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 { [8 x i8], [3 x i8*], [0 x i8] } { [8 x i8] c"\00\00\00\01\01\00\00\00", [3 x i8*] [i8* bitcast (i1 (i8*)* @vf0i1 to i8*), i8* bitcast (i1 (i8*)* @vf1i1 to i8*), i8* bitcast (i32 (i8*)* @vf1i32 to i8*)], [0 x i8] zeroinitializer }, section "vt1sec", !type [[T8:![0-9]+]] 7 @vt1 = constant [3 x i8*] [ 8 i8* bitcast (i1 (i8*)* @vf0i1 to i8*), 9 i8* bitcast (i1 (i8*)* @vf1i1 to i8*), 10 i8* bitcast (i32 (i8*)* @vf1i32 to i8*) 11 ], section "vt1sec", !type !0 12 13 ; CHECK: [[VT2DATA:@[^ ]*]] = private constant { [8 x i8], [3 x i8*], [0 x i8] } { [8 x i8] c"\00\00\00\02\02\00\00\00", [3 x i8*] [i8* bitcast (i1 (i8*)* @vf1i1 to i8*), i8* bitcast (i1 (i8*)* @vf0i1 to i8*), i8* bitcast (i32 (i8*)* @vf2i32 to i8*)], [0 x i8] zeroinitializer }, !type [[T8]] 14 @vt2 = constant [3 x i8*] [ 15 i8* bitcast (i1 (i8*)* @vf1i1 to i8*), 16 i8* bitcast (i1 (i8*)* @vf0i1 to i8*), 17 i8* bitcast (i32 (i8*)* @vf2i32 to i8*) 18 ], !type !0 19 20 ; CHECK: [[VT3DATA:@[^ ]*]] = private constant { [8 x i8], [3 x i8*], [0 x i8] } { [8 x i8] c"\00\00\00\01\03\00\00\00", [3 x i8*] [i8* bitcast (i1 (i8*)* @vf0i1 to i8*), i8* bitcast (i1 (i8*)* @vf1i1 to i8*), i8* bitcast (i32 (i8*)* @vf3i32 to i8*)], [0 x i8] zeroinitializer }, !type [[T8]] 21 @vt3 = constant [3 x i8*] [ 22 i8* bitcast (i1 (i8*)* @vf0i1 to i8*), 23 i8* bitcast (i1 (i8*)* @vf1i1 to i8*), 24 i8* bitcast (i32 (i8*)* @vf3i32 to i8*) 25 ], !type !0 26 27 ; CHECK: [[VT4DATA:@[^ ]*]] = private constant { [8 x i8], [3 x i8*], [0 x i8] } { [8 x i8] c"\00\00\00\02\04\00\00\00", [3 x i8*] [i8* bitcast (i1 (i8*)* @vf1i1 to i8*), i8* bitcast (i1 (i8*)* @vf0i1 to i8*), i8* bitcast (i32 (i8*)* @vf4i32 to i8*)], [0 x i8] zeroinitializer }, !type [[T8]] 28 @vt4 = constant [3 x i8*] [ 29 i8* bitcast (i1 (i8*)* @vf1i1 to i8*), 30 i8* bitcast (i1 (i8*)* @vf0i1 to i8*), 31 i8* bitcast (i32 (i8*)* @vf4i32 to i8*) 32 ], !type !0 33 34 ; CHECK: @vt5 = {{.*}}, !type [[T0:![0-9]+]] 35 @vt5 = constant [3 x i8*] [ 36 i8* bitcast (void ()* @__cxa_pure_virtual to i8*), 37 i8* bitcast (void ()* @__cxa_pure_virtual to i8*), 38 i8* bitcast (void ()* @__cxa_pure_virtual to i8*) 39 ], !type !0 40 41 ; CHECK: @vt1 = alias [3 x i8*], getelementptr inbounds ({ [8 x i8], [3 x i8*], [0 x i8] }, { [8 x i8], [3 x i8*], [0 x i8] }* [[VT1DATA]], i32 0, i32 1) 42 ; CHECK: @vt2 = alias [3 x i8*], getelementptr inbounds ({ [8 x i8], [3 x i8*], [0 x i8] }, { [8 x i8], [3 x i8*], [0 x i8] }* [[VT2DATA]], i32 0, i32 1) 43 ; CHECK: @vt3 = alias [3 x i8*], getelementptr inbounds ({ [8 x i8], [3 x i8*], [0 x i8] }, { [8 x i8], [3 x i8*], [0 x i8] }* [[VT3DATA]], i32 0, i32 1) 44 ; CHECK: @vt4 = alias [3 x i8*], getelementptr inbounds ({ [8 x i8], [3 x i8*], [0 x i8] }, { [8 x i8], [3 x i8*], [0 x i8] }* [[VT4DATA]], i32 0, i32 1) 45 46 define i1 @vf0i1(i8* %this) readnone { 47 ret i1 0 48 } 49 50 define i1 @vf1i1(i8* %this) readnone { 51 ret i1 1 52 } 53 54 define i32 @vf1i32(i8* %this) readnone { 55 ret i32 1 56 } 57 58 define i32 @vf2i32(i8* %this) readnone { 59 ret i32 2 60 } 61 62 define i32 @vf3i32(i8* %this) readnone { 63 ret i32 3 64 } 65 66 define i32 @vf4i32(i8* %this) readnone { 67 ret i32 4 68 } 69 70 ; CHECK: define i1 @call1( 71 define i1 @call1(i8* %obj) { 72 %vtableptr = bitcast i8* %obj to [3 x i8*]** 73 %vtable = load [3 x i8*]*, [3 x i8*]** %vtableptr 74 ; CHECK: {{.*}} = bitcast [3 x i8*]* {{.*}} to i8* 75 ; CHECK: [[VT1:%[^ ]*]] = bitcast [3 x i8*]* {{.*}} to i8* 76 %vtablei8 = bitcast [3 x i8*]* %vtable to i8* 77 %p = call i1 @llvm.type.test(i8* %vtablei8, metadata !"typeid") 78 call void @llvm.assume(i1 %p) 79 %fptrptr = getelementptr [3 x i8*], [3 x i8*]* %vtable, i32 0, i32 0 80 %fptr = load i8*, i8** %fptrptr 81 %fptr_casted = bitcast i8* %fptr to i1 (i8*)* 82 ; CHECK: [[VTGEP1:%[^ ]*]] = getelementptr i8, i8* [[VT1]], i32 -5 83 ; CHECK: [[VTLOAD1:%[^ ]*]] = load i8, i8* [[VTGEP1]] 84 ; CHECK: [[VTAND1:%[^ ]*]] = and i8 [[VTLOAD1]], 2 85 ; CHECK: [[VTCMP1:%[^ ]*]] = icmp ne i8 [[VTAND1]], 0 86 %result = call i1 %fptr_casted(i8* %obj) 87 ; CHECK: ret i1 [[VTCMP1]] 88 ret i1 %result 89 } 90 91 ; CHECK: define i1 @call2( 92 define i1 @call2(i8* %obj) { 93 %vtableptr = bitcast i8* %obj to [3 x i8*]** 94 %vtable = load [3 x i8*]*, [3 x i8*]** %vtableptr 95 ; CHECK: {{.*}} = bitcast [3 x i8*]* {{.*}} to i8* 96 ; CHECK: [[VT2:%[^ ]*]] = bitcast [3 x i8*]* {{.*}} to i8* 97 %vtablei8 = bitcast [3 x i8*]* %vtable to i8* 98 %p = call i1 @llvm.type.test(i8* %vtablei8, metadata !"typeid") 99 call void @llvm.assume(i1 %p) 100 %fptrptr = getelementptr [3 x i8*], [3 x i8*]* %vtable, i32 0, i32 1 101 %fptr = load i8*, i8** %fptrptr 102 %fptr_casted = bitcast i8* %fptr to i1 (i8*)* 103 ; CHECK: [[VTGEP2:%[^ ]*]] = getelementptr i8, i8* [[VT2]], i32 -5 104 ; CHECK: [[VTLOAD2:%[^ ]*]] = load i8, i8* [[VTGEP2]] 105 ; CHECK: [[VTAND2:%[^ ]*]] = and i8 [[VTLOAD2]], 1 106 ; CHECK: [[VTCMP2:%[^ ]*]] = icmp ne i8 [[VTAND2]], 0 107 %result = call i1 %fptr_casted(i8* %obj) 108 ; CHECK: ret i1 [[VTCMP2]] 109 ret i1 %result 110 } 111 112 ; CHECK: define i32 @call3( 113 define i32 @call3(i8* %obj) { 114 %vtableptr = bitcast i8* %obj to [3 x i8*]** 115 %vtable = load [3 x i8*]*, [3 x i8*]** %vtableptr 116 ; CHECK: {{.*}} = bitcast [3 x i8*]* {{.*}} to i8* 117 ; CHECK: [[VT3:%[^ ]*]] = bitcast [3 x i8*]* {{.*}} to i8* 118 %vtablei8 = bitcast [3 x i8*]* %vtable to i8* 119 %p = call i1 @llvm.type.test(i8* %vtablei8, metadata !"typeid") 120 call void @llvm.assume(i1 %p) 121 %fptrptr = getelementptr [3 x i8*], [3 x i8*]* %vtable, i32 0, i32 2 122 %fptr = load i8*, i8** %fptrptr 123 %fptr_casted = bitcast i8* %fptr to i32 (i8*)* 124 ; CHECK: [[VTGEP3:%[^ ]*]] = getelementptr i8, i8* [[VT3]], i32 -4 125 ; CHECK: [[VTBC3:%[^ ]*]] = bitcast i8* [[VTGEP3]] to i32* 126 ; CHECK: [[VTLOAD3:%[^ ]*]] = load i32, i32* [[VTBC3]] 127 %result = call i32 %fptr_casted(i8* %obj) 128 ; CHECK: ret i32 [[VTLOAD3]] 129 ret i32 %result 130 } 131 132 declare i1 @llvm.type.test(i8*, metadata) 133 declare void @llvm.assume(i1) 134 declare void @__cxa_pure_virtual() 135 136 ; CHECK: [[T8]] = !{i32 8, !"typeid"} 137 ; CHECK: [[T0]] = !{i32 0, !"typeid"} 138 139 !0 = !{i32 0, !"typeid"} 140
