diff options
Diffstat (limited to 'src/gallium/drivers/radeon/SIISelLowering.cpp')
| -rw-r--r-- | src/gallium/drivers/radeon/SIISelLowering.cpp | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/src/gallium/drivers/radeon/SIISelLowering.cpp b/src/gallium/drivers/radeon/SIISelLowering.cpp index 9970251128a..8528f73e409 100644 --- a/src/gallium/drivers/radeon/SIISelLowering.cpp +++ b/src/gallium/drivers/radeon/SIISelLowering.cpp @@ -36,6 +36,7 @@ SITargetLowering::SITargetLowering(TargetMachine &TM) : setOperationAction(ISD::ADD, MVT::i64, Legal); setOperationAction(ISD::ADD, MVT::i32, Legal); + setOperationAction(ISD::BR_CC, MVT::i32, Custom); } MachineBasicBlock * SITargetLowering::EmitInstrWithCustomInserter( @@ -193,3 +194,39 @@ void SITargetLowering::lowerUSE_SGPR(MachineInstr *MI, addLiveIn(MI, MF, MRI, TII, newReg); } +//===----------------------------------------------------------------------===// +// Custom DAG Lowering Operations +//===----------------------------------------------------------------------===// + +SDValue SITargetLowering::LowerOperation(SDValue Op, SelectionDAG &DAG) const +{ + switch (Op.getOpcode()) { + default: return AMDGPUTargetLowering::LowerOperation(Op, DAG); + case ISD::BR_CC: return LowerBR_CC(Op, DAG); + } +} + +SDValue SITargetLowering::LowerBR_CC(SDValue Op, SelectionDAG &DAG) const +{ + SDValue Chain = Op.getOperand(0); + SDValue CC = Op.getOperand(1); + SDValue LHS = Op.getOperand(2); + SDValue RHS = Op.getOperand(3); + SDValue JumpT = Op.getOperand(4); + SDValue CmpValue; + SDValue Result; + CmpValue = DAG.getNode( + ISD::SETCC, + Op.getDebugLoc(), + MVT::i1, + LHS, RHS, + CC); + + Result = DAG.getNode( + AMDILISD::BRANCH_COND, + CmpValue.getDebugLoc(), + MVT::Other, Chain, + JumpT, CmpValue); + return Result; +} + |