lib/Target/TargetFrameInfo.cpp

   1 //===-- TargetFrameInfo.cpp - Implement machine frame interface -*- C++ -*-===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file was developed by the LLVM research group and is distributed under
   6 // the University of Illinois Open Source License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 // Implements the layout of a stack frame on the target machine.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #include "llvm/Target/TargetFrameInfo.h"
  15 #include <cstdlib>
  16
  17 using namespace llvm;
  18
  19 TargetFrameInfo::~TargetFrameInfo()
  20 {
  21 }
  22
  23 //===--------------------------------------------------------------------===//
  24 // These methods provide details of the stack frame used by Sparc, thus they
  25 // are Sparc specific.
  26 //===--------------------------------------------------------------------===//
  27
  28 // This method adjusts a stack offset to meet alignment rules of target.
  29 int
  30 TargetFrameInfo::adjustAlignment(int unalignedOffset, bool growUp,
  31                                  unsigned align) const {
  32   abort();
  33   return 0;
  34 }
  35
  36 // These methods compute offsets using the frame contents for a particular
  37 // function.  The frame contents are obtained from the MachineFunction object
  38 // for the given function.  The rest must be implemented by the
  39 // machine-specific subclass.
  40 //
  41 int
  42 TargetFrameInfo::getIncomingArgOffset(MachineFunction& mcInfo, unsigned argNum)
  43   const {
  44   abort();
  45   return 0;
  46 }
  47
  48 int
  49 TargetFrameInfo::getOutgoingArgOffset(MachineFunction& mcInfo,
  50                                       unsigned argNum) const {
  51   abort();
  52   return 0;
  53 }
  54
  55 int
  56 TargetFrameInfo::getFirstAutomaticVarOffset(MachineFunction& mcInfo,
  57                                             bool& growUp) const {
  58   abort();
  59   return 0;
  60 }
  61
  62 int
  63 TargetFrameInfo::getRegSpillAreaOffset(MachineFunction& mcInfo, bool& growUp)
  64   const {
  65   abort();
  66   return 0;
  67 }
  68
  69 int
  70 TargetFrameInfo::getTmpAreaOffset(MachineFunction& mcInfo, bool& growUp) const {
  71   abort();
  72   return 0;
  73 }
  74
  75 int
  76 TargetFrameInfo::getDynamicAreaOffset(MachineFunction& mcInfo, bool& growUp)
  77   const {
  78   abort();
  79   return 0;
  80 }
  81