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Remove DwarfUnit::LabelEnd in favor of computing the length of the section directly

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This was a compile-unit specific label (unused in type units) and seems
unnecessary anyway when we can more easily directly compute the size of
the compile unit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221067 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Blaikie 2014-11-01 23:07:14 +00:00
parent 33e07581b2
commit 8ff48760a3
7 changed files with 8 additions and 15 deletions
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4
lib/CodeGen/AsmPrinter/DwarfCompileUnit.h
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@ -173,6 +173,10 @@ public:
this->SectionSym = SectionSym;
}
unsigned getLength() {
return sizeof(uint32_t) + // Length field
getHeaderSize() + UnitDie.getSize();
}
};
} // end llvm namespace

2
lib/CodeGen/AsmPrinter/DwarfDebug.cpp
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@ -1598,7 +1598,7 @@ void DwarfDebug::emitDebugPubSection(
Asm->EmitSectionOffset(TheU->getLabelBegin(), TheU->getSectionSym());
Asm->OutStreamer.AddComment("Compilation Unit Length");
Asm->EmitLabelDifference(TheU->getLabelEnd(), TheU->getLabelBegin(), 4);
Asm->EmitInt32(TheU->getLength());
// Emit the pubnames for this compilation unit.
for (const auto &GI : Globals) {

1
lib/CodeGen/AsmPrinter/DwarfFile.cpp
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@ -65,7 +65,6 @@ void DwarfFile::emitUnits(const MCSymbol *ASectionSym) {
TheU->emitHeader(ASectionSym);
DD.emitDIE(Die);
Asm->OutStreamer.EmitLabel(TheU->getLabelEnd());
}
}

2
lib/CodeGen/AsmPrinter/DwarfUnit.cpp
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@ -1750,8 +1750,6 @@ void DwarfUnit::initSection(const MCSection *Section) {
this->Section = Section;
this->LabelBegin =
Asm->GetTempSymbol(Section->getLabelBeginName(), getUniqueID());
this->LabelEnd =
Asm->GetTempSymbol(Section->getLabelEndName(), getUniqueID());
}
void DwarfTypeUnit::emitHeader(const MCSymbol *ASectionSym) const {

8
lib/CodeGen/AsmPrinter/DwarfUnit.h
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@ -132,9 +132,6 @@ protected:
/// The start of the unit within its section.
MCSymbol *LabelBegin;
/// The end of the unit within its section.
MCSymbol *LabelEnd;
DwarfUnit(unsigned UID, dwarf::Tag, DICompileUnit CU, AsmPrinter *A,
DwarfDebug *DW, DwarfFile *DWU);
@ -152,11 +149,6 @@ public:
return LabelBegin;
}
MCSymbol *getLabelEnd() const {
assert(Section);
return LabelEnd;
}
// Accessors.
unsigned getUniqueID() const { return UniqueID; }
uint16_t getLanguage() const { return CUNode.getLanguage(); }

4
test/DebugInfo/X86/ref_addr_relocation.ll
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@ -23,7 +23,7 @@
; CHECK: DW_TAG_variable
; CHECK: .long [[TYPE:.*]] # DW_AT_type
; CHECK: DW_TAG_structure_type
; CHECK: debug_info_end0
; CHECK: debug_info_begin1
; CHECK: DW_TAG_compile_unit
; CHECK-NOT: DW_TAG_structure_type
; This variable's type is in the 1st CU.
@ -31,7 +31,7 @@
; Make sure this is relocatable.
; CHECK: .quad .Lsection_info+[[TYPE]] # DW_AT_type
; CHECK-NOT: DW_TAG_structure_type
; CHECK: debug_info_end1
; CHECK: .section
; CHECK-DWARF: DW_TAG_compile_unit
; CHECK-DWARF: 0x[[ADDR:.*]]: DW_TAG_structure_type

2
test/DebugInfo/dwarf-public-names.ll
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@ -37,7 +37,7 @@
; Skip the output to the header of the pubnames section.
; CHECK: debug_pubnames
; CHECK: version = 0x0002
; CHECK: version = 0x0002 {{.*}} unit_size = 0x00000128
; Check for each name in the output.
; CHECK-DAG: "ns"