1 files changed, 0 insertions, 148 deletions
diff --git a/contrib/llvm/lib/Target/AVR/AVRRelaxMemOperations.cpp b/contrib/llvm/lib/Target/AVR/AVRRelaxMemOperations.cpp
deleted file mode 100644
index 6be901743e82..000000000000
--- a/contrib/llvm/lib/Target/AVR/AVRRelaxMemOperations.cpp
+++ /dev/null
@@ -1,148 +0,0 @@
-//===-- AVRRelaxMemOperations.cpp - Relax out of range loads/stores -------===//
-//
-// 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
-//
-//===----------------------------------------------------------------------===//
-//
-// This file contains a pass which relaxes out of range memory operations into
-// equivalent operations which handle bigger addresses.
-//
-//===----------------------------------------------------------------------===//
-
-#include "AVR.h"
-#include "AVRInstrInfo.h"
-#include "AVRTargetMachine.h"
-#include "MCTargetDesc/AVRMCTargetDesc.h"
-
-#include "llvm/CodeGen/MachineFunctionPass.h"
-#include "llvm/CodeGen/MachineInstrBuilder.h"
-#include "llvm/CodeGen/MachineRegisterInfo.h"
-#include "llvm/CodeGen/TargetRegisterInfo.h"
-
-using namespace llvm;
-
-#define AVR_RELAX_MEM_OPS_NAME "AVR memory operation relaxation pass"
-
-namespace {
-
-class AVRRelaxMem : public MachineFunctionPass {
-public:
-  static char ID;
-
-  AVRRelaxMem() : MachineFunctionPass(ID) {
-    initializeAVRRelaxMemPass(*PassRegistry::getPassRegistry());
-  }
-
-  bool runOnMachineFunction(MachineFunction &MF) override;
-
-  StringRef getPassName() const override { return AVR_RELAX_MEM_OPS_NAME; }
-
-private:
-  typedef MachineBasicBlock Block;
-  typedef Block::iterator BlockIt;
-
-  const TargetInstrInfo *TII;
-
-  template <unsigned OP> bool relax(Block &MBB, BlockIt MBBI);
-
-  bool runOnBasicBlock(Block &MBB);
-  bool runOnInstruction(Block &MBB, BlockIt MBBI);
-
-  MachineInstrBuilder buildMI(Block &MBB, BlockIt MBBI, unsigned Opcode) {
-    return BuildMI(MBB, MBBI, MBBI->getDebugLoc(), TII->get(Opcode));
-  }
-};
-
-char AVRRelaxMem::ID = 0;
-
-bool AVRRelaxMem::runOnMachineFunction(MachineFunction &MF) {
-  bool Modified = false;
-
-  const AVRSubtarget &STI = MF.getSubtarget<AVRSubtarget>();
-  TII = STI.getInstrInfo();
-
-  for (Block &MBB : MF) {
-    bool BlockModified = runOnBasicBlock(MBB);
-    Modified |= BlockModified;
-  }
-
-  return Modified;
-}
-
-bool AVRRelaxMem::runOnBasicBlock(Block &MBB) {
-  bool Modified = false;
-
-  BlockIt MBBI = MBB.begin(), E = MBB.end();
-  while (MBBI != E) {
-    BlockIt NMBBI = std::next(MBBI);
-    Modified |= runOnInstruction(MBB, MBBI);
-    MBBI = NMBBI;
-  }
-
-  return Modified;
-}
-
-template <>
-bool AVRRelaxMem::relax<AVR::STDWPtrQRr>(Block &MBB, BlockIt MBBI) {
-  MachineInstr &MI = *MBBI;
-
-  MachineOperand &Ptr = MI.getOperand(0);
-  MachineOperand &Src = MI.getOperand(2);
-  int64_t Imm = MI.getOperand(1).getImm();
-
-  // We can definitely optimise this better.
-  if (Imm > 63) {
-    // Push the previous state of the pointer register.
-    // This instruction must preserve the value.
-    buildMI(MBB, MBBI, AVR::PUSHWRr)
-      .addReg(Ptr.getReg());
-
-    // Add the immediate to the pointer register.
-    buildMI(MBB, MBBI, AVR::SBCIWRdK)
-      .addReg(Ptr.getReg(), RegState::Define)
-      .addReg(Ptr.getReg())
-      .addImm(-Imm);
-
-    // Store the value in the source register to the address
-    // pointed to by the pointer register.
-    buildMI(MBB, MBBI, AVR::STWPtrRr)
-      .addReg(Ptr.getReg())
-      .addReg(Src.getReg(), getKillRegState(Src.isKill()));
-
-    // Pop the original state of the pointer register.
-    buildMI(MBB, MBBI, AVR::POPWRd)
-      .addReg(Ptr.getReg(), getKillRegState(Ptr.isKill()));
-
-    MI.removeFromParent();
-  }
-
-  return false;
-}
-
-bool AVRRelaxMem::runOnInstruction(Block &MBB, BlockIt MBBI) {
-  MachineInstr &MI = *MBBI;
-  int Opcode = MBBI->getOpcode();
-
-#define RELAX(Op)                \
-  case Op:                       \
-    return relax<Op>(MBB, MI)
-
-  switch (Opcode) {
-    RELAX(AVR::STDWPtrQRr);
-  }
-#undef RELAX
-  return false;
-}
-
-} // end of anonymous namespace
-
-INITIALIZE_PASS(AVRRelaxMem, "avr-relax-mem",
-                AVR_RELAX_MEM_OPS_NAME, false, false)
-
-namespace llvm {
-
-FunctionPass *createAVRRelaxMemPass() { return new AVRRelaxMem(); }
-
-} // end of namespace llvm