Imported Upstream version 5.18.0.182

Former-commit-id: f9d55cf82631bfd710c387739687e5845296aea1

external/llvm/lib/CodeGen/ResetMachineFunctionPass.cpp

@@ -1,74 +0,0 @@
-//===-- ResetMachineFunctionPass.cpp - Reset Machine Function ----*- C++ -*-==//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-/// \file
-/// This file implements a pass that will conditionally reset a machine
-/// function as if it was just created. This is used to provide a fallback
-/// mechanism when GlobalISel fails, thus the condition for the reset to
-/// happen is that the MachineFunction has the FailedISel property.
-//===----------------------------------------------------------------------===//
-
-#include "llvm/ADT/Statistic.h"
-#include "llvm/CodeGen/MachineFunction.h"
-#include "llvm/CodeGen/MachineFunctionPass.h"
-#include "llvm/CodeGen/Passes.h"
-#include "llvm/IR/DiagnosticInfo.h"
-#include "llvm/Support/Debug.h"
-using namespace llvm;
-
-#define DEBUG_TYPE "reset-machine-function"
-
-STATISTIC(NumFunctionsReset, "Number of functions reset");
-
-namespace {
-  class ResetMachineFunction : public MachineFunctionPass {
-    /// Tells whether or not this pass should emit a fallback
-    /// diagnostic when it resets a function.
-    bool EmitFallbackDiag;
-    /// Whether we should abort immediately instead of resetting the function.
-    bool AbortOnFailedISel;
-
-  public:
-    static char ID; // Pass identification, replacement for typeid
-    ResetMachineFunction(bool EmitFallbackDiag = false,
-                         bool AbortOnFailedISel = false)
-        : MachineFunctionPass(ID), EmitFallbackDiag(EmitFallbackDiag),
-          AbortOnFailedISel(AbortOnFailedISel) {}
-
-    StringRef getPassName() const override { return "ResetMachineFunction"; }
-
-    bool runOnMachineFunction(MachineFunction &MF) override {
-      if (MF.getProperties().hasProperty(
-              MachineFunctionProperties::Property::FailedISel)) {
-        if (AbortOnFailedISel)
-          report_fatal_error("Instruction selection failed");
-        DEBUG(dbgs() << "Reseting: " << MF.getName() << '\n');
-        ++NumFunctionsReset;
-        MF.reset();
-        if (EmitFallbackDiag) {
-          const Function &F = MF.getFunction();
-          DiagnosticInfoISelFallback DiagFallback(F);
-          F.getContext().diagnose(DiagFallback);
-        }
-        return true;
-      }
-      return false;
-    }
-
-  };
-} // end anonymous namespace
-
-char ResetMachineFunction::ID = 0;
-INITIALIZE_PASS(ResetMachineFunction, DEBUG_TYPE,
-                "reset machine function if ISel failed", false, false)
-
-MachineFunctionPass *
-llvm::createResetMachineFunctionPass(bool EmitFallbackDiag = false,
-                                     bool AbortOnFailedISel = false) {
-  return new ResetMachineFunction(EmitFallbackDiag, AbortOnFailedISel);
-}