1 ; We want BasicAA to make a reasonable conservative guess as to context for
2 ; separate storage hints. This lets alias analysis users (such as the alias set
3 ; tracker) who can't be context-sensitive still get the benefits of hints.
5 ; RUN: opt < %s -basic-aa-separate-storage -S -passes=print-alias-sets 2>&1 | FileCheck %s
7 declare void @llvm.assume(i1)
9 ; CHECK-LABEL: Alias sets for function 'arg_arg'
10 ; CHECK: AliasSet[{{.*}}, 1] must alias, Ref Memory locations: (ptr %a1, LocationSize::precise(1))
11 ; CHECK: AliasSet[{{.*}}, 1] must alias, Ref Memory locations: (ptr %a2, LocationSize::precise(1))
12 define void @arg_arg(ptr %a1, ptr %a2) {
14 call void @llvm.assume(i1 true) [ "separate_storage"(ptr %a1, ptr %a2) ]
20 ; CHECK-LABEL: Alias sets for function 'arg_inst'
21 ; CHECK: AliasSet[{{.*}}, 1] must alias, Ref Memory locations: (ptr %a1, LocationSize::precise(1))
22 ; CHECK: AliasSet[{{.*}}, 1] must alias, Ref Memory locations: (ptr %0, LocationSize::precise(1))
23 define void @arg_inst(ptr %a1, ptr %a2) {
25 %0 = getelementptr inbounds i8, ptr %a2, i64 20
26 call void @llvm.assume(i1 true) [ "separate_storage"(ptr %a1, ptr %0) ]
32 ; CHECK-LABEL: Alias sets for function 'inst_inst'
33 ; CHECK: AliasSet[{{.*}}, 1] must alias, Ref Memory locations: (ptr %0, LocationSize::precise(1))
34 ; CHECK: AliasSet[{{.*}}, 1] must alias, Ref Memory locations: (ptr %1, LocationSize::precise(1))
35 define void @inst_inst(ptr %a1, ptr %a2) {
37 %0 = getelementptr inbounds i8, ptr %a1, i64 20
38 %1 = getelementptr inbounds i8, ptr %a2, i64 20
39 call void @llvm.assume(i1 true) [ "separate_storage"(ptr %0, ptr %1) ]