1 ; RUN: opt -S -wholeprogramdevirt -pass-remarks=wholeprogramdevirt %s 2>&1 | FileCheck %s 2 3 target datalayout = "e-p:64:64" 4 target triple = "x86_64-unknown-linux-gnu" 5 6 ; CHECK: remark: <unknown>:0:0: devirtualized call 7 ; CHECK: remark: <unknown>:0:0: devirtualized call 8 ; CHECK: remark: <unknown>:0:0: devirtualized call 9 ; CHECK-NOT: devirtualized call 10 11 ; 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]+]] 12 @vt1 = constant [3 x i8*] [ 13 i8* bitcast (i1 (i8*)* @vf0i1 to i8*), 14 i8* bitcast (i1 (i8*)* @vf1i1 to i8*), 15 i8* bitcast (i32 (i8*)* @vf1i32 to i8*) 16 ], section "vt1sec", !type !0 17 18 ; 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]] 19 @vt2 = constant [3 x i8*] [ 20 i8* bitcast (i1 (i8*)* @vf1i1 to i8*), 21 i8* bitcast (i1 (i8*)* @vf0i1 to i8*), 22 i8* bitcast (i32 (i8*)* @vf2i32 to i8*) 23 ], !type !0 24 25 ; 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]] 26 @vt3 = constant [3 x i8*] [ 27 i8* bitcast (i1 (i8*)* @vf0i1 to i8*), 28 i8* bitcast (i1 (i8*)* @vf1i1 to i8*), 29 i8* bitcast (i32 (i8*)* @vf3i32 to i8*) 30 ], !type !0 31 32 ; 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]] 33 @vt4 = constant [3 x i8*] [ 34 i8* bitcast (i1 (i8*)* @vf1i1 to i8*), 35 i8* bitcast (i1 (i8*)* @vf0i1 to i8*), 36 i8* bitcast (i32 (i8*)* @vf4i32 to i8*) 37 ], !type !0 38 39 ; CHECK: @vt5 = {{.*}}, !type [[T0:![0-9]+]] 40 @vt5 = constant [3 x i8*] [ 41 i8* bitcast (void ()* @__cxa_pure_virtual to i8*), 42 i8* bitcast (void ()* @__cxa_pure_virtual to i8*), 43 i8* bitcast (void ()* @__cxa_pure_virtual to i8*) 44 ], !type !0 45 46 ; 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) 47 ; 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) 48 ; 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) 49 ; 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) 50 51 define i1 @vf0i1(i8* %this) readnone { 52 ret i1 0 53 } 54 55 define i1 @vf1i1(i8* %this) readnone { 56 ret i1 1 57 } 58 59 define i32 @vf1i32(i8* %this) readnone { 60 ret i32 1 61 } 62 63 define i32 @vf2i32(i8* %this) readnone { 64 ret i32 2 65 } 66 67 define i32 @vf3i32(i8* %this) readnone { 68 ret i32 3 69 } 70 71 define i32 @vf4i32(i8* %this) readnone { 72 ret i32 4 73 } 74 75 ; CHECK: define i1 @call1( 76 define i1 @call1(i8* %obj) { 77 %vtableptr = bitcast i8* %obj to [3 x i8*]** 78 %vtable = load [3 x i8*]*, [3 x i8*]** %vtableptr 79 ; CHECK: [[VT1:%[^ ]*]] = bitcast [3 x i8*]* {{.*}} to i8* 80 %vtablei8 = bitcast [3 x i8*]* %vtable to i8* 81 %pair = call {i8*, i1} @llvm.type.checked.load(i8* %vtablei8, i32 0, metadata !"typeid") 82 %fptr = extractvalue {i8*, i1} %pair, 0 83 %fptr_casted = bitcast i8* %fptr to i1 (i8*)* 84 ; CHECK: [[VTGEP1:%[^ ]*]] = getelementptr i8, i8* [[VT1]], i64 -5 85 ; CHECK: [[VTLOAD1:%[^ ]*]] = load i8, i8* [[VTGEP1]] 86 ; CHECK: [[VTAND1:%[^ ]*]] = and i8 [[VTLOAD1]], 2 87 ; CHECK: [[VTCMP1:%[^ ]*]] = icmp ne i8 [[VTAND1]], 0 88 %result = call i1 %fptr_casted(i8* %obj) 89 ; CHECK: [[AND1:%[^ ]*]] = and i1 [[VTCMP1]], true 90 %p = extractvalue {i8*, i1} %pair, 1 91 %and = and i1 %result, %p 92 ; CHECK: ret i1 [[AND1]] 93 ret i1 %and 94 } 95 96 ; CHECK: define i1 @call2( 97 define i1 @call2(i8* %obj) { 98 %vtableptr = bitcast i8* %obj to [3 x i8*]** 99 %vtable = load [3 x i8*]*, [3 x i8*]** %vtableptr 100 ; CHECK: [[VT2:%[^ ]*]] = bitcast [3 x i8*]* {{.*}} to i8* 101 %vtablei8 = bitcast [3 x i8*]* %vtable to i8* 102 %pair = call {i8*, i1} @llvm.type.checked.load(i8* %vtablei8, i32 8, metadata !"typeid") 103 %fptr = extractvalue {i8*, i1} %pair, 0 104 %fptr_casted = bitcast i8* %fptr to i1 (i8*)* 105 ; CHECK: [[VTGEP2:%[^ ]*]] = getelementptr i8, i8* [[VT2]], i64 -5 106 ; CHECK: [[VTLOAD2:%[^ ]*]] = load i8, i8* [[VTGEP2]] 107 ; CHECK: [[VTAND2:%[^ ]*]] = and i8 [[VTLOAD2]], 1 108 ; CHECK: [[VTCMP2:%[^ ]*]] = icmp ne i8 [[VTAND2]], 0 109 %result = call i1 %fptr_casted(i8* %obj) 110 ; CHECK: [[AND2:%[^ ]*]] = and i1 [[VTCMP2]], true 111 %p = extractvalue {i8*, i1} %pair, 1 112 %and = and i1 %result, %p 113 ; CHECK: ret i1 [[AND2]] 114 ret i1 %and 115 } 116 117 ; CHECK: define i32 @call3( 118 define i32 @call3(i8* %obj) { 119 %vtableptr = bitcast i8* %obj to [3 x i8*]** 120 %vtable = load [3 x i8*]*, [3 x i8*]** %vtableptr 121 ; CHECK: [[VT3:%[^ ]*]] = bitcast [3 x i8*]* {{.*}} to i8* 122 %vtablei8 = bitcast [3 x i8*]* %vtable to i8* 123 %pair = call {i8*, i1} @llvm.type.checked.load(i8* %vtablei8, i32 16, metadata !"typeid") 124 %fptr = extractvalue {i8*, i1} %pair, 0 125 %fptr_casted = bitcast i8* %fptr to i32 (i8*)* 126 ; CHECK: [[VTGEP3:%[^ ]*]] = getelementptr i8, i8* [[VT3]], i64 -4 127 ; CHECK: [[VTBC3:%[^ ]*]] = bitcast i8* [[VTGEP3]] to i32* 128 ; CHECK: [[VTLOAD3:%[^ ]*]] = load i32, i32* [[VTBC3]] 129 %result = call i32 %fptr_casted(i8* %obj) 130 ; CHECK: ret i32 [[VTLOAD3]] 131 ret i32 %result 132 } 133 134 declare {i8*, i1} @llvm.type.checked.load(i8*, i32, metadata) 135 declare void @llvm.assume(i1) 136 declare void @__cxa_pure_virtual() 137 138 ; CHECK: [[T8]] = !{i32 8, !"typeid"} 139 ; CHECK: [[T0]] = !{i32 0, !"typeid"} 140 141 !0 = !{i32 0, !"typeid"} 142
