Move all sources from the llvm project into contrib/llvm-project.

This uses the new layout of the upstream repository, which was recently
migrated to GitHub, and converted into a "monorepo".  That is, most of
the earlier separate sub-projects with their own branches and tags were
consolidated into one top-level directory, and are now branched and
tagged together.

Updating the vendor area to match this layout is next.

1 files changed, 0 insertions, 69 deletions

diff --git a/contrib/llvm/lib/Target/ARM/ARMMacroFusion.cpp b/contrib/llvm/lib/Target/ARM/ARMMacroFusion.cpp
deleted file mode 100644
index 38bf28ba8219..000000000000
--- a/contrib/llvm/lib/Target/ARM/ARMMacroFusion.cpp
+++ /dev/null
@@ -1,69 +0,0 @@
-//===- ARMMacroFusion.cpp - ARM Macro Fusion ----------------------===//
-//
-// 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 file contains the ARM implementation of the DAG scheduling
-///  mutation to pair instructions back to back.
-//
-//===----------------------------------------------------------------------===//
-
-#include "ARMMacroFusion.h"
-#include "ARMSubtarget.h"
-#include "llvm/CodeGen/MacroFusion.h"
-#include "llvm/CodeGen/TargetInstrInfo.h"
-
-namespace llvm {
-
-// Fuse AES crypto encoding or decoding.
-static bool isAESPair(const MachineInstr *FirstMI,
-                      const MachineInstr &SecondMI) {
-  // Assume the 1st instr to be a wildcard if it is unspecified.
-  switch(SecondMI.getOpcode()) {
-  // AES encode.
-  case ARM::AESMC :
-    return FirstMI == nullptr || FirstMI->getOpcode() == ARM::AESE;
-  // AES decode.
-  case ARM::AESIMC:
-    return FirstMI == nullptr || FirstMI->getOpcode() == ARM::AESD;
-  }
-
-  return false;
-}
-
-// Fuse literal generation.
-static bool isLiteralsPair(const MachineInstr *FirstMI,
-                           const MachineInstr &SecondMI) {
-  // Assume the 1st instr to be a wildcard if it is unspecified.
-  if ((FirstMI == nullptr || FirstMI->getOpcode() == ARM::MOVi16) &&
-      SecondMI.getOpcode() == ARM::MOVTi16)
-    return true;
-
-  return false;
-}
-
-/// Check if the instr pair, FirstMI and SecondMI, should be fused
-/// together. Given SecondMI, when FirstMI is unspecified, then check if
-/// SecondMI may be part of a fused pair at all.
-static bool shouldScheduleAdjacent(const TargetInstrInfo &TII,
-                                   const TargetSubtargetInfo &TSI,
-                                   const MachineInstr *FirstMI,
-                                   const MachineInstr &SecondMI) {
-  const ARMSubtarget &ST = static_cast<const ARMSubtarget&>(TSI);
-
-  if (ST.hasFuseAES() && isAESPair(FirstMI, SecondMI))
-    return true;
-  if (ST.hasFuseLiterals() && isLiteralsPair(FirstMI, SecondMI))
-    return true;
-
-  return false;
-}
-
-std::unique_ptr<ScheduleDAGMutation> createARMMacroFusionDAGMutation () {
-  return createMacroFusionDAGMutation(shouldScheduleAdjacent);
-}
-
-} // end namespace llvm