1 target datalayout = 2 "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-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" 3 4 ; RUN: opt < %s -basicaa -aa-eval -print-all-alias-modref-info -disable-output 2>&1 | FileCheck %s 5 6 ; ptr_phi and ptr2_phi do not alias. 7 ; CHECK: NoAlias: i32* %ptr2_phi, i32* %ptr_phi 8 9 define i32 @test_noalias(i32* %ptr2, i32 %count, i32* %coeff) { 10 entry: 11 %ptr = getelementptr inbounds i32* %ptr2, i64 1 12 br label %while.body 13 14 while.body: 15 %num = phi i32 [ %count, %entry ], [ %dec, %while.body ] 16 %ptr_phi = phi i32* [ %ptr, %entry ], [ %ptr_inc, %while.body ] 17 %ptr2_phi = phi i32* [ %ptr2, %entry ], [ %ptr2_inc, %while.body ] 18 %result.09 = phi i32 [ 0 , %entry ], [ %add, %while.body ] 19 %dec = add nsw i32 %num, -1 20 %0 = load i32* %ptr_phi, align 4 21 store i32 %0, i32* %ptr2_phi, align 4 22 %1 = load i32* %coeff, align 4 23 %2 = load i32* %ptr_phi, align 4 24 %mul = mul nsw i32 %1, %2 25 %add = add nsw i32 %mul, %result.09 26 %tobool = icmp eq i32 %dec, 0 27 %ptr_inc = getelementptr inbounds i32* %ptr_phi, i64 1 28 %ptr2_inc = getelementptr inbounds i32* %ptr2_phi, i64 1 29 br i1 %tobool, label %the_exit, label %while.body 30 31 the_exit: 32 ret i32 %add 33 } 34
