1; RUN: opt -instcombine -S < %s | FileCheck %s 2 3target datalayout = "e-i64:64-f80:128-n8:16:32:64" 4target triple = "x86_64-unknown-linux-gnu" 5 6%A__vtbl = type { i8*, i32 (%A*)* } 7%A = type { %A__vtbl* } 8%B = type { i8*, i64 } 9 10@A__vtblZ = constant %A__vtbl { i8* null, i32 (%A*)* @A.foo } 11 12declare i32 @A.foo(%A* nocapture %this) 13 14define void @storeA(%A* %a.ptr) { 15; CHECK-LABEL: storeA 16; CHECK-NEXT: [[GEP:%[a-z0-9\.]+]] = getelementptr inbounds %A, %A* %a.ptr, i64 0, i32 0 17; CHECK-NEXT: store %A__vtbl* @A__vtblZ, %A__vtbl** [[GEP]], align 8 18; CHECK-NEXT: ret void 19 store %A { %A__vtbl* @A__vtblZ }, %A* %a.ptr, align 8 20 ret void 21} 22 23define void @storeB(%B* %b.ptr) { 24; CHECK-LABEL: storeB 25; CHECK-NEXT: [[GEP1:%[a-z0-9\.]+]] = getelementptr inbounds %B, %B* %b.ptr, i64 0, i32 0 26; CHECK-NEXT: store i8* null, i8** [[GEP1]], align 8 27; CHECK-NEXT: [[GEP2:%[a-z0-9\.]+]] = getelementptr inbounds %B, %B* %b.ptr, i64 0, i32 1 28; CHECK-NEXT: store i64 42, i64* [[GEP2]], align 8 29; CHECK-NEXT: ret void 30 store %B { i8* null, i64 42 }, %B* %b.ptr, align 8 31 ret void 32} 33 34define void @storeStructOfA({ %A }* %sa.ptr) { 35; CHECK-LABEL: storeStructOfA 36; CHECK-NEXT: [[GEP:%[a-z0-9\.]+]] = getelementptr inbounds { %A }, { %A }* %sa.ptr, i64 0, i32 0, i32 0 37; CHECK-NEXT: store %A__vtbl* @A__vtblZ, %A__vtbl** [[GEP]], align 8 38; CHECK-NEXT: ret void 39 store { %A } { %A { %A__vtbl* @A__vtblZ } }, { %A }* %sa.ptr, align 8 40 ret void 41} 42 43define void @storeArrayOfA([1 x %A]* %aa.ptr) { 44; CHECK-LABEL: storeArrayOfA 45; CHECK-NEXT: [[GEP:%[a-z0-9\.]+]] = getelementptr inbounds [1 x %A], [1 x %A]* %aa.ptr, i64 0, i64 0, i32 0 46; CHECK-NEXT: store %A__vtbl* @A__vtblZ, %A__vtbl** [[GEP]], align 8 47; CHECK-NEXT: ret void 48 store [1 x %A] [%A { %A__vtbl* @A__vtblZ }], [1 x %A]* %aa.ptr, align 8 49 ret void 50} 51 52define void @storeStructOfArrayOfA({ [1 x %A] }* %saa.ptr) { 53; CHECK-LABEL: storeStructOfArrayOfA 54; CHECK-NEXT: [[GEP:%[a-z0-9\.]+]] = getelementptr inbounds { [1 x %A] }, { [1 x %A] }* %saa.ptr, i64 0, i32 0, i64 0, i32 0 55; CHECK-NEXT: store %A__vtbl* @A__vtblZ, %A__vtbl** [[GEP]], align 8 56; CHECK-NEXT: ret void 57 store { [1 x %A] } { [1 x %A] [%A { %A__vtbl* @A__vtblZ }] }, { [1 x %A] }* %saa.ptr, align 8 58 ret void 59} 60 61define void @storeArrayOfB([2 x %B]* %ab.ptr, [2 x %B] %ab) { 62; CHECK-LABEL: storeArrayOfB 63; CHECK-NEXT: [[EVB0:%[a-z0-9\.]+]] = extractvalue [2 x %B] %ab, 0 64; CHECK-NEXT: [[GEP0:%[a-z0-9\.]+]] = getelementptr inbounds [2 x %B], [2 x %B]* %ab.ptr, i64 0, i64 0, i32 0 65; CHECK-NEXT: [[EV0:%[a-z0-9\.]+]] = extractvalue %B [[EVB0]], 0 66; CHECK-NEXT: store i8* [[EV0]], i8** [[GEP0]], align 8 67; CHECK-NEXT: [[GEP1:%[a-z0-9\.]+]] = getelementptr inbounds [2 x %B], [2 x %B]* %ab.ptr, i64 0, i64 0, i32 1 68; CHECK-NEXT: [[EV1:%[a-z0-9\.]+]] = extractvalue %B [[EVB0]], 1 69; CHECK-NEXT: store i64 [[EV1]], i64* [[GEP1]], align 8 70; CHECK-NEXT: [[EVB1:%[a-z0-9\.]+]] = extractvalue [2 x %B] %ab, 1 71; CHECK-NEXT: [[GEP2:%[a-z0-9\.]+]] = getelementptr inbounds [2 x %B], [2 x %B]* %ab.ptr, i64 0, i64 1, i32 0 72; CHECK-NEXT: [[EV2:%[a-z0-9\.]+]] = extractvalue %B [[EVB1]], 0 73; CHECK-NEXT: store i8* [[EV2]], i8** [[GEP2]], align 8 74; CHECK-NEXT: [[GEP3:%[a-z0-9\.]+]] = getelementptr inbounds [2 x %B], [2 x %B]* %ab.ptr, i64 0, i64 1, i32 1 75; CHECK-NEXT: [[EV3:%[a-z0-9\.]+]] = extractvalue %B [[EVB1]], 1 76; CHECK-NEXT: store i64 [[EV3]], i64* [[GEP3]], align 8 77; CHECK-NEXT: ret void 78 store [2 x %B] %ab, [2 x %B]* %ab.ptr, align 8 79 ret void 80} 81 82define %A @loadA(%A* %a.ptr) { 83; CHECK-LABEL: loadA 84; CHECK-NEXT: [[GEP:%[a-z0-9\.]+]] = getelementptr inbounds %A, %A* %a.ptr, i64 0, i32 0 85; CHECK-NEXT: [[LOAD:%[a-z0-9\.]+]] = load %A__vtbl*, %A__vtbl** [[GEP]], align 8 86; CHECK-NEXT: [[IV:%[a-z0-9\.]+]] = insertvalue %A undef, %A__vtbl* [[LOAD]], 0 87; CHECK-NEXT: ret %A [[IV]] 88 %1 = load %A, %A* %a.ptr, align 8 89 ret %A %1 90} 91 92define %B @loadB(%B* %b.ptr) { 93; CHECK-LABEL: loadB 94; CHECK-NEXT: [[GEP1:%[a-z0-9\.]+]] = getelementptr inbounds %B, %B* %b.ptr, i64 0, i32 0 95; CHECK-NEXT: [[LOAD1:%[a-z0-9\.]+]] = load i8*, i8** [[GEP1]], align 8 96; CHECK-NEXT: [[IV1:%[a-z0-9\.]+]] = insertvalue %B undef, i8* [[LOAD1]], 0 97; CHECK-NEXT: [[GEP2:%[a-z0-9\.]+]] = getelementptr inbounds %B, %B* %b.ptr, i64 0, i32 1 98; CHECK-NEXT: [[LOAD2:%[a-z0-9\.]+]] = load i64, i64* [[GEP2]], align 8 99; CHECK-NEXT: [[IV2:%[a-z0-9\.]+]] = insertvalue %B [[IV1]], i64 [[LOAD2]], 1 100; CHECK-NEXT: ret %B [[IV2]] 101 %1 = load %B, %B* %b.ptr, align 8 102 ret %B %1 103} 104 105define { %A } @loadStructOfA({ %A }* %sa.ptr) { 106; CHECK-LABEL: loadStructOfA 107; CHECK-NEXT: [[GEP:%[a-z0-9\.]+]] = getelementptr inbounds { %A }, { %A }* %sa.ptr, i64 0, i32 0, i32 0 108; CHECK-NEXT: [[LOAD:%[a-z0-9\.]+]] = load %A__vtbl*, %A__vtbl** [[GEP]], align 8 109; CHECK-NEXT: [[IV1:%[a-z0-9\.]+]] = insertvalue %A undef, %A__vtbl* [[LOAD]], 0 110; CHECK-NEXT: [[IV2:%[a-z0-9\.]+]] = insertvalue { %A } undef, %A [[IV1]], 0 111; CHECK-NEXT: ret { %A } [[IV2]] 112 %1 = load { %A }, { %A }* %sa.ptr, align 8 113 ret { %A } %1 114} 115 116define [1 x %A] @loadArrayOfA([1 x %A]* %aa.ptr) { 117; CHECK-LABEL: loadArrayOfA 118; CHECK-NEXT: [[GEP:%[a-z0-9\.]+]] = getelementptr inbounds [1 x %A], [1 x %A]* %aa.ptr, i64 0, i64 0, i32 0 119; CHECK-NEXT: [[LOAD:%[a-z0-9\.]+]] = load %A__vtbl*, %A__vtbl** [[GEP]], align 8 120; CHECK-NEXT: [[IV1:%[a-z0-9\.]+]] = insertvalue %A undef, %A__vtbl* [[LOAD]], 0 121; CHECK-NEXT: [[IV2:%[a-z0-9\.]+]] = insertvalue [1 x %A] undef, %A [[IV1]], 0 122; CHECK-NEXT: ret [1 x %A] [[IV2]] 123 %1 = load [1 x %A], [1 x %A]* %aa.ptr, align 8 124 ret [1 x %A] %1 125} 126 127define { [1 x %A] } @loadStructOfArrayOfA({ [1 x %A] }* %saa.ptr) { 128; CHECK-LABEL: loadStructOfArrayOfA 129; CHECK-NEXT: [[GEP:%[a-z0-9\.]+]] = getelementptr inbounds { [1 x %A] }, { [1 x %A] }* %saa.ptr, i64 0, i32 0, i64 0, i32 0 130; CHECK-NEXT: [[LOAD:%[a-z0-9\.]+]] = load %A__vtbl*, %A__vtbl** [[GEP]], align 8 131; CHECK-NEXT: [[IV1:%[a-z0-9\.]+]] = insertvalue %A undef, %A__vtbl* [[LOAD]], 0 132; CHECK-NEXT: [[IV2:%[a-z0-9\.]+]] = insertvalue [1 x %A] undef, %A [[IV1]], 0 133; CHECK-NEXT: [[IV3:%[a-z0-9\.]+]] = insertvalue { [1 x %A] } undef, [1 x %A] [[IV2]], 0 134; CHECK-NEXT: ret { [1 x %A] } [[IV3]] 135 %1 = load { [1 x %A] }, { [1 x %A] }* %saa.ptr, align 8 136 ret { [1 x %A] } %1 137} 138 139define { %A } @structOfA({ %A }* %sa.ptr) { 140; CHECK-LABEL: structOfA 141; CHECK-NEXT: [[GEP:%[a-z0-9\.]+]] = getelementptr inbounds { %A }, { %A }* %sa.ptr, i64 0, i32 0, i32 0 142; CHECK-NEXT: store %A__vtbl* @A__vtblZ, %A__vtbl** [[GEP]], align 8 143; CHECK-NEXT: ret { %A } { %A { %A__vtbl* @A__vtblZ } } 144 store { %A } { %A { %A__vtbl* @A__vtblZ } }, { %A }* %sa.ptr, align 8 145 %1 = load { %A }, { %A }* %sa.ptr, align 8 146 ret { %A } %1 147} 148 149define %B @structB(%B* %b.ptr) { 150; CHECK-LABEL: structB 151; CHECK-NEXT: [[GEP1:%[a-z0-9\.]+]] = getelementptr inbounds %B, %B* %b.ptr, i64 0, i32 0 152; CHECK-NEXT: store i8* null, i8** [[GEP1]], align 8 153; CHECK-NEXT: [[GEP2:%[a-z0-9\.]+]] = getelementptr inbounds %B, %B* %b.ptr, i64 0, i32 1 154; CHECK-NEXT: store i64 42, i64* [[GEP2]], align 8 155; CHECK-NEXT: ret %B { i8* null, i64 42 } 156 store %B { i8* null, i64 42 }, %B* %b.ptr, align 8 157 %1 = load %B, %B* %b.ptr, align 8 158 ret %B %1 159} 160 161define [2 x %B] @loadArrayOfB([2 x %B]* %ab.ptr) { 162; CHECK-LABEL: loadArrayOfB 163; CHECK-NEXT: [[GEP1:%[a-z0-9\.]+]] = getelementptr inbounds [2 x %B], [2 x %B]* %ab.ptr, i64 0, i64 0, i32 0 164; CHECK-NEXT: [[LOAD1:%[a-z0-9\.]+]] = load i8*, i8** [[GEP1]], align 8 165; CHECK-NEXT: [[IV1:%[a-z0-9\.]+]] = insertvalue %B undef, i8* [[LOAD1]], 0 166; CHECK-NEXT: [[GEP2:%[a-z0-9\.]+]] = getelementptr inbounds [2 x %B], [2 x %B]* %ab.ptr, i64 0, i64 0, i32 1 167; CHECK-NEXT: [[LOAD2:%[a-z0-9\.]+]] = load i64, i64* [[GEP2]], align 8 168; CHECK-NEXT: [[IV2:%[a-z0-9\.]+]] = insertvalue %B [[IV1]], i64 [[LOAD2]], 1 169; CHECK-NEXT: [[IV3:%[a-z0-9\.]+]] = insertvalue [2 x %B] undef, %B [[IV2]], 0 170; CHECK-NEXT: [[GEP3:%[a-z0-9\.]+]] = getelementptr inbounds [2 x %B], [2 x %B]* %ab.ptr, i64 0, i64 1, i32 0 171; CHECK-NEXT: [[LOAD3:%[a-z0-9\.]+]] = load i8*, i8** [[GEP3]], align 8 172; CHECK-NEXT: [[IV4:%[a-z0-9\.]+]] = insertvalue %B undef, i8* [[LOAD3]], 0 173; CHECK-NEXT: [[GEP4:%[a-z0-9\.]+]] = getelementptr inbounds [2 x %B], [2 x %B]* %ab.ptr, i64 0, i64 1, i32 1 174; CHECK-NEXT: [[LOAD4:%[a-z0-9\.]+]] = load i64, i64* [[GEP4]], align 8 175; CHECK-NEXT: [[IV5:%[a-z0-9\.]+]] = insertvalue %B [[IV4]], i64 [[LOAD4]], 1 176; CHECK-NEXT: [[IV6:%[a-z0-9\.]+]] = insertvalue [2 x %B] [[IV3]], %B [[IV5]], 1 177; CHECK-NEXT: ret [2 x %B] [[IV6]] 178 %1 = load [2 x %B], [2 x %B]* %ab.ptr, align 8 179 ret [2 x %B] %1 180} 181 182%struct.S = type <{ i8, %struct.T }> 183%struct.T = type { i32, i32 } 184 185; Make sure that we do not increase alignment of packed struct element 186define i32 @packed_alignment(%struct.S* dereferenceable(9) %s) { 187; CHECK-LABEL: packed_alignment 188; CHECK-NEXT: %tv.elt1 = getelementptr inbounds %struct.S, %struct.S* %s, i64 0, i32 1, i32 1 189; CHECK-NEXT: %tv.unpack2 = load i32, i32* %tv.elt1, align 1 190; CHECK-NEXT: ret i32 %tv.unpack2 191 %t = getelementptr inbounds %struct.S, %struct.S* %s, i32 0, i32 1 192 %tv = load %struct.T, %struct.T* %t, align 1 193 %v = extractvalue %struct.T %tv, 1 194 ret i32 %v 195} 196 197%struct.U = type {i8, i8, i8, i8, i8, i8, i8, i8, i64} 198 199define void @check_alignment(%struct.U* %u, %struct.U* %v) { 200; CHECK-LABEL: check_alignment 201; CHECK: load i8, i8* {{.*}}, align 8 202; CHECK: load i8, i8* {{.*}}, align 1 203; CHECK: load i8, i8* {{.*}}, align 2 204; CHECK: load i8, i8* {{.*}}, align 1 205; CHECK: load i8, i8* {{.*}}, align 4 206; CHECK: load i8, i8* {{.*}}, align 1 207; CHECK: load i8, i8* {{.*}}, align 2 208; CHECK: load i8, i8* {{.*}}, align 1 209; CHECK: load i64, i64* {{.*}}, align 8 210; CHECK: store i8 {{.*}}, i8* {{.*}}, align 8 211; CHECK: store i8 {{.*}}, i8* {{.*}}, align 1 212; CHECK: store i8 {{.*}}, i8* {{.*}}, align 2 213; CHECK: store i8 {{.*}}, i8* {{.*}}, align 1 214; CHECK: store i8 {{.*}}, i8* {{.*}}, align 4 215; CHECK: store i8 {{.*}}, i8* {{.*}}, align 1 216; CHECK: store i8 {{.*}}, i8* {{.*}}, align 2 217; CHECK: store i8 {{.*}}, i8* {{.*}}, align 1 218; CHECK: store i64 {{.*}}, i64* {{.*}}, align 8 219 %1 = load %struct.U, %struct.U* %u 220 store %struct.U %1, %struct.U* %v 221 ret void 222} 223