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1; RUN: %llc_dwarf -O0 -filetype=obj < %s | llvm-dwarfdump - | FileCheck %s2 3; Just because there are no scopes/locations on any instructions in the4; function doesn't mean we can't describe the address range of the function.5; Check that we do that6 7; CHECK: DW_TAG_subprogram8; CHECK-NOT: TAG9; CHECK: DW_AT_low_pc10 11; Function Attrs: nounwind uwtable12define void @f() #0 !dbg !6 {13entry:14 ret void15}16 17!llvm.dbg.cu = !{!0}18!llvm.module.flags = !{!3, !4}19!llvm.ident = !{!5}20 21!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 4.0.0 (trunk 289692) (llvm/trunk 289697)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)22!1 = !DIFile(filename: "noscopes.c", directory: "/tmp/dbginfo")23!2 = !{}24!3 = !{i32 2, !"Dwarf Version", i32 4}25!4 = !{i32 2, !"Debug Info Version", i32 3}26!5 = !{!"clang version 4.0.0 (trunk 289692) (llvm/trunk 289697)"}27!6 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 1, type: !7, isLocal: false, isDefinition: true, scopeLine: 1, isOptimized: false, unit: !0, retainedNodes: !2)28!7 = !DISubroutineType(types: !8)29!8 = !{null}30!9 = !DILocation(line: 2, column: 1, scope: !6)31 32