llvm/test/Analysis/BasicAA/noalias-scope-decl.ll

; RUN: opt < %s -aa-pipeline=basic-aa -passes=aa-eval -print-all-alias-modref-info -disable-output 2>&1 | FileCheck %s
target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:32-f32:32:32-f64:32:32-v64:32:64-v128:32:128-a0:0:32-n32"

declare void @llvm.memcpy.p0.p0.i64(ptr nocapture, ptr nocapture, i64, i1) #0
declare void @llvm.experimental.noalias.scope.decl(metadata)

define void @test1(ptr %P, ptr %Q) nounwind ssp {
  load i8, ptr %P
  load i8, ptr %Q
  tail call void @llvm.experimental.noalias.scope.decl(metadata !0)
  tail call void @llvm.memcpy.p0.p0.i64(ptr %P, ptr %Q, i64 12, i1 false)
  ret void

; CHECK-LABEL: Function: test1:

; CHECK: MayAlias:	i8* %P, i8* %Q
; CHECK: NoModRef:  Ptr: i8* %P	<->  tail call void @llvm.experimental.noalias.scope.decl(metadata ![[SCOPE:[0-9]+]])
; CHECK: NoModRef:  Ptr: i8* %Q	<->  tail call void @llvm.experimental.noalias.scope.decl(metadata ![[SCOPE]])
; CHECK: Both ModRef:  Ptr: i8* %P	<->  tail call void @llvm.memcpy.p0.p0.i64(ptr %P, ptr %Q, i64 12, i1 false)
; CHECK: Both ModRef:  Ptr: i8* %Q	<->  tail call void @llvm.memcpy.p0.p0.i64(ptr %P, ptr %Q, i64 12, i1 false)
; CHECK: NoModRef:   tail call void @llvm.experimental.noalias.scope.decl(metadata ![[SCOPE]]) <->   tail call void @llvm.memcpy.p0.p0.i64(ptr %P, ptr %Q, i64 12, i1 false)
; CHECK: NoModRef:   tail call void @llvm.memcpy.p0.p0.i64(ptr %P, ptr %Q, i64 12, i1 false) <->   tail call void @llvm.experimental.noalias.scope.decl(metadata ![[SCOPE]])
}


attributes #0 = { nounwind }

!0 = !{ !1 }
!1 = distinct !{ !1, !2, !"test1: var" }
!2 = distinct !{!2, i1 false, !"test1"}