Remove llvm/MC/MCAsmLayout.h and the unused parameter in MCAssembler::layout

This restores 63ec52f867 and
46f7929879, NFC changes that were
unnecessarily reverted.

This completes the work that merges MCAsmLayout into MCAssembler.

Pull Request: https://github.com/llvm/llvm-project/pull/97449

bolt/lib/Core/BinaryContext.cpp

@@ -20,7 +20,6 @@
 #include "llvm/DebugInfo/DWARF/DWARFCompileUnit.h"
 #include "llvm/DebugInfo/DWARF/DWARFFormValue.h"
 #include "llvm/DebugInfo/DWARF/DWARFUnit.h"
-#include "llvm/MC/MCAsmLayout.h"
 #include "llvm/MC/MCAssembler.h"
 #include "llvm/MC/MCContext.h"
 #include "llvm/MC/MCDisassembler/MCDisassembler.h"
@@ -2416,8 +2415,7 @@ BinaryContext::calculateEmittedSize(BinaryFunction &BF, bool FixBranches) {
 
   MCAssembler &Assembler =
       static_cast<MCObjectStreamer *>(Streamer.get())->getAssembler();
-  MCAsmLayout Layout(Assembler);
-  Assembler.layout(Layout);
+  Assembler.layout();
 
   // Obtain fragment sizes.
   std::vector<uint64_t> FragmentSizes;

clang/docs/tools/clang-formatted-files.txt

@@ -5357,7 +5357,6 @@ llvm/include/llvm/MC/MCAsmInfoELF.h
 llvm/include/llvm/MC/MCAsmInfoGOFF.h
 llvm/include/llvm/MC/MCAsmInfoWasm.h
 llvm/include/llvm/MC/MCAsmInfoXCOFF.h
-llvm/include/llvm/MC/MCAsmLayout.h
 llvm/include/llvm/MC/MCCodeView.h
 llvm/include/llvm/MC/MCContext.h
 llvm/include/llvm/MC/MCFixedLenDisassembler.h

llvm/include/llvm/MC/MCAsmLayout.h

@@ -1,22 +0,0 @@
-//===- MCAsmLayout.h - Assembly Layout Object -------------------*- C++ -*-===//
-//
-// 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
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_MC_MCASMLAYOUT_H
-#define LLVM_MC_MCASMLAYOUT_H
-
-namespace llvm {
-class MCAssembler;
-
-class MCAsmLayout {
-public:
-  MCAsmLayout(MCAssembler &) {}
-};
-
-} // end namespace llvm
-
-#endif

llvm/include/llvm/MC/MCAssembler.h

@@ -46,7 +46,6 @@ class MCRelaxableFragment;
 class MCSymbolRefExpr;
 class raw_ostream;
 class MCAsmBackend;
-class MCAsmLayout;
 class MCContext;
 class MCCodeEmitter;
 class MCFragment;
@@ -341,7 +340,7 @@ public:
   void Finish();
 
   // Layout all section and prepare them for emission.
-  void layout(MCAsmLayout &Layout);
+  void layout();
 
   // FIXME: This does not belong here.
   bool getSubsectionsViaSymbols() const { return SubsectionsViaSymbols; }

llvm/lib/MC/MCAssembler.cpp

@@ -15,7 +15,6 @@
 #include "llvm/ADT/Twine.h"
 #include "llvm/MC/MCAsmBackend.h"
 #include "llvm/MC/MCAsmInfo.h"
-#include "llvm/MC/MCAsmLayout.h"
 #include "llvm/MC/MCCodeEmitter.h"
 #include "llvm/MC/MCCodeView.h"
 #include "llvm/MC/MCContext.h"
@@ -936,7 +935,7 @@ MCAssembler::handleFixup(MCFragment &F, const MCFixup &Fixup,
   return std::make_tuple(Target, FixedValue, IsResolved);
 }
 
-void MCAssembler::layout(MCAsmLayout &Layout) {
+void MCAssembler::layout() {
   assert(getBackendPtr() && "Expected assembler backend");
   DEBUG_WITH_TYPE("mc-dump", {
       errs() << "assembler backend - pre-layout\n--\n";
@@ -1073,9 +1072,7 @@ void MCAssembler::layout(MCAsmLayout &Layout) {
 }
 
 void MCAssembler::Finish() {
-  // Create the layout object.
-  MCAsmLayout Layout(*this);
-  layout(Layout);
+  layout();
 
   // Write the object file.
   stats::ObjectBytes += getWriter().writeObject(*this);

llvm/lib/MC/MCExpr.cpp

@@ -12,7 +12,6 @@
 #include "llvm/Config/llvm-config.h"
 #include "llvm/MC/MCAsmBackend.h"
 #include "llvm/MC/MCAsmInfo.h"
-#include "llvm/MC/MCAsmLayout.h"
 #include "llvm/MC/MCAssembler.h"
 #include "llvm/MC/MCContext.h"
 #include "llvm/MC/MCObjectWriter.h"

llvm/tools/dsymutil/MachOUtils.cpp

@@ -12,7 +12,6 @@
 #include "LinkUtils.h"
 #include "llvm/ADT/SmallString.h"
 #include "llvm/CodeGen/NonRelocatableStringpool.h"
-#include "llvm/MC/MCAsmLayout.h"
 #include "llvm/MC/MCAssembler.h"
 #include "llvm/MC/MCMachObjectWriter.h"
 #include "llvm/MC/MCObjectStreamer.h"
@@ -381,8 +380,7 @@ bool generateDsymCompanion(
   auto &Writer = static_cast<MachObjectWriter &>(MCAsm.getWriter());
 
   // Layout but don't emit.
-  MCAsmLayout Layout(MCAsm);
-  MCAsm.layout(Layout);
+  MCAsm.layout();
 
   BinaryHolder InputBinaryHolder(VFS, false);