Let's start another backend :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75909 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 68 insertions, 0 deletions

diff --git a/lib/Target/SystemZ/SystemZTargetMachine.h b/lib/Target/SystemZ/SystemZTargetMachine.h
new file mode 100644
index 0000000000..194d5fe016
--- /dev/null
+++ b/lib/Target/SystemZ/SystemZTargetMachine.h
@@ -0,0 +1,68 @@
+//==- SystemZTargetMachine.h - Define TargetMachine for SystemZ ---*- C++ -*-=//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file declares the SystemZ specific subclass of TargetMachine.
+//
+//===----------------------------------------------------------------------===//
+
+
+#ifndef LLVM_TARGET_SYSTEMZ_TARGETMACHINE_H
+#define LLVM_TARGET_SYSTEMZ_TARGETMACHINE_H
+
+#include "SystemZInstrInfo.h"
+#include "SystemZISelLowering.h"
+#include "SystemZRegisterInfo.h"
+#include "SystemZSubtarget.h"
+#include "llvm/Target/TargetData.h"
+#include "llvm/Target/TargetFrameInfo.h"
+#include "llvm/Target/TargetMachine.h"
+
+namespace llvm {
+
+/// SystemZTargetMachine
+///
+class SystemZTargetMachine : public LLVMTargetMachine {
+  SystemZSubtarget        Subtarget;
+  const TargetData        DataLayout;       // Calculates type size & alignment
+  SystemZInstrInfo        InstrInfo;
+  SystemZTargetLowering   TLInfo;
+
+  // SystemZ does not have any call stack frame, therefore not having
+  // any SystemZ specific FrameInfo class.
+  TargetFrameInfo       FrameInfo;
+
+protected:
+  virtual const TargetAsmInfo *createTargetAsmInfo() const;
+
+public:
+  SystemZTargetMachine(const Module &M, const std::string &FS);
+
+  virtual const TargetFrameInfo *getFrameInfo() const { return &FrameInfo; }
+  virtual const SystemZInstrInfo *getInstrInfo() const  { return &InstrInfo; }
+  virtual const TargetData *getTargetData() const     { return &DataLayout;}
+  virtual const SystemZSubtarget *getSubtargetImpl() const { return &Subtarget; }
+
+  virtual const TargetRegisterInfo *getRegisterInfo() const {
+    return &InstrInfo.getRegisterInfo();
+  }
+
+  virtual SystemZTargetLowering *getTargetLowering() const {
+    return const_cast<SystemZTargetLowering*>(&TLInfo);
+  }
+
+  virtual bool addInstSelector(PassManagerBase &PM, CodeGenOpt::Level OptLevel);
+  virtual bool addAssemblyEmitter(PassManagerBase &PM,
+                                  CodeGenOpt::Level OptLevel, bool Verbose,
+                                  raw_ostream &Out);
+  static unsigned getModuleMatchQuality(const Module &M);
+}; // SystemZTargetMachine.
+
+} // end namespace llvm
+
+#endif // LLVM_TARGET_SystemZ_TARGETMACHINE_H