1
2; RUN: llc < %s -filetype=obj -mtriple=x86_64-apple-darwin | llvm-dwarfdump -v - | FileCheck %s
3
4; Test that a nodebug function (a function not appearing in the debug info IR
5; metadata subprogram list) with DebugLocs on its IR doesn't cause crashes/does
6; the right thing.
7
8; Build with clang from the following:
9; extern int i;
10; inline __attribute__((always_inline)) void f1() {
11;   i = 3;
12; }
13;
14; __attribute__((nodebug)) void f2() {
15;   f1();
16; }
17
18; Check that there's no DW_TAG_subprogram, not even for the 'f2' function.
19; CHECK: .debug_info contents:
20; CHECK: DW_TAG_compile_unit
21; CHECK-NOT: DW_TAG_subprogram
22
23; Expect no line table entry since there are no functions and file references in this compile unit
24; CHECK: .debug_line contents:
25; CHECK: Line table prologue:
26; CHECK: total_length: 0x0000001a
27; CHECK-NOT: file_names[
28
29@i = external global i32
30
31; Function Attrs: uwtable
32define void @_Z2f2v() #0 {
33entry:
34  store i32 3, i32* @i, align 4, !dbg !11
35  ret void
36}
37
38attributes #0 = { uwtable "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
39
40!llvm.dbg.cu = !{!0}
41!llvm.module.flags = !{!8, !9}
42!llvm.ident = !{!10}
43
44!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !12, globals: !2, imports: !2)
45!1 = !DIFile(filename: "nodebug.cpp", directory: "/tmp/dbginfo")
46!2 = !{}
47!4 = distinct !DISubprogram(name: "f1", linkageName: "_Z2f1v", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 2, file: !1, scope: !5, type: !6, retainedNodes: !2)
48!5 = !DIFile(filename: "nodebug.cpp", directory: "/tmp/dbginfo")
49!6 = !DISubroutineType(types: !7)
50!7 = !{null}
51!8 = !{i32 2, !"Dwarf Version", i32 4}
52!9 = !{i32 2, !"Debug Info Version", i32 3}
53!10 = !{!"clang version 3.5.0 "}
54!11 = !DILocation(line: 3, scope: !4)
55!12 = !{!13}
56!13 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
57