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. 4 5; RUN: opt < %s -basic-aa-separate-storage -S -passes=print-alias-sets 2>&1 | FileCheck %s 6 7declare void @llvm.assume(i1) 8 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)) 12define void @arg_arg(ptr %a1, ptr %a2) { 13entry: 14 call void @llvm.assume(i1 true) [ "separate_storage"(ptr %a1, ptr %a2) ] 15 %0 = load i8, ptr %a1 16 %1 = load i8, ptr %a2 17 ret void 18} 19 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)) 23define void @arg_inst(ptr %a1, ptr %a2) { 24entry: 25 %0 = getelementptr inbounds i8, ptr %a2, i64 20 26 call void @llvm.assume(i1 true) [ "separate_storage"(ptr %a1, ptr %0) ] 27 %1 = load i8, ptr %a1 28 %2 = load i8, ptr %0 29 ret void 30} 31 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)) 35define void @inst_inst(ptr %a1, ptr %a2) { 36entry: 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) ] 40 %2 = load i8, ptr %0 41 %3 = load i8, ptr %1 42 ret void 43} 44