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1; We want BasicAA to make a reasonable conservative guess as to context for2; separate storage hints. This lets alias analysis users (such as the alias set3; 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 %s6 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 %a116 %1 = load i8, ptr %a217 ret void18}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 2026 call void @llvm.assume(i1 true) [ "separate_storage"(ptr %a1, ptr %0) ]27 %1 = load i8, ptr %a128 %2 = load i8, ptr %029 ret void30}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 2038 %1 = getelementptr inbounds i8, ptr %a2, i64 2039 call void @llvm.assume(i1 true) [ "separate_storage"(ptr %0, ptr %1) ]40 %2 = load i8, ptr %041 %3 = load i8, ptr %142 ret void43}44