[Xtensa] TableGen-erate SDNode descriptions

Part of llvm#119709.

Author: s-barannikov

llvm/lib/Target/Xtensa/CMakeLists.txt

@@ -10,6 +10,7 @@ tablegen(LLVM XtensaGenDisassemblerTables.inc -gen-disassembler)
 tablegen(LLVM XtensaGenInstrInfo.inc -gen-instr-info)
 tablegen(LLVM XtensaGenMCCodeEmitter.inc -gen-emitter)
 tablegen(LLVM XtensaGenRegisterInfo.inc -gen-register-info)
+tablegen(LLVM XtensaGenSDNodeInfo.inc -gen-sd-node-info)
 tablegen(LLVM XtensaGenSubtargetInfo.inc -gen-subtarget)
 
 add_public_tablegen_target(XtensaCommonTableGen)
@@ -22,6 +23,7 @@ add_llvm_target(XtensaCodeGen
   XtensaISelDAGToDAG.cpp
   XtensaISelLowering.cpp
   XtensaRegisterInfo.cpp
+  XtensaSelectionDAGInfo.cpp
   XtensaSubtarget.cpp
   XtensaTargetMachine.cpp
 

llvm/lib/Target/Xtensa/XtensaISelDAGToDAG.cpp

@@ -12,6 +12,7 @@
 
 #include "MCTargetDesc/XtensaMCTargetDesc.h"
 #include "Xtensa.h"
+#include "XtensaSelectionDAGInfo.h"
 #include "XtensaTargetMachine.h"
 #include "llvm/CodeGen/MachineFunction.h"
 #include "llvm/CodeGen/MachineRegisterInfo.h"

llvm/lib/Target/Xtensa/XtensaISelLowering.cpp

@@ -15,6 +15,7 @@
 #include "XtensaConstantPoolValue.h"
 #include "XtensaInstrInfo.h"
 #include "XtensaMachineFunctionInfo.h"
+#include "XtensaSelectionDAGInfo.h"
 #include "XtensaSubtarget.h"
 #include "XtensaTargetMachine.h"
 #include "llvm/CodeGen/CallingConvLower.h"
@@ -1510,58 +1511,6 @@ SDValue XtensaTargetLowering::LowerOperation(SDValue Op,
   }
 }
 
-const char *XtensaTargetLowering::getTargetNodeName(unsigned Opcode) const {
-  switch (Opcode) {
-  case XtensaISD::BR_JT:
-    return "XtensaISD::BR_JT";
-  case XtensaISD::CALL:
-    return "XtensaISD::CALL";
-  case XtensaISD::CALLW8:
-    return "XtensaISD::CALLW8";
-  case XtensaISD::EXTUI:
-    return "XtensaISD::EXTUI";
-  case XtensaISD::MOVSP:
-    return "XtensaISD::MOVSP";
-  case XtensaISD::PCREL_WRAPPER:
-    return "XtensaISD::PCREL_WRAPPER";
-  case XtensaISD::RET:
-    return "XtensaISD::RET";
-  case XtensaISD::RETW:
-    return "XtensaISD::RETW";
-  case XtensaISD::RUR:
-    return "XtensaISD::RUR";
-  case XtensaISD::SELECT_CC:
-    return "XtensaISD::SELECT_CC";
-  case XtensaISD::SELECT_CC_FP:
-    return "XtensaISD::SELECT_CC_FP";
-  case XtensaISD::SRCL:
-    return "XtensaISD::SRCL";
-  case XtensaISD::SRCR:
-    return "XtensaISD::SRCR";
-  case XtensaISD::CMPUO:
-    return "XtensaISD::CMPUO";
-  case XtensaISD::CMPUEQ:
-    return "XtensaISD::CMPUEQ";
-  case XtensaISD::CMPULE:
-    return "XtensaISD::CMPULE";
-  case XtensaISD::CMPULT:
-    return "XtensaISD::CMPULT";
-  case XtensaISD::CMPOEQ:
-    return "XtensaISD::CMPOEQ";
-  case XtensaISD::CMPOLE:
-    return "XtensaISD::CMPOLE";
-  case XtensaISD::CMPOLT:
-    return "XtensaISD::CMPOLT";
-  case XtensaISD::MADD:
-    return "XtensaISD::MADD";
-  case XtensaISD::MSUB:
-    return "XtensaISD::MSUB";
-  case XtensaISD::MOVS:
-    return "XtensaISD::MOVS";
-  }
-  return nullptr;
-}
-
 TargetLowering::AtomicExpansionKind
 XtensaTargetLowering::shouldExpandAtomicRMWInIR(AtomicRMWInst *AI) const {
   return AtomicExpansionKind::CmpXChg;

llvm/lib/Target/Xtensa/XtensaISelLowering.h

@@ -20,67 +20,6 @@
 
 namespace llvm {
 
-namespace XtensaISD {
-enum {
-  FIRST_NUMBER = ISD::BUILTIN_OP_END,
-  BR_JT,
-
-  // Calls a function.  Operand 0 is the chain operand and operand 1
-  // is the target address.  The arguments start at operand 2.
-  // There is an optional glue operand at the end.
-  CALL,
-  // Call with rotation window by 8 registers
-  CALLW8,
-
-  // Extract unsigned immediate. Operand 0 is value, operand 1
-  // is bit position of the field [0..31], operand 2 is bit size
-  // of the field [1..16]
-  EXTUI,
-
-  MOVSP,
-
-  // Wraps a TargetGlobalAddress that should be loaded using PC-relative
-  // accesses.  Operand 0 is the address.
-  PCREL_WRAPPER,
-  RET,
-  RETW,
-
-  RUR,
-
-  // Select with condition operator - This selects between a true value and
-  // a false value (ops #2 and #3) based on the boolean result of comparing
-  // the lhs and rhs (ops #0 and #1) of a conditional expression with the
-  // condition code in op #4
-  SELECT_CC,
-  // Select with condition operator - This selects between a true value and
-  // a false value (ops #2 and #3) based on the boolean result of comparing
-  // f32 operands lhs and rhs (ops #0 and #1) of a conditional expression
-  // with the condition code in op #4 and boolean branch kind in op #5
-  SELECT_CC_FP,
-
-  // SRCL(R) performs shift left(right) of the concatenation of 2 registers
-  // and returns high(low) 32-bit part of 64-bit result
-  SRCL,
-  // Shift Right Combined
-  SRCR,
-
-  // Floating point unordered compare conditions
-  CMPUEQ,
-  CMPULE,
-  CMPULT,
-  CMPUO,
-  // Floating point compare conditions
-  CMPOEQ,
-  CMPOLE,
-  CMPOLT,
-  // FP multipy-add/sub
-  MADD,
-  MSUB,
-  // FP move
-  MOVS,
-};
-}
-
 class XtensaSubtarget;
 
 class XtensaTargetLowering : public TargetLowering {
@@ -104,8 +43,6 @@ class XtensaTargetLowering : public TargetLowering {
 
   bool isOffsetFoldingLegal(const GlobalAddressSDNode *GA) const override;
 
-  const char *getTargetNodeName(unsigned Opcode) const override;
-
   bool isFPImmLegal(const APFloat &Imm, EVT VT,
                     bool ForCodeSize) const override;
 

llvm/lib/Target/Xtensa/XtensaSelectionDAGInfo.cpp

@@ -0,0 +1,19 @@
+//===- XtensaSelectionDAGInfo.cpp -----------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "XtensaSelectionDAGInfo.h"
+
+#define GET_SDNODE_DESC
+#include "XtensaGenSDNodeInfo.inc"
+
+using namespace llvm;
+
+XtensaSelectionDAGInfo::XtensaSelectionDAGInfo()
+    : SelectionDAGGenTargetInfo(XtensaGenSDNodeInfo) {}
+
+XtensaSelectionDAGInfo::~XtensaSelectionDAGInfo() = default;

llvm/lib/Target/Xtensa/XtensaSelectionDAGInfo.h

@@ -0,0 +1,28 @@
+//===- XtensaSelectionDAGInfo.h ---------------------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIB_TARGET_XTENSA_XTENSASELECTIONDAGINFO_H
+#define LLVM_LIB_TARGET_XTENSA_XTENSASELECTIONDAGINFO_H
+
+#include "llvm/CodeGen/SelectionDAGTargetInfo.h"
+
+#define GET_SDNODE_ENUM
+#include "XtensaGenSDNodeInfo.inc"
+
+namespace llvm {
+
+class XtensaSelectionDAGInfo : public SelectionDAGGenTargetInfo {
+public:
+  XtensaSelectionDAGInfo();
+
+  ~XtensaSelectionDAGInfo() override;
+};
+
+} // namespace llvm
+
+#endif // LLVM_LIB_TARGET_XTENSA_XTENSASELECTIONDAGINFO_H

llvm/lib/Target/Xtensa/XtensaSubtarget.cpp

@@ -11,6 +11,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "XtensaSubtarget.h"
+#include "XtensaSelectionDAGInfo.h"
 #include "llvm/IR/GlobalValue.h"
 #include "llvm/Support/Debug.h"
 
@@ -39,4 +40,12 @@ XtensaSubtarget::XtensaSubtarget(const Triple &TT, StringRef CPU, StringRef FS,
                                  const TargetMachine &TM)
     : XtensaGenSubtargetInfo(TT, CPU, /*TuneCPU=*/CPU, FS), TargetTriple(TT),
       InstrInfo(initializeSubtargetDependencies(CPU, FS)), TLInfo(TM, *this),
-      TSInfo(), FrameLowering(*this) {}
+      FrameLowering(*this) {
+  TSInfo = std::make_unique<SelectionDAGTargetInfo>();
+}
+
+XtensaSubtarget::~XtensaSubtarget() = default;
+
+const SelectionDAGTargetInfo *XtensaSubtarget::getSelectionDAGInfo() const {
+  return TSInfo.get();
+}

llvm/lib/Target/Xtensa/XtensaSubtarget.h

@@ -17,7 +17,6 @@
 #include "XtensaISelLowering.h"
 #include "XtensaInstrInfo.h"
 #include "XtensaRegisterInfo.h"
-#include "llvm/CodeGen/SelectionDAGTargetInfo.h"
 #include "llvm/CodeGen/TargetSubtargetInfo.h"
 #include "llvm/IR/DataLayout.h"
 #include "llvm/Target/TargetMachine.h"
@@ -38,7 +37,7 @@ class XtensaSubtarget : public XtensaGenSubtargetInfo {
   const Triple &TargetTriple;
   XtensaInstrInfo InstrInfo;
   XtensaTargetLowering TLInfo;
-  SelectionDAGTargetInfo TSInfo;
+  std::unique_ptr<const SelectionDAGTargetInfo> TSInfo;
   XtensaFrameLowering FrameLowering;
 
   XtensaSubtarget &initializeSubtargetDependencies(StringRef CPU, StringRef FS);
@@ -47,6 +46,8 @@ class XtensaSubtarget : public XtensaGenSubtargetInfo {
   XtensaSubtarget(const Triple &TT, StringRef CPU, StringRef FS,
                   const TargetMachine &TM);
 
+  ~XtensaSubtarget() override;
+
   const Triple &getTargetTriple() const { return TargetTriple; }
 
   const TargetFrameLowering *getFrameLowering() const override {
@@ -60,9 +61,8 @@ class XtensaSubtarget : public XtensaGenSubtargetInfo {
   const XtensaTargetLowering *getTargetLowering() const override {
     return &TLInfo;
   }
-  const SelectionDAGTargetInfo *getSelectionDAGInfo() const override {
-    return &TSInfo;
-  }
+
+  const SelectionDAGTargetInfo *getSelectionDAGInfo() const override;
 
   bool hasDensity() const { return HasDensity; }
   bool hasMAC16() const { return HasMAC16; }