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Disable two transformations that contribute to bus errors on SparcV8. 

llvm-svn: 25339
This commit is contained in:
Chris Lattner 2006-01-15 18:58:59 +00:00
parent 2494ce49f0
commit fcdb420baf
1 changed files with 6 additions and 2 deletions
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8
llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
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@ -1808,7 +1808,9 @@ SDOperand DAGCombiner::visitBIT_CONVERT(SDNode *N) {
return DAG.getNode(ISD::BIT_CONVERT, VT, N0.getOperand(0));
// fold (conv (load x)) -> (load (conv*)x)
if (N0.getOpcode() == ISD::LOAD && N0.hasOneUse()) {
// FIXME: These xforms need to know that the resultant load doesn't need a
// higher alignment than the original!
if (0 && N0.getOpcode() == ISD::LOAD && N0.hasOneUse()) {
SDOperand Load = DAG.getLoad(VT, N0.getOperand(0), N0.getOperand(1),
N0.getOperand(2));
WorkList.push_back(N);
@ -2129,7 +2131,9 @@ SDOperand DAGCombiner::visitSTORE(SDNode *N) {
}
// If this is a store of a bit convert, store the input value.
if (Value.getOpcode() == ISD::BIT_CONVERT)
// FIXME: This needs to know that the resultant store does not need a
// higher alignment than the original.
if (0 && Value.getOpcode() == ISD::BIT_CONVERT)
return DAG.getNode(ISD::STORE, MVT::Other, Chain, Value.getOperand(0),
Ptr, SrcValue);