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/Alpha/AlphaFrameInfo.h b/lib/Target/Alpha/AlphaFrameInfo.h
new file mode 100644
index 0000000..df23523
--- /dev/null
+++ b/lib/Target/Alpha/AlphaFrameInfo.h
@@ -0,0 +1,41 @@
+//===--- AlphaFrameInfo.h - Define TargetFrameInfo for Alpha --*- C++ -*---===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+//
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef ALPHA_FRAMEINFO_H
+#define ALPHA_FRAMEINFO_H
+
+#include "Alpha.h"
+#include "AlphaSubtarget.h"
+#include "llvm/Target/TargetFrameInfo.h"
+
+namespace llvm {
+  class AlphaSubtarget;
+
+class AlphaFrameInfo : public TargetFrameInfo {
+  const AlphaSubtarget &STI;
+  // FIXME: This should end in MachineFunctionInfo, not here!
+  mutable int curgpdist;
+public:
+  explicit AlphaFrameInfo(const AlphaSubtarget &sti)
+    : TargetFrameInfo(StackGrowsDown, 16, 0), STI(sti), curgpdist(0) {
+  }
+
+  /// 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