1 ; RUN: opt < %s -basicaa -aa-eval -print-all-alias-modref-info -disable-output 2>&1 | FileCheck %s 2 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" 3 4 declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i32, i1) #0 5 declare void @llvm.assume(i1) #0 6 7 define void @test1(i8* %P, i8* %Q) nounwind ssp { 8 tail call void @llvm.assume(i1 true) 9 tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i32 1, i1 false) 10 ret void 11 12 ; CHECK-LABEL: Function: test1: 13 14 ; CHECK: MayAlias: i8* %P, i8* %Q 15 ; CHECK: NoModRef: Ptr: i8* %P <-> tail call void @llvm.assume(i1 true) 16 ; CHECK: NoModRef: Ptr: i8* %Q <-> tail call void @llvm.assume(i1 true) 17 ; CHECK: Both ModRef: Ptr: i8* %P <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i32 1, i1 false) 18 ; CHECK: Both ModRef: Ptr: i8* %Q <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i32 1, i1 false) 19 ; CHECK: NoModRef: tail call void @llvm.assume(i1 true) <-> tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i32 1, i1 false) 20 ; CHECK: NoModRef: tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %P, i8* %Q, i64 12, i32 1, i1 false) <-> tail call void @llvm.assume(i1 true) 21 } 22 23 attributes #0 = { nounwind } 24
