[llvm] r202201 - DwarfDebug: Avoid emitting an empty debug_aranges section when aranges are disabled

[Eric Christopher]

Oops. Thanks.

-eric

On Tue, Feb 25, 2014 at 2:46 PM, David Blaikie <dblaikie at gmail.com> wrote:
> Author: dblaikie
> Date: Tue Feb 25 16:46:44 2014
> New Revision: 202201
>
> URL: http://llvm.org/viewvc/llvm-project?rev=202201&view=rev
> Log:
> DwarfDebug: Avoid emitting an empty debug_aranges section when aranges are disabled
>
> Modified:
>     llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
>     llvm/trunk/test/DebugInfo/X86/fission-cu.ll
>
> Modified: llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp?rev=202201&r1=202200&r2=202201&view=diff
> ==============================================================================
> --- llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp (original)
> +++ llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp Tue Feb 25 16:46:44 2014
> @@ -1941,7 +1941,8 @@ void DwarfDebug::emitSectionLabels() {
>    if (useSplitDwarf())
>      DwarfAbbrevDWOSectionSym = emitSectionSym(
>          Asm, TLOF.getDwarfAbbrevDWOSection(), "section_abbrev_dwo");
> -  emitSectionSym(Asm, TLOF.getDwarfARangesSection());
> +  if (GenerateARangeSection)
> +    emitSectionSym(Asm, TLOF.getDwarfARangesSection());
>
>    DwarfLineSectionSym =
>        emitSectionSym(Asm, TLOF.getDwarfLineSection(), "section_line");
>
> Modified: llvm/trunk/test/DebugInfo/X86/fission-cu.ll
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/X86/fission-cu.ll?rev=202201&r1=202200&r2=202201&view=diff
> ==============================================================================
> --- llvm/trunk/test/DebugInfo/X86/fission-cu.ll (original)
> +++ llvm/trunk/test/DebugInfo/X86/fission-cu.ll Tue Feb 25 16:46:44 2014
> @@ -1,6 +1,7 @@
>  ; RUN: llc -split-dwarf=Enable -generate-cu-hash -O0 %s -mtriple=x86_64-unknown-linux-gnu -filetype=obj -o %t
>  ; RUN: llvm-dwarfdump -debug-dump=all %t | FileCheck %s
>  ; RUN: llvm-readobj --relocations %t | FileCheck --check-prefix=OBJ %s
> +; RUN: llvm-objdump -h %t | FileCheck --check-prefix=HDR %s
>
>  @a = common global i32 0, align 4
>
> @@ -111,4 +112,6 @@
>  ; OBJ-NEXT: R_X86_64_32 .debug_str
>  ; OBJ-NEXT: }
>
> +; HDR-NOT: .debug_aranges
> +
>  !9 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
>
>
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