1 ; RUN: opt < %s -aa-pipeline=basic-aa -passes=gvn,instcombine -S 2>&1 | FileCheck %s
3 target datalayout = "e-p:32:32:32-p1:16:16:16-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
5 ; Make sure that basicaa thinks R and r are must aliases.
6 define i32 @test1(ptr %P) {
8 %R = getelementptr {i32, i32}, ptr %P, i32 0, i32 1
11 %r = getelementptr {i32, i32}, ptr %P, i32 0, i32 1
16 ; CHECK-LABEL: @test1(
20 define i32 @test2(ptr %P) {
22 %R = getelementptr {i32, i32, i32}, ptr %P, i32 0, i32 1
25 %r = getelementptr {i32, i32, i32}, ptr %P, i32 0, i32 2
32 ; CHECK-LABEL: @test2(
37 ; This was a miscompilation.
38 define i32 @test3(ptr %P) {
40 %P2 = getelementptr {float, {i32, i32, i32}}, ptr %P, i32 0, i32 1
41 %R = getelementptr {i32, i32, i32}, ptr %P2, i32 0, i32 1
44 %r = getelementptr {i32, i32, i32}, ptr %P2, i32 0, i32 2
51 ; CHECK-LABEL: @test3(
56 ;; This is reduced from the SmallPtrSet constructor.
57 %SmallPtrSetImpl = type { ptr, i32, i32, i32, [1 x ptr] }
58 %SmallPtrSet64 = type { %SmallPtrSetImpl, [64 x ptr] }
60 define i32 @test4(ptr %P) {
62 %tmp2 = getelementptr inbounds %SmallPtrSet64, ptr %P, i64 0, i32 0, i32 1
63 store i32 64, ptr %tmp2, align 8
64 %tmp3 = getelementptr inbounds %SmallPtrSet64, ptr %P, i64 0, i32 0, i32 4, i64 64
65 store ptr null, ptr %tmp3, align 8
66 %tmp4 = load i32, ptr %tmp2, align 8
68 ; CHECK-LABEL: @test4(
73 define i32 @test5(ptr %p, i64 %i) {
74 %pi = getelementptr i32, ptr %p, i64 %i
75 %i.next = add i64 %i, 1
76 %pi.next = getelementptr i32, ptr %p, i64 %i.next
77 %x = load i32, ptr %pi
78 store i32 42, ptr %pi.next
79 %y = load i32, ptr %pi
82 ; CHECK-LABEL: @test5(
86 define i32 @test5_as1_smaller_size(ptr addrspace(1) %p, i8 %i) {
87 %pi = getelementptr i32, ptr addrspace(1) %p, i8 %i
88 %i.next = add i8 %i, 1
89 %pi.next = getelementptr i32, ptr addrspace(1) %p, i8 %i.next
90 %x = load i32, ptr addrspace(1) %pi
91 store i32 42, ptr addrspace(1) %pi.next
92 %y = load i32, ptr addrspace(1) %pi
95 ; CHECK-LABEL: @test5_as1_smaller_size(
100 define i32 @test5_as1_same_size(ptr addrspace(1) %p, i16 %i) {
101 %pi = getelementptr i32, ptr addrspace(1) %p, i16 %i
102 %i.next = add i16 %i, 1
103 %pi.next = getelementptr i32, ptr addrspace(1) %p, i16 %i.next
104 %x = load i32, ptr addrspace(1) %pi
105 store i32 42, ptr addrspace(1) %pi.next
106 %y = load i32, ptr addrspace(1) %pi
109 ; CHECK-LABEL: @test5_as1_same_size(
114 define i32 @test6(ptr %p, i64 %i1) {
116 %pi = getelementptr i32, ptr %p, i64 %i
117 %i.next = or disjoint i64 %i, 1
118 %pi.next = getelementptr i32, ptr %p, i64 %i.next
119 %x = load i32, ptr %pi
120 store i32 42, ptr %pi.next
121 %y = load i32, ptr %pi
124 ; CHECK-LABEL: @test6(
128 ; P[i] != p[(i*4)|2048] with disjoint or
129 define i32 @test6_higheror(ptr %p, i64 %i1) {
130 %i = shl nuw nsw i64 %i1, 2
131 %pi = getelementptr i32, ptr %p, i64 %i
132 %i.next = or disjoint i64 %i, 2048
133 %pi.next = getelementptr i32, ptr %p, i64 %i.next
134 %x = load i32, ptr %pi
135 store i32 42, ptr %pi.next
136 %y = load i32, ptr %pi
139 ; CHECK-LABEL: @test6_higheror(
144 define i32 @test7(ptr %p, i64 %i) {
145 %pi = getelementptr i32, ptr %p, i64 1
146 %i.next = shl i64 %i, 2
147 %pi.next = getelementptr i32, ptr %p, i64 %i.next
148 %x = load i32, ptr %pi
149 store i32 42, ptr %pi.next
150 %y = load i32, ptr %pi
153 ; CHECK-LABEL: @test7(
157 ; P[zext(i)] != p[zext(i+1)]
159 define i32 @test8(ptr %p, i16 %i) {
160 %i1 = zext i16 %i to i32
161 %pi = getelementptr i32, ptr %p, i32 %i1
162 %i.next = add i16 %i, 1
163 %i.next2 = zext i16 %i.next to i32
164 %pi.next = getelementptr i32, ptr %p, i32 %i.next2
165 %x = load i32, ptr %pi
166 store i32 42, ptr %pi.next
167 %y = load i32, ptr %pi
170 ; CHECK-LABEL: @test8(
174 define i8 @test9(ptr %P, i32 %i, i32 %j) {
178 %P2 = getelementptr [4 x i8], ptr %P, i32 0, i32 %i3
183 %P4 = getelementptr [4 x i8], ptr %P, i32 0, i32 %j2
185 %x = load i8, ptr %P2
187 %y = load i8, ptr %P2
190 ; CHECK-LABEL: @test9(
194 define i8 @test10(ptr %P, i32 %i) {
198 %P2 = getelementptr [4 x i8], ptr %P, i32 0, i32 %i3
201 %P4 = getelementptr [4 x i8], ptr %P, i32 0, i32 %i2
203 %x = load i8, ptr %P2
205 %y = load i8, ptr %P2
208 ; CHECK-LABEL: @test10(
212 ; (This was a miscompilation.)
213 define float @test11(i32 %indvar, ptr %q) nounwind ssp {
214 %tmp = mul i32 %indvar, -1
215 %dec = add i32 %tmp, 3
216 %scevgep = getelementptr [4 x [2 x float]], ptr %q, i32 0, i32 %dec
217 %y29 = getelementptr inbounds [2 x float], ptr %q, i32 0, i32 1
218 store float 1.0, ptr %y29, align 4
219 store i64 0, ptr %scevgep, align 4
220 %tmp30 = load float, ptr %y29, align 4
222 ; CHECK-LABEL: @test11(
223 ; CHECK: ret float %tmp30
226 ; (This was a miscompilation.)
227 define i32 @test12(i32 %x, i32 %y, ptr %p) nounwind {
228 %b = getelementptr [13 x i8], ptr %p, i32 %x
229 %d = getelementptr [15 x i8], ptr %b, i32 %y, i32 8
232 %r = load i32, ptr %p
234 ; CHECK-LABEL: @test12(
238 @P = internal global i32 715827882, align 4
239 @Q = internal global i32 715827883, align 4
240 @.str = private unnamed_addr constant [7 x i8] c"%u %u\0A\00", align 1
242 ; Make sure we recognize that u[0] and u[Global + Cst] may alias
243 ; when the addition has wrapping semantic.
245 ; CHECK-LABEL: @test13(
246 ; Make sure the stores appear before the related loads.
247 ; CHECK: store i8 42,
248 ; CHECK: store i8 99,
249 ; Find the loads and make sure they are used in the arguments to the printf.
250 ; CHECK: [[T0:%[a-zA-Z0-9_]+]] = load i8, ptr %t, align 1
251 ; CHECK: [[T0ARG:%[a-zA-Z0-9_]+]] = zext i8 [[T0]] to i32
252 ; CHECK: [[U0:%[a-zA-Z0-9_]+]] = load i8, ptr %u, align 1
253 ; CHECK: [[U0ARG:%[a-zA-Z0-9_]+]] = zext i8 [[U0]] to i32
254 ; CHECK: call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 [[T0ARG]], i32 [[U0ARG]])
256 define void @test13() {
258 %t = alloca [3 x i8], align 1
259 %u = alloca [3 x i8], align 1
260 %tmp = load i32, ptr @P, align 4
261 %tmp1 = mul i32 %tmp, 3
262 %mul = add i32 %tmp1, -2147483646
263 %idxprom = zext i32 %mul to i64
264 %arrayidx = getelementptr inbounds [3 x i8], ptr %t, i64 0, i64 %idxprom
265 store i8 42, ptr %arrayidx, align 1
266 %tmp2 = load i32, ptr @Q, align 4
267 %tmp3 = mul i32 %tmp2, 3
268 %mul2 = add i32 %tmp3, 2147483647
269 %idxprom3 = zext i32 %mul2 to i64
270 %arrayidx4 = getelementptr inbounds [3 x i8], ptr %u, i64 0, i64 %idxprom3
271 store i8 99, ptr %arrayidx4, align 1
272 %tmp4 = load i8, ptr %t, align 1
273 %conv = zext i8 %tmp4 to i32
274 %tmp5 = load i8, ptr %u, align 1
275 %conv7 = zext i8 %tmp5 to i32
276 %call = call i32 (ptr, ...) @printf(ptr @.str, i32 %conv, i32 %conv7)
280 declare i32 @printf(ptr, ...)