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Differential D157908

[BOLT][DWARF] Fix location list order
ClosedPublic

Authored by ayermolo on Aug 14 2023, 11:40 AM.

Details

Reviewers
rafauler
Amir
maksfb
jdoerfert
Commits
rGbce5743e2190: [BOLT][DWARF] Fix location list order
Summary

This bug crept in when CU partitioning was introduced. It manifests itself when
there are CUs that use location lists that come before CUs that are part of
thin-lto. BOLT processes CUs with cross CU references first (these are produced
by thin-lto). When we wrote out all the location lists we did it in original
order. Since DWARF4 uses offsets directly in to .debug_loc those offsets in DIEs
became wrong.

Diff Detail

Event Timeline

ayermolo created this revision.Aug 14 2023, 11:40 AM
Herald added a reviewer: rafauler. · View Herald TranscriptAug 14 2023, 11:40 AM
Herald added a reviewer: Amir. · View Herald Transcript
Herald added a reviewer: maksfb. · View Herald Transcript
Herald added a project: Restricted Project. · View Herald Transcript
Herald added subscribers: treapster, hoy, modimo, wenlei. · View Herald Transcript
ayermolo requested review of this revision.Aug 14 2023, 11:40 AM
Herald added a reviewer: jdoerfert. · View Herald TranscriptAug 14 2023, 11:40 AM
Herald added a project: Restricted Project. · View Herald Transcript
Herald added subscribers: llvm-commits, jplehr, yota9, sstefan1. · View Herald Transcript
ayermolo updated this revision to Diff 550042.Aug 14 2023, 11:42 AM

fixed nit

Harbormaster completed remote builds in B252440: Diff 550042.Aug 14 2023, 1:18 PM
ayermolo edited the summary of this revision. (Show Details)Aug 14 2023, 3:37 PM
Amir accepted this revision.Aug 14 2023, 4:06 PM
This revision is now accepted and ready to land.Aug 14 2023, 4:06 PM
ayermolo updated this revision to Diff 550128.Aug 14 2023, 4:32 PM

cleaned up dwarf5-loclist.s

Harbormaster completed remote builds in B252488: Diff 550128.Aug 14 2023, 5:20 PM
Closed by commit rGbce5743e2190: [BOLT][DWARF] Fix location list order (authored by ayermolo). · Explain WhyAug 14 2023, 5:27 PM
This revision was automatically updated to reflect the committed changes.
ayermolo added a commit: rGbce5743e2190: [BOLT][DWARF] Fix location list order.

Revision Contents

Diff 550040

bolt/lib/Rewrite/DWARFRewriter.cpp

Show First 20 Lines • Show All 536 Lines • ▼ Show 20 Lines if (BC.isDWARF5Used()) {
AddrWriter = std::make_unique<DebugAddrWriter>(&BC); AddrWriter = std::make_unique<DebugAddrWriter>(&BC);
} }
if (BC.isDWARFLegacyUsed()) if (BC.isDWARFLegacyUsed())
LegacyRangesSectionWriter = std::make_unique<DebugRangesSectionWriter>(); LegacyRangesSectionWriter = std::make_unique<DebugRangesSectionWriter>();
DebugLoclistWriter::setAddressWriter(AddrWriter.get()); DebugLoclistWriter::setAddressWriter(AddrWriter.get());
size_t CUIndex = 0; uint32_t CUIndex = 0;
for (std::unique_ptr<DWARFUnit> &CU : BC.DwCtx->compile_units()) { std::mutex AccessMutex;
const uint16_t DwarfVersion = CU->getVersion(); // Needs to be invoked in the same order as CUs are processed.
auto createRangeLocList = [&](DWARFUnit &CU) -> DebugLocWriter * {
std::lock_guard<std::mutex> Lock(AccessMutex);
const uint16_t DwarfVersion = CU.getVersion();
if (DwarfVersion >= 5) { if (DwarfVersion >= 5) {
LocListWritersByCU[CUIndex] = LocListWritersByCU[CUIndex] =
std::make_unique<DebugLoclistWriter>(*CU.get(), DwarfVersion, false); std::make_unique<DebugLoclistWriter>(CU, DwarfVersion, false);
if (std::optional<uint64_t> DWOId = CU->getDWOId()) { if (std::optional<uint64_t> DWOId = CU.getDWOId()) {
assert(RangeListsWritersByCU.count(*DWOId) == 0 && assert(RangeListsWritersByCU.count(*DWOId) == 0 &&
"RangeLists writer for DWO unit already exists."); "RangeLists writer for DWO unit already exists.");
auto RangeListsSectionWriter = auto RangeListsSectionWriter =
std::make_unique<DebugRangeListsSectionWriter>(); std::make_unique<DebugRangeListsSectionWriter>();
RangeListsSectionWriter->initSection(*CU.get()); RangeListsSectionWriter->initSection(CU);
RangeListsWritersByCU[*DWOId] = std::move(RangeListsSectionWriter); RangeListsWritersByCU[*DWOId] = std::move(RangeListsSectionWriter);
} }
} else { } else {
LocListWritersByCU[CUIndex] = std::make_unique<DebugLocWriter>(); LocListWritersByCU[CUIndex] = std::make_unique<DebugLocWriter>();
} }
++CUIndex; return LocListWritersByCU[CUIndex++].get();
} };
// Unordered maps to handle name collision if output DWO directory is // Unordered maps to handle name collision if output DWO directory is
// specified. // specified.
std::unordered_map<std::string, uint32_t> NameToIndexMap; std::unordered_map<std::string, uint32_t> NameToIndexMap;
std::mutex AccessMutex;
auto updateDWONameCompDir = [&](DWARFUnit &Unit, DIEBuilder &DIEBldr, auto updateDWONameCompDir = [&](DWARFUnit &Unit, DIEBuilder &DIEBldr,
DIE &UnitDIE) -> std::string { DIE &UnitDIE) -> std::string {
DIEValue DWONameAttrInfo = UnitDIE.findAttribute(dwarf::DW_AT_dwo_name); DIEValue DWONameAttrInfo = UnitDIE.findAttribute(dwarf::DW_AT_dwo_name);
if (!DWONameAttrInfo) if (!DWONameAttrInfo)
DWONameAttrInfo = UnitDIE.findAttribute(dwarf::DW_AT_GNU_dwo_name); DWONameAttrInfo = UnitDIE.findAttribute(dwarf::DW_AT_GNU_dwo_name);
assert(DWONameAttrInfo && "DW_AT_dwo_name is not in Skeleton CU."); assert(DWONameAttrInfo && "DW_AT_dwo_name is not in Skeleton CU.");
std::string ObjectName; std::string ObjectName;
Show All 13 Lines if (!opts::DwarfOutputPath.empty()) {
opts::DwarfOutputPath.c_str()); opts::DwarfOutputPath.c_str());
} }
return ObjectName; return ObjectName;
}; };
DWPState State; DWPState State;
if (opts::WriteDWP) if (opts::WriteDWP)
initDWPState(State); initDWPState(State);
auto processUnitDIE = [&](size_t CUIndex, DWARFUnit *Unit, auto processUnitDIE = [&](DWARFUnit *Unit, DIEBuilder *DIEBlder) {
DIEBuilder *DIEBlder) {
// Check if the unit is a skeleton and we need special updates for it and // Check if the unit is a skeleton and we need special updates for it and
// its matching split/DWO CU. // its matching split/DWO CU.
std::optional<DWARFUnit *> SplitCU; std::optional<DWARFUnit *> SplitCU;
std::optional<uint64_t> RangesBase; std::optional<uint64_t> RangesBase;
std::optional<uint64_t> DWOId = Unit->getDWOId(); std::optional<uint64_t> DWOId = Unit->getDWOId();
StrOffstsWriter->initialize(Unit->getStringOffsetSection(), StrOffstsWriter->initialize(Unit->getStringOffsetSection(),
Unit->getStringOffsetsTableContribution()); Unit->getStringOffsetsTableContribution());
if (DWOId) if (DWOId)
SplitCU = BC.getDWOCU(*DWOId); SplitCU = BC.getDWOCU(*DWOId);
DebugLocWriter *DebugLocWriter = createRangeLocList(*Unit);
DebugLocWriter *DebugLocWriter = nullptr; ;
DebugRangesSectionWriter *RangesSectionWriter = DebugRangesSectionWriter *RangesSectionWriter =
Unit->getVersion() >= 5 ? RangeListsSectionWriter.get() Unit->getVersion() >= 5 ? RangeListsSectionWriter.get()
: LegacyRangesSectionWriter.get(); : LegacyRangesSectionWriter.get();
// Skipping CUs that failed to load. // Skipping CUs that failed to load.
if (SplitCU) { if (SplitCU) {
DIEBuilder DWODIEBuilder(&(*SplitCU)->getContext(), true); DIEBuilder DWODIEBuilder(&(*SplitCU)->getContext(), true);
DWODIEBuilder.buildBoth(); DWODIEBuilder.buildBoth();
std::string DWOName = updateDWONameCompDir( std::string DWOName = updateDWONameCompDir(
Show All 19 Lines if (SplitCU) {
*DWODIEBuilder.getUnitDIEbyUnit(**SplitCU)); *DWODIEBuilder.getUnitDIEbyUnit(**SplitCU));
if (Unit->getVersion() >= 5) if (Unit->getVersion() >= 5)
TempRangesSectionWriter->finalizeSection(); TempRangesSectionWriter->finalizeSection();
emitDWOBuilder(DWOName, DWODIEBuilder, *this, **SplitCU, *Unit, State, emitDWOBuilder(DWOName, DWODIEBuilder, *this, **SplitCU, *Unit, State,
DebugLocDWoWriter); DebugLocDWoWriter);
} }
{
std::lock_guard<std::mutex> Lock(AccessMutex);
auto LocListWriterIter = LocListWritersByCU.find(CUIndex);
if (LocListWriterIter != LocListWritersByCU.end())
DebugLocWriter = LocListWriterIter->second.get();
}
if (Unit->getVersion() >= 5) { if (Unit->getVersion() >= 5) {
RangesBase = RangesSectionWriter->getSectionOffset() + RangesBase = RangesSectionWriter->getSectionOffset() +
getDWARF5RngListLocListHeaderSize(); getDWARF5RngListLocListHeaderSize();
RangesSectionWriter->initSection(*Unit); RangesSectionWriter->initSection(*Unit);
StrOffstsWriter->finalizeSection(*Unit, *DIEBlder); StrOffstsWriter->finalizeSection(*Unit, *DIEBlder);
} }
updateUnitDebugInfo(*Unit, *DIEBlder, *DebugLocWriter, *RangesSectionWriter, updateUnitDebugInfo(*Unit, *DIEBlder, *DebugLocWriter, *RangesSectionWriter,
RangesBase); RangesBase);
DebugLocWriter->finalize(*DIEBlder, *DIEBlder->getUnitDIEbyUnit(*Unit)); DebugLocWriter->finalize(*DIEBlder, *DIEBlder->getUnitDIEbyUnit(*Unit));
if (Unit->getVersion() >= 5) if (Unit->getVersion() >= 5)
RangesSectionWriter->finalizeSection(); RangesSectionWriter->finalizeSection();
AddrWriter->update(*DIEBlder, *Unit); AddrWriter->update(*DIEBlder, *Unit);
}; };
CUIndex = 0;
DIEBuilder DIEBlder(BC.DwCtx.get()); DIEBuilder DIEBlder(BC.DwCtx.get());
DIEBlder.buildTypeUnits(); DIEBlder.buildTypeUnits();
SmallVector<char, 20> OutBuffer; SmallVector<char, 20> OutBuffer;
std::unique_ptr<raw_svector_ostream> ObjOS = std::unique_ptr<raw_svector_ostream> ObjOS =
std::make_unique<raw_svector_ostream>(OutBuffer); std::make_unique<raw_svector_ostream>(OutBuffer);
const object::ObjectFile *File = BC.DwCtx->getDWARFObj().getFile(); const object::ObjectFile *File = BC.DwCtx->getDWARFObj().getFile();
auto TheTriple = std::make_unique<Triple>(File->makeTriple()); auto TheTriple = std::make_unique<Triple>(File->makeTriple());
std::unique_ptr<DIEStreamer> Streamer = std::unique_ptr<DIEStreamer> Streamer =
createDIEStreamer(*TheTriple, *ObjOS, "TypeStreamer", DIEBlder, *this); createDIEStreamer(*TheTriple, *ObjOS, "TypeStreamer", DIEBlder, *this);
CUOffsetMap OffsetMap = finalizeTypeSections(DIEBlder, *Streamer); CUOffsetMap OffsetMap = finalizeTypeSections(DIEBlder, *Streamer);
const bool SingleThreadedMode = const bool SingleThreadedMode =
opts::NoThreads || opts::DeterministicDebugInfo; opts::NoThreads || opts::DeterministicDebugInfo;
if (!SingleThreadedMode) if (!SingleThreadedMode)
DIEBlder.buildCompileUnits(); DIEBlder.buildCompileUnits();
if (SingleThreadedMode) { if (SingleThreadedMode) {
CUPartitionVector PartVec = partitionCUs(*BC.DwCtx); CUPartitionVector PartVec = partitionCUs(*BC.DwCtx);
for (std::vector<DWARFUnit *> &Vec : PartVec) { for (std::vector<DWARFUnit *> &Vec : PartVec) {
DIEBlder.buildCompileUnits(Vec); DIEBlder.buildCompileUnits(Vec);
for (DWARFUnit *CU : DIEBlder.getProcessedCUs()) for (DWARFUnit *CU : DIEBlder.getProcessedCUs())
processUnitDIE(CUIndex++, CU, &DIEBlder); processUnitDIE(CU, &DIEBlder);
finalizeCompileUnits(DIEBlder, *Streamer, OffsetMap, finalizeCompileUnits(DIEBlder, *Streamer, OffsetMap,
DIEBlder.getProcessedCUs()); DIEBlder.getProcessedCUs());
} }
} else { } else {
// Update unit debug info in parallel // Update unit debug info in parallel
ThreadPool &ThreadPool = ParallelUtilities::getThreadPool(); ThreadPool &ThreadPool = ParallelUtilities::getThreadPool();
for (std::unique_ptr<DWARFUnit> &CU : BC.DwCtx->compile_units()) { for (std::unique_ptr<DWARFUnit> &CU : BC.DwCtx->compile_units())
ThreadPool.async(processUnitDIE, CUIndex, CU.get(), &DIEBlder); ThreadPool.async(processUnitDIE, CU.get(), &DIEBlder);
CUIndex++;
}
ThreadPool.wait(); ThreadPool.wait();
} }
if (opts::WriteDWP) if (opts::WriteDWP)
finalizeDWP(State); finalizeDWP(State);
finalizeDebugSections(DIEBlder, *Streamer, *ObjOS, OffsetMap); finalizeDebugSections(DIEBlder, *Streamer, *ObjOS, OffsetMap);
updateGdbIndexSection(OffsetMap, CUIndex); updateGdbIndexSection(OffsetMap, CUIndex);
▲ Show 20 Lines • Show All 1,501 Lines • Show Last 20 Lines

bolt/test/X86/Inputs/dwarf4-cross-cu-with-loclist.s

  • This file was added.
# clang++ main.cpp -O1 -g2 -gdwarf-4 -emit-llvm -c -o mainLL.o
# clang++ helper1.cpp -O1 -g2 -gdwarf-4 -emit-llvm -c -o helper1LL.o
# llvm-link mainLL.o helper1LL.o -S -o linked.ll
# clang++ -O1 linked.ll -g2 -gdwarf-4 -S -o combinedTest.s
# main.cpp
# struct Foo {
# int x;
# int y;
# };
# inline __attribute__((always_inline))
# static int helper(Foo &f) {
# return f.x + 3;
# }
# int main(int argc, char *argv[]) {
# Foo foo;
# foo.x = argc;
# foo.y = 3;
# return helper(foo) + foo.x + foo.y;
# }
# helper1.cpp
# struct Foo2 {
# int x;
# int y;
# };
# inline __attribute__((always_inline))
# static int helper(Foo2 &f) {
# return f.x + 3;
# }
# int foo2(int i) {
# Foo2 foo;
# foo.x = i;
# foo.y = 3;
# return helper(foo);
# }
.text
.file "llvm-link"
.globl main # -- Begin function main
.p2align 4, 0x90
.type main,@function
main: # @main
.Lfunc_begin0:
.cfi_startproc
# %bb.0: # %entry
#DEBUG_VALUE: main:argc <- $edi
#DEBUG_VALUE: main:argv <- $rsi
#DEBUG_VALUE: main:foo <- [DW_OP_LLVM_fragment 0 32] $edi
# kill: def $edi killed $edi def $rdi
#DEBUG_VALUE: main:foo <- [DW_OP_LLVM_fragment 32 32] 3
.file 1 "/dwarf4CrossCULocList" "main.cpp"
.loc 1 13 30 prologue_end # main.cpp:13:30
leal 6(,%rdi,2), %eax
.loc 1 13 3 is_stmt 0 # main.cpp:13:3
retq
.Ltmp0:
.Lfunc_end0:
.size main, .Lfunc_end0-main
.cfi_endproc
# -- End function
.globl _Z4foo2i # -- Begin function _Z4foo2i
.p2align 4, 0x90
.type _Z4foo2i,@function
_Z4foo2i: # @_Z4foo2i
.Lfunc_begin1:
.cfi_startproc
# %bb.0: # %entry
#DEBUG_VALUE: foo2:i <- $edi
#DEBUG_VALUE: foo2:foo <- [DW_OP_LLVM_fragment 0 32] $edi
# kill: def $edi killed $edi def $rdi
#DEBUG_VALUE: foo2:foo <- [DW_OP_LLVM_fragment 32 32] 3
.file 2 "/dwarf4CrossCULocList" "helper1.cpp"
.loc 2 7 14 prologue_end is_stmt 1 # helper1.cpp:7:14
leal 3(%rdi), %eax
.Ltmp1:
.loc 2 13 3 # helper1.cpp:13:3
retq
.Ltmp2:
.Lfunc_end1:
.size _Z4foo2i, .Lfunc_end1-_Z4foo2i
.cfi_endproc
# -- End function
.section .debug_loc,"",@progbits
.Ldebug_loc0:
.quad .Lfunc_begin0-.Lfunc_begin0
.quad .Lfunc_end0-.Lfunc_begin0
.short 7 # Loc expr size
.byte 85 # super-register DW_OP_reg5
.byte 147 # DW_OP_piece
.byte 4 # 4
.byte 51 # DW_OP_lit3
.byte 159 # DW_OP_stack_value
.byte 147 # DW_OP_piece
.byte 4 # 4
.quad 0
.quad 0
.Ldebug_loc1:
.quad .Lfunc_begin1-.Lfunc_begin1
.quad .Lfunc_end1-.Lfunc_begin1
.short 7 # Loc expr size
.byte 85 # super-register DW_OP_reg5
.byte 147 # DW_OP_piece
.byte 4 # 4
.byte 51 # DW_OP_lit3
.byte 159 # DW_OP_stack_value
.byte 147 # DW_OP_piece
.byte 4 # 4
.quad 0
.quad 0
.section .debug_abbrev,"",@progbits
.byte 1 # Abbreviation Code
.byte 17 # DW_TAG_compile_unit
.byte 1 # DW_CHILDREN_yes
.byte 37 # DW_AT_producer
.byte 14 # DW_FORM_strp
.byte 19 # DW_AT_language
.byte 5 # DW_FORM_data2
.byte 3 # DW_AT_name
.byte 14 # DW_FORM_strp
.byte 16 # DW_AT_stmt_list
.byte 23 # DW_FORM_sec_offset
.byte 27 # DW_AT_comp_dir
.byte 14 # DW_FORM_strp
.byte 17 # DW_AT_low_pc
.byte 1 # DW_FORM_addr
.byte 18 # DW_AT_high_pc
.byte 6 # DW_FORM_data4
.byte 0 # EOM(1)
.byte 0 # EOM(2)
.byte 2 # Abbreviation Code
.byte 46 # DW_TAG_subprogram
.byte 1 # DW_CHILDREN_yes
.byte 17 # DW_AT_low_pc
.byte 1 # DW_FORM_addr
.byte 18 # DW_AT_high_pc
.byte 6 # DW_FORM_data4
.byte 64 # DW_AT_frame_base
.byte 24 # DW_FORM_exprloc
.ascii "\227B" # DW_AT_GNU_all_call_sites
.byte 25 # DW_FORM_flag_present
.byte 3 # DW_AT_name
.byte 14 # DW_FORM_strp
.byte 58 # DW_AT_decl_file
.byte 11 # DW_FORM_data1
.byte 59 # DW_AT_decl_line
.byte 11 # DW_FORM_data1
.byte 73 # DW_AT_type
.byte 16 # DW_FORM_ref_addr
.byte 63 # DW_AT_external
.byte 25 # DW_FORM_flag_present
.byte 0 # EOM(1)
.byte 0 # EOM(2)
.byte 3 # Abbreviation Code
.byte 5 # DW_TAG_formal_parameter
.byte 0 # DW_CHILDREN_no
.byte 2 # DW_AT_location
.byte 24 # DW_FORM_exprloc
.byte 3 # DW_AT_name
.byte 14 # DW_FORM_strp
.byte 58 # DW_AT_decl_file
.byte 11 # DW_FORM_data1
.byte 59 # DW_AT_decl_line
.byte 11 # DW_FORM_data1
.byte 73 # DW_AT_type
.byte 16 # DW_FORM_ref_addr
.byte 0 # EOM(1)
.byte 0 # EOM(2)
.byte 4 # Abbreviation Code
.byte 5 # DW_TAG_formal_parameter
.byte 0 # DW_CHILDREN_no
.byte 2 # DW_AT_location
.byte 24 # DW_FORM_exprloc
.byte 3 # DW_AT_name
.byte 14 # DW_FORM_strp
.byte 58 # DW_AT_decl_file
.byte 11 # DW_FORM_data1
.byte 59 # DW_AT_decl_line
.byte 11 # DW_FORM_data1
.byte 73 # DW_AT_type
.byte 19 # DW_FORM_ref4
.byte 0 # EOM(1)
.byte 0 # EOM(2)
.byte 5 # Abbreviation Code
.byte 52 # DW_TAG_variable
.byte 0 # DW_CHILDREN_no
.byte 2 # DW_AT_location
.byte 23 # DW_FORM_sec_offset
.byte 3 # DW_AT_name
.byte 14 # DW_FORM_strp
.byte 58 # DW_AT_decl_file
.byte 11 # DW_FORM_data1
.byte 59 # DW_AT_decl_line
.byte 11 # DW_FORM_data1
.byte 73 # DW_AT_type
.byte 19 # DW_FORM_ref4
.byte 0 # EOM(1)
.byte 0 # EOM(2)
.byte 6 # Abbreviation Code
.byte 15 # DW_TAG_pointer_type
.byte 0 # DW_CHILDREN_no
.byte 73 # DW_AT_type
.byte 19 # DW_FORM_ref4
.byte 0 # EOM(1)
.byte 0 # EOM(2)
.byte 7 # Abbreviation Code
.byte 36 # DW_TAG_base_type
.byte 0 # DW_CHILDREN_no
.byte 3 # DW_AT_name
.byte 14 # DW_FORM_strp
.byte 62 # DW_AT_encoding
.byte 11 # DW_FORM_data1
.byte 11 # DW_AT_byte_size
.byte 11 # DW_FORM_data1
.byte 0 # EOM(1)
.byte 0 # EOM(2)
.byte 8 # Abbreviation Code
.byte 19 # DW_TAG_structure_type
.byte 1 # DW_CHILDREN_yes
.byte 54 # DW_AT_calling_convention
.byte 11 # DW_FORM_data1
.byte 3 # DW_AT_name
.byte 14 # DW_FORM_strp
.byte 11 # DW_AT_byte_size
.byte 11 # DW_FORM_data1
.byte 58 # DW_AT_decl_file
.byte 11 # DW_FORM_data1
.byte 59 # DW_AT_decl_line
.byte 11 # DW_FORM_data1
.byte 0 # EOM(1)
.byte 0 # EOM(2)
.byte 9 # Abbreviation Code
.byte 13 # DW_TAG_member
.byte 0 # DW_CHILDREN_no
.byte 3 # DW_AT_name
.byte 14 # DW_FORM_strp
.byte 73 # DW_AT_type
.byte 16 # DW_FORM_ref_addr
.byte 58 # DW_AT_decl_file
.byte 11 # DW_FORM_data1
.byte 59 # DW_AT_decl_line
.byte 11 # DW_FORM_data1
.byte 56 # DW_AT_data_member_location
.byte 11 # DW_FORM_data1
.byte 0 # EOM(1)
.byte 0 # EOM(2)
.byte 10 # Abbreviation Code
.byte 46 # DW_TAG_subprogram
.byte 1 # DW_CHILDREN_yes
.byte 110 # DW_AT_linkage_name
.byte 14 # DW_FORM_strp
.byte 3 # DW_AT_name
.byte 14 # DW_FORM_strp
.byte 58 # DW_AT_decl_file
.byte 11 # DW_FORM_data1
.byte 59 # DW_AT_decl_line
.byte 11 # DW_FORM_data1
.byte 73 # DW_AT_type
.byte 19 # DW_FORM_ref4
.byte 32 # DW_AT_inline
.byte 11 # DW_FORM_data1
.byte 0 # EOM(1)
.byte 0 # EOM(2)
.byte 11 # Abbreviation Code
.byte 5 # DW_TAG_formal_parameter
.byte 0 # DW_CHILDREN_no
.byte 3 # DW_AT_name
.byte 14 # DW_FORM_strp
.byte 58 # DW_AT_decl_file
.byte 11 # DW_FORM_data1
.byte 59 # DW_AT_decl_line
.byte 11 # DW_FORM_data1
.byte 73 # DW_AT_type
.byte 19 # DW_FORM_ref4
.byte 0 # EOM(1)
.byte 0 # EOM(2)
.byte 12 # Abbreviation Code
.byte 16 # DW_TAG_reference_type
.byte 0 # DW_CHILDREN_no
.byte 73 # DW_AT_type
.byte 19 # DW_FORM_ref4
.byte 0 # EOM(1)
.byte 0 # EOM(2)
.byte 13 # Abbreviation Code
.byte 13 # DW_TAG_member
.byte 0 # DW_CHILDREN_no
.byte 3 # DW_AT_name
.byte 14 # DW_FORM_strp
.byte 73 # DW_AT_type
.byte 19 # DW_FORM_ref4
.byte 58 # DW_AT_decl_file
.byte 11 # DW_FORM_data1
.byte 59 # DW_AT_decl_line
.byte 11 # DW_FORM_data1
.byte 56 # DW_AT_data_member_location
.byte 11 # DW_FORM_data1
.byte 0 # EOM(1)
.byte 0 # EOM(2)
.byte 14 # Abbreviation Code
.byte 46 # DW_TAG_subprogram
.byte 1 # DW_CHILDREN_yes
.byte 17 # DW_AT_low_pc
.byte 1 # DW_FORM_addr
.byte 18 # DW_AT_high_pc
.byte 6 # DW_FORM_data4
.byte 64 # DW_AT_frame_base
.byte 24 # DW_FORM_exprloc
.ascii "\227B" # DW_AT_GNU_all_call_sites
.byte 25 # DW_FORM_flag_present
.byte 110 # DW_AT_linkage_name
.byte 14 # DW_FORM_strp
.byte 3 # DW_AT_name
.byte 14 # DW_FORM_strp
.byte 58 # DW_AT_decl_file
.byte 11 # DW_FORM_data1
.byte 59 # DW_AT_decl_line
.byte 11 # DW_FORM_data1
.byte 73 # DW_AT_type
.byte 19 # DW_FORM_ref4
.byte 63 # DW_AT_external
.byte 25 # DW_FORM_flag_present
.byte 0 # EOM(1)
.byte 0 # EOM(2)
.byte 15 # Abbreviation Code
.byte 29 # DW_TAG_inlined_subroutine
.byte 0 # DW_CHILDREN_no
.byte 49 # DW_AT_abstract_origin
.byte 19 # DW_FORM_ref4
.byte 17 # DW_AT_low_pc
.byte 1 # DW_FORM_addr
.byte 18 # DW_AT_high_pc
.byte 6 # DW_FORM_data4
.byte 88 # DW_AT_call_file
.byte 11 # DW_FORM_data1
.byte 89 # DW_AT_call_line
.byte 11 # DW_FORM_data1
.byte 87 # DW_AT_call_column
.byte 11 # DW_FORM_data1
.byte 0 # EOM(1)
.byte 0 # EOM(2)
.byte 0 # EOM(3)
.section .debug_info,"",@progbits
.Lcu_begin0:
.long .Ldebug_info_end0-.Ldebug_info_start0 # Length of Unit
.Ldebug_info_start0:
.short 4 # DWARF version number
.long .debug_abbrev # Offset Into Abbrev. Section
.byte 8 # Address Size (in bytes)
.byte 1 # Abbrev [1] 0xb:0x96 DW_TAG_compile_unit
.long .Linfo_string0 # DW_AT_producer
.short 33 # DW_AT_language
.long .Linfo_string1 # DW_AT_name
.long .Lline_table_start0 # DW_AT_stmt_list
.long .Linfo_string2 # DW_AT_comp_dir
.quad .Lfunc_begin0 # DW_AT_low_pc
.long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc
.byte 2 # Abbrev [2] 0x2a:0x43 DW_TAG_subprogram
.quad .Lfunc_begin0 # DW_AT_low_pc
.long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc
.byte 1 # DW_AT_frame_base
.byte 87
# DW_AT_GNU_all_call_sites
.long .Linfo_string11 # DW_AT_name
.byte 1 # DW_AT_decl_file
.byte 9 # DW_AT_decl_line
.long .debug_info+231 # DW_AT_type
# DW_AT_external
.byte 3 # Abbrev [3] 0x43:0xd DW_TAG_formal_parameter
.byte 1 # DW_AT_location
.byte 85
.long .Linfo_string14 # DW_AT_name
.byte 1 # DW_AT_decl_file
.byte 9 # DW_AT_decl_line
.long .debug_info+231 # DW_AT_type
.byte 4 # Abbrev [4] 0x50:0xd DW_TAG_formal_parameter
.byte 1 # DW_AT_location
.byte 84
.long .Linfo_string15 # DW_AT_name
.byte 1 # DW_AT_decl_file
.byte 9 # DW_AT_decl_line
.long 109 # DW_AT_type
.byte 5 # Abbrev [5] 0x5d:0xf DW_TAG_variable
.long .Ldebug_loc0 # DW_AT_location
.long .Linfo_string17 # DW_AT_name
.byte 1 # DW_AT_decl_file
.byte 10 # DW_AT_decl_line
.long 126 # DW_AT_type
.byte 0 # End Of Children Mark
.byte 6 # Abbrev [6] 0x6d:0x5 DW_TAG_pointer_type
.long 114 # DW_AT_type
.byte 6 # Abbrev [6] 0x72:0x5 DW_TAG_pointer_type
.long 119 # DW_AT_type
.byte 7 # Abbrev [7] 0x77:0x7 DW_TAG_base_type
.long .Linfo_string16 # DW_AT_name
.byte 6 # DW_AT_encoding
.byte 1 # DW_AT_byte_size
.byte 8 # Abbrev [8] 0x7e:0x22 DW_TAG_structure_type
.byte 5 # DW_AT_calling_convention
.long .Linfo_string18 # DW_AT_name
.byte 8 # DW_AT_byte_size
.byte 1 # DW_AT_decl_file
.byte 1 # DW_AT_decl_line
.byte 9 # Abbrev [9] 0x87:0xc DW_TAG_member
.long .Linfo_string8 # DW_AT_name
.long .debug_info+231 # DW_AT_type
.byte 1 # DW_AT_decl_file
.byte 2 # DW_AT_decl_line
.byte 0 # DW_AT_data_member_location
.byte 9 # Abbrev [9] 0x93:0xc DW_TAG_member
.long .Linfo_string9 # DW_AT_name
.long .debug_info+231 # DW_AT_type
.byte 1 # DW_AT_decl_file
.byte 3 # DW_AT_decl_line
.byte 4 # DW_AT_data_member_location
.byte 0 # End Of Children Mark
.byte 0 # End Of Children Mark
.Ldebug_info_end0:
.Lcu_begin1:
.long .Ldebug_info_end1-.Ldebug_info_start1 # Length of Unit
.Ldebug_info_start1:
.short 4 # DWARF version number
.long .debug_abbrev # Offset Into Abbrev. Section
.byte 8 # Address Size (in bytes)
.byte 1 # Abbrev [1] 0xb:0xb8 DW_TAG_compile_unit
.long .Linfo_string0 # DW_AT_producer
.short 33 # DW_AT_language
.long .Linfo_string3 # DW_AT_name
.long .Lline_table_start0 # DW_AT_stmt_list
.long .Linfo_string2 # DW_AT_comp_dir
.quad .Lfunc_begin1 # DW_AT_low_pc
.long .Lfunc_end1-.Lfunc_begin1 # DW_AT_high_pc
.byte 10 # Abbrev [10] 0x2a:0x1c DW_TAG_subprogram
.long .Linfo_string4 # DW_AT_linkage_name
.long .Linfo_string5 # DW_AT_name
.byte 2 # DW_AT_decl_file
.byte 6 # DW_AT_decl_line
.long 70 # DW_AT_type
.byte 1 # DW_AT_inline
.byte 11 # Abbrev [11] 0x3a:0xb DW_TAG_formal_parameter
.long .Linfo_string7 # DW_AT_name
.byte 2 # DW_AT_decl_file
.byte 6 # DW_AT_decl_line
.long 77 # DW_AT_type
.byte 0 # End Of Children Mark
.byte 7 # Abbrev [7] 0x46:0x7 DW_TAG_base_type
.long .Linfo_string6 # DW_AT_name
.byte 5 # DW_AT_encoding
.byte 4 # DW_AT_byte_size
.byte 12 # Abbrev [12] 0x4d:0x5 DW_TAG_reference_type
.long 82 # DW_AT_type
.byte 8 # Abbrev [8] 0x52:0x22 DW_TAG_structure_type
.byte 5 # DW_AT_calling_convention
.long .Linfo_string10 # DW_AT_name
.byte 8 # DW_AT_byte_size
.byte 2 # DW_AT_decl_file
.byte 1 # DW_AT_decl_line
.byte 13 # Abbrev [13] 0x5b:0xc DW_TAG_member
.long .Linfo_string8 # DW_AT_name
.long 70 # DW_AT_type
.byte 2 # DW_AT_decl_file
.byte 2 # DW_AT_decl_line
.byte 0 # DW_AT_data_member_location
.byte 13 # Abbrev [13] 0x67:0xc DW_TAG_member
.long .Linfo_string9 # DW_AT_name
.long 70 # DW_AT_type
.byte 2 # DW_AT_decl_file
.byte 3 # DW_AT_decl_line
.byte 4 # DW_AT_data_member_location
.byte 0 # End Of Children Mark
.byte 14 # Abbrev [14] 0x74:0x4e DW_TAG_subprogram
.quad .Lfunc_begin1 # DW_AT_low_pc
.long .Lfunc_end1-.Lfunc_begin1 # DW_AT_high_pc
.byte 1 # DW_AT_frame_base
.byte 87
# DW_AT_GNU_all_call_sites
.long .Linfo_string12 # DW_AT_linkage_name
.long .Linfo_string13 # DW_AT_name
.byte 2 # DW_AT_decl_file
.byte 9 # DW_AT_decl_line
.long 70 # DW_AT_type
# DW_AT_external
.byte 4 # Abbrev [4] 0x91:0xd DW_TAG_formal_parameter
.byte 1 # DW_AT_location
.byte 85
.long .Linfo_string19 # DW_AT_name
.byte 2 # DW_AT_decl_file
.byte 9 # DW_AT_decl_line
.long 70 # DW_AT_type
.byte 5 # Abbrev [5] 0x9e:0xf DW_TAG_variable
.long .Ldebug_loc1 # DW_AT_location
.long .Linfo_string17 # DW_AT_name
.byte 2 # DW_AT_decl_file
.byte 10 # DW_AT_decl_line
.long 82 # DW_AT_type
.byte 15 # Abbrev [15] 0xad:0x14 DW_TAG_inlined_subroutine
.long 42 # DW_AT_abstract_origin
.quad .Lfunc_begin1 # DW_AT_low_pc
.long .Ltmp1-.Lfunc_begin1 # DW_AT_high_pc
.byte 2 # DW_AT_call_file
.byte 13 # DW_AT_call_line
.byte 10 # DW_AT_call_column
.byte 0 # End Of Children Mark
.byte 0 # End Of Children Mark
.Ldebug_info_end1:
.section .debug_str,"MS",@progbits,1
.Linfo_string0:
.asciz "clang version 18.0.0 (git@github.com:llvm/llvm-project.git 37d6c1cc7d4dd3a8a47ba62254bc88521bd50d66)" # string offset=0
.Linfo_string1:
.asciz "main.cpp" # string offset=101
.Linfo_string2:
.asciz "/dwarf4CrossCULocList" # string offset=110
.Linfo_string3:
.asciz "helper1.cpp" # string offset=169
.Linfo_string4:
.asciz "_ZL6helperR4Foo2" # string offset=181
.Linfo_string5:
.asciz "helper" # string offset=198
.Linfo_string6:
.asciz "int" # string offset=205
.Linfo_string7:
.asciz "f" # string offset=209
.Linfo_string8:
.asciz "x" # string offset=211
.Linfo_string9:
.asciz "y" # string offset=213
.Linfo_string10:
.asciz "Foo2" # string offset=215
.Linfo_string11:
.asciz "main" # string offset=220
.Linfo_string12:
.asciz "_Z4foo2i" # string offset=225
.Linfo_string13:
.asciz "foo2" # string offset=234
.Linfo_string14:
.asciz "argc" # string offset=239
.Linfo_string15:
.asciz "argv" # string offset=244
.Linfo_string16:
.asciz "char" # string offset=249
.Linfo_string17:
.asciz "foo" # string offset=254
.Linfo_string18:
.asciz "Foo" # string offset=258
.Linfo_string19:
.asciz "i" # string offset=262
.ident "clang version 18.0.0 (git@github.com:llvm/llvm-project.git 37d6c1cc7d4dd3a8a47ba62254bc88521bd50d66)"
.ident "clang version 18.0.0 (git@github.com:llvm/llvm-project.git 37d6c1cc7d4dd3a8a47ba62254bc88521bd50d66)"
.section ".note.GNU-stack","",@progbits
.addrsig
.section .debug_line,"",@progbits
.Lline_table_start0:

bolt/test/X86/Inputs/dwarf4-two-entries-loclist.s

  • This file was added.
# clang++ helper2.cpp -O2 -g2 -gdwarf-4 -S -o helper2.s
# int z1 = 0;
# int d1 = 0;
#
# int helper31(int z_, int d_) {
# z1 += z_;
# d1 += d_;
# return z1 * d1;
# }
#
#
# int z = 0;
# int d = 0;
#
# int helper3(int z_, int d_) {
# z += z_;
# d += d_;
# return z * d;
# }
.text
.file "helper2.cpp"
.file 1 "/dwarf4CrossCULocList" "helper2.cpp"
.globl _Z8helper31ii # -- Begin function _Z8helper31ii
.p2align 4, 0x90
.type _Z8helper31ii,@function
_Z8helper31ii: # @_Z8helper31ii
.Lfunc_begin0:
.loc 1 4 0 # helper2.cpp:4:0
.cfi_startproc
# %bb.0: # %entry
#DEBUG_VALUE: helper31:z_ <- $edi
#DEBUG_VALUE: helper31:d_ <- $esi
movl %esi, %eax
.Ltmp0:
.loc 1 5 5 prologue_end # helper2.cpp:5:5
addl z1(%rip), %edi
.Ltmp1:
#DEBUG_VALUE: helper31:z_ <- [DW_OP_LLVM_entry_value 1] $edi
.loc 1 6 5 # helper2.cpp:6:5
addl d1(%rip), %eax
.loc 1 5 5 # helper2.cpp:5:5
movl %edi, z1(%rip)
.loc 1 6 5 # helper2.cpp:6:5
movl %eax, d1(%rip)
.loc 1 7 12 # helper2.cpp:7:12
imull %edi, %eax
.loc 1 7 2 is_stmt 0 # helper2.cpp:7:2
retq
.Ltmp2:
.Lfunc_end0:
.size _Z8helper31ii, .Lfunc_end0-_Z8helper31ii
.cfi_endproc
# -- End function
.globl _Z7helper3ii # -- Begin function _Z7helper3ii
.p2align 4, 0x90
.type _Z7helper3ii,@function
_Z7helper3ii: # @_Z7helper3ii
.Lfunc_begin1:
.loc 1 14 0 is_stmt 1 # helper2.cpp:14:0
.cfi_startproc
# %bb.0: # %entry
#DEBUG_VALUE: helper3:z_ <- $edi
#DEBUG_VALUE: helper3:d_ <- $esi
movl %esi, %eax
.Ltmp3:
.loc 1 15 4 prologue_end # helper2.cpp:15:4
addl z(%rip), %edi
.Ltmp4:
#DEBUG_VALUE: helper3:z_ <- [DW_OP_LLVM_entry_value 1] $edi
.loc 1 16 4 # helper2.cpp:16:4
addl d(%rip), %eax
.loc 1 15 4 # helper2.cpp:15:4
movl %edi, z(%rip)
.loc 1 16 4 # helper2.cpp:16:4
movl %eax, d(%rip)
.loc 1 17 11 # helper2.cpp:17:11
imull %edi, %eax
.loc 1 17 2 is_stmt 0 # helper2.cpp:17:2
retq
.Ltmp5:
.Lfunc_end1:
.size _Z7helper3ii, .Lfunc_end1-_Z7helper3ii
.cfi_endproc
# -- End function
.type z1,@object # @z1
.bss
.globl z1
.p2align 2, 0x0
z1:
.long 0 # 0x0
.size z1, 4
.type d1,@object # @d1
.globl d1
.p2align 2, 0x0
d1:
.long 0 # 0x0
.size d1, 4
.type z,@object # @z
.globl z
.p2align 2, 0x0
z:
.long 0 # 0x0
.size z, 4
.type d,@object # @d
.globl d
.p2align 2, 0x0
d:
.long 0 # 0x0
.size d, 4
.section .debug_loc,"",@progbits
.Ldebug_loc0:
.quad .Lfunc_begin0-.Lfunc_begin0
.quad .Ltmp1-.Lfunc_begin0
.short 1 # Loc expr size
.byte 85 # super-register DW_OP_reg5
.quad .Ltmp1-.Lfunc_begin0
.quad .Lfunc_end0-.Lfunc_begin0
.short 4 # Loc expr size
.byte 243 # DW_OP_GNU_entry_value
.byte 1 # 1
.byte 85 # super-register DW_OP_reg5
.byte 159 # DW_OP_stack_value
.quad 0
.quad 0
.Ldebug_loc1:
.quad .Lfunc_begin1-.Lfunc_begin0
.quad .Ltmp4-.Lfunc_begin0
.short 1 # Loc expr size
.byte 85 # super-register DW_OP_reg5
.quad .Ltmp4-.Lfunc_begin0
.quad .Lfunc_end1-.Lfunc_begin0
.short 4 # Loc expr size
.byte 243 # DW_OP_GNU_entry_value
.byte 1 # 1
.byte 85 # super-register DW_OP_reg5
.byte 159 # DW_OP_stack_value
.quad 0
.quad 0
.section .debug_abbrev,"",@progbits
.byte 1 # Abbreviation Code
.byte 17 # DW_TAG_compile_unit
.byte 1 # DW_CHILDREN_yes
.byte 37 # DW_AT_producer
.byte 14 # DW_FORM_strp
.byte 19 # DW_AT_language
.byte 5 # DW_FORM_data2
.byte 3 # DW_AT_name
.byte 14 # DW_FORM_strp
.byte 16 # DW_AT_stmt_list
.byte 23 # DW_FORM_sec_offset
.byte 27 # DW_AT_comp_dir
.byte 14 # DW_FORM_strp
.byte 17 # DW_AT_low_pc
.byte 1 # DW_FORM_addr
.byte 18 # DW_AT_high_pc
.byte 6 # DW_FORM_data4
.byte 0 # EOM(1)
.byte 0 # EOM(2)
.byte 2 # Abbreviation Code
.byte 52 # DW_TAG_variable
.byte 0 # DW_CHILDREN_no
.byte 3 # DW_AT_name
.byte 14 # DW_FORM_strp
.byte 73 # DW_AT_type
.byte 19 # DW_FORM_ref4
.byte 63 # DW_AT_external
.byte 25 # DW_FORM_flag_present
.byte 58 # DW_AT_decl_file
.byte 11 # DW_FORM_data1
.byte 59 # DW_AT_decl_line
.byte 11 # DW_FORM_data1
.byte 2 # DW_AT_location
.byte 24 # DW_FORM_exprloc
.byte 0 # EOM(1)
.byte 0 # EOM(2)
.byte 3 # Abbreviation Code
.byte 36 # DW_TAG_base_type
.byte 0 # DW_CHILDREN_no
.byte 3 # DW_AT_name
.byte 14 # DW_FORM_strp
.byte 62 # DW_AT_encoding
.byte 11 # DW_FORM_data1
.byte 11 # DW_AT_byte_size
.byte 11 # DW_FORM_data1
.byte 0 # EOM(1)
.byte 0 # EOM(2)
.byte 4 # Abbreviation Code
.byte 46 # DW_TAG_subprogram
.byte 1 # DW_CHILDREN_yes
.byte 17 # DW_AT_low_pc
.byte 1 # DW_FORM_addr
.byte 18 # DW_AT_high_pc
.byte 6 # DW_FORM_data4
.byte 64 # DW_AT_frame_base
.byte 24 # DW_FORM_exprloc
.ascii "\227B" # DW_AT_GNU_all_call_sites
.byte 25 # DW_FORM_flag_present
.byte 110 # DW_AT_linkage_name
.byte 14 # DW_FORM_strp
.byte 3 # DW_AT_name
.byte 14 # DW_FORM_strp
.byte 58 # DW_AT_decl_file
.byte 11 # DW_FORM_data1
.byte 59 # DW_AT_decl_line
.byte 11 # DW_FORM_data1
.byte 73 # DW_AT_type
.byte 19 # DW_FORM_ref4
.byte 63 # DW_AT_external
.byte 25 # DW_FORM_flag_present
.byte 0 # EOM(1)
.byte 0 # EOM(2)
.byte 5 # Abbreviation Code
.byte 5 # DW_TAG_formal_parameter
.byte 0 # DW_CHILDREN_no
.byte 2 # DW_AT_location
.byte 23 # DW_FORM_sec_offset
.byte 3 # DW_AT_name
.byte 14 # DW_FORM_strp
.byte 58 # DW_AT_decl_file
.byte 11 # DW_FORM_data1
.byte 59 # DW_AT_decl_line
.byte 11 # DW_FORM_data1
.byte 73 # DW_AT_type
.byte 19 # DW_FORM_ref4
.byte 0 # EOM(1)
.byte 0 # EOM(2)
.byte 6 # Abbreviation Code
.byte 5 # DW_TAG_formal_parameter
.byte 0 # DW_CHILDREN_no
.byte 2 # DW_AT_location
.byte 24 # DW_FORM_exprloc
.byte 3 # DW_AT_name
.byte 14 # DW_FORM_strp
.byte 58 # DW_AT_decl_file
.byte 11 # DW_FORM_data1
.byte 59 # DW_AT_decl_line
.byte 11 # DW_FORM_data1
.byte 73 # DW_AT_type
.byte 19 # DW_FORM_ref4
.byte 0 # EOM(1)
.byte 0 # EOM(2)
.byte 0 # EOM(3)
.section .debug_info,"",@progbits
.Lcu_begin0:
.long .Ldebug_info_end0-.Ldebug_info_start0 # Length of Unit
.Ldebug_info_start0:
.short 4 # DWARF version number
.long .debug_abbrev # Offset Into Abbrev. Section
.byte 8 # Address Size (in bytes)
.byte 1 # Abbrev [1] 0xb:0xef DW_TAG_compile_unit
.long .Linfo_string0 # DW_AT_producer
.short 33 # DW_AT_language
.long .Linfo_string1 # DW_AT_name
.long .Lline_table_start0 # DW_AT_stmt_list
.long .Linfo_string2 # DW_AT_comp_dir
.quad .Lfunc_begin0 # DW_AT_low_pc
.long .Lfunc_end1-.Lfunc_begin0 # DW_AT_high_pc
.byte 2 # Abbrev [2] 0x2a:0x15 DW_TAG_variable
.long .Linfo_string3 # DW_AT_name
.long 63 # DW_AT_type
# DW_AT_external
.byte 1 # DW_AT_decl_file
.byte 1 # DW_AT_decl_line
.byte 9 # DW_AT_location
.byte 3
.quad z1
.byte 3 # Abbrev [3] 0x3f:0x7 DW_TAG_base_type
.long .Linfo_string4 # DW_AT_name
.byte 5 # DW_AT_encoding
.byte 4 # DW_AT_byte_size
.byte 2 # Abbrev [2] 0x46:0x15 DW_TAG_variable
.long .Linfo_string5 # DW_AT_name
.long 63 # DW_AT_type
# DW_AT_external
.byte 1 # DW_AT_decl_file
.byte 2 # DW_AT_decl_line
.byte 9 # DW_AT_location
.byte 3
.quad d1
.byte 2 # Abbrev [2] 0x5b:0x15 DW_TAG_variable
.long .Linfo_string6 # DW_AT_name
.long 63 # DW_AT_type
# DW_AT_external
.byte 1 # DW_AT_decl_file
.byte 11 # DW_AT_decl_line
.byte 9 # DW_AT_location
.byte 3
.quad z
.byte 2 # Abbrev [2] 0x70:0x15 DW_TAG_variable
.long .Linfo_string7 # DW_AT_name
.long 63 # DW_AT_type
# DW_AT_external
.byte 1 # DW_AT_decl_file
.byte 12 # DW_AT_decl_line
.byte 9 # DW_AT_location
.byte 3
.quad d
.byte 4 # Abbrev [4] 0x85:0x3a DW_TAG_subprogram
.quad .Lfunc_begin0 # DW_AT_low_pc
.long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc
.byte 1 # DW_AT_frame_base
.byte 87
# DW_AT_GNU_all_call_sites
.long .Linfo_string8 # DW_AT_linkage_name
.long .Linfo_string9 # DW_AT_name
.byte 1 # DW_AT_decl_file
.byte 4 # DW_AT_decl_line
.long 63 # DW_AT_type
# DW_AT_external
.byte 5 # Abbrev [5] 0xa2:0xf DW_TAG_formal_parameter
.long .Ldebug_loc0 # DW_AT_location
.long .Linfo_string12 # DW_AT_name
.byte 1 # DW_AT_decl_file
.byte 4 # DW_AT_decl_line
.long 63 # DW_AT_type
.byte 6 # Abbrev [6] 0xb1:0xd DW_TAG_formal_parameter
.byte 1 # DW_AT_location
.byte 84
.long .Linfo_string13 # DW_AT_name
.byte 1 # DW_AT_decl_file
.byte 4 # DW_AT_decl_line
.long 63 # DW_AT_type
.byte 0 # End Of Children Mark
.byte 4 # Abbrev [4] 0xbf:0x3a DW_TAG_subprogram
.quad .Lfunc_begin1 # DW_AT_low_pc
.long .Lfunc_end1-.Lfunc_begin1 # DW_AT_high_pc
.byte 1 # DW_AT_frame_base
.byte 87
# DW_AT_GNU_all_call_sites
.long .Linfo_string10 # DW_AT_linkage_name
.long .Linfo_string11 # DW_AT_name
.byte 1 # DW_AT_decl_file
.byte 14 # DW_AT_decl_line
.long 63 # DW_AT_type
# DW_AT_external
.byte 5 # Abbrev [5] 0xdc:0xf DW_TAG_formal_parameter
.long .Ldebug_loc1 # DW_AT_location
.long .Linfo_string12 # DW_AT_name
.byte 1 # DW_AT_decl_file
.byte 14 # DW_AT_decl_line
.long 63 # DW_AT_type
.byte 6 # Abbrev [6] 0xeb:0xd DW_TAG_formal_parameter
.byte 1 # DW_AT_location
.byte 84
.long .Linfo_string13 # DW_AT_name
.byte 1 # DW_AT_decl_file
.byte 14 # DW_AT_decl_line
.long 63 # DW_AT_type
.byte 0 # End Of Children Mark
.byte 0 # End Of Children Mark
.Ldebug_info_end0:
.section .debug_str,"MS",@progbits,1
.Linfo_string0:
.asciz "clang version 18.0.0 (git@github.com:llvm/llvm-project.git 37d6c1cc7d4dd3a8a47ba62254bc88521bd50d66)" # string offset=0
.Linfo_string1:
.asciz "helper2.cpp" # string offset=101
.Linfo_string2:
.asciz "/dwarf4CrossCULocList" # string offset=113
.Linfo_string3:
.asciz "z1" # string offset=172
.Linfo_string4:
.asciz "int" # string offset=175
.Linfo_string5:
.asciz "d1" # string offset=179
.Linfo_string6:
.asciz "z" # string offset=182
.Linfo_string7:
.asciz "d" # string offset=184
.Linfo_string8:
.asciz "_Z8helper31ii" # string offset=186
.Linfo_string9:
.asciz "helper31" # string offset=200
.Linfo_string10:
.asciz "_Z7helper3ii" # string offset=209
.Linfo_string11:
.asciz "helper3" # string offset=222
.Linfo_string12:
.asciz "z_" # string offset=230
.Linfo_string13:
.asciz "d_" # string offset=233
.ident "clang version 18.0.0 (git@github.com:llvm/llvm-project.git 37d6c1cc7d4dd3a8a47ba62254bc88521bd50d66)"
.section ".note.GNU-stack","",@progbits
.addrsig
.section .debug_line,"",@progbits
.Lline_table_start0:

bolt/test/X86/Inputs/dwarf5-loclist.s

  • This file was added.
# helper.cpp -O1 -g2 -gdwarf-5 -S -o helper.s
# struct Foo1 {
# int x;
# int y;
# };
# inline __attribute__((always_inline))
# static int helper(Foo1 &f) {
# return f.x + 3;
# }
# int foo(int i) {
# Foo1 foo;
# foo.x = i;
# foo.y = 3;
# return helper(foo);
# }
.text
.file "helper.cpp"
.globl _Z3fooi # -- Begin function _Z3fooi
.p2align 4, 0x90
.type _Z3fooi,@function
_Z3fooi: # @_Z3fooi
.Lfunc_begin0:
.file 0 "/home/ayermolo/local/tasks/T160428655/dwarf4CrossCULocList" "helper.cpp" md5 0xc9271b4999165863c559e42d691423d1
.cfi_startproc
# %bb.0: # %entry
#DEBUG_VALUE: foo:i <- $edi
#DEBUG_VALUE: foo:foo <- [DW_OP_LLVM_fragment 0 32] $edi
# kill: def $edi killed $edi def $rdi
#DEBUG_VALUE: foo:foo <- [DW_OP_LLVM_fragment 32 32] 3
.loc 0 7 14 prologue_end # helper.cpp:7:14
leal 3(%rdi), %eax
.Ltmp0:
.loc 0 13 3 # helper.cpp:13:3
retq
.Ltmp1:
.Lfunc_end0:
.size _Z3fooi, .Lfunc_end0-_Z3fooi
.cfi_endproc
# -- End function
.section .debug_loclists,"",@progbits
.long .Ldebug_list_header_end0-.Ldebug_list_header_start0 # Length
.Ldebug_list_header_start0:
.short 5 # Version
.byte 8 # Address size
.byte 0 # Segment selector size
.long 1 # Offset entry count
.Lloclists_table_base0:
.long .Ldebug_loc0-.Lloclists_table_base0
.Ldebug_loc0:
.byte 4 # DW_LLE_offset_pair
.uleb128 .Lfunc_begin0-.Lfunc_begin0 # starting offset
.uleb128 .Lfunc_end0-.Lfunc_begin0 # ending offset
.byte 7 # Loc expr size
.byte 85 # super-register DW_OP_reg5
.byte 147 # DW_OP_piece
.byte 4 # 4
.byte 51 # DW_OP_lit3
.byte 159 # DW_OP_stack_value
.byte 147 # DW_OP_piece
.byte 4 # 4
.byte 0 # DW_LLE_end_of_list
.Ldebug_list_header_end0:
.section .debug_abbrev,"",@progbits
.byte 1 # Abbreviation Code
.byte 17 # DW_TAG_compile_unit
.byte 1 # DW_CHILDREN_yes
.byte 37 # DW_AT_producer
.byte 37 # DW_FORM_strx1
.byte 19 # DW_AT_language
.byte 5 # DW_FORM_data2
.byte 3 # DW_AT_name
.byte 37 # DW_FORM_strx1
.byte 114 # DW_AT_str_offsets_base
.byte 23 # DW_FORM_sec_offset
.byte 16 # DW_AT_stmt_list
.byte 23 # DW_FORM_sec_offset
.byte 27 # DW_AT_comp_dir
.byte 37 # DW_FORM_strx1
.byte 17 # DW_AT_low_pc
.byte 27 # DW_FORM_addrx
.byte 18 # DW_AT_high_pc
.byte 6 # DW_FORM_data4
.byte 115 # DW_AT_addr_base
.byte 23 # DW_FORM_sec_offset
.ascii "\214\001" # DW_AT_loclists_base
.byte 23 # DW_FORM_sec_offset
.byte 0 # EOM(1)
.byte 0 # EOM(2)
.byte 2 # Abbreviation Code
.byte 46 # DW_TAG_subprogram
.byte 1 # DW_CHILDREN_yes
.byte 110 # DW_AT_linkage_name
.byte 37 # DW_FORM_strx1
.byte 3 # DW_AT_name
.byte 37 # DW_FORM_strx1
.byte 58 # DW_AT_decl_file
.byte 11 # DW_FORM_data1
.byte 59 # DW_AT_decl_line
.byte 11 # DW_FORM_data1
.byte 73 # DW_AT_type
.byte 19 # DW_FORM_ref4
.byte 32 # DW_AT_inline
.byte 33 # DW_FORM_implicit_const
.byte 1
.byte 0 # EOM(1)
.byte 0 # EOM(2)
.byte 3 # Abbreviation Code
.byte 5 # DW_TAG_formal_parameter
.byte 0 # DW_CHILDREN_no
.byte 3 # DW_AT_name
.byte 37 # DW_FORM_strx1
.byte 58 # DW_AT_decl_file
.byte 11 # DW_FORM_data1
.byte 59 # DW_AT_decl_line
.byte 11 # DW_FORM_data1
.byte 73 # DW_AT_type
.byte 19 # DW_FORM_ref4
.byte 0 # EOM(1)
.byte 0 # EOM(2)
.byte 4 # Abbreviation Code
.byte 36 # DW_TAG_base_type
.byte 0 # DW_CHILDREN_no
.byte 3 # DW_AT_name
.byte 37 # DW_FORM_strx1
.byte 62 # DW_AT_encoding
.byte 11 # DW_FORM_data1
.byte 11 # DW_AT_byte_size
.byte 11 # DW_FORM_data1
.byte 0 # EOM(1)
.byte 0 # EOM(2)
.byte 5 # Abbreviation Code
.byte 16 # DW_TAG_reference_type
.byte 0 # DW_CHILDREN_no
.byte 73 # DW_AT_type
.byte 19 # DW_FORM_ref4
.byte 0 # EOM(1)
.byte 0 # EOM(2)
.byte 6 # Abbreviation Code
.byte 19 # DW_TAG_structure_type
.byte 1 # DW_CHILDREN_yes
.byte 54 # DW_AT_calling_convention
.byte 11 # DW_FORM_data1
.byte 3 # DW_AT_name
.byte 37 # DW_FORM_strx1
.byte 11 # DW_AT_byte_size
.byte 11 # DW_FORM_data1
.byte 58 # DW_AT_decl_file
.byte 11 # DW_FORM_data1
.byte 59 # DW_AT_decl_line
.byte 11 # DW_FORM_data1
.byte 0 # EOM(1)
.byte 0 # EOM(2)
.byte 7 # Abbreviation Code
.byte 13 # DW_TAG_member
.byte 0 # DW_CHILDREN_no
.byte 3 # DW_AT_name
.byte 37 # DW_FORM_strx1
.byte 73 # DW_AT_type
.byte 19 # DW_FORM_ref4
.byte 58 # DW_AT_decl_file
.byte 11 # DW_FORM_data1
.byte 59 # DW_AT_decl_line
.byte 11 # DW_FORM_data1
.byte 56 # DW_AT_data_member_location
.byte 11 # DW_FORM_data1
.byte 0 # EOM(1)
.byte 0 # EOM(2)
.byte 8 # Abbreviation Code
.byte 46 # DW_TAG_subprogram
.byte 1 # DW_CHILDREN_yes
.byte 17 # DW_AT_low_pc
.byte 27 # DW_FORM_addrx
.byte 18 # DW_AT_high_pc
.byte 6 # DW_FORM_data4
.byte 64 # DW_AT_frame_base
.byte 24 # DW_FORM_exprloc
.byte 122 # DW_AT_call_all_calls
.byte 25 # DW_FORM_flag_present
.byte 110 # DW_AT_linkage_name
.byte 37 # DW_FORM_strx1
.byte 3 # DW_AT_name
.byte 37 # DW_FORM_strx1
.byte 58 # DW_AT_decl_file
.byte 11 # DW_FORM_data1
.byte 59 # DW_AT_decl_line
.byte 11 # DW_FORM_data1
.byte 73 # DW_AT_type
.byte 19 # DW_FORM_ref4
.byte 63 # DW_AT_external
.byte 25 # DW_FORM_flag_present
.byte 0 # EOM(1)
.byte 0 # EOM(2)
.byte 9 # Abbreviation Code
.byte 5 # DW_TAG_formal_parameter
.byte 0 # DW_CHILDREN_no
.byte 2 # DW_AT_location
.byte 24 # DW_FORM_exprloc
.byte 3 # DW_AT_name
.byte 37 # DW_FORM_strx1
.byte 58 # DW_AT_decl_file
.byte 11 # DW_FORM_data1
.byte 59 # DW_AT_decl_line
.byte 11 # DW_FORM_data1
.byte 73 # DW_AT_type
.byte 19 # DW_FORM_ref4
.byte 0 # EOM(1)
.byte 0 # EOM(2)
.byte 10 # Abbreviation Code
.byte 52 # DW_TAG_variable
.byte 0 # DW_CHILDREN_no
.byte 2 # DW_AT_location
.byte 34 # DW_FORM_loclistx
.byte 3 # DW_AT_name
.byte 37 # DW_FORM_strx1
.byte 58 # DW_AT_decl_file
.byte 11 # DW_FORM_data1
.byte 59 # DW_AT_decl_line
.byte 11 # DW_FORM_data1
.byte 73 # DW_AT_type
.byte 19 # DW_FORM_ref4
.byte 0 # EOM(1)
.byte 0 # EOM(2)
.byte 11 # Abbreviation Code
.byte 29 # DW_TAG_inlined_subroutine
.byte 0 # DW_CHILDREN_no
.byte 49 # DW_AT_abstract_origin
.byte 19 # DW_FORM_ref4
.byte 17 # DW_AT_low_pc
.byte 27 # DW_FORM_addrx
.byte 18 # DW_AT_high_pc
.byte 6 # DW_FORM_data4
.byte 88 # DW_AT_call_file
.byte 11 # DW_FORM_data1
.byte 89 # DW_AT_call_line
.byte 11 # DW_FORM_data1
.byte 87 # DW_AT_call_column
.byte 11 # DW_FORM_data1
.byte 0 # EOM(1)
.byte 0 # EOM(2)
.byte 0 # EOM(3)
.section .debug_info,"",@progbits
.Lcu_begin0:
.long .Ldebug_info_end0-.Ldebug_info_start0 # Length of Unit
.Ldebug_info_start0:
.short 5 # DWARF version number
.byte 1 # DWARF Unit Type
.byte 8 # Address Size (in bytes)
.long .debug_abbrev # Offset Into Abbrev. Section
.byte 1 # Abbrev [1] 0xc:0x81 DW_TAG_compile_unit
.byte 0 # DW_AT_producer
.short 33 # DW_AT_language
.byte 1 # DW_AT_name
.long .Lstr_offsets_base0 # DW_AT_str_offsets_base
.long .Lline_table_start0 # DW_AT_stmt_list
.byte 2 # DW_AT_comp_dir
.byte 0 # DW_AT_low_pc
.long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc
.long .Laddr_table_base0 # DW_AT_addr_base
.long .Lloclists_table_base0 # DW_AT_loclists_base
.byte 2 # Abbrev [2] 0x27:0x12 DW_TAG_subprogram
.byte 3 # DW_AT_linkage_name
.byte 4 # DW_AT_name
.byte 0 # DW_AT_decl_file
.byte 6 # DW_AT_decl_line
.long 57 # DW_AT_type
# DW_AT_inline
.byte 3 # Abbrev [3] 0x30:0x8 DW_TAG_formal_parameter
.byte 6 # DW_AT_name
.byte 0 # DW_AT_decl_file
.byte 6 # DW_AT_decl_line
.long 61 # DW_AT_type
.byte 0 # End Of Children Mark
.byte 4 # Abbrev [4] 0x39:0x4 DW_TAG_base_type
.byte 5 # DW_AT_name
.byte 5 # DW_AT_encoding
.byte 4 # DW_AT_byte_size
.byte 5 # Abbrev [5] 0x3d:0x5 DW_TAG_reference_type
.long 66 # DW_AT_type
.byte 6 # Abbrev [6] 0x42:0x19 DW_TAG_structure_type
.byte 5 # DW_AT_calling_convention
.byte 9 # DW_AT_name
.byte 8 # DW_AT_byte_size
.byte 0 # DW_AT_decl_file
.byte 1 # DW_AT_decl_line
.byte 7 # Abbrev [7] 0x48:0x9 DW_TAG_member
.byte 7 # DW_AT_name
.long 57 # DW_AT_type
.byte 0 # DW_AT_decl_file
.byte 2 # DW_AT_decl_line
.byte 0 # DW_AT_data_member_location
.byte 7 # Abbrev [7] 0x51:0x9 DW_TAG_member
.byte 8 # DW_AT_name
.long 57 # DW_AT_type
.byte 0 # DW_AT_decl_file
.byte 3 # DW_AT_decl_line
.byte 4 # DW_AT_data_member_location
.byte 0 # End Of Children Mark
.byte 8 # Abbrev [8] 0x5b:0x31 DW_TAG_subprogram
.byte 0 # DW_AT_low_pc
.long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc
.byte 1 # DW_AT_frame_base
.byte 87
# DW_AT_call_all_calls
.byte 10 # DW_AT_linkage_name
.byte 11 # DW_AT_name
.byte 0 # DW_AT_decl_file
.byte 9 # DW_AT_decl_line
.long 57 # DW_AT_type
# DW_AT_external
.byte 9 # Abbrev [9] 0x6b:0xa DW_TAG_formal_parameter
.byte 1 # DW_AT_location
.byte 85
.byte 12 # DW_AT_name
.byte 0 # DW_AT_decl_file
.byte 9 # DW_AT_decl_line
.long 57 # DW_AT_type
.byte 10 # Abbrev [10] 0x75:0x9 DW_TAG_variable
.byte 0 # DW_AT_location
.byte 11 # DW_AT_name
.byte 0 # DW_AT_decl_file
.byte 10 # DW_AT_decl_line
.long 66 # DW_AT_type
.byte 11 # Abbrev [11] 0x7e:0xd DW_TAG_inlined_subroutine
.long 39 # DW_AT_abstract_origin
.byte 0 # DW_AT_low_pc
.long .Ltmp0-.Lfunc_begin0 # DW_AT_high_pc
.byte 0 # DW_AT_call_file
.byte 13 # DW_AT_call_line
.byte 10 # DW_AT_call_column
.byte 0 # End Of Children Mark
.byte 0 # End Of Children Mark
.Ldebug_info_end0:
.section .debug_str_offsets,"",@progbits
.long 56 # Length of String Offsets Set
.short 5
.short 0
.Lstr_offsets_base0:
.section .debug_str,"MS",@progbits,1
.Linfo_string0:
.asciz "clang version 18.0.0 (git@github.com:llvm/llvm-project.git 37d6c1cc7d4dd3a8a47ba62254bc88521bd50d66)" # string offset=0
.Linfo_string1:
.asciz "helper.cpp" # string offset=101
.Linfo_string2:
.asciz "/home/ayermolo/local/tasks/T160428655/dwarf4CrossCULocList" # string offset=112
.Linfo_string3:
.asciz "_ZL6helperR4Foo1" # string offset=171
.Linfo_string4:
.asciz "helper" # string offset=188
.Linfo_string5:
.asciz "int" # string offset=195
.Linfo_string6:
.asciz "f" # string offset=199
.Linfo_string7:
.asciz "x" # string offset=201
.Linfo_string8:
.asciz "y" # string offset=203
.Linfo_string9:
.asciz "Foo1" # string offset=205
.Linfo_string10:
.asciz "_Z3fooi" # string offset=210
.Linfo_string11:
.asciz "foo" # string offset=218
.Linfo_string12:
.asciz "i" # string offset=222
.section .debug_str_offsets,"",@progbits
.long .Linfo_string0
.long .Linfo_string1
.long .Linfo_string2
.long .Linfo_string3
.long .Linfo_string4
.long .Linfo_string5
.long .Linfo_string6
.long .Linfo_string7
.long .Linfo_string8
.long .Linfo_string9
.long .Linfo_string10
.long .Linfo_string11
.long .Linfo_string12
.section .debug_addr,"",@progbits
.long .Ldebug_addr_end0-.Ldebug_addr_start0 # Length of contribution
.Ldebug_addr_start0:
.short 5 # DWARF version number
.byte 8 # Address size
.byte 0 # Segment selector size
.Laddr_table_base0:
.quad .Lfunc_begin0
.Ldebug_addr_end0:
.ident "clang version 18.0.0 (git@github.com:llvm/llvm-project.git 37d6c1cc7d4dd3a8a47ba62254bc88521bd50d66)"
.section ".note.GNU-stack","",@progbits
.addrsig
.section .debug_line,"",@progbits
.Lline_table_start0:

bolt/test/X86/dwarf4-cross-cu-loclist-dwarf4-loclist--dwarf5-loclist.test

  • This file was added.
# REQUIRES: system-linux
# RUN: llvm-mc -dwarf-version=4 -filetype=obj -triple x86_64-unknown-linux %p/Inputs/dwarf4-cross-cu-with-loclist.s -o %t.o
# RUN: llvm-mc -dwarf-version=5 -filetype=obj -triple x86_64-unknown-linux %p/Inputs/dwarf5-loclist.s -o %t1.o
# RUN: llvm-mc -dwarf-version=4 -filetype=obj -triple x86_64-unknown-linux %p/Inputs/dwarf4-two-entries-loclist.s -o %t2.o
# RUN: %clang %cflags %t1.o %t2.o %t.o -o %t.exe
# RUN: llvm-bolt %t.exe -o %t.bolt --update-debug-sections
# RUN: llvm-dwarfdump --show-form --verbose --debug-info %t.exe | FileCheck --check-prefix=PRECHECK %s
# RUN: llvm-dwarfdump --show-form --verbose --debug-info %t.bolt | FileCheck --check-prefix=POSTCHECK %s
# Tests that BOLT correctly handles location list with DWARF5/DWARF4 when order of CUs is not the same as in input.
# PRECHECK: version = 0x0005
# PRECHECK: version = 0x0004
# PRECHECK: version = 0x0004
# PRECHECK: version = 0x0004
# POSTCHECK: version = 0x0004
# POSTCHECK: DW_TAG_formal_parameter
# POSTCHECK-NEXT: DW_AT_location
# POSTCHECK-NEXT: DW_AT_name
# POSTCHECK-NEXT: DW_AT_decl_file
# POSTCHECK-NEXT: DW_AT_decl_line
# POSTCHECK-NEXT: DW_AT_type [DW_FORM_ref_addr]
# POSTCHECK-SAME: "int")
# POSTCHECK: DW_TAG_variable
# POSTCHECK-NEXT: DW_AT_location [DW_FORM_sec_offset]
# POSTCHECK-NEXT: [0x[[#%.16x,ADDR1:]]
# POSTCHECK-SAME: 0x[[#ADDR1 + 0x8]]):
# POSTCHECK-SAME: DW_OP_reg5 RDI, DW_OP_piece 0x4, DW_OP_lit3, DW_OP_stack_value, DW_OP_piece 0x4)
# POSTCHECK: version = 0x0004
# POSTCHECK: DW_TAG_variable
# POSTCHECK-NEXT: DW_AT_location [DW_FORM_sec_offset]
# POSTCHECK-NEXT: [0x[[#%.16x,ADDR2:]]
# POSTCHECK-SAME: 0x[[#ADDR2 + 0x4]]):
# POSTCHECK-SAME: DW_OP_reg5 RDI, DW_OP_piece 0x4, DW_OP_lit3, DW_OP_stack_value, DW_OP_piece 0x4)
# POSTCHECK: version = 0x0005
# POSTCHECK: DW_TAG_variable
# POSTCHECK-NEXT: DW_AT_location [DW_FORM_loclistx] (indexed (0x0) loclist
# POSTCHECK-NEXT: [0x[[#%.16x,ADDR3:]]
# POSTCHECK-SAME: 0x[[#ADDR3 + 0x4]]):
# POSTCHECK-SAME: DW_OP_reg5 RDI, DW_OP_piece 0x4, DW_OP_lit3, DW_OP_stack_value, DW_OP_piece 0x4)
# POSTCHECK: version = 0x0004
# POSTCHECK: DW_TAG_formal_parameter
# POSTCHECK-NEXT: DW_AT_location [DW_FORM_sec_offset]
# POSTCHECK-NEXT: [0x[[#%.16x,ADDR4:]]
# POSTCHECK-SAME: 0x[[#ADDR4 + 0x8]]): DW_OP_reg5 RDI
# POSTCHECK-NEXT: [0x[[#%.16x,ADDR5:]]
# POSTCHECK-SAME: 0x[[#ADDR5 + 0x16]]): DW_OP_GNU_entry_value(DW_OP_reg5 RDI), DW_OP_stack_value)
# POSTCHECK: DW_TAG_formal_parameter
# POSTCHECK: DW_TAG_formal_parameter
# POSTCHECK-NEXT: DW_AT_location [DW_FORM_sec_offset]
# POSTCHECK-NEXT: [0x[[#%.16x,ADDR6:]]
# POSTCHECK-SAME: 0x[[#ADDR6 + 0x8]]): DW_OP_reg5 RDI
# POSTCHECK-NEXT: [0x[[#%.16x,ADDR7:]]
# POSTCHECK-SAME: 0x[[#ADDR7 + 0x16]]): DW_OP_GNU_entry_value(DW_OP_reg5 RDI), DW_OP_stack_value)