--- /dev/null
+; RUN: opt -aa-pipeline=basic-aa -passes=always-inline -enable-noalias-to-md-conversion -S < %s | FileCheck %s
+target 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-S128"
+target triple = "x86_64-unknown-linux-gnu"
+
+declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture readonly, i64, i1) #0
+declare void @hey() #0
+
+define void @hello(i8* noalias nocapture %a, i8* noalias nocapture readonly %c, i8* nocapture %b) #1 {
+entry:
+ %l = alloca i8, i32 512, align 1
+ call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 16 %a, i8* align 16 %b, i64 16, i1 0)
+ call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 16 %b, i8* align 16 %c, i64 16, i1 0)
+ call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 16 %a, i8* align 16 %c, i64 16, i1 0)
+ call void @hey()
+ call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 16 %l, i8* align 16 %c, i64 16, i1 0)
+ ret void
+}
+
+define void @foo(i8* nocapture %a, i8* nocapture readonly %c, i8* nocapture %b) #2 {
+entry:
+ tail call void @hello(i8* %a, i8* %c, i8* %b)
+ ret void
+}
+
+define void @hello_cs(i8* nocapture %a, i8* nocapture readonly %c, i8* nocapture %b) #1 {
+entry:
+ %l = alloca i8, i32 512, align 1
+ call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 16 %a, i8* align 16 %b, i64 16, i1 0)
+ call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 16 %b, i8* align 16 %c, i64 16, i1 0)
+ call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 16 %a, i8* align 16 %c, i64 16, i1 0)
+ call void @hey()
+ call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 16 %l, i8* align 16 %c, i64 16, i1 0)
+ ret void
+}
+
+define void @foo_cs(i8* nocapture %a, i8* nocapture readonly %c, i8* nocapture %b) #2 {
+entry:
+ tail call void @hello_cs(i8* noalias %a, i8* noalias %c, i8* %b)
+ ret void
+}
+
+; CHECK: define void @foo(i8* nocapture %a, i8* nocapture readonly %c, i8* nocapture %b)
+; CHECK: entry:
+; CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 16 %a, i8* align 16 %b, i64 16, i1 false) #3, !noalias !0
+; CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 16 %b, i8* align 16 %c, i64 16, i1 false) #3, !noalias !3
+; CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 16 %a, i8* align 16 %c, i64 16, i1 false) #3, !alias.scope !5
+; CHECK: call void @hey() #3, !noalias !5
+; CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 16 %{{.*}}, i8* align 16 %c, i64 16, i1 false) #3, !noalias !3
+; CHECK: ret void
+; CHECK: }
+
+; CHECK: define void @foo_cs(i8* nocapture %a, i8* nocapture readonly %c, i8* nocapture %b)
+; CHECK: entry:
+; CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 16 %a, i8* align 16 %b, i64 16, i1 false) #3, !noalias !6
+; CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 16 %b, i8* align 16 %c, i64 16, i1 false) #3, !noalias !9
+; CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 16 %a, i8* align 16 %c, i64 16, i1 false) #3, !alias.scope !11
+; CHECK: call void @hey() #3, !noalias !11
+; CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 16 %{{.*}}, i8* align 16 %c, i64 16, i1 false) #3, !noalias !9
+; CHECK: ret void
+; CHECK: }
+
+attributes #0 = { nounwind argmemonly willreturn }
+attributes #1 = { nounwind alwaysinline }
+attributes #2 = { nounwind uwtable }
+
+; CHECK: !0 = !{!1}
+; CHECK: !1 = distinct !{!1, !2, !"hello: %c"}
+; CHECK: !2 = distinct !{!2, !"hello"}
+; CHECK: !3 = !{!4}
+; CHECK: !4 = distinct !{!4, !2, !"hello: %a"}
+; CHECK: !5 = !{!4, !1}
+
+; CHECK: !6 = !{!7}
+; CHECK: !7 = distinct !{!7, !8, !"hello_cs: %c"}
+; CHECK: !8 = distinct !{!8, !"hello_cs"}
+; CHECK: !9 = !{!10}
+; CHECK: !10 = distinct !{!10, !8, !"hello_cs: %a"}
+; CHECK: !11 = !{!10, !7}
+