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- Change getelementptr instruction to use long indexes instead of uint

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indexes for sequential types.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3681 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2002-09-11 01:21:29 +00:00
parent 562219de55
commit 106ff4551c
9 changed files with 57 additions and 62 deletions
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14
lib/Transforms/TransformInternals.cpp
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@@ -66,7 +66,7 @@ const Type *getStructOffsetType(const Type *Ty, unsigned &Offset,
NextType = ATy->getElementType();
unsigned ChildSize = TD.getTypeSize(NextType);
Indices.push_back(ConstantUInt::get(Type::UIntTy, Offset/ChildSize));
Indices.push_back(ConstantSInt::get(Type::LongTy, Offset/ChildSize));
ThisOffset = (Offset/ChildSize)*ChildSize;
} else {
Offset = 0; // Return the offset that we were able to acheive
@@ -141,13 +141,13 @@ const Type *ConvertableToGEP(const Type *Ty, Value *OffsetVal,
if (BI) { // Generate code?
BasicBlock *BB = (*BI)->getParent();
if (Expr.Var->getType() != Type::UIntTy)
Expr.Var = new CastInst(Expr.Var, Type::UIntTy,
if (Expr.Var->getType() != Type::LongTy)
Expr.Var = new CastInst(Expr.Var, Type::LongTy,
Expr.Var->getName()+"-idxcast", *BI);
if (ScaleAmt && ScaleAmt != 1) {
// If we have to scale up our index, do so now
Value *ScaleAmtVal = ConstantUInt::get(Type::UIntTy,
Value *ScaleAmtVal = ConstantSInt::get(Type::LongTy,
(unsigned)ScaleAmt);
Expr.Var = BinaryOperator::create(Instruction::Mul, Expr.Var,
ScaleAmtVal,
@@ -155,7 +155,7 @@ const Type *ConvertableToGEP(const Type *Ty, Value *OffsetVal,
}
if (Index) { // Add an offset to the index
Value *IndexAmt = ConstantUInt::get(Type::UIntTy, (unsigned)Index);
Value *IndexAmt = ConstantSInt::get(Type::LongTy, (unsigned)Index);
Expr.Var = BinaryOperator::create(Instruction::Add, Expr.Var,
IndexAmt,
Expr.Var->getName()+"-offset",
@@ -168,14 +168,14 @@ const Type *ConvertableToGEP(const Type *Ty, Value *OffsetVal,
} else if (Offset >= (int)ElSize || -Offset >= (int)ElSize) {
// Calculate the index that we are entering into the array cell with
unsigned Index = Offset/ElSize;
Indices.push_back(ConstantUInt::get(Type::UIntTy, Index));
Indices.push_back(ConstantSInt::get(Type::LongTy, Index));
Offset -= (int)(Index*ElSize); // Consume part of the offset
} else if (isa<ArrayType>(CompTy) || Indices.empty()) {
// Must be indexing a small amount into the first cell of the array
// Just index into element zero of the array here.
//
Indices.push_back(ConstantUInt::get(Type::UIntTy, 0));
Indices.push_back(ConstantSInt::get(Type::LongTy, 0));
} else {
return 0; // Hrm. wierd, can't handle this case. Bail
}