Turn MCSectionData into a field of MCSection.

[oota-llvm.git] / lib / Target / R600 / R600ISelLowering.cpp

diff --git a/lib/Target/R600/R600ISelLowering.cpp b/lib/Target/R600/R600ISelLowering.cpp
index e2604b2ed22e7a0a614560b766a24cbea8c765c8..0125828e6edd82c6c1d5003129872163d7994a38 100644 (file)
--- a/lib/Target/R600/R600ISelLowering.cpp
+++ b/lib/Target/R600/R600ISelLowering.cpp
@@ -91,6 +91,14 @@ R600TargetLowering::R600TargetLowering(TargetMachine &TM,
   setOperationAction(ISD::SELECT, MVT::v2i32, Expand);
   setOperationAction(ISD::SELECT, MVT::v4i32, Expand);
 
+  // ADD, SUB overflow.
+  // TODO: turn these into Legal?
+  if (Subtarget->hasCARRY())
+    setOperationAction(ISD::UADDO, MVT::i32, Custom);
+
+  if (Subtarget->hasBORROW())
+    setOperationAction(ISD::USUBO, MVT::i32, Custom);
+
   // Expand sign extension of vectors
   if (!Subtarget->hasBFE())
     setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i1, Expand);
@@ -163,8 +171,6 @@ R600TargetLowering::R600TargetLowering(TargetMachine &TM,
   setTargetDAGCombine(ISD::SELECT_CC);
   setTargetDAGCombine(ISD::INSERT_VECTOR_ELT);
 
-  setOperationAction(ISD::SUB, MVT::i64, Expand);
-
   // These should be replaced by UDVIREM, but it does not happen automatically
   // during Type Legalization
   setOperationAction(ISD::UDIV, MVT::i64, Custom);
@@ -585,6 +591,8 @@ SDValue R600TargetLowering::LowerOperation(SDValue Op, SelectionDAG &DAG) const
   case ISD::SHL_PARTS: return LowerSHLParts(Op, DAG);
   case ISD::SRA_PARTS:
   case ISD::SRL_PARTS: return LowerSRXParts(Op, DAG);
+  case ISD::UADDO: return LowerUADDSUBO(Op, DAG, ISD::ADD, AMDGPUISD::CARRY);
+  case ISD::USUBO: return LowerUADDSUBO(Op, DAG, ISD::SUB, AMDGPUISD::BORROW);
   case ISD::FCOS:
   case ISD::FSIN: return LowerTrig(Op, DAG);
   case ISD::SELECT_CC: return LowerSELECT_CC(Op, DAG);
@@ -1078,6 +1086,24 @@ SDValue R600TargetLowering::LowerSRXParts(SDValue Op, SelectionDAG &DAG) const {
   return DAG.getNode(ISD::MERGE_VALUES, DL, DAG.getVTList(VT,VT), Lo, Hi);
 }
 
+SDValue R600TargetLowering::LowerUADDSUBO(SDValue Op, SelectionDAG &DAG,
+                                          unsigned mainop, unsigned ovf) const {
+  SDLoc DL(Op);
+  EVT VT = Op.getValueType();
+
+  SDValue Lo = Op.getOperand(0);
+  SDValue Hi = Op.getOperand(1);
+
+  SDValue OVF = DAG.getNode(ovf, DL, VT, Lo, Hi);
+  // Extend sign.
+  OVF = DAG.getNode(ISD::SIGN_EXTEND_INREG, DL, VT, OVF,
+                    DAG.getValueType(MVT::i1));
+
+  SDValue Res = DAG.getNode(mainop, DL, VT, Lo, Hi);
+
+  return DAG.getNode(ISD::MERGE_VALUES, DL, DAG.getVTList(VT, VT), Res, OVF);
+}
+
 SDValue R600TargetLowering::LowerFPTOUINT(SDValue Op, SelectionDAG &DAG) const {
   SDLoc DL(Op);
   return DAG.getNode(