1 ; RUN: opt -instcombine -S < %s | FileCheck %s
3 target datalayout = "e-i64:64-f80:128-n8:16:32:64"
4 target triple = "x86_64-unknown-linux-gnu"
6 %A__vtbl = type { i8*, i32 (%A*)* }
7 %A = type { %A__vtbl* }
10 @A__vtblZ = constant %A__vtbl { i8* null, i32 (%A*)* @A.foo }
12 declare i32 @A.foo(%A* nocapture %this)
14 define void @storeA(%A* %a.ptr) {
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
23 define void @storeB(%B* %b.ptr) {
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
34 define 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
43 define 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
52 define void @storeLargeArrayOfA([2000 x %A]* %aa.ptr) {
53 ; CHECK-LABEL: storeLargeArrayOfA
54 ; CHECK-NEXT: store [2000 x %A]
55 ; CHECK-NEXT: ret void
56 %i1 = insertvalue [2000 x %A] undef, %A { %A__vtbl* @A__vtblZ }, 1
57 store [2000 x %A] %i1, [2000 x %A]* %aa.ptr, align 8
61 define void @storeStructOfArrayOfA({ [1 x %A] }* %saa.ptr) {
62 ; CHECK-LABEL: storeStructOfArrayOfA
63 ; CHECK-NEXT: [[GEP:%[a-z0-9\.]+]] = getelementptr inbounds { [1 x %A] }, { [1 x %A] }* %saa.ptr, i64 0, i32 0, i64 0, i32 0
64 ; CHECK-NEXT: store %A__vtbl* @A__vtblZ, %A__vtbl** [[GEP]], align 8
65 ; CHECK-NEXT: ret void
66 store { [1 x %A] } { [1 x %A] [%A { %A__vtbl* @A__vtblZ }] }, { [1 x %A] }* %saa.ptr, align 8
70 define void @storeArrayOfB([2 x %B]* %ab.ptr, [2 x %B] %ab) {
71 ; CHECK-LABEL: storeArrayOfB
72 ; CHECK-NEXT: [[EVB0:%[a-z0-9\.]+]] = extractvalue [2 x %B] %ab, 0
73 ; CHECK-NEXT: [[GEP0:%[a-z0-9\.]+]] = getelementptr inbounds [2 x %B], [2 x %B]* %ab.ptr, i64 0, i64 0, i32 0
74 ; CHECK-NEXT: [[EV0:%[a-z0-9\.]+]] = extractvalue %B [[EVB0]], 0
75 ; CHECK-NEXT: store i8* [[EV0]], i8** [[GEP0]], align 8
76 ; CHECK-NEXT: [[GEP1:%[a-z0-9\.]+]] = getelementptr inbounds [2 x %B], [2 x %B]* %ab.ptr, i64 0, i64 0, i32 1
77 ; CHECK-NEXT: [[EV1:%[a-z0-9\.]+]] = extractvalue %B [[EVB0]], 1
78 ; CHECK-NEXT: store i64 [[EV1]], i64* [[GEP1]], align 8
79 ; CHECK-NEXT: [[EVB1:%[a-z0-9\.]+]] = extractvalue [2 x %B] %ab, 1
80 ; CHECK-NEXT: [[GEP2:%[a-z0-9\.]+]] = getelementptr inbounds [2 x %B], [2 x %B]* %ab.ptr, i64 0, i64 1, i32 0
81 ; CHECK-NEXT: [[EV2:%[a-z0-9\.]+]] = extractvalue %B [[EVB1]], 0
82 ; CHECK-NEXT: store i8* [[EV2]], i8** [[GEP2]], align 8
83 ; CHECK-NEXT: [[GEP3:%[a-z0-9\.]+]] = getelementptr inbounds [2 x %B], [2 x %B]* %ab.ptr, i64 0, i64 1, i32 1
84 ; CHECK-NEXT: [[EV3:%[a-z0-9\.]+]] = extractvalue %B [[EVB1]], 1
85 ; CHECK-NEXT: store i64 [[EV3]], i64* [[GEP3]], align 8
86 ; CHECK-NEXT: ret void
87 store [2 x %B] %ab, [2 x %B]* %ab.ptr, align 8
91 define %A @loadA(%A* %a.ptr) {
93 ; CHECK-NEXT: [[GEP:%[a-z0-9\.]+]] = getelementptr inbounds %A, %A* %a.ptr, i64 0, i32 0
94 ; CHECK-NEXT: [[LOAD:%[a-z0-9\.]+]] = load %A__vtbl*, %A__vtbl** [[GEP]], align 8
95 ; CHECK-NEXT: [[IV:%[a-z0-9\.]+]] = insertvalue %A undef, %A__vtbl* [[LOAD]], 0
96 ; CHECK-NEXT: ret %A [[IV]]
97 %1 = load %A, %A* %a.ptr, align 8
101 define %B @loadB(%B* %b.ptr) {
103 ; CHECK-NEXT: [[GEP1:%[a-z0-9\.]+]] = getelementptr inbounds %B, %B* %b.ptr, i64 0, i32 0
104 ; CHECK-NEXT: [[LOAD1:%[a-z0-9\.]+]] = load i8*, i8** [[GEP1]], align 8
105 ; CHECK-NEXT: [[IV1:%[a-z0-9\.]+]] = insertvalue %B undef, i8* [[LOAD1]], 0
106 ; CHECK-NEXT: [[GEP2:%[a-z0-9\.]+]] = getelementptr inbounds %B, %B* %b.ptr, i64 0, i32 1
107 ; CHECK-NEXT: [[LOAD2:%[a-z0-9\.]+]] = load i64, i64* [[GEP2]], align 8
108 ; CHECK-NEXT: [[IV2:%[a-z0-9\.]+]] = insertvalue %B [[IV1]], i64 [[LOAD2]], 1
109 ; CHECK-NEXT: ret %B [[IV2]]
110 %1 = load %B, %B* %b.ptr, align 8
114 define { %A } @loadStructOfA({ %A }* %sa.ptr) {
115 ; CHECK-LABEL: loadStructOfA
116 ; CHECK-NEXT: [[GEP:%[a-z0-9\.]+]] = getelementptr inbounds { %A }, { %A }* %sa.ptr, i64 0, i32 0, i32 0
117 ; CHECK-NEXT: [[LOAD:%[a-z0-9\.]+]] = load %A__vtbl*, %A__vtbl** [[GEP]], align 8
118 ; CHECK-NEXT: [[IV1:%[a-z0-9\.]+]] = insertvalue %A undef, %A__vtbl* [[LOAD]], 0
119 ; CHECK-NEXT: [[IV2:%[a-z0-9\.]+]] = insertvalue { %A } undef, %A [[IV1]], 0
120 ; CHECK-NEXT: ret { %A } [[IV2]]
121 %1 = load { %A }, { %A }* %sa.ptr, align 8
125 define [1 x %A] @loadArrayOfA([1 x %A]* %aa.ptr) {
126 ; CHECK-LABEL: loadArrayOfA
127 ; CHECK-NEXT: [[GEP:%[a-z0-9\.]+]] = getelementptr inbounds [1 x %A], [1 x %A]* %aa.ptr, i64 0, i64 0, i32 0
128 ; CHECK-NEXT: [[LOAD:%[a-z0-9\.]+]] = load %A__vtbl*, %A__vtbl** [[GEP]], align 8
129 ; CHECK-NEXT: [[IV1:%[a-z0-9\.]+]] = insertvalue %A undef, %A__vtbl* [[LOAD]], 0
130 ; CHECK-NEXT: [[IV2:%[a-z0-9\.]+]] = insertvalue [1 x %A] undef, %A [[IV1]], 0
131 ; CHECK-NEXT: ret [1 x %A] [[IV2]]
132 %1 = load [1 x %A], [1 x %A]* %aa.ptr, align 8
136 define { [1 x %A] } @loadStructOfArrayOfA({ [1 x %A] }* %saa.ptr) {
137 ; CHECK-LABEL: loadStructOfArrayOfA
138 ; CHECK-NEXT: [[GEP:%[a-z0-9\.]+]] = getelementptr inbounds { [1 x %A] }, { [1 x %A] }* %saa.ptr, i64 0, i32 0, i64 0, i32 0
139 ; CHECK-NEXT: [[LOAD:%[a-z0-9\.]+]] = load %A__vtbl*, %A__vtbl** [[GEP]], align 8
140 ; CHECK-NEXT: [[IV1:%[a-z0-9\.]+]] = insertvalue %A undef, %A__vtbl* [[LOAD]], 0
141 ; CHECK-NEXT: [[IV2:%[a-z0-9\.]+]] = insertvalue [1 x %A] undef, %A [[IV1]], 0
142 ; CHECK-NEXT: [[IV3:%[a-z0-9\.]+]] = insertvalue { [1 x %A] } undef, [1 x %A] [[IV2]], 0
143 ; CHECK-NEXT: ret { [1 x %A] } [[IV3]]
144 %1 = load { [1 x %A] }, { [1 x %A] }* %saa.ptr, align 8
148 define { %A } @structOfA({ %A }* %sa.ptr) {
149 ; CHECK-LABEL: structOfA
150 ; CHECK-NEXT: [[GEP:%[a-z0-9\.]+]] = getelementptr inbounds { %A }, { %A }* %sa.ptr, i64 0, i32 0, i32 0
151 ; CHECK-NEXT: store %A__vtbl* @A__vtblZ, %A__vtbl** [[GEP]], align 8
152 ; CHECK-NEXT: ret { %A } { %A { %A__vtbl* @A__vtblZ } }
153 store { %A } { %A { %A__vtbl* @A__vtblZ } }, { %A }* %sa.ptr, align 8
154 %1 = load { %A }, { %A }* %sa.ptr, align 8
158 define %B @structB(%B* %b.ptr) {
159 ; CHECK-LABEL: structB
160 ; CHECK-NEXT: [[GEP1:%[a-z0-9\.]+]] = getelementptr inbounds %B, %B* %b.ptr, i64 0, i32 0
161 ; CHECK-NEXT: store i8* null, i8** [[GEP1]], align 8
162 ; CHECK-NEXT: [[GEP2:%[a-z0-9\.]+]] = getelementptr inbounds %B, %B* %b.ptr, i64 0, i32 1
163 ; CHECK-NEXT: store i64 42, i64* [[GEP2]], align 8
164 ; CHECK-NEXT: ret %B { i8* null, i64 42 }
165 store %B { i8* null, i64 42 }, %B* %b.ptr, align 8
166 %1 = load %B, %B* %b.ptr, align 8
170 define [2 x %B] @loadArrayOfB([2 x %B]* %ab.ptr) {
171 ; CHECK-LABEL: loadArrayOfB
172 ; CHECK-NEXT: [[GEP1:%[a-z0-9\.]+]] = getelementptr inbounds [2 x %B], [2 x %B]* %ab.ptr, i64 0, i64 0, i32 0
173 ; CHECK-NEXT: [[LOAD1:%[a-z0-9\.]+]] = load i8*, i8** [[GEP1]], align 8
174 ; CHECK-NEXT: [[IV1:%[a-z0-9\.]+]] = insertvalue %B undef, i8* [[LOAD1]], 0
175 ; CHECK-NEXT: [[GEP2:%[a-z0-9\.]+]] = getelementptr inbounds [2 x %B], [2 x %B]* %ab.ptr, i64 0, i64 0, i32 1
176 ; CHECK-NEXT: [[LOAD2:%[a-z0-9\.]+]] = load i64, i64* [[GEP2]], align 8
177 ; CHECK-NEXT: [[IV2:%[a-z0-9\.]+]] = insertvalue %B [[IV1]], i64 [[LOAD2]], 1
178 ; CHECK-NEXT: [[IV3:%[a-z0-9\.]+]] = insertvalue [2 x %B] undef, %B [[IV2]], 0
179 ; CHECK-NEXT: [[GEP3:%[a-z0-9\.]+]] = getelementptr inbounds [2 x %B], [2 x %B]* %ab.ptr, i64 0, i64 1, i32 0
180 ; CHECK-NEXT: [[LOAD3:%[a-z0-9\.]+]] = load i8*, i8** [[GEP3]], align 8
181 ; CHECK-NEXT: [[IV4:%[a-z0-9\.]+]] = insertvalue %B undef, i8* [[LOAD3]], 0
182 ; CHECK-NEXT: [[GEP4:%[a-z0-9\.]+]] = getelementptr inbounds [2 x %B], [2 x %B]* %ab.ptr, i64 0, i64 1, i32 1
183 ; CHECK-NEXT: [[LOAD4:%[a-z0-9\.]+]] = load i64, i64* [[GEP4]], align 8
184 ; CHECK-NEXT: [[IV5:%[a-z0-9\.]+]] = insertvalue %B [[IV4]], i64 [[LOAD4]], 1
185 ; CHECK-NEXT: [[IV6:%[a-z0-9\.]+]] = insertvalue [2 x %B] [[IV3]], %B [[IV5]], 1
186 ; CHECK-NEXT: ret [2 x %B] [[IV6]]
187 %1 = load [2 x %B], [2 x %B]* %ab.ptr, align 8
191 define [2000 x %B] @loadLargeArrayOfB([2000 x %B]* %ab.ptr) {
192 ; CHECK-LABEL: loadLargeArrayOfB
193 ; CHECK-NEXT: load [2000 x %B], [2000 x %B]* %ab.ptr, align 8
194 ; CHECK-NEXT: ret [2000 x %B]
195 %1 = load [2000 x %B], [2000 x %B]* %ab.ptr, align 8
199 %struct.S = type <{ i8, %struct.T }>
200 %struct.T = type { i32, i32 }
202 ; Make sure that we do not increase alignment of packed struct element
203 define i32 @packed_alignment(%struct.S* dereferenceable(9) %s) {
204 ; CHECK-LABEL: packed_alignment
205 ; CHECK-NEXT: %tv.elt1 = getelementptr inbounds %struct.S, %struct.S* %s, i64 0, i32 1, i32 1
206 ; CHECK-NEXT: %tv.unpack2 = load i32, i32* %tv.elt1, align 1
207 ; CHECK-NEXT: ret i32 %tv.unpack2
208 %t = getelementptr inbounds %struct.S, %struct.S* %s, i32 0, i32 1
209 %tv = load %struct.T, %struct.T* %t, align 1
210 %v = extractvalue %struct.T %tv, 1
214 %struct.U = type {i8, i8, i8, i8, i8, i8, i8, i8, i64}
216 define void @check_alignment(%struct.U* %u, %struct.U* %v) {
217 ; CHECK-LABEL: check_alignment
218 ; CHECK: load i8, i8* {{.*}}, align 8
219 ; CHECK: load i8, i8* {{.*}}, align 1
220 ; CHECK: load i8, i8* {{.*}}, align 2
221 ; CHECK: load i8, i8* {{.*}}, align 1
222 ; CHECK: load i8, i8* {{.*}}, align 4
223 ; CHECK: load i8, i8* {{.*}}, align 1
224 ; CHECK: load i8, i8* {{.*}}, align 2
225 ; CHECK: load i8, i8* {{.*}}, align 1
226 ; CHECK: load i64, i64* {{.*}}, align 8
227 ; CHECK: store i8 {{.*}}, i8* {{.*}}, align 8
228 ; CHECK: store i8 {{.*}}, i8* {{.*}}, align 1
229 ; CHECK: store i8 {{.*}}, i8* {{.*}}, align 2
230 ; CHECK: store i8 {{.*}}, i8* {{.*}}, align 1
231 ; CHECK: store i8 {{.*}}, i8* {{.*}}, align 4
232 ; CHECK: store i8 {{.*}}, i8* {{.*}}, align 1
233 ; CHECK: store i8 {{.*}}, i8* {{.*}}, align 2
234 ; CHECK: store i8 {{.*}}, i8* {{.*}}, align 1
235 ; CHECK: store i64 {{.*}}, i64* {{.*}}, align 8
236 %1 = load %struct.U, %struct.U* %u
237 store %struct.U %1, %struct.U* %v