1; RUN: opt < %s -aa-pipeline=basic-aa -passes=aa-eval -print-all-alias-modref-info 2>&1 | FileCheck %s 2 3target datalayout = "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" 4 5; BasicAA's guard against use-def cycles shouldn't prevent it from 6; analyzing use-def dags. 7 8; CHECK: MustAlias: i8* %base, i8* %phi 9; CHECK: MustAlias: i16* %base, i8* %base 10; CHECK: MustAlias: i16* %base, i8* %phi 11define i8 @foo(ptr %base, i1 %x, i1 %w) { 12entry: 13 load i8, ptr %base 14 br i1 %w, label %wa, label %wb 15wa: 16 load i8, ptr %base 17 br label %wc 18wb: 19 load i8, ptr %base 20 br label %wc 21wc: 22 %first = phi ptr [ %base, %wa ], [ %base, %wb ] 23 br i1 %x, label %xa, label %xb 24xa: 25 br label %xc 26xb: 27 br label %xc 28xc: 29 %phi = phi ptr [ %first, %xa ], [ %first, %xb ] 30 31 store i8 0, ptr %phi 32 33 store i16 -1, ptr %base 34 35 %loaded = load i8, ptr %phi 36 ret i8 %loaded 37} 38