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1; RUN: opt < %s -aa-pipeline=basic-aa -passes=aa-eval -print-all-alias-modref-info -disable-output 2>&1 | FileCheck %s2 3target 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"4 5; Check that geps with equal base offsets of noalias base pointers stay noalias.6define i32 @test(ptr %p, i16 %i) {7; CHECK-LABEL: Function: test:8 %pi.next = getelementptr i32, ptr %p, i32 19 %b = icmp eq i16 %i, 010 br i1 %b, label %bb1, label %bb211 12bb1:13 %f = getelementptr i32, ptr %p, i32 114 %g = getelementptr i32, ptr %pi.next, i32 115 br label %bb316bb2:17 %f2 = getelementptr i32, ptr %p, i32 118 %g2 = getelementptr i32, ptr %pi.next, i32 119 br label %bb320 21bb3:22 %ptr_phi = phi ptr [ %f, %bb1 ], [ %f2, %bb2 ]23 %ptr_phi2 = phi ptr [ %g, %bb1 ], [ %g2, %bb2 ]24; CHECK: NoAlias: i32* %f1, i32* %g125 %f1 = getelementptr i32, ptr %ptr_phi , i32 126 %g1 = getelementptr i32, ptr %ptr_phi2 , i32 127; This should also work if the access size is not the same.28; CHECK: NoAlias: i32* %f1, i16* %g129 load i32, ptr %f130 load i32, ptr %g131 load i16, ptr %g132 33ret i32 034}35 36; Check that geps with equal indices of noalias base pointers stay noalias.37define i32 @test2(ptr %p, i32 %i) {38; CHECK-LABEL: Function: test2:39 %pi.next = getelementptr [2 x i32], ptr %p, i32 140 %b = icmp eq i32 %i, 041 br i1 %b, label %bb1, label %bb242 43bb1:44 %f = getelementptr [2 x i32], ptr %p, i32 145 %g = getelementptr [2 x i32], ptr %pi.next, i32 146 br label %bb347bb2:48 %f2 = getelementptr [2 x i32], ptr %p, i32 149 %g2 = getelementptr [2 x i32], ptr %pi.next, i32 150 br label %bb351bb3:52 %ptr_phi = phi ptr [ %f, %bb1 ], [ %f2, %bb2 ]53 %ptr_phi2 = phi ptr [ %g, %bb1 ], [ %g2, %bb2 ]54; CHECK: NoAlias: i32* %f1, i32* %g155 %f1 = getelementptr [2 x i32], ptr %ptr_phi , i32 1, i32 %i56 %g1 = getelementptr [2 x i32], ptr %ptr_phi2 , i32 1, i32 %i57 load i32, ptr %f158 load i32, ptr %g159 60ret i32 061}62