[X86] Move X86ShuffleDecode.cpp/h into MCTargetDesc and remove X86Utils library. NFC

The shuffle decoding is used by X86ISelLowering and
MCTargetDesc/X86InstComments. The latter used to be in a
separate InstPrinter library. The Utils library existed to allow
InstPrinter and CodeGen to share the shuffle decoding. Since
X86InstComments now lives in the MCTargetDesc, which CodeGen
already depends on, we can sink the shuffle decoding there as well.

Differential Revision: https://reviews.llvm.org/D77980

llvm/lib/Target/X86/CMakeLists.txt

@@ -80,4 +80,3 @@ add_subdirectory(AsmParser)
 add_subdirectory(Disassembler)
 add_subdirectory(MCTargetDesc)
 add_subdirectory(TargetInfo)
-add_subdirectory(Utils)

llvm/lib/Target/X86/LLVMBuild.txt

@@ -15,7 +15,7 @@
 ;===------------------------------------------------------------------------===;
 
 [common]
-subdirectories = AsmParser Disassembler MCTargetDesc TargetInfo Utils
+subdirectories = AsmParser Disassembler MCTargetDesc TargetInfo
 
 [component_0]
 type = TargetGroup
@@ -30,5 +30,5 @@ has_jit = 1
 type = Library
 name = X86CodeGen
 parent = X86
-required_libraries = Analysis AsmPrinter CodeGen Core MC SelectionDAG Support Target X86Desc X86Info X86Utils GlobalISel ProfileData CFGuard
+required_libraries = Analysis AsmPrinter CodeGen Core MC SelectionDAG Support Target X86Desc X86Info GlobalISel ProfileData CFGuard
 add_to_library_groups = X86

llvm/lib/Target/X86/MCTargetDesc/CMakeLists.txt

@@ -3,6 +3,7 @@ add_llvm_component_library(LLVMX86Desc
   X86IntelInstPrinter.cpp
   X86InstComments.cpp
   X86InstPrinterCommon.cpp
+  X86ShuffleDecode.cpp
   X86AsmBackend.cpp
   X86MCTargetDesc.cpp
   X86MCAsmInfo.cpp

llvm/lib/Target/X86/MCTargetDesc/LLVMBuild.txt

@@ -18,5 +18,5 @@
 type = Library
 name = X86Desc
 parent = X86
-required_libraries = MC MCDisassembler Support X86Info X86Utils BinaryFormat
+required_libraries = MC MCDisassembler Support X86Info BinaryFormat
 add_to_library_groups = X86

llvm/lib/Target/X86/MCTargetDesc/X86InstComments.cpp

@@ -15,7 +15,7 @@
 #include "X86ATTInstPrinter.h"
 #include "X86BaseInfo.h"
 #include "X86MCTargetDesc.h"
-#include "Utils/X86ShuffleDecode.h"
+#include "X86ShuffleDecode.h"
 #include "llvm/MC/MCInst.h"
 #include "llvm/MC/MCInstrInfo.h"
 #include "llvm/Support/raw_ostream.h"

llvm/lib/Target/X86/Utils/CMakeLists.txt

@@ -1,3 +0,0 @@
-add_llvm_component_library(LLVMX86Utils
-  X86ShuffleDecode.cpp
-  )

llvm/lib/Target/X86/Utils/LLVMBuild.txt

@@ -1,22 +0,0 @@
-;===- ./lib/Target/X86/Utils/LLVMBuild.txt ---------------------*- Conf -*--===;
-;
-; 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 is an LLVMBuild description file for the components in this subdirectory.
-;
-; For more information on the LLVMBuild system, please see:
-;
-;   http://llvm.org/docs/LLVMBuild.html
-;
-;===------------------------------------------------------------------------===;
-
-[component_0]
-type = Library
-name = X86Utils
-parent = X86
-required_libraries = Support
-add_to_library_groups = X86

llvm/lib/Target/X86/X86ISelLowering.cpp

@@ -12,7 +12,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "X86ISelLowering.h"
-#include "Utils/X86ShuffleDecode.h"
+#include "MCTargetDesc/X86ShuffleDecode.h"
 #include "X86CallingConv.h"
 #include "X86FrameLowering.h"
 #include "X86InstrBuilder.h"

llvm/lib/Target/X86/X86MCInstLower.cpp

@@ -14,8 +14,8 @@
 #include "MCTargetDesc/X86ATTInstPrinter.h"
 #include "MCTargetDesc/X86BaseInfo.h"
 #include "MCTargetDesc/X86InstComments.h"
+#include "MCTargetDesc/X86ShuffleDecode.h"
 #include "MCTargetDesc/X86TargetStreamer.h"
-#include "Utils/X86ShuffleDecode.h"
 #include "X86AsmPrinter.h"
 #include "X86RegisterInfo.h"
 #include "X86ShuffleDecodeConstantPool.h"

llvm/lib/Target/X86/X86ShuffleDecodeConstantPool.cpp

@@ -12,7 +12,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "X86ShuffleDecodeConstantPool.h"
-#include "Utils/X86ShuffleDecode.h"
+#include "MCTargetDesc/X86ShuffleDecode.h"
 #include "llvm/ADT/APInt.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/IR/Constants.h"