ ]*]] = getelementptr i8, i8* [[VT3]], i32 24 120 ; CHECK: [[VTBC3:%[^ ]*]] = bitcast i8* [[VTGEP3]] to i32* 121 ; CHECK: [[VTLOAD3:%[^ ]*]] = load i32, i32* [[VTBC3]] 122 %result = call i32 %fptr_casted(i8* %obj) 123 ; CHECK: ret i32 [[VTLOAD3]] 124 ret i32 %result 125 } 126 127 declare i1 @llvm.type.test(i8*, metadata) 128 declare void @llvm.assume(i1) 129 130 ; CHECK: [[T8]] = !{i32 8, !"typeid"} 131 ; CHECK: [[T0]] = !{i32 0, !"typeid"} 132 133 !0 = !{i32 0, !"typeid"} 134 !1 = !{i32 8, !"typeid"} 135
