31 lines · plain
1; RUN: opt < %s -aa-pipeline=basic-aa -passes=aa-eval -print-all-alias-modref-info -disable-output 2>&1 | FileCheck %s2target 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"3 4declare void @llvm.memcpy.p0.p0.i64(ptr nocapture, ptr nocapture, i64, i1) #05declare void @llvm.experimental.noalias.scope.decl(metadata)6 7define void @test1(ptr %P, ptr %Q) nounwind ssp {8 load i8, ptr %P9 load i8, ptr %Q10 tail call void @llvm.experimental.noalias.scope.decl(metadata !0)11 tail call void @llvm.memcpy.p0.p0.i64(ptr %P, ptr %Q, i64 12, i1 false)12 ret void13 14; CHECK-LABEL: Function: test1:15 16; CHECK: MayAlias: i8* %P, i8* %Q17; CHECK: NoModRef: Ptr: i8* %P <-> tail call void @llvm.experimental.noalias.scope.decl(metadata !0)18; CHECK: NoModRef: Ptr: i8* %Q <-> tail call void @llvm.experimental.noalias.scope.decl(metadata !0)19; CHECK: Both ModRef: Ptr: i8* %P <-> tail call void @llvm.memcpy.p0.p0.i64(ptr %P, ptr %Q, i64 12, i1 false)20; CHECK: Both ModRef: Ptr: i8* %Q <-> tail call void @llvm.memcpy.p0.p0.i64(ptr %P, ptr %Q, i64 12, i1 false)21; CHECK: NoModRef: 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)22; 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 !0)23}24 25 26attributes #0 = { nounwind }27 28!0 = !{ !1 }29!1 = distinct !{ !1, !2, !"test1: var" }30!2 = distinct !{ !2, !"test1" }31