AMDGPU: Add core backend files for R600/SI codegen v6

llvm-svn: 160270

1 files changed, 53 insertions, 0 deletions

diff --git a/llvm/lib/Target/AMDGPU/AMDILFrameLowering.cpp b/llvm/lib/Target/AMDGPU/AMDILFrameLowering.cpp
new file mode 100644
index 00000000000..87eca87e301
--- /dev/null
+++ b/llvm/lib/Target/AMDGPU/AMDILFrameLowering.cpp
@@ -0,0 +1,53 @@
+//===----------------------- AMDILFrameLowering.cpp -----------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//==-----------------------------------------------------------------------===//
+//
+// Interface to describe a layout of a stack frame on a AMDIL target machine
+//
+//===----------------------------------------------------------------------===//
+#include "AMDILFrameLowering.h"
+#include "llvm/CodeGen/MachineFrameInfo.h"
+
+using namespace llvm;
+AMDILFrameLowering::AMDILFrameLowering(StackDirection D, unsigned StackAl,
+    int LAO, unsigned TransAl)
+  : TargetFrameLowering(D, StackAl, LAO, TransAl)
+{
+}
+
+AMDILFrameLowering::~AMDILFrameLowering()
+{
+}
+
+/// getFrameIndexOffset - Returns the displacement from the frame register to
+/// the stack frame of the specified index.
+int AMDILFrameLowering::getFrameIndexOffset(const MachineFunction &MF,
+                                         int FI) const {
+  const MachineFrameInfo *MFI = MF.getFrameInfo();
+  return MFI->getObjectOffset(FI);
+}
+
+const TargetFrameLowering::SpillSlot *
+AMDILFrameLowering::getCalleeSavedSpillSlots(unsigned &NumEntries) const
+{
+  NumEntries = 0;
+  return 0;
+}
+void
+AMDILFrameLowering::emitPrologue(MachineFunction &MF) const
+{
+}
+void
+AMDILFrameLowering::emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const
+{
+}
+bool
+AMDILFrameLowering::hasFP(const MachineFunction &MF) const
+{
+  return false;
+}