1 ; This testcase consists of alias relations on 128-bit pointers that
2 ; should be completely resolvable by basicaa.
4 ; RUN: opt < %s -basicaa -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(%T addrspace(100)* %P) {
16 %A = getelementptr %T, %T addrspace(100)* %P, i64 0
17 %B = getelementptr %T, %T addrspace(100)* %P, i64 0, i32 0
18 %C = getelementptr %T, %T addrspace(100)* %P, i64 0, i32 1
19 %D = getelementptr %T, %T addrspace(100)* %P, i64 0, i32 1, i64 0
20 %E = getelementptr %T, %T addrspace(100)* %P, i64 0, i32 1, i64 5
24 ; test1 checks that >64 bits of index can be considered.
25 ; If BasicAA is truncating the arithmetic, it will conclude
26 ; that %A and %B must alias when in fact they must not.
28 ; CHECK: Function: test1
29 ; CHECK-NOT: MustAlias:
33 define void @test1(double addrspace(100)* %P, i128 %i) {
34 ; 1180591620717411303424 is 2**70
35 ; 590295810358705651712 is 2**69
36 %i70 = add i128 %i, 1180591620717411303424
37 %i69 = add i128 %i, 590295810358705651712
38 %A = getelementptr double, double addrspace(100)* %P, i128 %i70
39 %B = getelementptr double, double addrspace(100)* %P, i128 %i69
43 ; test2 checks that >64 bits of index can be considered
44 ; and computes the same address in two ways to ensure that
45 ; they are considered equivalent.
47 ; CHECK: Function: test2
51 define void @test2(double addrspace(100)* %P, i128 %i) {
52 ; 1180591620717411303424 is 2**70
53 ; 590295810358705651712 is 2**69
54 %i70 = add i128 %i, 1180591620717411303424
55 %i69 = add i128 %i, 590295810358705651712
56 %j70 = add i128 %i69, 590295810358705651712
57 %A = getelementptr double, double addrspace(100)* %P, i128 %i70
58 %C = getelementptr double, double addrspace(100)* %P, i128 %j70