Factor some code to handle "load (constantexpr cast foo)" just like

[oota-llvm.git] / lib / Transforms / TransformInternals.h

diff --git a/lib/Transforms/TransformInternals.h b/lib/Transforms/TransformInternals.h
index 867dd5d4abea7a293017d215690bc0c42f474cef..3b80146a2780c14b28215ca642bd3d8a04952ab6 100644 (file)
--- a/lib/Transforms/TransformInternals.h
+++ b/lib/Transforms/TransformInternals.h
@@ -1,4 +1,11 @@
-//===-- TransformInternals.h - Shared functions for Transforms ---*- C++ -*--=//
+//===-- TransformInternals.h - Shared functions for Transforms --*- C++ -*-===//
+// 
+//                     The LLVM Compiler Infrastructure
+//
+// This file was developed by the LLVM research group and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// 
+//===----------------------------------------------------------------------===//
 //
 //  This header file declares shared functions used by the different components
 //  of the Transforms library.
@@ -15,18 +22,10 @@
 #include <map>
 #include <set>
 
-// TargetData Hack: Eventually we will have annotations given to us by the
-// backend so that we know stuff about type size and alignments.  For now
-// though, just use this, because it happens to match the model that GCC uses.
-//
-// FIXME: This should use annotations
-//
-extern const TargetData TD;
+namespace llvm {
 
 static inline int64_t getConstantValue(const ConstantInt *CPI) {
-  if (const ConstantSInt *CSI = dyn_cast<ConstantSInt>(CPI))
-    return CSI->getValue();
-  return (int64_t)cast<ConstantUInt>(CPI)->getValue();
+  return (int64_t)cast<ConstantInt>(CPI)->getRawValue();
 }
 
 
@@ -38,7 +37,7 @@ static inline const CompositeType *getPointedToComposite(const Type *Ty) {
   return PT ? dyn_cast<CompositeType>(PT->getElementType()) : 0;
 }
 
-// ConvertableToGEP - This function returns true if the specified value V is
+// ConvertibleToGEP - This function returns true if the specified value V is
 // a valid index into a pointer of type Ty.  If it is valid, Idx is filled in
 // with the values that would be appropriate to make this a getelementptr
 // instruction.  The type returned is the root type that the GEP would point
@@ -47,8 +46,9 @@ static inline const CompositeType *getPointedToComposite(const Type *Ty) {
 // If BI is nonnull, cast instructions are inserted as appropriate for the
 // arguments of the getelementptr.
 //
-const Type *ConvertableToGEP(const Type *Ty, Value *V,
+const Type *ConvertibleToGEP(const Type *Ty, Value *V,
                              std::vector<Value*> &Indices,
+                             const TargetData &TD,
                              BasicBlock::iterator *BI = 0);
 
 
@@ -103,7 +103,7 @@ struct ValueMapCache {
   typedef std::map<const Value *, Value *> ExprMapTy;
 
   // Cast Map - Cast instructions can have their source and destination values
-  // changed independantly for each part.  Because of this, our old naive
+  // changed independently for each part.  Because of this, our old naive
   // implementation would create a TWO new cast instructions, which would cause
   // all kinds of problems.  Here we keep track of the newly allocated casts, so
   // that we only create one for a particular instruction.
@@ -112,14 +112,18 @@ struct ValueMapCache {
 };
 
 
-bool ExpressionConvertableToType(Value *V, const Type *Ty, ValueTypeCache &Map);
-Value *ConvertExpressionToType(Value *V, const Type *Ty, ValueMapCache &VMC);
+bool ExpressionConvertibleToType(Value *V, const Type *Ty, ValueTypeCache &Map,
+                                 const TargetData &TD);
+Value *ConvertExpressionToType(Value *V, const Type *Ty, ValueMapCache &VMC,
+                               const TargetData &TD);
 
-// ValueConvertableToType - Return true if it is possible
-bool ValueConvertableToType(Value *V, const Type *Ty,
-                            ValueTypeCache &ConvertedTypes);
+// ValueConvertibleToType - Return true if it is possible
+bool ValueConvertibleToType(Value *V, const Type *Ty,
+                            ValueTypeCache &ConvertedTypes,
+                            const TargetData &TD);
 
-void ConvertValueToNewType(Value *V, Value *NewVal, ValueMapCache &VMC);
+void ConvertValueToNewType(Value *V, Value *NewVal, ValueMapCache &VMC,
+                           const TargetData &TD);
 
 
 // getStructOffsetType - Return a vector of offsets that are to be used to index
@@ -135,6 +139,8 @@ void ConvertValueToNewType(Value *V, Value *NewVal, ValueMapCache &VMC);
 //
 const Type *getStructOffsetType(const Type *Ty, unsigned &Offset,
                                 std::vector<Value*> &Offsets,
-                                bool StopEarly = true);
+                                const TargetData &TD, bool StopEarly = true);
+
+} // End llvm namespace
 
 #endif