1 ; RUN: opt < %s -basicaa -aa-eval -print-all-alias-modref-info -disable-output 2>&1 | FileCheck %s
3 target datalayout = "e-p:32:32:32-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 ; Check that geps with equal base offsets of noalias base pointers stay noalias.
6 define i32 @test(i32* %p, i16 %i) {
7 ; CHECK-LABEL: Function: test:
8 %pi = getelementptr i32, i32* %p, i32 0
9 %pi.next = getelementptr i32, i32* %p, i32 1
10 %b = icmp eq i16 %i, 0
11 br i1 %b, label %bb1, label %bb2
14 %f = getelementptr i32, i32* %pi, i32 1
15 %g = getelementptr i32, i32* %pi.next, i32 1
18 %f2 = getelementptr i32, i32* %pi, i32 1
19 %g2 = getelementptr i32, i32* %pi.next, i32 1
23 %ptr_phi = phi i32* [ %f, %bb1 ], [ %f2, %bb2 ]
24 %ptr_phi2 = phi i32* [ %g, %bb1 ], [ %g2, %bb2 ]
25 ; CHECK: NoAlias: i32* %f1, i32* %g1
26 %f1 = getelementptr i32, i32* %ptr_phi , i32 1
27 %g1 = getelementptr i32, i32* %ptr_phi2 , i32 1
32 ; Check that geps with equal indices of noalias base pointers stay noalias.
33 define i32 @test2([2 x i32]* %p, i32 %i) {
34 ; CHECK-LABEL: Function: test2:
35 %pi = getelementptr [2 x i32], [2 x i32]* %p, i32 0
36 %pi.next = getelementptr [2 x i32], [2 x i32]* %p, i32 1
37 %b = icmp eq i32 %i, 0
38 br i1 %b, label %bb1, label %bb2
41 %f = getelementptr [2 x i32], [2 x i32]* %pi, i32 1
42 %g = getelementptr [2 x i32], [2 x i32]* %pi.next, i32 1
45 %f2 = getelementptr [2 x i32], [2 x i32]* %pi, i32 1
46 %g2 = getelementptr [2 x i32], [2 x i32]* %pi.next, i32 1
49 %ptr_phi = phi [2 x i32]* [ %f, %bb1 ], [ %f2, %bb2 ]
50 %ptr_phi2 = phi [2 x i32]* [ %g, %bb1 ], [ %g2, %bb2 ]
51 ; CHECK: NoAlias: i32* %f1, i32* %g1
52 %f1 = getelementptr [2 x i32], [2 x i32]* %ptr_phi , i32 1, i32 %i
53 %g1 = getelementptr [2 x i32], [2 x i32]* %ptr_phi2 , i32 1, i32 %i