contrib/llvm/lib/Target/PTX/PTXTargetMachine.cpp

   1 //===-- PTXTargetMachine.cpp - Define TargetMachine for PTX ---------------===//
   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 PTX target.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #include "PTX.h"
  15 #include "PTXTargetMachine.h"
  16 #include "llvm/PassManager.h"
  17 #include "llvm/Target/TargetRegistry.h"
  18 #include "llvm/Support/raw_ostream.h"
  19
  20 using namespace llvm;
  21
  22 namespace llvm {
  23   MCStreamer *createPTXAsmStreamer(MCContext &Ctx, formatted_raw_ostream &OS,
  24                                    bool isVerboseAsm, bool useLoc,
  25                                    bool useCFI,
  26                                    MCInstPrinter *InstPrint,
  27                                    MCCodeEmitter *CE,
  28                                    TargetAsmBackend *TAB,
  29                                    bool ShowInst);
  30 }
  31
  32 extern "C" void LLVMInitializePTXTarget() {
  33
  34   RegisterTargetMachine<PTX32TargetMachine> X(ThePTX32Target);
  35   RegisterTargetMachine<PTX64TargetMachine> Y(ThePTX64Target);
  36
  37   TargetRegistry::RegisterAsmStreamer(ThePTX32Target, createPTXAsmStreamer);
  38   TargetRegistry::RegisterAsmStreamer(ThePTX64Target, createPTXAsmStreamer);
  39 }
  40
  41 namespace {
  42   const char* DataLayout32 =
  43     "e-p:32:32-i64:32:32-f64:32:32-v128:32:128-v64:32:64-n32:64";
  44   const char* DataLayout64 =
  45     "e-p:64:64-i64:32:32-f64:32:32-v128:32:128-v64:32:64-n32:64";
  46 }
  47
  48 // DataLayout and FrameLowering are filled with dummy data
  49 PTXTargetMachine::PTXTargetMachine(const Target &T,
  50                                    const std::string &TT,
  51                                    const std::string &CPU,
  52                                    const std::string &FS,
  53                                    bool is64Bit)
  54   : LLVMTargetMachine(T, TT, CPU, FS),
  55     DataLayout(is64Bit ? DataLayout64 : DataLayout32),
  56     Subtarget(TT, CPU, FS, is64Bit),
  57     FrameLowering(Subtarget),
  58     InstrInfo(*this),
  59     TLInfo(*this) {
  60 }
  61
  62 PTX32TargetMachine::PTX32TargetMachine(const Target &T,
  63                                        const std::string& TT,
  64                                        const std::string& CPU,
  65                                        const std::string& FS)
  66   : PTXTargetMachine(T, TT, CPU, FS, false) {
  67 }
  68
  69 PTX64TargetMachine::PTX64TargetMachine(const Target &T,
  70                                        const std::string& TT,
  71                                        const std::string& CPU,
  72                                        const std::string& FS)
  73   : PTXTargetMachine(T, TT, CPU, FS, true) {
  74 }
  75
  76 bool PTXTargetMachine::addInstSelector(PassManagerBase &PM,
  77                                        CodeGenOpt::Level OptLevel) {
  78   PM.add(createPTXISelDag(*this, OptLevel));
  79   return false;
  80 }
  81
  82 bool PTXTargetMachine::addPostRegAlloc(PassManagerBase &PM,
  83                                        CodeGenOpt::Level OptLevel) {
  84   // PTXMFInfoExtract must after register allocation!
  85   PM.add(createPTXMFInfoExtract(*this, OptLevel));
  86   return false;
  87 }