| ; RUN: opt < %s -basicaa -aa-eval -print-all-alias-modref-info 2>&1 | FileCheck %s |
| ; PR4267 |
| |
| target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| |
| ; CHECK: MayAlias: double* %p.0.i.0, double* %p3 |
| |
| ; %p3 is equal to %p.0.i.0 on the second iteration of the loop, |
| ; so MayAlias is needed. In practice, basicaa returns PartialAlias |
| ; for GEPs to ignore TBAA. |
| |
| define void @foo([3 x [3 x double]]* noalias %p) { |
| entry: |
| %p3 = getelementptr [3 x [3 x double]], [3 x [3 x double]]* %p, i64 0, i64 0, i64 3 |
| br label %loop |
| |
| loop: |
| %i = phi i64 [ 0, %entry ], [ %i.next, %loop ] |
| |
| %p.0.i.0 = getelementptr [3 x [3 x double]], [3 x [3 x double]]* %p, i64 0, i64 %i, i64 0 |
| |
| store volatile double 0.0, double* %p3 |
| store volatile double 0.1, double* %p.0.i.0 |
| |
| %i.next = add i64 %i, 1 |
| %cmp = icmp slt i64 %i.next, 3 |
| br i1 %cmp, label %loop, label %exit |
| |
| exit: |
| ret void |
| } |
