#ifndef LLVM_MC_MCSECTION_H
#define LLVM_MC_MCSECTION_H
+#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringRef.h"
+#include "llvm/ADT/ilist.h"
+#include "llvm/ADT/ilist_node.h"
+#include "llvm/MC/MCFragment.h"
#include "llvm/MC/SectionKind.h"
#include "llvm/Support/Compiler.h"
namespace llvm {
class MCAsmInfo;
+class MCAssembler;
class MCContext;
class MCExpr;
+class MCFragment;
+class MCSection;
class MCSymbol;
class raw_ostream;
+template<>
+struct ilist_node_traits<MCFragment> {
+ MCFragment *createNode(const MCFragment &V);
+ static void deleteNode(MCFragment *V);
+
+ void addNodeToList(MCFragment *) {}
+ void removeNodeFromList(MCFragment *) {}
+ void transferNodesFromList(ilist_node_traits & /*SrcTraits*/,
+ ilist_iterator<MCFragment> /*first*/,
+ ilist_iterator<MCFragment> /*last*/) {}
+};
+
/// Instances of this class represent a uniqued identifier for a section in the
/// current translation unit. The MCContext class uniques and creates these.
class MCSection {
BundleLockedAlignToEnd
};
+ typedef iplist<MCFragment> FragmentListType;
+
+ typedef FragmentListType::const_iterator const_iterator;
+ typedef FragmentListType::iterator iterator;
+
+ typedef FragmentListType::const_reverse_iterator const_reverse_iterator;
+ typedef FragmentListType::reverse_iterator reverse_iterator;
+
private:
MCSection(const MCSection &) = delete;
void operator=(const MCSection &) = delete;
/// \brief We've seen a bundle_lock directive but not its first instruction
/// yet.
- bool BundleGroupBeforeFirstInst = false;
+ unsigned BundleGroupBeforeFirstInst : 1;
/// Whether this section has had instructions emitted into it.
unsigned HasInstructions : 1;
+ unsigned IsRegistered : 1;
+
+ MCDummyFragment DummyFragment;
+
+ FragmentListType Fragments;
+
+ /// Mapping from subsection number to insertion point for subsection numbers
+ /// below that number.
+ SmallVector<std::pair<unsigned, MCFragment *>, 1> SubsectionFragmentMap;
+
protected:
- MCSection(SectionVariant V, SectionKind K, MCSymbol *Begin)
- : Begin(Begin), HasInstructions(false), Variant(V), Kind(K) {}
+ MCSection(SectionVariant V, SectionKind K, MCSymbol *Begin);
SectionVariant Variant;
SectionKind Kind;
+ ~MCSection();
public:
- virtual ~MCSection();
-
SectionKind getKind() const { return Kind; }
SectionVariant getVariant() const { return Variant; }
bool hasInstructions() const { return HasInstructions; }
void setHasInstructions(bool Value) { HasInstructions = Value; }
+ bool isRegistered() const { return IsRegistered; }
+ void setIsRegistered(bool Value) { IsRegistered = Value; }
+
+ MCSection::FragmentListType &getFragmentList() { return Fragments; }
+ const MCSection::FragmentListType &getFragmentList() const {
+ return const_cast<MCSection *>(this)->getFragmentList();
+ }
+
+ /// Support for MCFragment::getNextNode().
+ static FragmentListType MCSection::*getSublistAccess(MCFragment *) {
+ return &MCSection::Fragments;
+ }
+
+ const MCDummyFragment &getDummyFragment() const { return DummyFragment; }
+ MCDummyFragment &getDummyFragment() { return DummyFragment; }
+
+ MCSection::iterator begin();
+ MCSection::const_iterator begin() const {
+ return const_cast<MCSection *>(this)->begin();
+ }
+
+ MCSection::iterator end();
+ MCSection::const_iterator end() const {
+ return const_cast<MCSection *>(this)->end();
+ }
+
+ MCSection::reverse_iterator rbegin();
+ MCSection::const_reverse_iterator rbegin() const {
+ return const_cast<MCSection *>(this)->rbegin();
+ }
+
+ MCSection::reverse_iterator rend();
+ MCSection::const_reverse_iterator rend() const {
+ return const_cast<MCSection *>(this)->rend();
+ }
+
+ MCSection::iterator getSubsectionInsertionPoint(unsigned Subsection);
+
+ void dump();
+
virtual void PrintSwitchToSection(const MCAsmInfo &MAI, raw_ostream &OS,
const MCExpr *Subsection) const = 0;