First step of huge frame-related refactoring: move emit{Prologue,Epilogue} out of TargetRegisterInfo to TargetFrameInfo, which is definitely much better suitable place

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119097 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 41 insertions, 0 deletions

diff --git a/lib/Target/SystemZ/SystemZFrameInfo.h b/lib/Target/SystemZ/SystemZFrameInfo.h
new file mode 100644
index 0000000..2f97331
--- /dev/null
+++ b/lib/Target/SystemZ/SystemZFrameInfo.h
@@ -0,0 +1,41 @@
+//==- SystemZFrameInfo.h - Define TargetFrameInfo for z/System --*- C++ -*--==//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+//
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef SYSTEMZ_FRAMEINFO_H
+#define SYSTEMZ_FRAMEINFO_H
+
+#include "SystemZ.h"
+#include "SystemZSubtarget.h"
+#include "llvm/Target/TargetFrameInfo.h"
+
+namespace llvm {
+  class SystemZSubtarget;
+
+class SystemZFrameInfo : public TargetFrameInfo {
+protected:
+  const SystemZSubtarget &STI;
+
+public:
+  explicit SystemZFrameInfo(const SystemZSubtarget &sti)
+    : TargetFrameInfo(TargetFrameInfo::StackGrowsDown, 8, -160), STI(sti) {
+  }
+
+  /// emitProlog/emitEpilog - These methods insert prolog and epilog code into
+  /// the function.
+  void emitPrologue(MachineFunction &MF) const;
+  void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
+};
+
+} // End llvm namespace
+
+#endif