diff options
| author | Vincent Lejeune <[email protected]> | 2012-09-04 17:29:48 +0200 |
|---|---|---|
| committer | Vincent Lejeune <[email protected]> | 2012-09-04 17:54:01 +0200 |
| commit | a4325b32298cb99b1e99620a33ef0bee52298c3c (patch) | |
| tree | ff336f64099e76e6e67052c481737ed27af139b2 /src/gallium/drivers/radeon | |
| parent | d9e135e18cb438aad4b0bdf89a7273d705549150 (diff) | |
radeon/llvm: custom lowering for FP_TO_UINT when dst is i1 (bool)
v2:-wrap line at 80 characters
Reviewed-by: Tom Stellard <[email protected]>
Diffstat (limited to 'src/gallium/drivers/radeon')
| -rw-r--r-- | src/gallium/drivers/radeon/R600ISelLowering.cpp | 22 | ||||
| -rw-r--r-- | src/gallium/drivers/radeon/R600ISelLowering.h | 6 |
2 files changed, 26 insertions, 2 deletions
diff --git a/src/gallium/drivers/radeon/R600ISelLowering.cpp b/src/gallium/drivers/radeon/R600ISelLowering.cpp index 7ad017871cb..79cd6229972 100644 --- a/src/gallium/drivers/radeon/R600ISelLowering.cpp +++ b/src/gallium/drivers/radeon/R600ISelLowering.cpp @@ -48,6 +48,7 @@ R600TargetLowering::R600TargetLowering(TargetMachine &TM) : setOperationAction(ISD::SETCC, MVT::i32, Custom); setOperationAction(ISD::SETCC, MVT::f32, Custom); + setOperationAction(ISD::FP_TO_UINT, MVT::i1, Custom); setSchedulingPreference(Sched::VLIW); } @@ -330,6 +331,27 @@ SDValue R600TargetLowering::LowerOperation(SDValue Op, SelectionDAG &DAG) const return SDValue(); } +void R600TargetLowering::ReplaceNodeResults(SDNode *N, + SmallVectorImpl<SDValue> &Results, + SelectionDAG &DAG) const +{ + switch (N->getOpcode()) { + default: return; + case ISD::FP_TO_UINT: Results.push_back(LowerFPTOUINT(N->getOperand(0), DAG)); + } +} + +SDValue R600TargetLowering::LowerFPTOUINT(SDValue Op, SelectionDAG &DAG) const +{ + return DAG.getNode( + ISD::SETCC, + Op.getDebugLoc(), + MVT::i1, + Op, DAG.getConstantFP(0.0f, MVT::f32), + DAG.getCondCode(ISD::SETNE) + ); +} + SDValue R600TargetLowering::LowerBR_CC(SDValue Op, SelectionDAG &DAG) const { SDValue Chain = Op.getOperand(0); diff --git a/src/gallium/drivers/radeon/R600ISelLowering.h b/src/gallium/drivers/radeon/R600ISelLowering.h index 2eb7eddddd2..49ea272502e 100644 --- a/src/gallium/drivers/radeon/R600ISelLowering.h +++ b/src/gallium/drivers/radeon/R600ISelLowering.h @@ -27,7 +27,9 @@ public: virtual MachineBasicBlock * EmitInstrWithCustomInserter(MachineInstr *MI, MachineBasicBlock * BB) const; virtual SDValue LowerOperation(SDValue Op, SelectionDAG &DAG) const; - + void ReplaceNodeResults(SDNode * N, + SmallVectorImpl<SDValue> &Results, + SelectionDAG &DAG) const; private: const R600InstrInfo * TII; @@ -48,7 +50,7 @@ private: SDValue LowerSELECT_CC(SDValue Op, SelectionDAG &DAG) const; SDValue LowerSETCC(SDValue Op, SelectionDAG &DAG) const; - + SDValue LowerFPTOUINT(SDValue Op, SelectionDAG &DAG) const; }; } // End namespace llvm; |