X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FTarget%2FTargetData.cpp;h=20e7522e5036f8fef6c6798ae06108d82d6e7a99;hb=d3e0faca06397b652640de09d65b9c6cbd41da56;hp=8712fc9f5987744405855bccf7922bf85a76c9e8;hpb=0c0edf8afc35a42b15a24ebb5fa5f3fc674290ae;p=oota-llvm.git

diff --git a/lib/Target/TargetData.cpp b/lib/Target/TargetData.cpp
index 8712fc9f598..20e7522e503 100644
--- a/lib/Target/TargetData.cpp
+++ b/lib/Target/TargetData.cpp
@@ -14,6 +14,13 @@
 #include "llvm/DerivedTypes.h"
 #include "llvm/Constants.h"
 
+// Handle the Pass registration stuff neccesary to use TargetData's.
+namespace {
+  // Register the default SparcV9 implementation...
+  RegisterPass<TargetData> X("targetdata", "Target Data Layout");
+}
+
+
 static inline void getTypeInfo(const Type *Ty, const TargetData *TD,
 			       uint64_t &Size, unsigned char &Alignment);
 
@@ -74,14 +81,17 @@ Annotation *TargetData::TypeAnFactory(AnnotationID AID, const Annotable *T,
 //===----------------------------------------------------------------------===//
 
 TargetData::TargetData(const std::string &TargetName,
-             unsigned char IntRegSize, unsigned char PtrSize,
-	     unsigned char PtrAl, unsigned char DoubleAl,
-	     unsigned char FloatAl, unsigned char LongAl, 
-	     unsigned char IntAl, unsigned char ShortAl,
-	     unsigned char ByteAl)
+                       bool isLittleEndian, unsigned char SubWordSize,
+                       unsigned char IntRegSize, unsigned char PtrSize,
+                       unsigned char PtrAl, unsigned char DoubleAl,
+                       unsigned char FloatAl, unsigned char LongAl, 
+                       unsigned char IntAl, unsigned char ShortAl,
+                       unsigned char ByteAl)
   : AID(AnnotationManager::getID("TargetData::" + TargetName)) {
   AnnotationManager::registerAnnotationFactory(AID, TypeAnFactory, this);
 
+  LittleEndian     = isLittleEndian;
+  SubWordDataSize  = SubWordSize;
   IntegerRegSize   = IntRegSize;
   PointerSize      = PtrSize;
   PointerAlignment = PtrAl;
@@ -153,20 +163,21 @@ unsigned char TargetData::getTypeAlignment(const Type *Ty) const {
 
 uint64_t TargetData::getIndexedOffset(const Type *ptrTy,
 				      const std::vector<Value*> &Idx) const {
-  const PointerType *PtrTy = cast<const PointerType>(ptrTy);
+  const Type *Ty = ptrTy;
+  assert(isa<PointerType>(Ty) && "Illegal argument for getIndexedOffset()");
   uint64_t Result = 0;
 
-  // Get the type pointed to...
-  const Type *Ty = PtrTy->getElementType();
+  for (unsigned CurIDX = 0; CurIDX != Idx.size(); ++CurIDX) {
+    if (Idx[CurIDX]->getType() == Type::LongTy) {
+      // Update Ty to refer to current element
+      Ty = cast<SequentialType>(Ty)->getElementType();
 
-  for (unsigned CurIDX = 0; CurIDX < Idx.size(); ++CurIDX) {
-    if (Idx[CurIDX]->getType() == Type::UIntTy) {
       // Get the array index and the size of each array element.
-      // Both must be known constants, or this will fail.
-      unsigned arrayIdx = cast<ConstantUInt>(Idx[CurIDX])->getValue();
-      uint64_t elementSize = this->getTypeSize(Ty);
-      Result += arrayIdx * elementSize;
-      
+      // Both must be known constants, or the index shd be 0; else this fails.
+      int64_t arrayIdx = cast<ConstantSInt>(Idx[CurIDX])->getValue();
+      Result += arrayIdx == 0? 0
+                : (uint64_t) (arrayIdx * (int64_t) getTypeSize(Ty)); 
+
     } else if (const StructType *STy = dyn_cast<const StructType>(Ty)) {
       assert(Idx[CurIDX]->getType() == Type::UByteTy && "Illegal struct idx");
       unsigned FieldNo = cast<ConstantUInt>(Idx[CurIDX])->getValue();
@@ -177,7 +188,7 @@ uint64_t TargetData::getIndexedOffset(const Type *ptrTy,
       // Add in the offset, as calculated by the structure layout info...
       assert(FieldNo < Layout->MemberOffsets.size() &&"FieldNo out of range!");
       Result += Layout->MemberOffsets[FieldNo];
-      
+
       // Update Ty to refer to current element
       Ty = STy->getElementTypes()[FieldNo];