src/gallium/drivers/radeon/SIMachineFunctionInfo.cpp

   1 //===-- SIMachineFunctionInfo.cpp - TODO: Add brief description -------===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 // TODO: Add full description
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14
  15 #include "SIMachineFunctionInfo.h"
  16 #include "AMDGPU.h"
  17 #include "llvm/CodeGen/MachineFunctionPass.h"
  18
  19 using namespace llvm;
  20
  21
  22 SIMachineFunctionInfo::SIMachineFunctionInfo()
  23   : AMDILMachineFunctionInfo(),
  24     spi_ps_input_addr(0)
  25   { }
  26
  27 SIMachineFunctionInfo::SIMachineFunctionInfo(MachineFunction &MF)
  28   : AMDILMachineFunctionInfo(MF),
  29     spi_ps_input_addr(0)
  30   { }
  31
  32
  33 namespace {
  34   class SIInitMachineFunctionInfoPass : public MachineFunctionPass {
  35
  36   private:
  37     static char ID;
  38     TargetMachine &TM;
  39
  40   public:
  41     SIInitMachineFunctionInfoPass(TargetMachine &tm) :
  42       MachineFunctionPass(ID), TM(tm) { }
  43     virtual bool runOnMachineFunction(MachineFunction &MF);
  44   };
  45 } // End anonymous namespace
  46
  47 char SIInitMachineFunctionInfoPass::ID = 0;
  48
  49 FunctionPass *llvm::createSIInitMachineFunctionInfoPass(TargetMachine &tm) {
  50   return new SIInitMachineFunctionInfoPass(tm);
  51 }
  52
  53 /* A MachineFunction's MachineFunctionInfo is initialized in the first call to
  54  * getInfo().  We need to intialize it as an SIMachineFunctionInfo object
  55  * before any of the AMDIL passes otherwise it will be an
  56  * AMDILMachineFunctionInfo object and we won't be able to use it.
  57  */
  58 bool SIInitMachineFunctionInfoPass::runOnMachineFunction(MachineFunction &MF)
  59 {
  60   SIMachineFunctionInfo * MFI = MF.getInfo<SIMachineFunctionInfo>();
  61   return false;
  62 }