fix: add legalizer to subtarget

valida-xyz · Apr 4, 2023 · 4e20325 · 4e20325
1 parent 186301f
commit 4e20325
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Showing 4 changed files with 32 additions and 3 deletions.
diff --git a/llvm/lib/Target/Delendum/DelendumSubtarget.cpp b/llvm/lib/Target/Delendum/DelendumSubtarget.cpp
@@ -11,14 +11,16 @@
 ///
 //===----------------------------------------------------------------------===//
 
-#include "DelendumSubtarget.h"
 
 #include "Delendum.h"
 #include "DelendumMachineFunction.h"
 #include "DelendumRegisterInfo.h"
 #include "DelendumTargetMachine.h"
+
+#include "DelendumSubtarget.h"
 #include "GISel/DelendumCallLowering.h"
 #include "GISel/DelendumRegisterBankInfo.h"
+#include "GISel/DelendumLegalizerInfo.h"
 
 #include "llvm/CodeGen/MachineJumpTableInfo.h"
 #include "llvm/IR/Attributes.h"
@@ -63,6 +65,7 @@ DelendumSubtarget::DelendumSubtarget(const Triple &TT, StringRef CPU, StringRef
       InstrInfo(initializeSubtargetDependencies(CPU, FS)),
       TLInfo(TM, *this), FrameLowering(*this) {
   CallLoweringInfo.reset(new DelendumCallLowering(*getTargetLowering()));
+  Legalizer.reset(new DelendumLegalizerInfo(*this));
   auto *RBI = new DelendumRegisterBankInfo(*getRegisterInfo());
   RegBankInfo.reset(RBI);
   InstSelector.reset(createDelendumInstructionSelector(TM, *this, *RBI));
@@ -72,6 +75,10 @@ const CallLowering *DelendumSubtarget::getCallLowering() const {
   return CallLoweringInfo.get();
 }
 
+const LegalizerInfo *DelendumSubtarget::getLegalizerInfo() const {
+  return Legalizer.get();
+}
+
 const RegisterBankInfo *DelendumSubtarget::getRegBankInfo() const {
   return RegBankInfo.get();
 }

diff --git a/llvm/lib/Target/Delendum/DelendumSubtarget.h b/llvm/lib/Target/Delendum/DelendumSubtarget.h
@@ -19,6 +19,7 @@
 #include "DelendumFrameLowering.h"
 
 #include "llvm/CodeGen/GlobalISel/CallLowering.h"
+#include "llvm/CodeGen/GlobalISel/LegalizerInfo.h"
 #include "llvm/CodeGen/GlobalISel/InstructionSelector.h"
 #include "llvm/CodeGen/RegisterBankInfo.h"
 #include "llvm/CodeGen/SelectionDAGTargetInfo.h"
@@ -69,13 +70,15 @@ class DelendumSubtarget : public DelendumGenSubtargetInfo {
 protected:
   // GlobalISel related APIs.
   std::unique_ptr<CallLowering> CallLoweringInfo;
-  std::unique_ptr<InstructionSelector> InstSelector;
+  std::unique_ptr<LegalizerInfo> Legalizer;
   std::unique_ptr<RegisterBankInfo> RegBankInfo;
+  std::unique_ptr<InstructionSelector> InstSelector;
 
 public:
   const CallLowering *getCallLowering() const override;
-  InstructionSelector *getInstructionSelector() const override;
+  const LegalizerInfo *getLegalizerInfo() const override;
   const RegisterBankInfo *getRegBankInfo() const override;
+  InstructionSelector *getInstructionSelector() const override;
 
 };
 } // End llvm namespace

diff --git a/llvm/lib/Target/Delendum/GISel/DelendumLegalizerInfo.cpp b/llvm/lib/Target/Delendum/GISel/DelendumLegalizerInfo.cpp
@@ -38,3 +38,20 @@ DelendumLegalizerInfo::DelendumLegalizerInfo(const DelendumSubtarget &ST) {
 
   getLegacyLegalizerInfo().computeTables();
 }
+
+bool DelendumLegalizerInfo::legalizeCustom(LegalizerHelper &Helper,
+                                           MachineInstr &MI) const {
+  // TODO
+  //using namespace TargetOpcode;
+
+  //switch (MI.getOpcode()) {
+  //case G_LOAD:
+  //case G_STORE: {
+  //  MI.eraseFromParent();
+  //  break;
+  //}
+  //default:
+  //  return false;
+  //}
+  //return true;
+}
diff --git a/llvm/lib/Target/Delendum/GISel/DelendumLegalizerInfo.h b/llvm/lib/Target/Delendum/GISel/DelendumLegalizerInfo.h
@@ -24,6 +24,8 @@ class DelendumSubtarget;
 struct DelendumLegalizerInfo : public LegalizerInfo {
 public:
   DelendumLegalizerInfo(const DelendumSubtarget &ST);
+
+  bool legalizeCustom(LegalizerHelper &Helper, MachineInstr &MI) const override;
 };
 } // end namespace llvm
 #endif // LLVM_LIB_TARGET_DELENDUM_GLSEL_DELENDUMLEGALIZERINFO_H