[X86] Create a TargetInfo header. NFC

Move the declarations of getThe<Name>Target() functions into a new header in
TargetInfo and make users of these functions include this new header.
This fixes a layering problem.

llvm-svn: 360736

lib/Target/X86/AsmParser/X86AsmParser.cpp

@@ -10,6 +10,7 @@
 #include "MCTargetDesc/X86IntelInstPrinter.h"
 #include "MCTargetDesc/X86MCExpr.h"
 #include "MCTargetDesc/X86TargetStreamer.h"
+#include "TargetInfo/X86TargetInfo.h"
 #include "X86AsmParserCommon.h"
 #include "X86Operand.h"
 #include "llvm/ADT/STLExtras.h"

lib/Target/X86/Disassembler/X86Disassembler.cpp

@@ -75,6 +75,7 @@
 
 #include "MCTargetDesc/X86BaseInfo.h"
 #include "MCTargetDesc/X86MCTargetDesc.h"
+#include "TargetInfo/X86TargetInfo.h"
 #include "X86DisassemblerDecoder.h"
 #include "llvm/MC/MCContext.h"
 #include "llvm/MC/MCDisassembler/MCDisassembler.h"

lib/Target/X86/MCTargetDesc/X86MCTargetDesc.cpp

@@ -11,6 +11,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "X86MCTargetDesc.h"
+#include "TargetInfo/X86TargetInfo.h"
 #include "X86ATTInstPrinter.h"
 #include "X86BaseInfo.h"
 #include "X86IntelInstPrinter.h"

lib/Target/X86/MCTargetDesc/X86MCTargetDesc.h

@@ -34,9 +34,6 @@ class StringRef;
 class raw_ostream;
 class raw_pwrite_stream;
 
-Target &getTheX86_32Target();
-Target &getTheX86_64Target();
-
 /// Flavour of dwarf regnumbers
 ///
 namespace DWARFFlavour {

lib/Target/X86/TargetInfo/X86TargetInfo.cpp

@@ -6,7 +6,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "MCTargetDesc/X86MCTargetDesc.h"
+#include "TargetInfo/X86TargetInfo.h"
 #include "llvm/Support/TargetRegistry.h"
 using namespace llvm;
 

lib/Target/X86/TargetInfo/X86TargetInfo.h

@@ -0,0 +1,21 @@
+//===-- X86TargetInfo.h - X86 Target Implementation -------------*- 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_LIB_TARGET_X86_TARGETINFO_X86TARGETINFO_H
+#define LLVM_LIB_TARGET_X86_TARGETINFO_X86TARGETINFO_H
+
+namespace llvm {
+
+class Target;
+
+Target &getTheX86_32Target();
+Target &getTheX86_64Target();
+
+}
+
+#endif // LLVM_LIB_TARGET_X86_TARGETINFO_X86TARGETINFO_H

lib/Target/X86/X86AsmPrinter.cpp

@@ -15,6 +15,7 @@
 #include "MCTargetDesc/X86ATTInstPrinter.h"
 #include "MCTargetDesc/X86BaseInfo.h"
 #include "MCTargetDesc/X86TargetStreamer.h"
+#include "TargetInfo/X86TargetInfo.h"
 #include "X86InstrInfo.h"
 #include "X86MachineFunctionInfo.h"
 #include "llvm/BinaryFormat/COFF.h"

lib/Target/X86/X86TargetMachine.cpp

@@ -12,6 +12,7 @@
 
 #include "X86TargetMachine.h"
 #include "MCTargetDesc/X86MCTargetDesc.h"
+#include "TargetInfo/X86TargetInfo.h"
 #include "X86.h"
 #include "X86CallLowering.h"
 #include "X86LegalizerInfo.h"