Make FixedStackPseudoSourceValue a first-class PseudoSourceValue by

making it visible to clients and adding LLVM-style cast capability.
This will be used by AsmPrinter to determine when to emit spill comments
for an instruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87019 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 2 insertions, 23 deletions

diff --git a/lib/CodeGen/PseudoSourceValue.cpp b/lib/CodeGen/PseudoSourceValue.cpp
index 5507646878..e95f017fc3 100644
--- a/lib/CodeGen/PseudoSourceValue.cpp
+++ b/lib/CodeGen/PseudoSourceValue.cpp
@@ -43,35 +43,14 @@ static const char *const PSVNames[] = {
 // Eventually these should be uniqued on LLVMContext rather than in a managed
 // static.  For now, we can safely use the global context for the time being to
 // squeak by.
-PseudoSourceValue::PseudoSourceValue() :
+PseudoSourceValue::PseudoSourceValue(enum ValueTy Subclass) :
   Value(Type::getInt8PtrTy(getGlobalContext()),
-        PseudoSourceValueVal) {}
+        Subclass) {}
 
 void PseudoSourceValue::printCustom(raw_ostream &O) const {
   O << PSVNames[this - *PSVs];
 }
 
-namespace {
-  /// FixedStackPseudoSourceValue - A specialized PseudoSourceValue
-  /// for holding FixedStack values, which must include a frame
-  /// index.
-  class FixedStackPseudoSourceValue : public PseudoSourceValue {
-    const int FI;
-  public:
-    explicit FixedStackPseudoSourceValue(int fi) : FI(fi) {}
-
-    virtual bool isConstant(const MachineFrameInfo *MFI) const;
-
-    virtual bool isAliased(const MachineFrameInfo *MFI) const;
-
-    virtual bool mayAlias(const MachineFrameInfo *) const;
-
-    virtual void printCustom(raw_ostream &OS) const {
-      OS << "FixedStack" << FI;
-    }
-  };
-}
-
 static ManagedStatic<std::map<int, const PseudoSourceValue *> > FSValues;
 
 const PseudoSourceValue *PseudoSourceValue::getFixedStack(int FI) {