xref: /llvm-project/llvm/test/Transforms/Util/combine-alias-scope-metadata.ll (revision 211cf8a384ebb29787367c8fd5858e2a5ed3c10f) 
1; RUN: opt < %s -S -passes=memcpyopt | FileCheck %s
2target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
3
4define void @test(ptr noalias dereferenceable(1) %in, ptr noalias dereferenceable(1) %out) {
5  %tmp = alloca i8
6  %tmp2 = alloca i8
7; CHECK: call void @llvm.memcpy.p0.p0.i64(ptr align 8 %out, ptr align 8 %in, i64 1, i1 false)
8  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %tmp, ptr align 8 %in, i64 1, i1 false), !alias.scope !4
9  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %tmp2, ptr align 8 %tmp, i64 1, i1 false), !alias.scope !5
10
11  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %out, ptr align 8 %tmp2, i64 1, i1 false), !noalias !6
12
13  ret void
14}
15
16declare void @llvm.memcpy.p0.p0.i64(ptr, ptr, i64, i1)
17
18!0 = !{!0}
19!1 = distinct !{!1, !0, !"in"}
20!2 = distinct !{!2, !0, !"tmp"}
21!3 = distinct !{!3, !0, !"tmp2"}
22!4 = distinct !{!1, !2}
23!5 = distinct !{!2, !3}
24!6 = distinct !{!1, !2}
25