| Stephen Hines | 37ed9c1 | 2014-12-01 14:51:49 -0800 | [diff] [blame^] | 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 } |