1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2 ; RUN: opt < %s -instcombine -S | FileCheck %s
4 target datalayout = "e-p:64:64-p1:16:16-p2:32:32:32-p3:64:64:64"
6 %intstruct = type { i32 }
7 %pair = type { i32, i32 }
8 %struct.B = type { double }
9 %struct.A = type { %struct.B, i32, i32 }
10 %struct.C = type { [7 x i8] }
13 @Global = external global [10 x i8]
14 @Global_as1 = external addrspace(1) global [10 x i8]
16 ; Test noop elimination
17 define i32* @test1(i32* %I) {
18 ; CHECK-LABEL: @test1(
19 ; CHECK-NEXT: ret i32* [[I:%.*]]
21 %A = getelementptr i32, i32* %I, i64 0
25 define i32 addrspace(1)* @test1_as1(i32 addrspace(1)* %I) {
26 ; CHECK-LABEL: @test1_as1(
27 ; CHECK-NEXT: ret i32 addrspace(1)* [[I:%.*]]
29 %A = getelementptr i32, i32 addrspace(1)* %I, i64 0
30 ret i32 addrspace(1)* %A
33 ; Test noop elimination
34 define i32* @test2(i32* %I) {
35 ; CHECK-LABEL: @test2(
36 ; CHECK-NEXT: ret i32* [[I:%.*]]
38 %A = getelementptr i32, i32* %I
42 ; Test that two array indexing geps fold
43 define i32* @test3(i32* %I) {
44 ; CHECK-LABEL: @test3(
45 ; CHECK-NEXT: [[B:%.*]] = getelementptr i32, i32* [[I:%.*]], i64 21
46 ; CHECK-NEXT: ret i32* [[B]]
48 %A = getelementptr i32, i32* %I, i64 17
49 %B = getelementptr i32, i32* %A, i64 4
53 ; Test that two getelementptr insts fold
54 define i32* @test4({ i32 }* %I) {
55 ; CHECK-LABEL: @test4(
56 ; CHECK-NEXT: [[B:%.*]] = getelementptr { i32 }, { i32 }* [[I:%.*]], i64 1, i32 0
57 ; CHECK-NEXT: ret i32* [[B]]
59 %A = getelementptr { i32 }, { i32 }* %I, i64 1
60 %B = getelementptr { i32 }, { i32 }* %A, i64 0, i32 0
64 define void @test5(i8 %B) {
65 ; This should be turned into a constexpr instead of being an instruction
66 ; CHECK-LABEL: @test5(
67 ; CHECK-NEXT: store i8 [[B:%.*]], i8* getelementptr inbounds ([10 x i8], [10 x i8]* @Global, i64 0, i64 4), align 1
68 ; CHECK-NEXT: ret void
70 %A = getelementptr [10 x i8], [10 x i8]* @Global, i64 0, i64 4
75 define void @test5_as1(i8 %B) {
76 ; This should be turned into a constexpr instead of being an instruction
77 ; CHECK-LABEL: @test5_as1(
78 ; CHECK-NEXT: store i8 [[B:%.*]], i8 addrspace(1)* getelementptr inbounds ([10 x i8], [10 x i8] addrspace(1)* @Global_as1, i16 0, i16 4), align 1
79 ; CHECK-NEXT: ret void
81 %A = getelementptr [10 x i8], [10 x i8] addrspace(1)* @Global_as1, i16 0, i16 4
82 store i8 %B, i8 addrspace(1)* %A
86 %as1_ptr_struct = type { i32 addrspace(1)* }
87 %as2_ptr_struct = type { i32 addrspace(2)* }
89 @global_as2 = addrspace(2) global i32 zeroinitializer
90 @global_as1_as2_ptr = addrspace(1) global %as2_ptr_struct { i32 addrspace(2)* @global_as2 }
92 ; This should be turned into a constexpr instead of being an instruction
93 define void @test_evaluate_gep_nested_as_ptrs(i32 addrspace(2)* %B) {
94 ; CHECK-LABEL: @test_evaluate_gep_nested_as_ptrs(
95 ; CHECK-NEXT: store i32 addrspace(2)* [[B:%.*]], i32 addrspace(2)* addrspace(1)* getelementptr inbounds ([[AS2_PTR_STRUCT:%.*]], [[AS2_PTR_STRUCT]] addrspace(1)* @global_as1_as2_ptr, i16 0, i32 0), align 8
96 ; CHECK-NEXT: ret void
98 %A = getelementptr %as2_ptr_struct, %as2_ptr_struct addrspace(1)* @global_as1_as2_ptr, i16 0, i32 0
99 store i32 addrspace(2)* %B, i32 addrspace(2)* addrspace(1)* %A
103 @arst = addrspace(1) global [4 x i8 addrspace(2)*] zeroinitializer
105 define void @test_evaluate_gep_as_ptrs_array(i8 addrspace(2)* %B) {
106 ; CHECK-LABEL: @test_evaluate_gep_as_ptrs_array(
107 ; CHECK-NEXT: store i8 addrspace(2)* [[B:%.*]], i8 addrspace(2)* addrspace(1)* getelementptr inbounds ([4 x i8 addrspace(2)*], [4 x i8 addrspace(2)*] addrspace(1)* @arst, i16 0, i16 2), align 4
108 ; CHECK-NEXT: ret void
111 %A = getelementptr [4 x i8 addrspace(2)*], [4 x i8 addrspace(2)*] addrspace(1)* @arst, i16 0, i16 2
112 store i8 addrspace(2)* %B, i8 addrspace(2)* addrspace(1)* %A
116 define i32* @test7(i32* %I, i64 %C, i64 %D) {
117 ; CHECK-LABEL: @test7(
118 ; CHECK-NEXT: [[A:%.*]] = getelementptr i32, i32* [[I:%.*]], i64 [[C:%.*]]
119 ; CHECK-NEXT: [[B:%.*]] = getelementptr i32, i32* [[A]], i64 [[D:%.*]]
120 ; CHECK-NEXT: ret i32* [[B]]
122 %A = getelementptr i32, i32* %I, i64 %C
123 %B = getelementptr i32, i32* %A, i64 %D
127 define i8* @test8([10 x i32]* %X) {
128 ;; Fold into the cast.
129 ; CHECK-LABEL: @test8(
130 ; CHECK-NEXT: [[B:%.*]] = bitcast [10 x i32]* [[X:%.*]] to i8*
131 ; CHECK-NEXT: ret i8* [[B]]
133 %A = getelementptr [10 x i32], [10 x i32]* %X, i64 0, i64 0
134 %B = bitcast i32* %A to i8*
138 define i32 @test9() {
139 ; CHECK-LABEL: @test9(
140 ; CHECK-NEXT: ret i32 8
142 %A = getelementptr { i32, double }, { i32, double }* null, i32 0, i32 1
143 %B = ptrtoint double* %A to i32
147 define i1 @test10({ i32, i32 }* %x, { i32, i32 }* %y) {
148 ; CHECK-LABEL: @test10(
149 ; CHECK-NEXT: [[T4:%.*]] = icmp eq { i32, i32 }* [[X:%.*]], [[Y:%.*]]
150 ; CHECK-NEXT: ret i1 [[T4]]
152 %t1 = getelementptr { i32, i32 }, { i32, i32 }* %x, i32 0, i32 1
153 %t3 = getelementptr { i32, i32 }, { i32, i32 }* %y, i32 0, i32 1
154 %t4 = icmp eq i32* %t1, %t3
158 define i1 @test10_addrspacecast({ i32, i32 }* %x, { i32, i32 } addrspace(3)* %y) {
159 ; CHECK-LABEL: @test10_addrspacecast(
160 ; CHECK-NEXT: [[T1:%.*]] = getelementptr { i32, i32 }, { i32, i32 }* [[X:%.*]], i64 0, i32 1
161 ; CHECK-NEXT: [[T3:%.*]] = getelementptr { i32, i32 }, { i32, i32 } addrspace(3)* [[Y:%.*]], i64 0, i32 1
162 ; CHECK-NEXT: [[T3_C:%.*]] = addrspacecast i32 addrspace(3)* [[T3]] to i32*
163 ; CHECK-NEXT: [[T4:%.*]] = icmp eq i32* [[T1]], [[T3_C]]
164 ; CHECK-NEXT: ret i1 [[T4]]
166 %t1 = getelementptr { i32, i32 }, { i32, i32 }* %x, i32 0, i32 1
167 %t3 = getelementptr { i32, i32 }, { i32, i32 } addrspace(3)* %y, i32 0, i32 1
168 %t3.c = addrspacecast i32 addrspace(3)* %t3 to i32*
169 %t4 = icmp eq i32* %t1, %t3.c
173 define i1 @test11({ i32, i32 }* %X) {
174 ; CHECK-LABEL: @test11(
175 ; CHECK-NEXT: [[Q:%.*]] = icmp eq { i32, i32 }* [[X:%.*]], null
176 ; CHECK-NEXT: ret i1 [[Q]]
178 %P = getelementptr { i32, i32 }, { i32, i32 }* %X, i32 0, i32 0
179 %Q = icmp eq i32* %P, null
185 define i32 @test12(%struct.A* %a) {
186 ; CHECK-LABEL: @test12(
188 ; CHECK-NEXT: [[G3:%.*]] = getelementptr [[STRUCT_A:%.*]], %struct.A* [[A:%.*]], i64 0, i32 1
189 ; CHECK-NEXT: store i32 10, i32* [[G3]], align 4
190 ; CHECK-NEXT: ret i32 10
193 %g3 = getelementptr %struct.A, %struct.A* %a, i32 0, i32 1
194 store i32 10, i32* %g3, align 4
196 %g4 = getelementptr %struct.A, %struct.A* %a, i32 0, i32 0
198 %new_a = bitcast %struct.B* %g4 to %struct.A*
200 %g5 = getelementptr %struct.A, %struct.A* %new_a, i32 0, i32 1
201 %a_a = load i32, i32* %g5, align 4
207 %S = type { i32, [ 100 x i32] }
208 define i1 @test13(i64 %X, %S* %P) {
209 ; CHECK-LABEL: @test13(
210 ; CHECK-NEXT: [[C:%.*]] = icmp eq i64 [[X:%.*]], -1
211 ; CHECK-NEXT: ret i1 [[C]]
213 %A = getelementptr inbounds %S, %S* %P, i32 0, i32 1, i64 %X
214 %B = getelementptr inbounds %S, %S* %P, i32 0, i32 0
215 %C = icmp eq i32* %A, %B
219 define <2 x i1> @test13_vector(<2 x i64> %X, <2 x %S*> %P) nounwind {
220 ; CHECK-LABEL: @test13_vector(
221 ; CHECK-NEXT: [[C:%.*]] = icmp eq <2 x i64> [[X:%.*]], <i64 -1, i64 -1>
222 ; CHECK-NEXT: ret <2 x i1> [[C]]
224 %A = getelementptr inbounds %S, <2 x %S*> %P, <2 x i64> zeroinitializer, <2 x i32> <i32 1, i32 1>, <2 x i64> %X
225 %B = getelementptr inbounds %S, <2 x %S*> %P, <2 x i64> <i64 0, i64 0>, <2 x i32> <i32 0, i32 0>
226 %C = icmp eq <2 x i32*> %A, %B
230 define <2 x i1> @test13_vector2(i64 %X, <2 x %S*> %P) nounwind {
231 ; CHECK-LABEL: @test13_vector2(
232 ; CHECK-NEXT: [[DOTSPLATINSERT:%.*]] = insertelement <2 x i64> poison, i64 [[X:%.*]], i64 0
233 ; CHECK-NEXT: [[TMP1:%.*]] = shl <2 x i64> [[DOTSPLATINSERT]], <i64 2, i64 0>
234 ; CHECK-NEXT: [[TMP2:%.*]] = icmp eq <2 x i64> [[TMP1]], <i64 -4, i64 poison>
235 ; CHECK-NEXT: [[C:%.*]] = shufflevector <2 x i1> [[TMP2]], <2 x i1> poison, <2 x i32> zeroinitializer
236 ; CHECK-NEXT: ret <2 x i1> [[C]]
238 %A = getelementptr inbounds %S, <2 x %S*> %P, <2 x i64> zeroinitializer, <2 x i32> <i32 1, i32 1>, i64 %X
239 %B = getelementptr inbounds %S, <2 x %S*> %P, <2 x i64> <i64 0, i64 0>, <2 x i32> <i32 0, i32 0>
240 %C = icmp eq <2 x i32*> %A, %B
244 ; This is a test of icmp + shl nuw in disguise - 4611... is 0x3fff...
245 define <2 x i1> @test13_vector3(i64 %X, <2 x %S*> %P) nounwind {
246 ; CHECK-LABEL: @test13_vector3(
247 ; CHECK-NEXT: [[DOTSPLATINSERT:%.*]] = insertelement <2 x i64> poison, i64 [[X:%.*]], i64 0
248 ; CHECK-NEXT: [[TMP1:%.*]] = shl <2 x i64> [[DOTSPLATINSERT]], <i64 2, i64 0>
249 ; CHECK-NEXT: [[TMP2:%.*]] = icmp eq <2 x i64> [[TMP1]], <i64 4, i64 poison>
250 ; CHECK-NEXT: [[C:%.*]] = shufflevector <2 x i1> [[TMP2]], <2 x i1> poison, <2 x i32> zeroinitializer
251 ; CHECK-NEXT: ret <2 x i1> [[C]]
253 %A = getelementptr inbounds %S, <2 x %S*> %P, <2 x i64> zeroinitializer, <2 x i32> <i32 1, i32 1>, i64 %X
254 %B = getelementptr inbounds %S, <2 x %S*> %P, <2 x i64> <i64 0, i64 0>, <2 x i32> <i32 1, i32 1>, i64 1
255 %C = icmp eq <2 x i32*> %A, %B
259 define i1 @test13_as1(i16 %X, %S addrspace(1)* %P) {
260 ; CHECK-LABEL: @test13_as1(
261 ; CHECK-NEXT: [[C:%.*]] = icmp eq i16 [[X:%.*]], -1
262 ; CHECK-NEXT: ret i1 [[C]]
264 %A = getelementptr inbounds %S, %S addrspace(1)* %P, i16 0, i32 1, i16 %X
265 %B = getelementptr inbounds %S, %S addrspace(1)* %P, i16 0, i32 0
266 %C = icmp eq i32 addrspace(1)* %A, %B
270 define <2 x i1> @test13_vector_as1(<2 x i16> %X, <2 x %S addrspace(1)*> %P) {
271 ; CHECK-LABEL: @test13_vector_as1(
272 ; CHECK-NEXT: [[C:%.*]] = icmp eq <2 x i16> [[X:%.*]], <i16 -1, i16 -1>
273 ; CHECK-NEXT: ret <2 x i1> [[C]]
275 %A = getelementptr inbounds %S, <2 x %S addrspace(1)*> %P, <2 x i16> <i16 0, i16 0>, <2 x i32> <i32 1, i32 1>, <2 x i16> %X
276 %B = getelementptr inbounds %S, <2 x %S addrspace(1)*> %P, <2 x i16> <i16 0, i16 0>, <2 x i32> <i32 0, i32 0>
277 %C = icmp eq <2 x i32 addrspace(1)*> %A, %B
281 define i1 @test13_i32(i32 %X, %S* %P) {
282 ; CHECK-LABEL: @test13_i32(
283 ; CHECK-NEXT: [[C:%.*]] = icmp eq i32 [[X:%.*]], -1
284 ; CHECK-NEXT: ret i1 [[C]]
286 %A = getelementptr inbounds %S, %S* %P, i32 0, i32 1, i32 %X
287 %B = getelementptr inbounds %S, %S* %P, i32 0, i32 0
288 %C = icmp eq i32* %A, %B
292 define i1 @test13_i16(i16 %X, %S* %P) {
293 ; CHECK-LABEL: @test13_i16(
294 ; CHECK-NEXT: [[C:%.*]] = icmp eq i16 [[X:%.*]], -1
295 ; CHECK-NEXT: ret i1 [[C]]
297 %A = getelementptr inbounds %S, %S* %P, i16 0, i32 1, i16 %X
298 %B = getelementptr inbounds %S, %S* %P, i16 0, i32 0
299 %C = icmp eq i32* %A, %B
303 define i1 @test13_i128(i128 %X, %S* %P) {
304 ; CHECK-LABEL: @test13_i128(
305 ; CHECK-NEXT: [[TMP1:%.*]] = trunc i128 [[X:%.*]] to i64
306 ; CHECK-NEXT: [[C:%.*]] = icmp eq i64 [[TMP1]], -1
307 ; CHECK-NEXT: ret i1 [[C]]
309 %A = getelementptr inbounds %S, %S* %P, i128 0, i32 1, i128 %X
310 %B = getelementptr inbounds %S, %S* %P, i128 0, i32 0
311 %C = icmp eq i32* %A, %B
316 @G = external global [3 x i8]
317 define i8* @test14(i32 %idx) {
318 ; CHECK-LABEL: @test14(
319 ; CHECK-NEXT: [[ZEXT:%.*]] = zext i32 [[IDX:%.*]] to i64
320 ; CHECK-NEXT: [[T:%.*]] = getelementptr [3 x i8], [3 x i8]* @G, i64 0, i64 [[ZEXT]]
321 ; CHECK-NEXT: ret i8* [[T]]
323 %zext = zext i32 %idx to i64
324 %t = getelementptr i8, i8* getelementptr ([3 x i8], [3 x i8]* @G, i32 0, i32 0), i64 %zext
329 ; Test folding of constantexpr geps into normal geps.
330 @Array = external global [40 x i32]
331 define i32 *@test15(i64 %X) {
332 ; CHECK-LABEL: @test15(
333 ; CHECK-NEXT: [[A:%.*]] = getelementptr [40 x i32], [40 x i32]* @Array, i64 0, i64 [[X:%.*]]
334 ; CHECK-NEXT: ret i32* [[A]]
336 %A = getelementptr i32, i32* getelementptr ([40 x i32], [40 x i32]* @Array, i64 0, i64 0), i64 %X
341 define i32* @test16(i32* %X, i32 %Idx) {
342 ; CHECK-LABEL: @test16(
343 ; CHECK-NEXT: [[TMP1:%.*]] = sext i32 [[IDX:%.*]] to i64
344 ; CHECK-NEXT: [[R:%.*]] = getelementptr i32, i32* [[X:%.*]], i64 [[TMP1]]
345 ; CHECK-NEXT: ret i32* [[R]]
347 %R = getelementptr i32, i32* %X, i32 %Idx
352 define i1 @test17(i16* %P, i32 %I, i32 %J) {
353 ; CHECK-LABEL: @test17(
354 ; CHECK-NEXT: [[C:%.*]] = icmp slt i32 [[I:%.*]], [[J:%.*]]
355 ; CHECK-NEXT: ret i1 [[C]]
357 %X = getelementptr inbounds i16, i16* %P, i32 %I
358 %Y = getelementptr inbounds i16, i16* %P, i32 %J
359 %C = icmp ult i16* %X, %Y
363 define i1 @test18(i16* %P, i32 %I) {
364 ; CHECK-LABEL: @test18(
365 ; CHECK-NEXT: [[C:%.*]] = icmp slt i32 [[I:%.*]], 0
366 ; CHECK-NEXT: ret i1 [[C]]
368 %X = getelementptr inbounds i16, i16* %P, i32 %I
369 %C = icmp ult i16* %X, %P
373 ; Larger than the pointer size for a non-zero address space
374 define i1 @test18_as1(i16 addrspace(1)* %P, i32 %I) {
375 ; CHECK-LABEL: @test18_as1(
376 ; CHECK-NEXT: [[TMP1:%.*]] = and i32 [[I:%.*]], 32768
377 ; CHECK-NEXT: [[C:%.*]] = icmp ne i32 [[TMP1]], 0
378 ; CHECK-NEXT: ret i1 [[C]]
380 %X = getelementptr inbounds i16, i16 addrspace(1)* %P, i32 %I
381 %C = icmp ult i16 addrspace(1)* %X, %P
385 ; Smaller than the pointer size for a non-zero address space
386 define i1 @test18_as1_i32(i16 addrspace(1)* %P, i32 %I) {
387 ; CHECK-LABEL: @test18_as1_i32(
388 ; CHECK-NEXT: [[TMP1:%.*]] = and i32 [[I:%.*]], 32768
389 ; CHECK-NEXT: [[C:%.*]] = icmp ne i32 [[TMP1]], 0
390 ; CHECK-NEXT: ret i1 [[C]]
392 %X = getelementptr inbounds i16, i16 addrspace(1)* %P, i32 %I
393 %C = icmp ult i16 addrspace(1)* %X, %P
397 ; Smaller than pointer size
398 define i1 @test18_i16(i16* %P, i16 %I) {
399 ; CHECK-LABEL: @test18_i16(
400 ; CHECK-NEXT: [[C:%.*]] = icmp slt i16 [[I:%.*]], 0
401 ; CHECK-NEXT: ret i1 [[C]]
403 %X = getelementptr inbounds i16, i16* %P, i16 %I
404 %C = icmp ult i16* %X, %P
408 ; Same as pointer size
409 define i1 @test18_i64(i16* %P, i64 %I) {
410 ; CHECK-LABEL: @test18_i64(
411 ; CHECK-NEXT: [[C:%.*]] = icmp slt i64 [[I:%.*]], 0
412 ; CHECK-NEXT: ret i1 [[C]]
414 %X = getelementptr inbounds i16, i16* %P, i64 %I
415 %C = icmp ult i16* %X, %P
419 ; Larger than the pointer size
420 define i1 @test18_i128(i16* %P, i128 %I) {
421 ; CHECK-LABEL: @test18_i128(
422 ; CHECK-NEXT: [[TMP1:%.*]] = and i128 [[I:%.*]], 9223372036854775808
423 ; CHECK-NEXT: [[C:%.*]] = icmp ne i128 [[TMP1]], 0
424 ; CHECK-NEXT: ret i1 [[C]]
426 %X = getelementptr inbounds i16, i16* %P, i128 %I
427 %C = icmp ult i16* %X, %P
431 define i32 @test19(i32* %P, i32 %A, i32 %B) {
432 ; CHECK-LABEL: @test19(
433 ; CHECK-NEXT: [[T10:%.*]] = icmp eq i32 [[A:%.*]], [[B:%.*]]
434 ; CHECK-NEXT: [[T11:%.*]] = zext i1 [[T10]] to i32
435 ; CHECK-NEXT: ret i32 [[T11]]
437 %t4 = getelementptr inbounds i32, i32* %P, i32 %A
438 %t9 = getelementptr inbounds i32, i32* %P, i32 %B
439 %t10 = icmp eq i32* %t4, %t9
440 %t11 = zext i1 %t10 to i32
444 define i32 @test20(i32* %P, i32 %A, i32 %B) {
445 ; CHECK-LABEL: @test20(
446 ; CHECK-NEXT: [[T6:%.*]] = icmp eq i32 [[A:%.*]], 0
447 ; CHECK-NEXT: [[T7:%.*]] = zext i1 [[T6]] to i32
448 ; CHECK-NEXT: ret i32 [[T7]]
450 %t4 = getelementptr inbounds i32, i32* %P, i32 %A
451 %t6 = icmp eq i32* %t4, %P
452 %t7 = zext i1 %t6 to i32
456 define i32 @test20_as1(i32 addrspace(1)* %P, i32 %A, i32 %B) {
457 ; CHECK-LABEL: @test20_as1(
458 ; CHECK-NEXT: [[TMP1:%.*]] = trunc i32 [[A:%.*]] to i16
459 ; CHECK-NEXT: [[T6:%.*]] = icmp eq i16 [[TMP1]], 0
460 ; CHECK-NEXT: [[T7:%.*]] = zext i1 [[T6]] to i32
461 ; CHECK-NEXT: ret i32 [[T7]]
463 %t4 = getelementptr inbounds i32, i32 addrspace(1)* %P, i32 %A
464 %t6 = icmp eq i32 addrspace(1)* %t4, %P
465 %t7 = zext i1 %t6 to i32
470 define i32 @test21() {
471 ; CHECK-LABEL: @test21(
472 ; CHECK-NEXT: [[PBOB1:%.*]] = alloca [[INTSTRUCT:%.*]], align 8
473 ; CHECK-NEXT: [[PBOBEL:%.*]] = getelementptr inbounds [[INTSTRUCT]], %intstruct* [[PBOB1]], i64 0, i32 0
474 ; CHECK-NEXT: [[RVAL:%.*]] = load i32, i32* [[PBOBEL]], align 8
475 ; CHECK-NEXT: ret i32 [[RVAL]]
477 %pbob1 = alloca %intstruct
478 %pbob2 = getelementptr %intstruct, %intstruct* %pbob1
479 %pbobel = getelementptr %intstruct, %intstruct* %pbob2, i64 0, i32 0
480 %rval = load i32, i32* %pbobel
485 @A = global i32 1 ; <i32*> [#uses=1]
486 @B = global i32 2 ; <i32*> [#uses=1]
488 define i1 @test22() {
489 ; CHECK-LABEL: @test22(
490 ; CHECK-NEXT: ret i1 icmp ult (i32* getelementptr inbounds (i32, i32* @A, i64 1), i32* getelementptr (i32, i32* @B, i64 2))
492 %C = icmp ult i32* getelementptr (i32, i32* @A, i64 1),
493 getelementptr (i32, i32* @B, i64 2)
498 %X = type { [10 x i32], float }
500 define i1 @test23() {
501 ; CHECK-LABEL: @test23(
502 ; CHECK-NEXT: ret i1 false
504 %A = getelementptr %X, %X* null, i64 0, i32 0, i64 0 ; <i32*> [#uses=1]
505 %B = icmp ne i32* %A, null ; <i1> [#uses=1]
509 define void @test25() {
510 ; CHECK-LABEL: @test25(
512 ; CHECK-NEXT: store i64 poison, i64* null, align 4294967296
513 ; CHECK-NEXT: tail call void @foo25(i32 0, i64 poison)
514 ; CHECK-NEXT: unreachable
517 %t = getelementptr { i64, i64, i64, i64 }, { i64, i64, i64, i64 }* null, i32 0, i32 3
518 %t.upgrd.1 = load i64, i64* %t
519 %t8.ui = load i64, i64* null
520 %t8 = bitcast i64 %t8.ui to i64
521 %t9 = and i64 %t8, %t.upgrd.1
522 %sext = trunc i64 %t9 to i32
523 %t27.i = sext i32 %sext to i64
524 tail call void @foo25( i32 0, i64 %t27.i )
528 declare void @foo25(i32, i64)
532 define i1 @test26(i8* %arr) {
533 ; CHECK-LABEL: @test26(
534 ; CHECK-NEXT: ret i1 true
536 %X = getelementptr i8, i8* %arr, i32 1
537 %Y = getelementptr i8, i8* %arr, i32 1
538 %test = icmp uge i8* %X, %Y
542 %struct.__large_struct = type { [100 x i64] }
543 %struct.compat_siginfo = type { i32, i32, i32, { [29 x i32] } }
544 %struct.siginfo_t = type { i32, i32, i32, { { i32, i32, [0 x i8], %struct.sigval_t, i32 }, [88 x i8] } }
545 %struct.sigval_t = type { i8* }
547 define i32 @test27(%struct.compat_siginfo* %to, %struct.siginfo_t* %from) {
548 ; CHECK-LABEL: @test27(
550 ; CHECK-NEXT: [[FROM_ADDR:%.*]] = alloca %struct.siginfo_t*, align 8
551 ; CHECK-NEXT: [[T344:%.*]] = load %struct.siginfo_t*, %struct.siginfo_t** [[FROM_ADDR]], align 8
552 ; CHECK-NEXT: [[T349:%.*]] = getelementptr [[STRUCT_SIGINFO_T:%.*]], %struct.siginfo_t* [[T344]], i64 0, i32 3, i32 0, i32 3, i32 0
553 ; CHECK-NEXT: [[T349350:%.*]] = bitcast i8** [[T349]] to i32*
554 ; CHECK-NEXT: [[T351:%.*]] = load i32, i32* [[T349350]], align 8
555 ; CHECK-NEXT: [[T360:%.*]] = call i32 asm sideeffect "...", "=r,ir,*m,i,0,~{dirflag},~{fpsr},~{flags}"(i32 [[T351]], %struct.__large_struct* elementtype(%struct.__large_struct) null, i32 -14, i32 0) #[[ATTR0:[0-9]+]]
556 ; CHECK-NEXT: unreachable
559 %from_addr = alloca %struct.siginfo_t*
560 %t344 = load %struct.siginfo_t*, %struct.siginfo_t** %from_addr, align 8
561 %t345 = getelementptr %struct.siginfo_t, %struct.siginfo_t* %t344, i32 0, i32 3
562 %t346 = getelementptr { { i32, i32, [0 x i8], %struct.sigval_t, i32 }, [88 x i8] }, { { i32, i32, [0 x i8], %struct.sigval_t, i32 }, [88 x i8] }* %t345, i32 0, i32 0
563 %t346347 = bitcast { i32, i32, [0 x i8], %struct.sigval_t, i32 }* %t346 to { i32, i32, %struct.sigval_t }*
564 %t348 = getelementptr { i32, i32, %struct.sigval_t }, { i32, i32, %struct.sigval_t }* %t346347, i32 0, i32 2
565 %t349 = getelementptr %struct.sigval_t, %struct.sigval_t* %t348, i32 0, i32 0
566 %t349350 = bitcast i8** %t349 to i32*
567 %t351 = load i32, i32* %t349350, align 8
568 %t360 = call i32 asm sideeffect "...",
569 "=r,ir,*m,i,0,~{dirflag},~{fpsr},~{flags}"( i32 %t351, %struct.__large_struct* elementtype(%struct.__large_struct) null, i32 -14, i32 0 )
574 %struct.x = type <{ i8 }>
575 @.str = internal constant [6 x i8] c"Main!\00"
576 @.str1 = internal constant [12 x i8] c"destroy %p\0A\00"
578 define i32 @test28() nounwind {
579 ; CHECK-LABEL: @test28(
581 ; CHECK-NEXT: [[ORIENTATIONS:%.*]] = alloca [1 x [1 x %struct.x]], align 8
582 ; CHECK-NEXT: [[T3:%.*]] = call i32 @puts(i8* noundef nonnull dereferenceable(1) getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0)) #[[ATTR0]]
583 ; CHECK-NEXT: br label [[BB10:%.*]]
585 ; CHECK-NEXT: [[INDVAR:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[INDVAR_NEXT:%.*]], [[BB10]] ]
586 ; CHECK-NEXT: [[T12_REC:%.*]] = xor i32 [[INDVAR]], -1
587 ; CHECK-NEXT: [[TMP0:%.*]] = sext i32 [[T12_REC]] to i64
588 ; CHECK-NEXT: [[T12:%.*]] = getelementptr inbounds [1 x [1 x %struct.x]], [1 x [1 x %struct.x]]* [[ORIENTATIONS]], i64 1, i64 0, i64 [[TMP0]]
589 ; CHECK-NEXT: [[T16:%.*]] = call i32 (i8*, ...) @printf(i8* noundef nonnull dereferenceable(1) getelementptr inbounds ([12 x i8], [12 x i8]* @.str1, i64 0, i64 0), %struct.x* nonnull [[T12]]) #[[ATTR0]]
590 ; CHECK-NEXT: [[T84:%.*]] = icmp eq i32 [[INDVAR]], 0
591 ; CHECK-NEXT: [[INDVAR_NEXT]] = add i32 [[INDVAR]], 1
592 ; CHECK-NEXT: br i1 [[T84]], label [[BB17:%.*]], label [[BB10]]
594 ; CHECK-NEXT: ret i32 0
597 %orientations = alloca [1 x [1 x %struct.x]]
598 %t3 = call i32 @puts( i8* getelementptr ([6 x i8], [6 x i8]* @.str, i32 0, i32 0) ) nounwind
599 %t45 = getelementptr inbounds [1 x [1 x %struct.x]], [1 x [1 x %struct.x]]* %orientations, i32 1, i32 0, i32 0
600 %orientations62 = getelementptr [1 x [1 x %struct.x]], [1 x [1 x %struct.x]]* %orientations, i32 0, i32 0, i32 0
604 %indvar = phi i32 [ 0, %entry ], [ %indvar.next, %bb10 ]
605 %t.0.reg2mem.0.rec = mul i32 %indvar, -1
606 %t12.rec = add i32 %t.0.reg2mem.0.rec, -1
607 %t12 = getelementptr inbounds %struct.x, %struct.x* %t45, i32 %t12.rec
608 %t16 = call i32 (i8*, ...) @printf( i8* nonnull dereferenceable(1) getelementptr ([12 x i8], [12 x i8]* @.str1, i32 0, i32 0), %struct.x* %t12 ) nounwind
609 %t84 = icmp eq %struct.x* %t12, %orientations62
610 %indvar.next = add i32 %indvar, 1
611 br i1 %t84, label %bb17, label %bb10
617 declare i32 @puts(i8*)
619 declare i32 @printf(i8*, ...)
625 %T = type <{ i64, i64, i64 }>
626 define i32 @test29(i8* %start, i32 %X) nounwind {
627 ; CHECK-LABEL: @test29(
629 ; CHECK-NEXT: store i64 poison, i64* null, align 4294967296
630 ; CHECK-NEXT: br i1 poison, label [[IF_THEN216:%.*]], label [[IF_END363:%.*]]
632 ; CHECK-NEXT: ret i32 1
634 ; CHECK-NEXT: ret i32 0
637 %t3 = load i64, i64* null
638 %add.ptr = getelementptr i8, i8* %start, i64 %t3
639 %t158 = load i32, i32* null
640 %add.ptr159 = getelementptr %T, %T* null, i32 %t158
641 %add.ptr209 = getelementptr i8, i8* %start, i64 0
642 %add.ptr212 = getelementptr i8, i8* %add.ptr209, i32 %X
643 %cmp214 = icmp ugt i8* %add.ptr212, %add.ptr
644 br i1 %cmp214, label %if.then216, label %if.end363
655 define i32 @test30(i32 %m, i32 %n) nounwind {
656 ; CHECK-LABEL: @test30(
658 ; CHECK-NEXT: [[TMP0:%.*]] = zext i32 [[N:%.*]] to i64
659 ; CHECK-NEXT: [[TMP1:%.*]] = alloca i32, i64 [[TMP0]], align 4
660 ; CHECK-NEXT: call void @test30f(i32* nonnull [[TMP1]]) #[[ATTR0]]
661 ; CHECK-NEXT: [[TMP2:%.*]] = sext i32 [[M:%.*]] to i64
662 ; CHECK-NEXT: [[TMP3:%.*]] = getelementptr i32, i32* [[TMP1]], i64 [[TMP2]]
663 ; CHECK-NEXT: [[TMP4:%.*]] = load i32, i32* [[TMP3]], align 4
664 ; CHECK-NEXT: ret i32 [[TMP4]]
667 %0 = alloca i32, i32 %n, align 4
668 %1 = bitcast i32* %0 to [0 x i32]*
669 call void @test30f(i32* %0) nounwind
670 %2 = getelementptr [0 x i32], [0 x i32]* %1, i32 0, i32 %m
671 %3 = load i32, i32* %2, align 4
675 declare void @test30f(i32*)
679 define i1 @test31(i32* %A) {
680 ; CHECK-LABEL: @test31(
681 ; CHECK-NEXT: ret i1 true
683 %B = getelementptr i32, i32* %A, i32 1
684 %C = getelementptr i32, i32* %A, i64 1
685 %V = icmp eq i32* %B, %C
691 define i8* @test32(i8* %v) {
692 ; CHECK-LABEL: @test32(
693 ; CHECK-NEXT: [[A:%.*]] = alloca [4 x i8*], align 16
694 ; CHECK-NEXT: [[B:%.*]] = getelementptr inbounds [4 x i8*], [4 x i8*]* [[A]], i64 0, i64 0
695 ; CHECK-NEXT: store i8* null, i8** [[B]], align 16
696 ; CHECK-NEXT: [[D:%.*]] = getelementptr inbounds [4 x i8*], [4 x i8*]* [[A]], i64 0, i64 1
697 ; CHECK-NEXT: store i8* [[V:%.*]], i8** [[D]], align 8
698 ; CHECK-NEXT: [[F:%.*]] = getelementptr inbounds [4 x i8*], [4 x i8*]* [[A]], i64 0, i64 2
699 ; CHECK-NEXT: [[G:%.*]] = load i8*, i8** [[F]], align 16
700 ; CHECK-NEXT: ret i8* [[G]]
702 %A = alloca [4 x i8*], align 16
703 %B = getelementptr [4 x i8*], [4 x i8*]* %A, i32 0, i32 0
704 store i8* null, i8** %B
705 %C = bitcast [4 x i8*]* %A to { [16 x i8] }*
706 %D = getelementptr { [16 x i8] }, { [16 x i8] }* %C, i32 0, i32 0, i32 8
707 %E = bitcast i8* %D to i8**
708 store i8* %v, i8** %E
709 %F = getelementptr [4 x i8*], [4 x i8*]* %A, i32 0, i32 2
710 %G = load i8*, i8** %F
715 %struct.Key = type { { i32, i32 } }
716 %struct.anon = type <{ i8, [3 x i8], i32 }>
718 define i32* @test33(%struct.Key* %A) {
719 ; CHECK-LABEL: @test33(
720 ; CHECK-NEXT: [[TMP1:%.*]] = getelementptr [[STRUCT_KEY:%.*]], %struct.Key* [[A:%.*]], i64 0, i32 0, i32 1
721 ; CHECK-NEXT: ret i32* [[TMP1]]
723 %B = bitcast %struct.Key* %A to %struct.anon*
724 %C = getelementptr %struct.anon, %struct.anon* %B, i32 0, i32 2
728 define i32 addrspace(1)* @test33_as1(%struct.Key addrspace(1)* %A) {
729 ; CHECK-LABEL: @test33_as1(
730 ; CHECK-NEXT: [[TMP1:%.*]] = getelementptr [[STRUCT_KEY:%.*]], [[STRUCT_KEY]] addrspace(1)* [[A:%.*]], i16 0, i32 0, i32 1
731 ; CHECK-NEXT: ret i32 addrspace(1)* [[TMP1]]
733 %B = bitcast %struct.Key addrspace(1)* %A to %struct.anon addrspace(1)*
734 %C = getelementptr %struct.anon, %struct.anon addrspace(1)* %B, i32 0, i32 2
735 ret i32 addrspace(1)* %C
738 define i32 addrspace(1)* @test33_array_as1([10 x i32] addrspace(1)* %A) {
739 ; CHECK-LABEL: @test33_array_as1(
740 ; CHECK-NEXT: [[C:%.*]] = getelementptr [10 x i32], [10 x i32] addrspace(1)* [[A:%.*]], i16 0, i16 2
741 ; CHECK-NEXT: ret i32 addrspace(1)* [[C]]
743 %B = bitcast [10 x i32] addrspace(1)* %A to [5 x i32] addrspace(1)*
744 %C = getelementptr [5 x i32], [5 x i32] addrspace(1)* %B, i32 0, i32 2
745 ret i32 addrspace(1)* %C
748 ; Make sure the GEP indices use the right pointer sized integer
749 define i32 addrspace(1)* @test33_array_struct_as1([10 x %struct.Key] addrspace(1)* %A) {
750 ; CHECK-LABEL: @test33_array_struct_as1(
751 ; CHECK-NEXT: [[TMP1:%.*]] = getelementptr [10 x %struct.Key], [10 x %struct.Key] addrspace(1)* [[A:%.*]], i16 0, i16 1, i32 0, i32 0
752 ; CHECK-NEXT: ret i32 addrspace(1)* [[TMP1]]
754 %B = bitcast [10 x %struct.Key] addrspace(1)* %A to [20 x i32] addrspace(1)*
755 %C = getelementptr [20 x i32], [20 x i32] addrspace(1)* %B, i32 0, i32 2
756 ret i32 addrspace(1)* %C
759 define i32 addrspace(1)* @test33_addrspacecast(%struct.Key* %A) {
760 ; CHECK-LABEL: @test33_addrspacecast(
761 ; CHECK-NEXT: [[C:%.*]] = getelementptr [[STRUCT_KEY:%.*]], %struct.Key* [[A:%.*]], i64 0, i32 0, i32 1
762 ; CHECK-NEXT: [[TMP1:%.*]] = addrspacecast i32* [[C]] to i32 addrspace(1)*
763 ; CHECK-NEXT: ret i32 addrspace(1)* [[TMP1]]
765 %B = addrspacecast %struct.Key* %A to %struct.anon addrspace(1)*
766 %C = getelementptr %struct.anon, %struct.anon addrspace(1)* %B, i32 0, i32 2
767 ret i32 addrspace(1)* %C
770 %T2 = type { i8*, i8 }
771 define i8* @test34(i8* %Val, i64 %V) nounwind {
772 ; CHECK-LABEL: @test34(
774 ; CHECK-NEXT: [[C_CAST:%.*]] = inttoptr i64 [[V:%.*]] to i8*
775 ; CHECK-NEXT: ret i8* [[C_CAST]]
778 %A = alloca %T2, align 8
779 %mrv_gep = bitcast %T2* %A to i64*
780 %B = getelementptr %T2, %T2* %A, i64 0, i32 0
782 store i64 %V, i64* %mrv_gep
783 %C = load i8*, i8** %B, align 8
787 %t0 = type { i8*, [19 x i8] }
788 %t1 = type { i8*, [0 x i8] }
790 @array = external global [11 x i8]
792 @s = external global %t0
793 @"\01LC8" = external constant [17 x i8]
795 ; Instcombine should be able to fold this getelementptr.
797 define i32 @test35() nounwind {
798 ; CHECK-LABEL: @test35(
799 ; CHECK-NEXT: [[TMP1:%.*]] = call i32 (i8*, ...) @printf(i8* noundef nonnull dereferenceable(1) getelementptr inbounds ([17 x i8], [17 x i8]* @"\01LC8", i64 0, i64 0), i8* getelementptr inbounds ([[T0:%.*]], %t0* @s, i64 0, i32 1, i64 0)) #[[ATTR0]]
800 ; CHECK-NEXT: ret i32 0
802 call i32 (i8*, ...) @printf(i8* getelementptr ([17 x i8], [17 x i8]* @"\01LC8", i32 0, i32 0),
803 i8* getelementptr (%t1, %t1* bitcast (%t0* @s to %t1*), i32 0, i32 1, i32 0)) nounwind
807 ; Don't treat signed offsets as unsigned.
808 define i8* @test36() nounwind {
809 ; CHECK-LABEL: @test36(
810 ; CHECK-NEXT: ret i8* getelementptr ([11 x i8], [11 x i8]* @array, i64 -1, i64 10)
812 ret i8* getelementptr ([11 x i8], [11 x i8]* @array, i32 0, i64 -1)
815 ; Instcombine shouldn't assume that gep(A,0,1) != gep(A,1,0).
816 @A37 = external constant [1 x i8]
817 define i1 @test37() nounwind {
818 ; CHECK-LABEL: @test37(
819 ; CHECK-NEXT: ret i1 true
821 %t = icmp eq i8* getelementptr ([1 x i8], [1 x i8]* @A37, i64 0, i64 1),
822 getelementptr ([1 x i8], [1 x i8]* @A37, i64 1, i64 0)
826 ; Test index promotion
827 define i32* @test38(i32* %I, i32 %n) {
828 ; CHECK-LABEL: @test38(
829 ; CHECK-NEXT: [[TMP1:%.*]] = sext i32 [[N:%.*]] to i64
830 ; CHECK-NEXT: [[A:%.*]] = getelementptr i32, i32* [[I:%.*]], i64 [[TMP1]]
831 ; CHECK-NEXT: ret i32* [[A]]
833 %A = getelementptr i32, i32* %I, i32 %n
837 ; Test that we don't duplicate work when the second gep is a "bitcast".
838 %pr10322_t = type { i8* }
839 declare void @pr10322_f2(%pr10322_t*)
840 declare void @pr10322_f3(i8**)
841 define void @pr10322_f1(%pr10322_t* %foo) {
842 ; CHECK-LABEL: @pr10322_f1(
844 ; CHECK-NEXT: [[ARRAYIDX8:%.*]] = getelementptr inbounds [[PR10322_T:%.*]], %pr10322_t* [[FOO:%.*]], i64 2
845 ; CHECK-NEXT: call void @pr10322_f2(%pr10322_t* nonnull [[ARRAYIDX8]]) #[[ATTR0]]
846 ; CHECK-NEXT: [[T2:%.*]] = getelementptr inbounds [[PR10322_T]], %pr10322_t* [[ARRAYIDX8]], i64 0, i32 0
847 ; CHECK-NEXT: call void @pr10322_f3(i8** nonnull [[T2]]) #[[ATTR0]]
848 ; CHECK-NEXT: ret void
851 %arrayidx8 = getelementptr inbounds %pr10322_t, %pr10322_t* %foo, i64 2
852 call void @pr10322_f2(%pr10322_t* %arrayidx8) nounwind
853 %t2 = getelementptr inbounds %pr10322_t, %pr10322_t* %arrayidx8, i64 0, i32 0
854 call void @pr10322_f3(i8** %t2) nounwind
859 ; Test that we combine the last two geps in this sequence, before we
860 ; would wait for gep1 and gep2 to be combined and never combine 2 and 3.
861 %three_gep_t = type {i32}
862 %three_gep_t2 = type {%three_gep_t}
864 define void @three_gep_f(%three_gep_t2* %x) {
865 ; CHECK-LABEL: @three_gep_f(
866 ; CHECK-NEXT: [[GEP1:%.*]] = getelementptr [[THREE_GEP_T2:%.*]], %three_gep_t2* [[X:%.*]], i64 2
867 ; CHECK-NEXT: call void @three_gep_h(%three_gep_t2* [[GEP1]])
868 ; CHECK-NEXT: [[GEP3:%.*]] = getelementptr [[THREE_GEP_T2]], %three_gep_t2* [[GEP1]], i64 0, i32 0, i32 0
869 ; CHECK-NEXT: call void @three_gep_g(i32* [[GEP3]])
870 ; CHECK-NEXT: ret void
872 %gep1 = getelementptr %three_gep_t2, %three_gep_t2* %x, i64 2
873 call void @three_gep_h(%three_gep_t2* %gep1)
874 %gep2 = getelementptr %three_gep_t2, %three_gep_t2* %gep1, i64 0, i32 0
875 %gep3 = getelementptr %three_gep_t, %three_gep_t* %gep2, i64 0, i32 0
876 call void @three_gep_g(i32* %gep3)
881 declare void @three_gep_g(i32*)
882 declare void @three_gep_h(%three_gep_t2*)
884 %struct.ham = type { i32, %struct.zot*, %struct.zot*, %struct.zot* }
885 %struct.zot = type { i64, i8 }
887 define void @test39(%struct.ham* %arg, i8 %arg1) nounwind {
888 ; CHECK-LABEL: @test39(
889 ; CHECK-NEXT: [[T:%.*]] = getelementptr inbounds [[STRUCT_HAM:%.*]], %struct.ham* [[ARG:%.*]], i64 0, i32 2
890 ; CHECK-NEXT: [[TMP1:%.*]] = bitcast %struct.zot** [[T]] to i8**
891 ; CHECK-NEXT: [[T21:%.*]] = load i8*, i8** [[TMP1]], align 8
892 ; CHECK-NEXT: [[T4:%.*]] = getelementptr inbounds i8, i8* [[T21]], i64 -8
893 ; CHECK-NEXT: store i8 [[ARG1:%.*]], i8* [[T4]], align 8
894 ; CHECK-NEXT: ret void
896 %t = getelementptr inbounds %struct.ham, %struct.ham* %arg, i64 0, i32 2
897 %t2 = load %struct.zot*, %struct.zot** %t, align 8
898 %t3 = bitcast %struct.zot* %t2 to i8*
899 %t4 = getelementptr inbounds i8, i8* %t3, i64 -8
900 store i8 %arg1, i8* %t4, align 8
905 define i1 @pr16483([1 x i8]* %a, [1 x i8]* %b) {
906 ; CHECK-LABEL: @pr16483(
907 ; CHECK-NEXT: [[CMP:%.*]] = icmp ult [1 x i8]* [[A:%.*]], [[B:%.*]]
908 ; CHECK-NEXT: ret i1 [[CMP]]
910 %c = getelementptr [1 x i8], [1 x i8]* %a, i32 0, i32 0
911 %d = getelementptr [1 x i8], [1 x i8]* %b, i32 0, i32 0
912 %cmp = icmp ult i8* %c, %d
917 define i8 @test_gep_bitcast_as1(i32 addrspace(1)* %arr, i16 %N) {
918 ; CHECK-LABEL: @test_gep_bitcast_as1(
919 ; CHECK-NEXT: [[T1:%.*]] = getelementptr i32, i32 addrspace(1)* [[ARR:%.*]], i16 [[N:%.*]]
920 ; CHECK-NEXT: [[T:%.*]] = bitcast i32 addrspace(1)* [[T1]] to i8 addrspace(1)*
921 ; CHECK-NEXT: [[X:%.*]] = load i8, i8 addrspace(1)* [[T]], align 1
922 ; CHECK-NEXT: ret i8 [[X]]
924 %cast = bitcast i32 addrspace(1)* %arr to i8 addrspace(1)*
926 %t = getelementptr i8, i8 addrspace(1)* %cast, i16 %V
927 %x = load i8, i8 addrspace(1)* %t
931 ; The element size of the array matches the element size of the pointer
932 define i64 @test_gep_bitcast_array_same_size_element([100 x double]* %arr, i64 %N) {
933 ; CHECK-LABEL: @test_gep_bitcast_array_same_size_element(
934 ; CHECK-NEXT: [[V:%.*]] = shl i64 [[N:%.*]], 3
935 ; CHECK-NEXT: [[T1:%.*]] = getelementptr [100 x double], [100 x double]* [[ARR:%.*]], i64 0, i64 [[V]]
936 ; CHECK-NEXT: [[T:%.*]] = bitcast double* [[T1]] to i64*
937 ; CHECK-NEXT: [[X:%.*]] = load i64, i64* [[T]], align 4
938 ; CHECK-NEXT: ret i64 [[X]]
940 %cast = bitcast [100 x double]* %arr to i64*
942 %t = getelementptr i64, i64* %cast, i64 %V
943 %x = load i64, i64* %t
947 ; gep should be done in the original address space.
948 define i64 @test_gep_bitcast_array_same_size_element_addrspacecast([100 x double]* %arr, i64 %N) {
949 ; CHECK-LABEL: @test_gep_bitcast_array_same_size_element_addrspacecast(
950 ; CHECK-NEXT: [[V:%.*]] = shl i64 [[N:%.*]], 3
951 ; CHECK-NEXT: [[T1:%.*]] = getelementptr [100 x double], [100 x double]* [[ARR:%.*]], i64 0, i64 [[V]]
952 ; CHECK-NEXT: [[TMP1:%.*]] = bitcast double* [[T1]] to i64*
953 ; CHECK-NEXT: [[T:%.*]] = addrspacecast i64* [[TMP1]] to i64 addrspace(3)*
954 ; CHECK-NEXT: [[X:%.*]] = load i64, i64 addrspace(3)* [[T]], align 4
955 ; CHECK-NEXT: ret i64 [[X]]
957 %cast = addrspacecast [100 x double]* %arr to i64 addrspace(3)*
959 %t = getelementptr i64, i64 addrspace(3)* %cast, i64 %V
960 %x = load i64, i64 addrspace(3)* %t
964 ; The element size of the array is different the element size of the pointer
965 define i8 @test_gep_bitcast_array_different_size_element([100 x double]* %arr, i64 %N) {
966 ; CHECK-LABEL: @test_gep_bitcast_array_different_size_element(
967 ; CHECK-NEXT: [[T1:%.*]] = getelementptr [100 x double], [100 x double]* [[ARR:%.*]], i64 0, i64 [[N:%.*]]
968 ; CHECK-NEXT: [[T:%.*]] = bitcast double* [[T1]] to i8*
969 ; CHECK-NEXT: [[X:%.*]] = load i8, i8* [[T]], align 1
970 ; CHECK-NEXT: ret i8 [[X]]
972 %cast = bitcast [100 x double]* %arr to i8*
974 %t = getelementptr i8, i8* %cast, i64 %V
979 define i64 @test_gep_bitcast_array_same_size_element_as1([100 x double] addrspace(1)* %arr, i16 %N) {
980 ; CHECK-LABEL: @test_gep_bitcast_array_same_size_element_as1(
981 ; CHECK-NEXT: [[V:%.*]] = shl i16 [[N:%.*]], 3
982 ; CHECK-NEXT: [[T1:%.*]] = getelementptr [100 x double], [100 x double] addrspace(1)* [[ARR:%.*]], i16 0, i16 [[V]]
983 ; CHECK-NEXT: [[T:%.*]] = bitcast double addrspace(1)* [[T1]] to i64 addrspace(1)*
984 ; CHECK-NEXT: [[X:%.*]] = load i64, i64 addrspace(1)* [[T]], align 4
985 ; CHECK-NEXT: ret i64 [[X]]
987 %cast = bitcast [100 x double] addrspace(1)* %arr to i64 addrspace(1)*
989 %t = getelementptr i64, i64 addrspace(1)* %cast, i16 %V
990 %x = load i64, i64 addrspace(1)* %t
994 define i8 @test_gep_bitcast_array_different_size_element_as1([100 x double] addrspace(1)* %arr, i16 %N) {
995 ; CHECK-LABEL: @test_gep_bitcast_array_different_size_element_as1(
996 ; CHECK-NEXT: [[T1:%.*]] = getelementptr [100 x double], [100 x double] addrspace(1)* [[ARR:%.*]], i16 0, i16 [[N:%.*]]
997 ; CHECK-NEXT: [[T:%.*]] = bitcast double addrspace(1)* [[T1]] to i8 addrspace(1)*
998 ; CHECK-NEXT: [[X:%.*]] = load i8, i8 addrspace(1)* [[T]], align 1
999 ; CHECK-NEXT: ret i8 [[X]]
1001 %cast = bitcast [100 x double] addrspace(1)* %arr to i8 addrspace(1)*
1003 %t = getelementptr i8, i8 addrspace(1)* %cast, i16 %V
1004 %x = load i8, i8 addrspace(1)* %t
1008 define i64 @test40() {
1009 ; CHECK-LABEL: @test40(
1010 ; CHECK-NEXT: ret i64 8
1012 %array = alloca [3 x i32], align 4
1013 %gep = getelementptr inbounds [3 x i32], [3 x i32]* %array, i64 0, i64 2
1014 %gepi8 = bitcast i32* %gep to i8*
1015 %p = ptrtoint [3 x i32]* %array to i64
1017 %gep2 = getelementptr i8, i8* %gepi8, i64 %np
1018 %ret = ptrtoint i8* %gep2 to i64
1023 define i16 @test41([3 x i32] addrspace(1)* %array) {
1024 ; CHECK-LABEL: @test41(
1025 ; CHECK-NEXT: ret i16 8
1027 %gep = getelementptr inbounds [3 x i32], [3 x i32] addrspace(1)* %array, i16 0, i16 2
1028 %gepi8 = bitcast i32 addrspace(1)* %gep to i8 addrspace(1)*
1029 %p = ptrtoint [3 x i32] addrspace(1)* %array to i16
1031 %gep2 = getelementptr i8, i8 addrspace(1)* %gepi8, i16 %np
1032 %ret = ptrtoint i8 addrspace(1)* %gep2 to i16
1037 define i8* @test42i(i8* %c1, i8* %c2) {
1038 ; CHECK-LABEL: @test42i(
1039 ; CHECK-NEXT: [[PTRTOINT:%.*]] = ptrtoint i8* [[C1:%.*]] to i64
1040 ; CHECK-NEXT: [[SUB:%.*]] = sub i64 0, [[PTRTOINT]]
1041 ; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds i8, i8* [[C2:%.*]], i64 [[SUB]]
1042 ; CHECK-NEXT: ret i8* [[GEP]]
1044 %ptrtoint = ptrtoint i8* %c1 to i64
1045 %sub = sub i64 0, %ptrtoint
1046 %gep = getelementptr inbounds i8, i8* %c2, i64 %sub
1051 define i8* @test42(i8* %c1, i8* %c2) {
1052 ; CHECK-LABEL: @test42(
1053 ; CHECK-NEXT: [[PTRTOINT:%.*]] = ptrtoint i8* [[C1:%.*]] to i64
1054 ; CHECK-NEXT: [[SUB:%.*]] = sub i64 0, [[PTRTOINT]]
1055 ; CHECK-NEXT: [[GEP:%.*]] = getelementptr i8, i8* [[C2:%.*]], i64 [[SUB]]
1056 ; CHECK-NEXT: ret i8* [[GEP]]
1058 %ptrtoint = ptrtoint i8* %c1 to i64
1059 %sub = sub i64 0, %ptrtoint
1060 %gep = getelementptr i8, i8* %c2, i64 %sub
1065 define i16* @test43i(i16* %c1, i16* %c2) {
1066 ; CHECK-LABEL: @test43i(
1067 ; CHECK-NEXT: [[PTRTOINT:%.*]] = ptrtoint i16* [[C1:%.*]] to i64
1068 ; CHECK-NEXT: [[SUB:%.*]] = sub i64 0, [[PTRTOINT]]
1069 ; CHECK-NEXT: [[SHR:%.*]] = ashr i64 [[SUB]], 1
1070 ; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds i16, i16* [[C2:%.*]], i64 [[SHR]]
1071 ; CHECK-NEXT: ret i16* [[GEP]]
1073 %ptrtoint = ptrtoint i16* %c1 to i64
1074 %sub = sub i64 0, %ptrtoint
1075 %shr = ashr i64 %sub, 1
1076 %gep = getelementptr inbounds i16, i16* %c2, i64 %shr
1081 define %struct.C* @test44i(%struct.C* %c1, %struct.C* %c2) {
1082 ; CHECK-LABEL: @test44i(
1083 ; CHECK-NEXT: [[PTRTOINT:%.*]] = ptrtoint %struct.C* [[C1:%.*]] to i64
1084 ; CHECK-NEXT: [[SUB:%.*]] = sub i64 0, [[PTRTOINT]]
1085 ; CHECK-NEXT: [[SHR:%.*]] = sdiv i64 [[SUB]], 7
1086 ; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds [[STRUCT_C:%.*]], %struct.C* [[C2:%.*]], i64 [[SHR]]
1087 ; CHECK-NEXT: ret %struct.C* [[GEP]]
1089 %ptrtoint = ptrtoint %struct.C* %c1 to i64
1090 %sub = sub i64 0, %ptrtoint
1091 %shr = sdiv i64 %sub, 7
1092 %gep = getelementptr inbounds %struct.C, %struct.C* %c2, i64 %shr
1097 define %struct.C* @test45(%struct.C* %c1, %struct.C** %c2) {
1098 ; CHECK-LABEL: @test45(
1099 ; CHECK-NEXT: [[PTRTOINT1:%.*]] = ptrtoint %struct.C* [[C1:%.*]] to i64
1100 ; CHECK-NEXT: [[PTRTOINT2:%.*]] = ptrtoint %struct.C** [[C2:%.*]] to i64
1101 ; CHECK-NEXT: [[SUB:%.*]] = sub i64 [[PTRTOINT2]], [[PTRTOINT1]]
1102 ; CHECK-NEXT: [[SHR:%.*]] = sdiv i64 [[SUB]], 7
1103 ; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds [[STRUCT_C:%.*]], %struct.C* [[C1]], i64 [[SHR]]
1104 ; CHECK-NEXT: ret %struct.C* [[GEP]]
1106 %ptrtoint1 = ptrtoint %struct.C* %c1 to i64
1107 %ptrtoint2 = ptrtoint %struct.C** %c2 to i64
1108 %sub = sub i64 %ptrtoint2, %ptrtoint1 ; C2 - C1
1109 %shr = sdiv i64 %sub, 7
1110 %gep = getelementptr inbounds %struct.C, %struct.C* %c1, i64 %shr ; C1 + (C2 - C1)
1114 define %struct.C* @test46(%struct.C* %c1, %struct.C* %c2, i64 %N) {
1115 ; CHECK-LABEL: @test46(
1116 ; CHECK-NEXT: [[PTRTOINT:%.*]] = ptrtoint %struct.C* [[C1:%.*]] to i64
1117 ; CHECK-NEXT: [[SUB:%.*]] = sub i64 0, [[PTRTOINT]]
1118 ; CHECK-NEXT: [[SDIV:%.*]] = sdiv i64 [[SUB]], [[N:%.*]]
1119 ; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds [[STRUCT_C:%.*]], %struct.C* [[C2:%.*]], i64 [[SDIV]]
1120 ; CHECK-NEXT: ret %struct.C* [[GEP]]
1122 %ptrtoint = ptrtoint %struct.C* %c1 to i64
1123 %sub = sub i64 0, %ptrtoint
1124 %sdiv = sdiv i64 %sub, %N
1125 %gep = getelementptr inbounds %struct.C, %struct.C* %c2, i64 %sdiv
1130 define i32* @test47(i32* %I, i64 %C, i64 %D) {
1131 ; CHECK-LABEL: @test47(
1132 ; CHECK-NEXT: [[B:%.*]] = getelementptr i32, i32* [[I:%.*]], i64 [[D:%.*]]
1133 ; CHECK-NEXT: ret i32* [[B]]
1135 %sub = sub i64 %D, %C
1136 %A = getelementptr i32, i32* %I, i64 %C
1137 %B = getelementptr i32, i32* %A, i64 %sub
1141 define i32* @test48(i32* %I, i64 %C, i64 %D) {
1142 ; CHECK-LABEL: @test48(
1143 ; CHECK-NEXT: [[B:%.*]] = getelementptr i32, i32* [[I:%.*]], i64 [[D:%.*]]
1144 ; CHECK-NEXT: ret i32* [[B]]
1146 %sub = sub i64 %D, %C
1147 %A = getelementptr i32, i32* %I, i64 %sub
1148 %B = getelementptr i32, i32* %A, i64 %C
1152 define i32* @test49(i32* %I, i64 %C) {
1153 ; CHECK-LABEL: @test49(
1154 ; CHECK-NEXT: [[B:%.*]] = getelementptr i32, i32* [[I:%.*]], i64 -1
1155 ; CHECK-NEXT: ret i32* [[B]]
1157 %notC = xor i64 -1, %C
1158 %A = getelementptr i32, i32* %I, i64 %C
1159 %B = getelementptr i32, i32* %A, i64 %notC
1163 define i32 addrspace(1)* @ascast_0_gep(i32* %p) nounwind {
1164 ; CHECK-LABEL: @ascast_0_gep(
1165 ; CHECK-NEXT: [[X:%.*]] = addrspacecast i32* [[P:%.*]] to i32 addrspace(1)*
1166 ; CHECK-NEXT: ret i32 addrspace(1)* [[X]]
1168 %gep = getelementptr i32, i32* %p, i32 0
1169 %x = addrspacecast i32* %gep to i32 addrspace(1)*
1170 ret i32 addrspace(1)* %x
1173 ; Do not merge the GEP and the addrspacecast, because it would undo the
1174 ; addrspacecast canonicalization.
1175 define i32 addrspace(1)* @ascast_0_0_gep([128 x i32]* %p) nounwind {
1176 ; CHECK-LABEL: @ascast_0_0_gep(
1177 ; CHECK-NEXT: [[GEP:%.*]] = getelementptr [128 x i32], [128 x i32]* [[P:%.*]], i64 0, i64 0
1178 ; CHECK-NEXT: [[X:%.*]] = addrspacecast i32* [[GEP]] to i32 addrspace(1)*
1179 ; CHECK-NEXT: ret i32 addrspace(1)* [[X]]
1181 %gep = getelementptr [128 x i32], [128 x i32]* %p, i32 0, i32 0
1182 %x = addrspacecast i32* %gep to i32 addrspace(1)*
1183 ret i32 addrspace(1)* %x
1186 define <2 x i32*> @PR32414(i32** %ptr) {
1187 ; CHECK-LABEL: @PR32414(
1188 ; CHECK-NEXT: [[T0:%.*]] = bitcast i32** [[PTR:%.*]] to i32*
1189 ; CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds i32, i32* [[T0]], <2 x i64> <i64 0, i64 1>
1190 ; CHECK-NEXT: ret <2 x i32*> [[T1]]
1192 %t0 = bitcast i32** %ptr to i32*
1193 %t1 = getelementptr inbounds i32, i32* %t0, <2 x i64> <i64 0, i64 1>
1197 define i32* @test_bitcast_nzgep([1 x i32]* %base, i64 %idx) {
1198 ; CHECK-LABEL: @test_bitcast_nzgep(
1199 ; CHECK-NEXT: [[PTR:%.*]] = getelementptr inbounds [1 x i32], [1 x i32]* [[BASE:%.*]], i64 0, i64 [[IDX:%.*]]
1200 ; CHECK-NEXT: ret i32* [[PTR]]
1202 %base2 = bitcast [1 x i32]* %base to i32*
1203 %ptr = getelementptr inbounds i32, i32* %base2, i64 %idx
1207 define i32* @test_zgep_nzgep([1 x i32]* %base, i64 %idx) {
1208 ; CHECK-LABEL: @test_zgep_nzgep(
1209 ; CHECK-NEXT: [[PTR:%.*]] = getelementptr inbounds [1 x i32], [1 x i32]* [[BASE:%.*]], i64 0, i64 [[IDX:%.*]]
1210 ; CHECK-NEXT: ret i32* [[PTR]]
1212 %base2 = getelementptr [1 x i32], [1 x i32]* %base, i64 0, i64 0
1213 %ptr = getelementptr inbounds i32, i32* %base2, i64 %idx
1217 define i32* @test_nzgep_zgep([1 x i32]* %base, i64 %idx) {
1218 ; CHECK-LABEL: @test_nzgep_zgep(
1219 ; CHECK-NEXT: [[PTR:%.*]] = getelementptr inbounds [1 x i32], [1 x i32]* [[BASE:%.*]], i64 [[IDX:%.*]], i64 0
1220 ; CHECK-NEXT: ret i32* [[PTR]]
1222 %base2 = getelementptr inbounds [1 x i32], [1 x i32]* %base, i64 %idx
1223 %ptr = getelementptr [1 x i32], [1 x i32]* %base2, i64 0, i64 0
1227 define i32* @test_gep_inbounds_of_gep(i32* %base) {
1228 ; CHECK-LABEL: @test_gep_inbounds_of_gep(
1229 ; CHECK-NEXT: [[PTR2:%.*]] = getelementptr i32, i32* [[BASE:%.*]], i64 8
1230 ; CHECK-NEXT: ret i32* [[PTR2]]
1232 %ptr1 = getelementptr i32, i32* %base, i64 4
1233 %ptr2 = getelementptr inbounds i32, i32* %ptr1, i64 4
1237 %struct.f = type { i32 }
1239 @g0 = internal unnamed_addr constant %struct.f zeroinitializer, align 4
1240 @g1 = internal unnamed_addr constant %struct.f { i32 -1 }, align 4
1242 define i32* @PR45084(i1 %cond) {
1243 ; CHECK-LABEL: @PR45084(
1244 ; CHECK-NEXT: [[GEP:%.*]] = select i1 [[COND:%.*]], i32* getelementptr inbounds ([[STRUCT_F:%.*]], %struct.f* @g0, i64 0, i32 0), i32* getelementptr inbounds ([[STRUCT_F]], %struct.f* @g1, i64 0, i32 0), !prof [[PROF0:![0-9]+]]
1245 ; CHECK-NEXT: ret i32* [[GEP]]
1247 %sel = select i1 %cond, %struct.f* @g0, %struct.f* @g1, !prof !0
1248 %gep = getelementptr inbounds %struct.f, %struct.f* %sel, i64 0, i32 0
1252 define i32* @PR45084_extra_use(i1 %cond, %struct.f** %p) {
1253 ; CHECK-LABEL: @PR45084_extra_use(
1254 ; CHECK-NEXT: [[SEL:%.*]] = select i1 [[COND:%.*]], %struct.f* @g0, %struct.f* @g1
1255 ; CHECK-NEXT: store %struct.f* [[SEL]], %struct.f** [[P:%.*]], align 8
1256 ; CHECK-NEXT: [[GEP:%.*]] = select i1 [[COND]], i32* getelementptr inbounds ([[STRUCT_F:%.*]], %struct.f* @g0, i64 0, i32 0), i32* getelementptr inbounds ([[STRUCT_F]], %struct.f* @g1, i64 0, i32 0)
1257 ; CHECK-NEXT: ret i32* [[GEP]]
1259 %sel = select i1 %cond, %struct.f* @g0, %struct.f* @g1
1260 store %struct.f* %sel, %struct.f** %p
1261 %gep = getelementptr %struct.f, %struct.f* %sel, i64 0, i32 0
1265 define i8* @gep_null_inbounds(i64 %idx) {
1266 ; CHECK-LABEL: @gep_null_inbounds(
1267 ; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds i8, i8* null, i64 [[IDX:%.*]]
1268 ; CHECK-NEXT: ret i8* [[GEP]]
1270 %gep = getelementptr inbounds i8, i8* null, i64 %idx
1274 define i8* @gep_null_not_inbounds(i64 %idx) {
1275 ; CHECK-LABEL: @gep_null_not_inbounds(
1276 ; CHECK-NEXT: [[GEP:%.*]] = getelementptr i8, i8* null, i64 [[IDX:%.*]]
1277 ; CHECK-NEXT: ret i8* [[GEP]]
1279 %gep = getelementptr i8, i8* null, i64 %idx
1283 define i8* @gep_null_defined(i64 %idx) null_pointer_is_valid {
1284 ; CHECK-LABEL: @gep_null_defined(
1285 ; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds i8, i8* null, i64 [[IDX:%.*]]
1286 ; CHECK-NEXT: ret i8* [[GEP]]
1288 %gep = getelementptr inbounds i8, i8* null, i64 %idx
1292 define i8* @gep_null_inbounds_different_type(i64 %idx1, i64 %idx2) {
1293 ; CHECK-LABEL: @gep_null_inbounds_different_type(
1294 ; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds [0 x i8], [0 x i8]* null, i64 0, i64 [[IDX2:%.*]]
1295 ; CHECK-NEXT: ret i8* [[GEP]]
1297 %gep = getelementptr inbounds [0 x i8], [0 x i8]* null, i64 %idx1, i64 %idx2
1301 define i8* @D98588(i8* %c1, i64 %offset) {
1302 ; CHECK-LABEL: @D98588(
1303 ; CHECK-NEXT: [[C2:%.*]] = bitcast i8* [[C1:%.*]] to i64*
1304 ; CHECK-NEXT: [[C2_NEXT:%.*]] = getelementptr inbounds i64, i64* [[C2]], i64 [[OFFSET:%.*]]
1305 ; CHECK-NEXT: [[GEP:%.*]] = bitcast i64* [[C2_NEXT]] to i8*
1306 ; CHECK-NEXT: ret i8* [[GEP]]
1308 %c2 = bitcast i8* %c1 to i64*
1309 %c2_next = getelementptr inbounds i64, i64* %c2, i64 %offset
1310 %ptrtoint1 = ptrtoint i8* %c1 to i64
1311 %ptrtoint2 = ptrtoint i64* %c2_next to i64
1312 %sub = sub i64 %ptrtoint2, %ptrtoint1 ; C2 - C1
1313 %gep = getelementptr inbounds i8, i8* %c1, i64 %sub ; C1 + (C2 - C1)
1317 declare noalias i8* @malloc(i64) nounwind
1319 define i32 @test_gep_bitcast_malloc(%struct.A* %a) {
1320 ; CHECK-LABEL: @test_gep_bitcast_malloc(
1321 ; CHECK-NEXT: entry:
1322 ; CHECK-NEXT: [[CALL:%.*]] = call noalias dereferenceable_or_null(16) i8* @malloc(i64 16)
1323 ; CHECK-NEXT: [[B:%.*]] = bitcast i8* [[CALL]] to %struct.A*
1324 ; CHECK-NEXT: [[G3:%.*]] = getelementptr [[STRUCT_A:%.*]], %struct.A* [[B]], i64 0, i32 2
1325 ; CHECK-NEXT: [[A_C:%.*]] = load i32, i32* [[G3]], align 4
1326 ; CHECK-NEXT: ret i32 [[A_C]]
1329 %call = call noalias i8* @malloc(i64 16) #2
1330 %B = bitcast i8* %call to %struct.A*
1331 %g3 = getelementptr %struct.A, %struct.A* %B, i32 0, i32 2
1332 %a_c = load i32, i32* %g3, align 4
1336 !0 = !{!"branch_weights", i32 2, i32 10}