setOperationAction(ISD::FNEG, MVT::v2f32, Expand);
setOperationAction(ISD::FNEG, MVT::v4f32, Expand);
+ setOperationAction(ISD::UINT_TO_FP, MVT::i64, Custom);
+
setOperationAction(ISD::MUL, MVT::i64, Expand);
setOperationAction(ISD::UDIV, MVT::i32, Expand);
case ISD::INTRINSIC_WO_CHAIN: return LowerINTRINSIC_WO_CHAIN(Op, DAG);
case ISD::STORE: return LowerSTORE(Op, DAG);
case ISD::UDIVREM: return LowerUDIVREM(Op, DAG);
+ case ISD::UINT_TO_FP: return LowerUINT_TO_FP(Op, DAG);
}
return Op;
}
return DAG.getMergeValues(Ops, 2, DL);
}
+SDValue AMDGPUTargetLowering::LowerUINT_TO_FP(SDValue Op,
+ SelectionDAG &DAG) const {
+ SDValue S0 = Op.getOperand(0);
+ SDLoc DL(Op);
+ if (Op.getValueType() != MVT::f32 || S0.getValueType() != MVT::i64)
+ return SDValue();
+
+ // f32 uint_to_fp i64
+ SDValue Lo = DAG.getNode(ISD::EXTRACT_ELEMENT, DL, MVT::i32, S0,
+ DAG.getConstant(0, MVT::i32));
+ SDValue FloatLo = DAG.getNode(ISD::UINT_TO_FP, DL, MVT::f32, Lo);
+ SDValue Hi = DAG.getNode(ISD::EXTRACT_ELEMENT, DL, MVT::i32, S0,
+ DAG.getConstant(1, MVT::i32));
+ SDValue FloatHi = DAG.getNode(ISD::UINT_TO_FP, DL, MVT::f32, Hi);
+ FloatHi = DAG.getNode(ISD::FMUL, DL, MVT::f32, FloatHi,
+ DAG.getConstantFP(4294967296.0f, MVT::f32)); // 2^32
+ return DAG.getNode(ISD::FADD, DL, MVT::f32, FloatLo, FloatHi);
+
+}
//===----------------------------------------------------------------------===//
// Helper functions