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: virtual-const-prop: devirtualized a call to vf1i32 7 ; CHECK: remark: <unknown>:0:0: virtual-const-prop-1-bit: devirtualized a call to vf1i1 8 ; CHECK: remark: <unknown>:0:0: virtual-const-prop-1-bit: devirtualized a call to vf0i1 9 ; CHECK: remark: <unknown>:0:0: devirtualized vf0i1 10 ; CHECK: remark: <unknown>:0:0: devirtualized vf1i1 11 ; CHECK: remark: <unknown>:0:0: devirtualized vf1i32 12 ; CHECK: remark: <unknown>:0:0: devirtualized vf2i32 13 ; CHECK: remark: <unknown>:0:0: devirtualized vf3i32 14 ; CHECK: remark: <unknown>:0:0: devirtualized vf4i32 15 ; CHECK-NOT: devirtualized 16 17 ; 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]+]] 18 @vt1 = constant [3 x i8*] [ 19 i8* bitcast (i1 (i8*)* @vf0i1 to i8*), 20 i8* bitcast (i1 (i8*)* @vf1i1 to i8*), 21 i8* bitcast (i32 (i8*)* @vf1i32 to i8*) 22 ], section "vt1sec", !type !0 23 24 ; 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]] 25 @vt2 = constant [3 x i8*] [ 26 i8* bitcast (i1 (i8*)* @vf1i1 to i8*), 27 i8* bitcast (i1 (i8*)* @vf0i1 to i8*), 28 i8* bitcast (i32 (i8*)* @vf2i32 to i8*) 29 ], !type !0 30 31 ; 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]] 32 @vt3 = constant [3 x i8*] [ 33 i8* bitcast (i1 (i8*)* @vf0i1 to i8*), 34 i8* bitcast (i1 (i8*)* @vf1i1 to i8*), 35 i8* bitcast (i32 (i8*)* @vf3i32 to i8*) 36 ], !type !0 37 38 ; 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]] 39 @vt4 = constant [3 x i8*] [ 40 i8* bitcast (i1 (i8*)* @vf1i1 to i8*), 41 i8* bitcast (i1 (i8*)* @vf0i1 to i8*), 42 i8* bitcast (i32 (i8*)* @vf4i32 to i8*) 43 ], !type !0 44 45 ; CHECK: @vt5 = {{.*}}, !type [[T0:![0-9]+]] 46 @vt5 = constant [3 x i8*] [ 47 i8* bitcast (void ()* @__cxa_pure_virtual to i8*), 48 i8* bitcast (void ()* @__cxa_pure_virtual to i8*), 49 i8* bitcast (void ()* @__cxa_pure_virtual to i8*) 50 ], !type !0 51 52 ; 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) 53 ; 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) 54 ; 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) 55 ; 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) 56 57 define i1 @vf0i1(i8* %this) readnone { 58 ret i1 0 59 } 60 61 define i1 @vf1i1(i8* %this) readnone { 62 ret i1 1 63 } 64 65 define i32 @vf1i32(i8* %this) readnone { 66 ret i32 1 67 } 68 69 define i32 @vf2i32(i8* %this) readnone { 70 ret i32 2 71 } 72 73 define i32 @vf3i32(i8* %this) readnone { 74 ret i32 3 75 } 76 77 define i32 @vf4i32(i8* %this) readnone { 78 ret i32 4 79 } 80 81 ; CHECK: define i1 @call1( 82 define i1 @call1(i8* %obj) { 83 %vtableptr = bitcast i8* %obj to [3 x i8*]** 84 %vtable = load [3 x i8*]*, [3 x i8*]** %vtableptr 85 ; CHECK: [[VT1:%[^ ]*]] = bitcast [3 x i8*]* {{.*}} to i8* 86 %vtablei8 = bitcast [3 x i8*]* %vtable to i8* 87 %pair = call {i8*, i1} @llvm.type.checked.load(i8* %vtablei8, i32 0, metadata !"typeid") 88 %fptr = extractvalue {i8*, i1} %pair, 0 89 %fptr_casted = bitcast i8* %fptr to i1 (i8*)* 90 ; CHECK: [[VTGEP1:%[^ ]*]] = getelementptr i8, i8* [[VT1]], i32 -5 91 ; CHECK: [[VTLOAD1:%[^ ]*]] = load i8, i8* [[VTGEP1]] 92 ; CHECK: [[VTAND1:%[^ ]*]] = and i8 [[VTLOAD1]], 2 93 ; CHECK: [[VTCMP1:%[^ ]*]] = icmp ne i8 [[VTAND1]], 0 94 %result = call i1 %fptr_casted(i8* %obj) 95 ; CHECK: [[AND1:%[^ ]*]] = and i1 [[VTCMP1]], true 96 %p = extractvalue {i8*, i1} %pair, 1 97 %and = and i1 %result, %p 98 ; CHECK: ret i1 [[AND1]] 99 ret i1 %and 100 } 101 102 ; CHECK: define i1 @call2( 103 define i1 @call2(i8* %obj) { 104 %vtableptr = bitcast i8* %obj to [3 x i8*]** 105 %vtable = load [3 x i8*]*, [3 x i8*]** %vtableptr 106 ; CHECK: [[VT2:%[^ ]*]] = bitcast [3 x i8*]* {{.*}} to i8* 107 %vtablei8 = bitcast [3 x i8*]* %vtable to i8* 108 %pair = call {i8*, i1} @llvm.type.checked.load(i8* %vtablei8, i32 8, metadata !"typeid") 109 %fptr = extractvalue {i8*, i1} %pair, 0 110 %fptr_casted = bitcast i8* %fptr to i1 (i8*)* 111 ; CHECK: [[VTGEP2:%[^ ]*]] = getelementptr i8, i8* [[VT2]], i32 -5 112 ; CHECK: [[VTLOAD2:%[^ ]*]] = load i8, i8* [[VTGEP2]] 113 ; CHECK: [[VTAND2:%[^ ]*]] = and i8 [[VTLOAD2]], 1 114 ; CHECK: [[VTCMP2:%[^ ]*]] = icmp ne i8 [[VTAND2]], 0 115 %result = call i1 %fptr_casted(i8* %obj) 116 ; CHECK: [[AND2:%[^ ]*]] = and i1 [[VTCMP2]], true 117 %p = extractvalue {i8*, i1} %pair, 1 118 %and = and i1 %result, %p 119 ; CHECK: ret i1 [[AND2]] 120 ret i1 %and 121 } 122 123 ; CHECK: define i32 @call3( 124 define i32 @call3(i8* %obj) { 125 %vtableptr = bitcast i8* %obj to [3 x i8*]** 126 %vtable = load [3 x i8*]*, [3 x i8*]** %vtableptr 127 ; CHECK: [[VT3:%[^ ]*]] = bitcast [3 x i8*]* {{.*}} to i8* 128 %vtablei8 = bitcast [3 x i8*]* %vtable to i8* 129 %pair = call {i8*, i1} @llvm.type.checked.load(i8* %vtablei8, i32 16, metadata !"typeid") 130 %fptr = extractvalue {i8*, i1} %pair, 0 131 %fptr_casted = bitcast i8* %fptr to i32 (i8*)* 132 ; CHECK: [[VTGEP3:%[^ ]*]] = getelementptr i8, i8* [[VT3]], i32 -4 133 ; CHECK: [[VTBC3:%[^ ]*]] = bitcast i8* [[VTGEP3]] to i32* 134 ; CHECK: [[VTLOAD3:%[^ ]*]] = load i32, i32* [[VTBC3]] 135 %result = call i32 %fptr_casted(i8* %obj) 136 ; CHECK: ret i32 [[VTLOAD3]] 137 ret i32 %result 138 } 139 140 declare {i8*, i1} @llvm.type.checked.load(i8*, i32, metadata) 141 declare void @llvm.assume(i1) 142 declare void @__cxa_pure_virtual() 143 144 ; CHECK: [[T8]] = !{i32 8, !"typeid"} 145 ; CHECK: [[T0]] = !{i32 0, !"typeid"} 146 147 !0 = !{i32 0, !"typeid"} 148
