1*9880d681SAndroid Build Coastguard Worker; RUN: opt < %s -basicaa -aa-eval -print-all-alias-modref-info 2>&1 | FileCheck %s 2*9880d681SAndroid Build Coastguard Worker; PR4267 3*9880d681SAndroid Build Coastguard Worker 4*9880d681SAndroid Build Coastguard Workertarget datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 5*9880d681SAndroid Build Coastguard Worker 6*9880d681SAndroid Build Coastguard Worker; CHECK: PartialAlias: double* %p.0.i.0, double* %p3 7*9880d681SAndroid Build Coastguard Worker 8*9880d681SAndroid Build Coastguard Worker; %p3 is equal to %p.0.i.0 on the second iteration of the loop, 9*9880d681SAndroid Build Coastguard Worker; so MayAlias is needed. In practice, basicaa returns PartialAlias 10*9880d681SAndroid Build Coastguard Worker; for GEPs to ignore TBAA. 11*9880d681SAndroid Build Coastguard Worker 12*9880d681SAndroid Build Coastguard Workerdefine void @foo([3 x [3 x double]]* noalias %p) { 13*9880d681SAndroid Build Coastguard Workerentry: 14*9880d681SAndroid Build Coastguard Worker %p3 = getelementptr [3 x [3 x double]], [3 x [3 x double]]* %p, i64 0, i64 0, i64 3 15*9880d681SAndroid Build Coastguard Worker br label %loop 16*9880d681SAndroid Build Coastguard Worker 17*9880d681SAndroid Build Coastguard Workerloop: 18*9880d681SAndroid Build Coastguard Worker %i = phi i64 [ 0, %entry ], [ %i.next, %loop ] 19*9880d681SAndroid Build Coastguard Worker 20*9880d681SAndroid Build Coastguard Worker %p.0.i.0 = getelementptr [3 x [3 x double]], [3 x [3 x double]]* %p, i64 0, i64 %i, i64 0 21*9880d681SAndroid Build Coastguard Worker 22*9880d681SAndroid Build Coastguard Worker store volatile double 0.0, double* %p3 23*9880d681SAndroid Build Coastguard Worker store volatile double 0.1, double* %p.0.i.0 24*9880d681SAndroid Build Coastguard Worker 25*9880d681SAndroid Build Coastguard Worker %i.next = add i64 %i, 1 26*9880d681SAndroid Build Coastguard Worker %cmp = icmp slt i64 %i.next, 3 27*9880d681SAndroid Build Coastguard Worker br i1 %cmp, label %loop, label %exit 28*9880d681SAndroid Build Coastguard Worker 29*9880d681SAndroid Build Coastguard Workerexit: 30*9880d681SAndroid Build Coastguard Worker ret void 31*9880d681SAndroid Build Coastguard Worker} 32