1 ; This testcase consists of alias relations on 128-bit pointers that
2 ; should be completely resolvable by basicaa.
4 ; RUN: opt < %s -aa-pipeline=basic-aa -passes=aa-eval -print-no-aliases -print-may-aliases -print-must-aliases -disable-output 2>&1 | FileCheck %s
6 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-i128:128:128-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128-p100:128:64:64-p101:128:64:64"
9 ; test0 is similar to SimpleCases.ll
11 %T = type { i32, [10 x i8] }
13 ; CHECK: Function: test0
14 ; CHECK-NOT: MayAlias:
15 define void @test0(ptr addrspace(100) %P) {
16 %C = getelementptr %T, ptr addrspace(100) %P, i64 0, i32 1
17 %D = getelementptr %T, ptr addrspace(100) %P, i64 0, i32 1, i64 0
18 %E = getelementptr %T, ptr addrspace(100) %P, i64 0, i32 1, i64 5
19 load %T, ptr addrspace(100) %P
20 load i32, ptr addrspace(100) %P
21 load [10 x i8], ptr addrspace(100) %C
22 load i8, ptr addrspace(100) %D
23 load i8, ptr addrspace(100) %E
27 ; test1 checks that >64 bits of index can be considered.
28 ; If BasicAA is truncating the arithmetic, it will conclude
29 ; that %A and %B must alias when in fact they must not.
31 ; CHECK: Function: test1
32 ; CHECK-NOT: MustAlias:
36 define void @test1(ptr addrspace(100) %P, i128 %i) {
37 ; 1180591620717411303424 is 2**70
38 ; 590295810358705651712 is 2**69
39 %i70 = add i128 %i, 1180591620717411303424
40 %i69 = add i128 %i, 590295810358705651712
41 %A = getelementptr double, ptr addrspace(100) %P, i128 %i70
42 %B = getelementptr double, ptr addrspace(100) %P, i128 %i69
43 load double, ptr addrspace(100) %A
44 load double, ptr addrspace(100) %B
48 ; test2 checks that >64 bits of index can be considered
49 ; and computes the same address in two ways to ensure that
50 ; they are considered equivalent.
52 ; CHECK: Function: test2
56 define void @test2(ptr addrspace(100) %P, i128 %i) {
57 ; 1180591620717411303424 is 2**70
58 ; 590295810358705651712 is 2**69
59 %i70 = add i128 %i, 1180591620717411303424
60 %i69 = add i128 %i, 590295810358705651712
61 %j70 = add i128 %i69, 590295810358705651712
62 %A = getelementptr double, ptr addrspace(100) %P, i128 %i70
63 %C = getelementptr double, ptr addrspace(100) %P, i128 %j70
64 load double, ptr addrspace(100) %A
65 load double, ptr addrspace(100) %C