Add MCTargetDesc library to Hexagon target

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146692 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 94 insertions, 0 deletions

diff --git a/lib/Target/Hexagon/MCTargetDesc/HexagonMCTargetDesc.cpp b/lib/Target/Hexagon/MCTargetDesc/HexagonMCTargetDesc.cpp
new file mode 100644
index 0000000000..625f07ccd1
--- /dev/null
+++ b/lib/Target/Hexagon/MCTargetDesc/HexagonMCTargetDesc.cpp
@@ -0,0 +1,94 @@
+//===-- HexagonMCTargetDesc.cpp - Cell Hexagon Target Descriptions -----*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file provides Cell Hexagon specific target descriptions.
+//
+//===----------------------------------------------------------------------===//
+
+#include "HexagonMCTargetDesc.h"
+#include "HexagonMCAsmInfo.h"
+#include "llvm/MC/MachineLocation.h"
+#include "llvm/MC/MCCodeGenInfo.h"
+#include "llvm/MC/MCInstrInfo.h"
+#include "llvm/MC/MCRegisterInfo.h"
+#include "llvm/MC/MCSubtargetInfo.h"
+#include "llvm/Support/TargetRegistry.h"
+
+#define GET_INSTRINFO_MC_DESC
+#include "HexagonGenInstrInfo.inc"
+
+#define GET_SUBTARGETINFO_MC_DESC
+#include "HexagonGenSubtargetInfo.inc"
+
+#define GET_REGINFO_MC_DESC
+#include "HexagonGenRegisterInfo.inc"
+
+using namespace llvm;
+
+static MCInstrInfo *createHexagonMCInstrInfo() {
+  MCInstrInfo *X = new MCInstrInfo();
+  InitHexagonMCInstrInfo(X);
+  return X;
+}
+
+static MCRegisterInfo *createHexagonMCRegisterInfo(StringRef TT) {
+  MCRegisterInfo *X = new MCRegisterInfo();
+  InitHexagonMCRegisterInfo(X, Hexagon::R0);
+  return X;
+}
+
+static MCSubtargetInfo *createHexagonMCSubtargetInfo(StringRef TT,
+                                                     StringRef CPU,
+                                                     StringRef FS) {
+  MCSubtargetInfo *X = new MCSubtargetInfo();
+  InitHexagonMCSubtargetInfo(X, TT, CPU, FS);
+  return X;
+}
+
+static MCAsmInfo *createHexagonMCAsmInfo(const Target &T, StringRef TT) {
+  MCAsmInfo *MAI = new HexagonMCAsmInfo(T, TT);
+
+  // VirtualFP = (R30 + #0).
+  MachineLocation Dst(MachineLocation::VirtualFP);
+  MachineLocation Src(Hexagon::R30, 0);
+  MAI->addInitialFrameState(0, Dst, Src);
+
+  return MAI;
+}
+
+static MCCodeGenInfo *createHexagonMCCodeGenInfo(StringRef TT, Reloc::Model RM,
+                                             CodeModel::Model CM,
+                                             CodeGenOpt::Level OL) {
+  MCCodeGenInfo *X = new MCCodeGenInfo();
+  // For the time being, use static relocations, since there's really no
+  // support for PIC yet.
+  X->InitMCCodeGenInfo(Reloc::Static, CM, OL);
+  return X;
+}
+
+// Force static initialization.
+extern "C" void LLVMInitializeHexagonTargetMC() {
+  // Register the MC asm info.
+  RegisterMCAsmInfoFn X(TheHexagonTarget, createHexagonMCAsmInfo);
+
+  // Register the MC codegen info.
+  TargetRegistry::RegisterMCCodeGenInfo(TheHexagonTarget,
+                                        createHexagonMCCodeGenInfo);
+
+  // Register the MC instruction info.
+  TargetRegistry::RegisterMCInstrInfo(TheHexagonTarget, createHexagonMCInstrInfo);
+
+  // Register the MC register info.
+  TargetRegistry::RegisterMCRegInfo(TheHexagonTarget,
+                                    createHexagonMCRegisterInfo);
+
+  // Register the MC subtarget info.
+  TargetRegistry::RegisterMCSubtargetInfo(TheHexagonTarget,
+                                          createHexagonMCSubtargetInfo);
+}