//
//===----------------------------------------------------------------------===//
+#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/PseudoSourceValue.h"
#include "llvm/DerivedTypes.h"
+#include "llvm/Support/Compiler.h"
+#include "llvm/Support/ManagedStatic.h"
+#include "llvm/Support/raw_ostream.h"
+#include <map>
+using namespace llvm;
-namespace llvm {
- const PseudoSourceValue PseudoSourceValue::FPRel("FPRel");
- const PseudoSourceValue PseudoSourceValue::SPRel("SPRel");
- const PseudoSourceValue PseudoSourceValue::GPRel("GPRel");
- const PseudoSourceValue PseudoSourceValue::TPRel("TPRel");
- const PseudoSourceValue PseudoSourceValue::CPRel("CPRel");
- const PseudoSourceValue PseudoSourceValue::JTRel("JTRel");
-
- PseudoSourceValue::PseudoSourceValue(const char *_name) :
- Value(PointerType::getUnqual(Type::Int8Ty), PseudoSourceValueVal),
- name(_name) {
- }
-
- void PseudoSourceValue::print(std::ostream &OS) const {
- OS << name;
- }
+static ManagedStatic<PseudoSourceValue[4]> PSVs;
+
+const PseudoSourceValue *PseudoSourceValue::getStack()
+{ return &(*PSVs)[0]; }
+const PseudoSourceValue *PseudoSourceValue::getGOT()
+{ return &(*PSVs)[1]; }
+const PseudoSourceValue *PseudoSourceValue::getJumpTable()
+{ return &(*PSVs)[2]; }
+const PseudoSourceValue *PseudoSourceValue::getConstantPool()
+{ return &(*PSVs)[3]; }
+
+static const char *const PSVNames[] = {
+ "Stack",
+ "GOT",
+ "JumpTable",
+ "ConstantPool"
+};
+
+PseudoSourceValue::PseudoSourceValue() :
+ Value(PointerType::getUnqual(Type::Int8Ty), PseudoSourceValueVal) {}
+
+void PseudoSourceValue::dump() const {
+ print(errs()); errs() << '\n'; errs().flush();
+}
+
+void PseudoSourceValue::print(raw_ostream &OS) const {
+ OS << PSVNames[this - *PSVs];
+}
+
+namespace {
+ /// FixedStackPseudoSourceValue - A specialized PseudoSourceValue
+ /// for holding FixedStack values, which must include a frame
+ /// index.
+ class VISIBILITY_HIDDEN FixedStackPseudoSourceValue
+ : public PseudoSourceValue {
+ const int FI;
+ public:
+ explicit FixedStackPseudoSourceValue(int fi) : FI(fi) {}
+
+ virtual bool isConstant(const MachineFrameInfo *MFI) const;
+
+ virtual void print(raw_ostream &OS) const {
+ OS << "FixedStack" << FI;
+ }
+ };
+}
+
+static ManagedStatic<std::map<int, const PseudoSourceValue *> > FSValues;
+
+const PseudoSourceValue *PseudoSourceValue::getFixedStack(int FI) {
+ const PseudoSourceValue *&V = (*FSValues)[FI];
+ if (!V)
+ V = new FixedStackPseudoSourceValue(FI);
+ return V;
+}
+
+bool PseudoSourceValue::isConstant(const MachineFrameInfo *) const {
+ if (this == getStack())
+ return false;
+ if (this == getGOT() ||
+ this == getConstantPool() ||
+ this == getJumpTable())
+ return true;
+ assert(0 && "Unknown PseudoSourceValue!");
+ return false;
+}
+
+bool FixedStackPseudoSourceValue::isConstant(const MachineFrameInfo *MFI) const{
+ return MFI && MFI->isImmutableObjectIndex(FI);
}