diff options
Diffstat (limited to 'lib/CodeGen/SelectionDAG/SelectionDAG.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/SelectionDAG.cpp | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp index eb3729c813..8a2962f0c3 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp +++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp @@ -1075,7 +1075,7 @@ SDOperand SelectionDAG::FoldSetCC(MVT::ValueType VT, SDOperand N1, } } } - if (ConstantFPSDNode *N1C = dyn_cast<ConstantFPSDNode>(N1.Val)) + if (ConstantFPSDNode *N1C = dyn_cast<ConstantFPSDNode>(N1.Val)) { if (ConstantFPSDNode *N2C = dyn_cast<ConstantFPSDNode>(N2.Val)) { // No compile time operations on this type yet. if (N1C->getValueType(0) == MVT::ppcf128) @@ -1127,7 +1127,8 @@ SDOperand SelectionDAG::FoldSetCC(MVT::ValueType VT, SDOperand N1, // Ensure that the constant occurs on the RHS. return getSetCC(VT, N2, N1, ISD::getSetCCSwappedOperands(Cond)); } - + } + // Could not fold it. return SDOperand(); } @@ -2334,20 +2335,22 @@ SDOperand SelectionDAG::getNode(unsigned Opcode, MVT::ValueType VT, break; } case ISD::SELECT: - if (N1C) - if (N1C->getValue()) + if (N1C) { + if (N1C->getValue()) return N2; // select true, X, Y -> X else return N3; // select false, X, Y -> Y + } if (N2 == N3) return N2; // select C, X, X -> X break; case ISD::BRCOND: - if (N2C) + if (N2C) { if (N2C->getValue()) // Unconditional branch return getNode(ISD::BR, MVT::Other, N1, N3); else return N1; // Never-taken branch + } break; case ISD::VECTOR_SHUFFLE: assert(VT == N1.getValueType() && VT == N2.getValueType() && |