1 ; RUN: opt < %s -aa-pipeline=basic-aa -passes=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"
4 declare void @llvm.memcpy.p0.p0.i64(ptr nocapture, ptr nocapture, i64, i1) #0
5 declare void @llvm.assume(i1) #0
7 define void @test1(ptr %P, ptr %Q) nounwind ssp {
8 tail call void @llvm.assume(i1 true)
9 tail call void @llvm.memcpy.p0.p0.i64(ptr %P, ptr %Q, i64 12, i1 false)
14 ; CHECK-LABEL: Function: test1:
16 ; CHECK: MayAlias: i8* %P, i8* %Q
17 ; CHECK: NoModRef: Ptr: i8* %P <-> tail call void @llvm.assume(i1 true)
18 ; CHECK: NoModRef: Ptr: i8* %Q <-> tail call void @llvm.assume(i1 true)
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.assume(i1 true) <-> 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.assume(i1 true)
25 ; Same but with operand bundles
26 define void @test2(ptr %P, ptr %Q) nounwind ssp {
27 tail call void @llvm.assume(i1 true) [ "nonnull"(ptr %P) ]
28 tail call void @llvm.memcpy.p0.p0.i64(ptr %P, ptr %Q, i64 12, i1 false)
33 ; CHECK-LABEL: Function: test2:
35 ; CHECK: MayAlias: i8* %P, i8* %Q
36 ; CHECK: NoModRef: Ptr: i8* %P <-> tail call void @llvm.assume(i1 true) [ "nonnull"(ptr %P) ]
37 ; CHECK: NoModRef: Ptr: i8* %Q <-> tail call void @llvm.assume(i1 true) [ "nonnull"(ptr %P) ]
38 ; CHECK: Both ModRef: Ptr: i8* %P <-> tail call void @llvm.memcpy.p0.p0.i64(ptr %P, ptr %Q, i64 12, i1 false)
39 ; CHECK: Both ModRef: Ptr: i8* %Q <-> tail call void @llvm.memcpy.p0.p0.i64(ptr %P, ptr %Q, i64 12, i1 false)
40 ; CHECK: NoModRef: tail call void @llvm.assume(i1 true) [ "nonnull"(ptr %P) ] <-> tail call void @llvm.memcpy.p0.p0.i64(ptr %P, ptr %Q, i64 12, i1 false)
41 ; CHECK: NoModRef: tail call void @llvm.memcpy.p0.p0.i64(ptr %P, ptr %Q, i64 12, i1 false) <-> tail call void @llvm.assume(i1 true) [ "nonnull"(ptr %P) ]
44 attributes #0 = { nounwind }