[llvm] r189300 - Add a testcase to ensure that the pubnames section uses an offset

[David Blaikie]

On Mon, Aug 26, 2013 at 5:36 PM, Eric Christopher <echristo at gmail.com> wrote:
> Author: echristo
> Date: Mon Aug 26 19:36:19 2013
> New Revision: 189300
>
> URL: http://llvm.org/viewvc/llvm-project?rev=189300&view=rev
> Log:
> Add a testcase to ensure that the pubnames section uses an offset
> off of the debug_info section even when split dwarf is enabled.
>
> Added:
>     llvm/trunk/test/DebugInfo/X86/dwarf-pubnames-split.ll
>
> Added: llvm/trunk/test/DebugInfo/X86/dwarf-pubnames-split.ll
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/X86/dwarf-pubnames-split.ll?rev=189300&view=auto
> ==============================================================================
> --- llvm/trunk/test/DebugInfo/X86/dwarf-pubnames-split.ll (added)
> +++ llvm/trunk/test/DebugInfo/X86/dwarf-pubnames-split.ll Mon Aug 26 19:36:19 2013
> @@ -0,0 +1,32 @@
> +; RUN: llc -mtriple=x86_64-pc-linux-gnu -split-dwarf=Enable %s -o - | FileCheck %s
> +
> +; Check that we get a symbol off of the debug_info section when using split dwarf and pubnames.

I assume the source this was generated from was just a trivial:

int main() {
}

?

> +
> +; CHECK: .Lpubtypes_begin0:
> +; CHECK-NEXT: .short    2                       # DWARF Version
> +; CHECK-NEXT: .long     .L.debug_info_begin0    # Offset of Compilation Unit Info
> +
> +; Function Attrs: nounwind uwtable
> +define i32 @main() #0 {
> +entry:
> +  %retval = alloca i32, align 4
> +  store i32 0, i32* %retval
> +  ret i32 0, !dbg !10
> +}
> +
> +attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
> +
> +!llvm.dbg.cu = !{!0}
> +!llvm.module.flags = !{!9}
> +
> +!0 = metadata !{i32 786449, metadata !1, i32 12, metadata !"clang version 3.4 (trunk 189287) (llvm/trunk 189296)", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [/usr/local/google/home/echristo/tmp/foo.c] [DW_LANG_C99]
> +!1 = metadata !{metadata !"foo.c", metadata !"/usr/local/google/home/echristo/tmp"}
> +!2 = metadata !{i32 0}
> +!3 = metadata !{metadata !4}
> +!4 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"main", metadata !"main", metadata !"", i32 1, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, i32 ()* @main, null, null, metadata !2, i32 1} ; [ DW_TAG_subprogram ] [line 1] [def] [main]
> +!5 = metadata !{i32 786473, metadata !1}          ; [ DW_TAG_file_type ] [/usr/local/google/home/echristo/tmp/foo.c]
> +!6 = metadata !{i32 786453, i32 0, i32 0, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !7, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
> +!7 = metadata !{metadata !8}
> +!8 = metadata !{i32 786468, null, null, metadata !"int", i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
> +!9 = metadata !{i32 2, metadata !"Dwarf Version", i32 3}
> +!10 = metadata !{i32 2, i32 0, metadata !4, null}
>
>
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