switch MCSectionCOFF from a syntactic to semantic representation,
patch by Peter Housel!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103267 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MCContext.cpp b/lib/MC/MCContext.cpp
index dc757bb..93388c0 100644
--- a/lib/MC/MCContext.cpp
+++ b/lib/MC/MCContext.cpp
@@ -11,6 +11,7 @@
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCSectionMachO.h"
#include "llvm/MC/MCSectionELF.h"
+#include "llvm/MC/MCSectionCOFF.h"
#include "llvm/MC/MCSymbol.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/Twine.h"
@@ -18,11 +19,13 @@
typedef StringMap<const MCSectionMachO*> MachOUniqueMapTy;
typedef StringMap<const MCSectionELF*> ELFUniqueMapTy;
+typedef StringMap<const MCSectionCOFF*> COFFUniqueMapTy;
MCContext::MCContext(const MCAsmInfo &mai) : MAI(mai), NextUniqueID(0) {
MachOUniquingMap = 0;
ELFUniquingMap = 0;
+ COFFUniquingMap = 0;
}
MCContext::~MCContext() {
@@ -32,6 +35,7 @@
// If we have the MachO uniquing map, free it.
delete (MachOUniqueMapTy*)MachOUniquingMap;
delete (ELFUniqueMapTy*)ELFUniquingMap;
+ delete (COFFUniqueMapTy*)COFFUniquingMap;
}
//===----------------------------------------------------------------------===//
@@ -122,4 +126,19 @@
return Result;
}
-
+const MCSection *MCContext::
+getCOFFSection(StringRef Section, unsigned Flags, SectionKind Kind) {
+ if (COFFUniquingMap == 0)
+ COFFUniquingMap = new COFFUniqueMapTy();
+ COFFUniqueMapTy &Map = *(COFFUniqueMapTy*)COFFUniquingMap;
+
+ // Do the lookup, if we have a hit, return it.
+ StringMapEntry<const MCSectionCOFF*> &Entry = Map.GetOrCreateValue(Section);
+ if (Entry.getValue()) return Entry.getValue();
+
+ MCSectionCOFF *Result = new (*this) MCSectionCOFF(Entry.getKey(), Flags,
+ Kind);
+
+ Entry.setValue(Result);
+ return Result;
+}