diff options
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 19 |
1 files changed, 3 insertions, 16 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index 620feb9aa3d..afe1fe57cd0 100644 --- a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -306,19 +306,6 @@ static bool isOneUseSetCC(SDOperand N) { return false; } -// FIXME: This should probably go in the ISD class rather than being duplicated -// in several files. -static bool isCommutativeBinOp(unsigned Opcode) { - switch (Opcode) { - case ISD::ADD: - case ISD::MUL: - case ISD::AND: - case ISD::OR: - case ISD::XOR: return true; - default: return false; // FIXME: Need commutative info for user ops! - } -} - SDOperand DAGCombiner::ReassociateOps(unsigned Opc, SDOperand N0, SDOperand N1){ MVT::ValueType VT = N0.getValueType(); // reassoc. (op (op x, c1), y) -> (op (op x, y), c1) iff x+c1 has one use @@ -3456,7 +3443,7 @@ SDOperand DAGCombiner::SimplifySetCC(MVT::ValueType VT, SDOperand N0, return DAG.getSetCC(VT, N0.getOperand(1), N1.getOperand(1), Cond); if (N0.getOperand(1) == N1.getOperand(1)) return DAG.getSetCC(VT, N0.getOperand(0), N1.getOperand(0), Cond); - if (isCommutativeBinOp(N0.getOpcode())) { + if (DAG.isCommutativeBinOp(N0.getOpcode())) { // If X op Y == Y op X, try other combinations. if (N0.getOperand(0) == N1.getOperand(1)) return DAG.getSetCC(VT, N0.getOperand(1), N1.getOperand(0), Cond); @@ -3499,7 +3486,7 @@ SDOperand DAGCombiner::SimplifySetCC(MVT::ValueType VT, SDOperand N0, return DAG.getSetCC(VT, N0.getOperand(1), DAG.getConstant(0, N0.getValueType()), Cond); if (N0.getOperand(1) == N1) { - if (isCommutativeBinOp(N0.getOpcode())) + if (DAG.isCommutativeBinOp(N0.getOpcode())) return DAG.getSetCC(VT, N0.getOperand(0), DAG.getConstant(0, N0.getValueType()), Cond); else { @@ -3521,7 +3508,7 @@ SDOperand DAGCombiner::SimplifySetCC(MVT::ValueType VT, SDOperand N0, return DAG.getSetCC(VT, N1.getOperand(1), DAG.getConstant(0, N1.getValueType()), Cond); } else if (N1.getOperand(1) == N0) { - if (isCommutativeBinOp(N1.getOpcode())) { + if (DAG.isCommutativeBinOp(N1.getOpcode())) { return DAG.getSetCC(VT, N1.getOperand(0), DAG.getConstant(0, N1.getValueType()), Cond); } else { |
