Replace PowerPCPEI.cpp with target independant PrologEpilogInserter

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15746 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 45 insertions, 0 deletions

diff --git a/lib/Target/PowerPC/PPCFrameInfo.h b/lib/Target/PowerPC/PPCFrameInfo.h
new file mode 100644
index 0000000000..ba6209fac5
--- /dev/null
+++ b/lib/Target/PowerPC/PPCFrameInfo.h
@@ -0,0 +1,45 @@
+//===-- PowerPCFrameInfo.h - Define TargetFrameInfo for PowerPC -*- C++ -*-===//
+// 
+//                     The LLVM Compiler Infrastructure
+//
+// This file was developed by the LLVM research group and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// 
+//===----------------------------------------------------------------------===//
+//
+//
+//----------------------------------------------------------------------------
+
+#ifndef POWERPC_FRAMEINFO_H
+#define POWERPC_FRAMEINFO_H
+
+#include "PowerPC.h"
+#include "llvm/Target/TargetFrameInfo.h"
+#include "llvm/Target/TargetMachine.h"
+#include "llvm/Target/MRegisterInfo.h"
+#include <map>
+
+namespace llvm {
+
+class PowerPCFrameInfo: public TargetFrameInfo {
+  const TargetMachine &TM;
+  std::pair<unsigned, int> LR[1];
+  
+public:
+
+  PowerPCFrameInfo(const TargetMachine &inTM)
+    : TargetFrameInfo(TargetFrameInfo::StackGrowsDown, 16, 0), TM(inTM) {
+    LR[0].first = PPC::LR;
+    LR[0].second = 8;
+  }
+
+  std::pair<unsigned, int> *
+  getCalleeSaveSpillSlots(unsigned &NumEntries) const {
+    NumEntries = 1;
+    return static_cast<std::pair<unsigned, int> *>(LR);
+  }
+};
+
+} // End llvm namespace
+
+#endif