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| author | David Blaikie <dblaikie@gmail.com> | 2019-11-12 14:15:37 -0800 |
|---|---|---|
| committer | David Blaikie <dblaikie@gmail.com> | 2019-11-15 18:51:13 -0800 |
| commit | 77cfcd75092b57693d40123a013e59295634a945 (patch) | |
| tree | 1199d6a4ddee2a0351d11eacd99f2ec373a8f156 /llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp | |
| parent | 97c742e6b74e731afdef74dd5f8366ce883e0520 (diff) | |
| download | bcm5719-llvm-77cfcd75092b57693d40123a013e59295634a945.tar.gz bcm5719-llvm-77cfcd75092b57693d40123a013e59295634a945.zip | |
DebugInfo: Use loclistx for DWARFv5 location lists to reduce the number of relocations
This only implements the non-dwo part, but loclistx is necessary to use
location lists in DWARFv5, so it's a precursor to that work - and
generally reduces relocations (only using one reloc, then
indexes/relative offsets for all location list references) in non-split
DWARF.
Diffstat (limited to 'llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp b/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp index a61c98ec1c1..9578e01abdd 100644 --- a/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp +++ b/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp @@ -1220,8 +1220,11 @@ void DwarfCompileUnit::addComplexAddress(const DbgVariable &DV, DIE &Die, /// Add a Dwarf loclistptr attribute data and value. void DwarfCompileUnit::addLocationList(DIE &Die, dwarf::Attribute Attribute, unsigned Index) { - dwarf::Form Form = DD->getDwarfVersion() >= 4 ? dwarf::DW_FORM_sec_offset - : dwarf::DW_FORM_data4; + dwarf::Form Form = dwarf::DW_FORM_data4; + if (DD->getDwarfVersion() == 4) + Form =dwarf::DW_FORM_sec_offset; + if (DD->getDwarfVersion() >= 5) + Form =dwarf::DW_FORM_loclistx; Die.addValue(DIEValueAllocator, Attribute, Form, DIELocList(Index)); } |
