diff options
| -rw-r--r-- | lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index 9203c81..61bfd46 100644 --- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -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); |