-#include "llvm/ConstPoolVals.h"
-
-// 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.
-//
-const TargetData TD("LevelRaise: Should be GCC though!");
-
-// losslessCastableTypes - Return true if the types are bitwise equivalent.
-// This predicate returns true if it is possible to cast from one type to
-// another without gaining or losing precision, or altering the bits in any way.
-//
-bool losslessCastableTypes(const Type *T1, const Type *T2) {
- if (!T1->isPrimitiveType() && !T1->isPointerType()) return false;
- if (!T2->isPrimitiveType() && !T2->isPointerType()) return false;
-
- if (T1->getPrimitiveID() == T2->getPrimitiveID())
- return true; // Handles identity cast, and cast of differing pointer types
-
- // Now we know that they are two differing primitive or pointer types
- switch (T1->getPrimitiveID()) {
- case Type::UByteTyID: return T2 == Type::SByteTy;
- case Type::SByteTyID: return T2 == Type::UByteTy;
- case Type::UShortTyID: return T2 == Type::ShortTy;
- case Type::ShortTyID: return T2 == Type::UShortTy;
- case Type::UIntTyID: return T2 == Type::IntTy;
- case Type::IntTyID: return T2 == Type::UIntTy;
- case Type::ULongTyID:
- case Type::LongTyID:
- case Type::PointerTyID:
- return T2 == Type::ULongTy || T2 == Type::LongTy ||
- T2->getPrimitiveID() == Type::PointerTyID;
- default:
- return false; // Other types have no identity values
- }
-}
-
-
-// ReplaceInstWithValue - Replace all uses of an instruction (specified by BI)
-// with a value, then remove and delete the original instruction.
-//
-void ReplaceInstWithValue(BasicBlock::InstListType &BIL,
- BasicBlock::iterator &BI, Value *V) {
- Instruction *I = *BI;
- // Replaces all of the uses of the instruction with uses of the value
- I->replaceAllUsesWith(V);
-
- // Remove the unneccesary instruction now...
- BIL.remove(BI);
-
- // Make sure to propogate a name if there is one already...
- if (I->hasName() && !V->hasName())
- V->setName(I->getName(), BIL.getParent()->getSymbolTable());
-
- // Remove the dead instruction now...
- delete I;
-}
-
-
-// ReplaceInstWithInst - Replace the instruction specified by BI with the
-// instruction specified by I. The original instruction is deleted and BI is
-// updated to point to the new instruction.
-//
-void ReplaceInstWithInst(BasicBlock::InstListType &BIL,
- BasicBlock::iterator &BI, Instruction *I) {
- assert(I->getParent() == 0 &&
- "ReplaceInstWithInst: Instruction already inserted into basic block!");