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Add a isBigEndian method to complement isLittleEndian.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46954 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan Sands
2008-02-11 10:37:04 +00:00
parent 431bfcbe37
commit 0753fc1850
4 changed files with 12 additions and 11 deletions
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lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+4 -4
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@@ -1739,7 +1739,7 @@ SDOperand DAGCombiner::visitAND(SDNode *N) {
unsigned PtrOff = LVTStoreBytes - EVTStoreBytes;
unsigned Alignment = LN0->getAlignment();
SDOperand NewPtr = LN0->getBasePtr();
if (!TLI.isLittleEndian()) {
if (TLI.isBigEndian()) {
NewPtr = DAG.getNode(ISD::ADD, PtrType, NewPtr,
DAG.getConstant(PtrOff, PtrType));
Alignment = MinAlign(Alignment, PtrOff);
@@ -3086,7 +3086,7 @@ SDOperand DAGCombiner::ReduceLoadWidth(SDNode *N) {
MVT::ValueType PtrType = N0.getOperand(1).getValueType();
// For big endian targets, we need to adjust the offset to the pointer to
// load the correct bytes.
if (!TLI.isLittleEndian()) {
if (TLI.isBigEndian()) {
unsigned LVTStoreBits = MVT::getStoreSizeInBits(N0.getValueType());
unsigned EVTStoreBits = MVT::getStoreSizeInBits(EVT);
ShAmt = LVTStoreBits - EVTStoreBits - ShAmt;
@@ -3460,7 +3460,7 @@ ConstantFoldBIT_CONVERTofBUILD_VECTOR(SDNode *BV, MVT::ValueType DstEltVT) {
}
// For big endian targets, swap the order of the pieces of each element.
if (!TLI.isLittleEndian())
if (TLI.isBigEndian())
std::reverse(Ops.end()-NumOutputsPerInput, Ops.end());
}
MVT::ValueType VT = MVT::getVectorType(DstEltVT, Ops.size());
@@ -4386,7 +4386,7 @@ SDOperand DAGCombiner::visitSTORE(SDNode *N) {
uint64_t Val = CFP->getValueAPF().convertToAPInt().getZExtValue();
SDOperand Lo = DAG.getConstant(Val & 0xFFFFFFFF, MVT::i32);
SDOperand Hi = DAG.getConstant(Val >> 32, MVT::i32);
if (!TLI.isLittleEndian()) std::swap(Lo, Hi);
if (TLI.isBigEndian()) std::swap(Lo, Hi);
int SVOffset = ST->getSrcValueOffset();
unsigned Alignment = ST->getAlignment();