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Remove DwarfUnit::LabelRange since it's unused.

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Seems at some point the intent was to emit fission ranges_base as unique
per CU but the code today emits ranges_base as the start of the ranges
section for all CUs being compiled and all the ranges_base relative
addresses are relative to that. So removing this dead code and leaving
the status quo until there's a reason to change it (perhaps something's
faster if it has distinct ranges for each CU).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207464 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Blaikie 2014-04-28 23:36:52 +00:00
parent af09fb613f
commit d13e09a560
3 changed files with 0 additions and 13 deletions
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3
lib/CodeGen/AsmPrinter/DwarfDebug.cpp
View File

@ -2355,9 +2355,6 @@ void DwarfDebug::emitDebugRanges() {
for (const auto &I : CUMap) {
DwarfCompileUnit *TheCU = I.second;
// Emit a symbol so we can find the beginning of our ranges.
Asm->OutStreamer.EmitLabel(TheCU->getLabelRange());
// Iterate over the misc ranges for the compile units in the module.
for (const RangeSpanList &List : TheCU->getRangeLists()) {
// Emit our symbol so we can find the beginning of the range.

1
lib/CodeGen/AsmPrinter/DwarfUnit.cpp
View File

@ -2092,5 +2092,4 @@ void DwarfTypeUnit::initSection(const MCSection *Section) {
Asm->GetTempSymbol(Section->getLabelBeginName(), getUniqueID());
this->LabelEnd =
Asm->GetTempSymbol(Section->getLabelEndName(), getUniqueID());
this->LabelRange = Asm->GetTempSymbol("gnu_ranges", getUniqueID());
}

9
lib/CodeGen/AsmPrinter/DwarfUnit.h
View File

@ -138,9 +138,6 @@ protected:
/// The end of the unit within its section.
MCSymbol *LabelEnd;
/// The label for the start of the range sets for the elements of this unit.
MCSymbol *LabelRange;
/// Skeleton unit associated with this unit.
DwarfUnit *Skeleton;
@ -167,7 +164,6 @@ public:
Asm->GetTempSymbol(Section->getLabelBeginName(), getUniqueID());
this->LabelEnd =
Asm->GetTempSymbol(Section->getLabelEndName(), getUniqueID());
this->LabelRange = Asm->GetTempSymbol("gnu_ranges", getUniqueID());
}
const MCSection *getSection() const {
@ -206,11 +202,6 @@ public:
return LabelEnd;
}
MCSymbol *getLabelRange() const {
assert(Section);
return LabelRange;
}
// Accessors.
unsigned getUniqueID() const { return UniqueID; }
uint16_t getLanguage() const { return CUNode.getLanguage(); }