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      1 //===-- NVPTXTargetMachine.cpp - Define TargetMachine for NVPTX -----------===//
      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 // Top-level implementation for the NVPTX target.
     11 //
     12 //===----------------------------------------------------------------------===//
     13 
     14 #include "NVPTXTargetMachine.h"
     15 #include "MCTargetDesc/NVPTXMCAsmInfo.h"
     16 #include "NVPTX.h"
     17 #include "NVPTXAllocaHoisting.h"
     18 #include "NVPTXLowerAggrCopies.h"
     19 #include "NVPTXSplitBBatBar.h"
     20 #include "llvm/ADT/OwningPtr.h"
     21 #include "llvm/Analysis/Passes.h"
     22 #include "llvm/Analysis/Verifier.h"
     23 #include "llvm/Assembly/PrintModulePass.h"
     24 #include "llvm/CodeGen/AsmPrinter.h"
     25 #include "llvm/CodeGen/MachineFunctionAnalysis.h"
     26 #include "llvm/CodeGen/MachineModuleInfo.h"
     27 #include "llvm/CodeGen/Passes.h"
     28 #include "llvm/IR/DataLayout.h"
     29 #include "llvm/MC/MCAsmInfo.h"
     30 #include "llvm/MC/MCInstrInfo.h"
     31 #include "llvm/MC/MCStreamer.h"
     32 #include "llvm/MC/MCSubtargetInfo.h"
     33 #include "llvm/PassManager.h"
     34 #include "llvm/Support/CommandLine.h"
     35 #include "llvm/Support/Debug.h"
     36 #include "llvm/Support/FormattedStream.h"
     37 #include "llvm/Support/TargetRegistry.h"
     38 #include "llvm/Support/raw_ostream.h"
     39 #include "llvm/Target/TargetInstrInfo.h"
     40 #include "llvm/Target/TargetLowering.h"
     41 #include "llvm/Target/TargetLoweringObjectFile.h"
     42 #include "llvm/Target/TargetMachine.h"
     43 #include "llvm/Target/TargetOptions.h"
     44 #include "llvm/Target/TargetRegisterInfo.h"
     45 #include "llvm/Target/TargetSubtargetInfo.h"
     46 #include "llvm/Transforms/Scalar.h"
     47 
     48 
     49 using namespace llvm;
     50 
     51 
     52 extern "C" void LLVMInitializeNVPTXTarget() {
     53   // Register the target.
     54   RegisterTargetMachine<NVPTXTargetMachine32> X(TheNVPTXTarget32);
     55   RegisterTargetMachine<NVPTXTargetMachine64> Y(TheNVPTXTarget64);
     56 
     57   RegisterMCAsmInfo<NVPTXMCAsmInfo> A(TheNVPTXTarget32);
     58   RegisterMCAsmInfo<NVPTXMCAsmInfo> B(TheNVPTXTarget64);
     59 
     60 }
     61 
     62 NVPTXTargetMachine::NVPTXTargetMachine(const Target &T,
     63                                        StringRef TT,
     64                                        StringRef CPU,
     65                                        StringRef FS,
     66                                        const TargetOptions& Options,
     67                                        Reloc::Model RM,
     68                                        CodeModel::Model CM,
     69                                        CodeGenOpt::Level OL,
     70                                        bool is64bit)
     71 : LLVMTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL),
     72   Subtarget(TT, CPU, FS, is64bit),
     73   DL(Subtarget.getDataLayout()),
     74   InstrInfo(*this), TLInfo(*this), TSInfo(*this), FrameLowering(*this,is64bit)
     75 /*FrameInfo(TargetFrameInfo::StackGrowsUp, 8, 0)*/ {
     76 }
     77 
     78 
     79 
     80 void NVPTXTargetMachine32::anchor() {}
     81 
     82 NVPTXTargetMachine32::NVPTXTargetMachine32(const Target &T, StringRef TT,
     83                                            StringRef CPU, StringRef FS,
     84                                            const TargetOptions &Options,
     85                                            Reloc::Model RM, CodeModel::Model CM,
     86                                            CodeGenOpt::Level OL)
     87 : NVPTXTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL, false) {
     88 }
     89 
     90 void NVPTXTargetMachine64::anchor() {}
     91 
     92 NVPTXTargetMachine64::NVPTXTargetMachine64(const Target &T, StringRef TT,
     93                                            StringRef CPU, StringRef FS,
     94                                            const TargetOptions &Options,
     95                                            Reloc::Model RM, CodeModel::Model CM,
     96                                            CodeGenOpt::Level OL)
     97 : NVPTXTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL, true) {
     98 }
     99 
    100 
    101 namespace llvm {
    102 class NVPTXPassConfig : public TargetPassConfig {
    103 public:
    104   NVPTXPassConfig(NVPTXTargetMachine *TM, PassManagerBase &PM)
    105   : TargetPassConfig(TM, PM) {}
    106 
    107   NVPTXTargetMachine &getNVPTXTargetMachine() const {
    108     return getTM<NVPTXTargetMachine>();
    109   }
    110 
    111   virtual bool addInstSelector();
    112   virtual bool addPreRegAlloc();
    113 };
    114 }
    115 
    116 TargetPassConfig *NVPTXTargetMachine::createPassConfig(PassManagerBase &PM) {
    117   NVPTXPassConfig *PassConfig = new NVPTXPassConfig(this, PM);
    118   return PassConfig;
    119 }
    120 
    121 bool NVPTXPassConfig::addInstSelector() {
    122   addPass(createLowerAggrCopies());
    123   addPass(createSplitBBatBarPass());
    124   addPass(createAllocaHoisting());
    125   addPass(createNVPTXISelDag(getNVPTXTargetMachine(), getOptLevel()));
    126   return false;
    127 }
    128 
    129 bool NVPTXPassConfig::addPreRegAlloc() {
    130   return false;
    131 }
    132