1 //===- XtensaISelDAGToDAG.cpp - A dag to dag inst selector for Xtensa -----===//
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //===----------------------------------------------------------------------===//
11 //===----------------------------------------------------------------------===//
25 #define DEBUG_TYPE "xtensa-isel"
36   // For load/store instructions generate (base+offset) pair from
38   bool selectMemRegAddr(SDValue Addr, SDValue &Base, SDValue &Offset,  in selectMemRegAddr()  argument
44       Base = CurDAG->getTargetFrameIndex(FIN->getIndex(), ValTy);  in selectMemRegAddr()
45       Offset = CurDAG->getTargetConstant(0, SDLoc(Addr), ValTy);  in selectMemRegAddr()
51       DiagnosticInfoUnsupported Diag(CurDAG->getMachineFunction().getFunction(),  in selectMemRegAddr()
54       CurDAG->getContext()->diagnose(Diag);  in selectMemRegAddr()
63     if (CurDAG->isBaseWithConstantOffset(Addr)) {  in selectMemRegAddr()
65       int64_t OffsetVal = CN->getSExtValue();  in selectMemRegAddr()
73           Base = CurDAG->getTargetFrameIndex(FIN->getIndex(), ValTy);  in selectMemRegAddr()
75           Base = Addr.getOperand(0);  in selectMemRegAddr()
78             CurDAG->getTargetConstant(CN->getZExtValue(), SDLoc(Addr), ValTy);  in selectMemRegAddr()
84     Base = Addr;  in selectMemRegAddr()
85     Offset = CurDAG->getTargetConstant(0, SDLoc(Addr), Addr.getValueType());  in selectMemRegAddr()
89   bool selectMemRegAddrISH1(SDValue Addr, SDValue &Base, SDValue &Offset) {  in selectMemRegAddrISH1()  argument
90     return selectMemRegAddr(Addr, Base, Offset, 1);  in selectMemRegAddrISH1()
93   bool selectMemRegAddrISH2(SDValue Addr, SDValue &Base, SDValue &Offset) {  in selectMemRegAddrISH2()  argument
94     return selectMemRegAddr(Addr, Base, Offset, 2);  in selectMemRegAddrISH2()
97   bool selectMemRegAddrISH4(SDValue Addr, SDValue &Base, SDValue &Offset) {  in selectMemRegAddrISH4()  argument
98     return selectMemRegAddr(Addr, Base, Offset, 4);  in selectMemRegAddrISH4()
107   static char ID;  member in __anon9f18fca30111::XtensaDAGToDAGISelLegacy
111             ID, std::make_unique<XtensaDAGToDAGISel>(TM, OptLevel)) {}  in XtensaDAGToDAGISelLegacy()
114     return "Xtensa DAG->DAG Pattern Instruction Selection";  in getPassName()
119 char XtensaDAGToDAGISelLegacy::ID = 0;  member in XtensaDAGToDAGISelLegacy
130   if (Node->isMachineOpcode()) {  in Select()
131     Node->setNodeId(-1);  in Select()