1 files changed, 0 insertions, 96 deletions
diff --git a/contrib/llvm/lib/CodeGen/LazyMachineBlockFrequencyInfo.cpp b/contrib/llvm/lib/CodeGen/LazyMachineBlockFrequencyInfo.cpp
deleted file mode 100644
index 200ac0ba15bf..000000000000
--- a/contrib/llvm/lib/CodeGen/LazyMachineBlockFrequencyInfo.cpp
+++ /dev/null
@@ -1,96 +0,0 @@
-///===- LazyMachineBlockFrequencyInfo.cpp - Lazy Machine Block Frequency --===//
-///
-/// 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
-///
-///===---------------------------------------------------------------------===//
-/// \file
-/// This is an alternative analysis pass to MachineBlockFrequencyInfo.  The
-/// difference is that with this pass the block frequencies are not computed
-/// when the analysis pass is executed but rather when the BFI result is
-/// explicitly requested by the analysis client.
-///
-///===---------------------------------------------------------------------===//
-
-#include "llvm/CodeGen/LazyMachineBlockFrequencyInfo.h"
-
-using namespace llvm;
-
-#define DEBUG_TYPE "lazy-machine-block-freq"
-
-INITIALIZE_PASS_BEGIN(LazyMachineBlockFrequencyInfoPass, DEBUG_TYPE,
-                      "Lazy Machine Block Frequency Analysis", true, true)
-INITIALIZE_PASS_DEPENDENCY(MachineBranchProbabilityInfo)
-INITIALIZE_PASS_DEPENDENCY(MachineLoopInfo)
-INITIALIZE_PASS_END(LazyMachineBlockFrequencyInfoPass, DEBUG_TYPE,
-                    "Lazy Machine Block Frequency Analysis", true, true)
-
-char LazyMachineBlockFrequencyInfoPass::ID = 0;
-
-LazyMachineBlockFrequencyInfoPass::LazyMachineBlockFrequencyInfoPass()
-    : MachineFunctionPass(ID) {
-  initializeLazyMachineBlockFrequencyInfoPassPass(
-      *PassRegistry::getPassRegistry());
-}
-
-void LazyMachineBlockFrequencyInfoPass::print(raw_ostream &OS,
-                                              const Module *M) const {
-  getBFI().print(OS, M);
-}
-
-void LazyMachineBlockFrequencyInfoPass::getAnalysisUsage(
-    AnalysisUsage &AU) const {
-  AU.addRequired<MachineBranchProbabilityInfo>();
-  AU.setPreservesAll();
-  MachineFunctionPass::getAnalysisUsage(AU);
-}
-
-void LazyMachineBlockFrequencyInfoPass::releaseMemory() {
-  OwnedMBFI.reset();
-  OwnedMLI.reset();
-  OwnedMDT.reset();
-}
-
-MachineBlockFrequencyInfo &
-LazyMachineBlockFrequencyInfoPass::calculateIfNotAvailable() const {
-  auto *MBFI = getAnalysisIfAvailable<MachineBlockFrequencyInfo>();
-  if (MBFI) {
-    LLVM_DEBUG(dbgs() << "MachineBlockFrequencyInfo is available\n");
-    return *MBFI;
-  }
-
-  auto &MBPI = getAnalysis<MachineBranchProbabilityInfo>();
-  auto *MLI = getAnalysisIfAvailable<MachineLoopInfo>();
-  auto *MDT = getAnalysisIfAvailable<MachineDominatorTree>();
-  LLVM_DEBUG(dbgs() << "Building MachineBlockFrequencyInfo on the fly\n");
-  LLVM_DEBUG(if (MLI) dbgs() << "LoopInfo is available\n");
-
-  if (!MLI) {
-    LLVM_DEBUG(dbgs() << "Building LoopInfo on the fly\n");
-    // First create a dominator tree.
-    LLVM_DEBUG(if (MDT) dbgs() << "DominatorTree is available\n");
-
-    if (!MDT) {
-      LLVM_DEBUG(dbgs() << "Building DominatorTree on the fly\n");
-      OwnedMDT = make_unique<MachineDominatorTree>();
-      OwnedMDT->getBase().recalculate(*MF);
-      MDT = OwnedMDT.get();
-    }
-
-    // Generate LoopInfo from it.
-    OwnedMLI = make_unique<MachineLoopInfo>();
-    OwnedMLI->getBase().analyze(MDT->getBase());
-    MLI = OwnedMLI.get();
-  }
-
-  OwnedMBFI = make_unique<MachineBlockFrequencyInfo>();
-  OwnedMBFI->calculate(*MF, MBPI, *MLI);
-  return *OwnedMBFI.get();
-}
-
-bool LazyMachineBlockFrequencyInfoPass::runOnMachineFunction(
-    MachineFunction &F) {
-  MF = &F;
-  return false;
-}