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sink uniquing of sections out of MCContext into the ELF and PECOFF TLOF implementations.

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MCContext no longer maintains a string -> section map.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78874 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2009-08-13 00:37:15 +00:00
parent f991ecf723
commit 38cff389af
6 changed files with 49 additions and 42 deletions
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lib/Target/TargetLoweringObjectFile.cpp
+32 -6
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@@ -280,12 +280,25 @@ TargetLoweringObjectFile::getSectionForConstant(SectionKind Kind) const {
//===----------------------------------------------------------------------===//
// ELF
//===----------------------------------------------------------------------===//
typedef StringMap<const MCSectionELF*> ELFUniqueMapTy;
TargetLoweringObjectFileELF::~TargetLoweringObjectFileELF() {
// If we have the section uniquing map, free it.
delete (ELFUniqueMapTy*)UniquingMap;
}
const MCSection *TargetLoweringObjectFileELF::
getELFSection(const char *Name, bool isDirective, SectionKind Kind) const {
if (MCSection *S = getContext().GetSection(Name))
return S;
return MCSectionELF::Create(Name, isDirective, Kind, getContext());
// Create the map if it doesn't already exist.
if (UniquingMap == 0)
UniquingMap = new ELFUniqueMapTy();
ELFUniqueMapTy &Map = *(ELFUniqueMapTy*)UniquingMap;
// Do the lookup, if we have a hit, return it.
const MCSectionELF *&Entry = Map[Name];
if (Entry) return Entry;
return Entry = MCSectionELF::Create(Name, isDirective, Kind, getContext());
}
void TargetLoweringObjectFileELF::Initialize(MCContext &Ctx,
@@ -805,12 +818,25 @@ shouldEmitUsedDirectiveFor(const GlobalValue *GV, Mangler *Mang) const {
// COFF
//===----------------------------------------------------------------------===//
typedef StringMap<const MCSectionCOFF*> COFFUniqueMapTy;
TargetLoweringObjectFileCOFF::~TargetLoweringObjectFileCOFF() {
delete (COFFUniqueMapTy*)UniquingMap;
}
const MCSection *TargetLoweringObjectFileCOFF::
getCOFFSection(const char *Name, bool isDirective, SectionKind Kind) const {
if (MCSection *S = getContext().GetSection(Name))
return S;
return MCSectionCOFF::Create(Name, isDirective, Kind, getContext());
// Create the map if it doesn't already exist.
if (UniquingMap == 0)
UniquingMap = new MachOUniqueMapTy();
COFFUniqueMapTy &Map = *(COFFUniqueMapTy*)UniquingMap;
// Do the lookup, if we have a hit, return it.
const MCSectionCOFF *&Entry = Map[Name];
if (Entry) return Entry;
return Entry = MCSectionCOFF::Create(Name, isDirective, Kind, getContext());
}
void TargetLoweringObjectFileCOFF::Initialize(MCContext &Ctx,