1 files changed, 165 insertions, 0 deletions
diff --git a/contrib/llvm/lib/Target/PTX/PTXTargetMachine.cpp b/contrib/llvm/lib/Target/PTX/PTXTargetMachine.cpp
new file mode 100644
index 000000000000..c55a658dc375
--- /dev/null
+++ b/contrib/llvm/lib/Target/PTX/PTXTargetMachine.cpp
@@ -0,0 +1,165 @@
+//===-- PTXTargetMachine.cpp - Define TargetMachine for PTX ---------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// Top-level implementation for the PTX target.
+//
+//===----------------------------------------------------------------------===//
+
+#include "PTXTargetMachine.h"
+#include "PTX.h"
+#include "llvm/PassManager.h"
+#include "llvm/Analysis/Passes.h"
+#include "llvm/Analysis/Verifier.h"
+#include "llvm/Assembly/PrintModulePass.h"
+#include "llvm/CodeGen/AsmPrinter.h"
+#include "llvm/CodeGen/MachineFunctionAnalysis.h"
+#include "llvm/CodeGen/MachineModuleInfo.h"
+#include "llvm/CodeGen/Passes.h"
+#include "llvm/MC/MCAsmInfo.h"
+#include "llvm/MC/MCInstrInfo.h"
+#include "llvm/MC/MCStreamer.h"
+#include "llvm/MC/MCSubtargetInfo.h"
+#include "llvm/Support/Debug.h"
+#include "llvm/Support/TargetRegistry.h"
+#include "llvm/Support/raw_ostream.h"
+#include "llvm/Target/TargetData.h"
+#include "llvm/Target/TargetInstrInfo.h"
+#include "llvm/Target/TargetLowering.h"
+#include "llvm/Target/TargetLoweringObjectFile.h"
+#include "llvm/Target/TargetMachine.h"
+#include "llvm/Target/TargetOptions.h"
+#include "llvm/Target/TargetRegisterInfo.h"
+#include "llvm/Target/TargetSubtargetInfo.h"
+#include "llvm/Transforms/Scalar.h"
+
+
+using namespace llvm;
+
+namespace llvm {
+  MCStreamer *createPTXAsmStreamer(MCContext &Ctx, formatted_raw_ostream &OS,
+                                   bool isVerboseAsm, bool useLoc,
+                                   bool useCFI, bool useDwarfDirectory,
+                                   MCInstPrinter *InstPrint,
+                                   MCCodeEmitter *CE,
+                                   MCAsmBackend *MAB,
+                                   bool ShowInst);
+}
+
+extern "C" void LLVMInitializePTXTarget() {
+
+  RegisterTargetMachine<PTX32TargetMachine> X(ThePTX32Target);
+  RegisterTargetMachine<PTX64TargetMachine> Y(ThePTX64Target);
+
+  TargetRegistry::RegisterAsmStreamer(ThePTX32Target, createPTXAsmStreamer);
+  TargetRegistry::RegisterAsmStreamer(ThePTX64Target, createPTXAsmStreamer);
+}
+
+namespace {
+  const char* DataLayout32 =
+    "e-p:32:32-i64:32:32-f64:32:32-v128:32:128-v64:32:64-n32:64";
+  const char* DataLayout64 =
+    "e-p:64:64-i64:32:32-f64:32:32-v128:32:128-v64:32:64-n32:64";
+}
+
+// DataLayout and FrameLowering are filled with dummy data
+PTXTargetMachine::PTXTargetMachine(const Target &T,
+                                   StringRef TT, StringRef CPU, StringRef FS,
+                                   const TargetOptions &Options,
+                                   Reloc::Model RM, CodeModel::Model CM,
+                                   CodeGenOpt::Level OL,
+                                   bool is64Bit)
+  : LLVMTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL),
+    DataLayout(is64Bit ? DataLayout64 : DataLayout32),
+    Subtarget(TT, CPU, FS, is64Bit),
+    FrameLowering(Subtarget),
+    InstrInfo(*this),
+    TSInfo(*this),
+    TLInfo(*this) {
+}
+
+void PTX32TargetMachine::anchor() { }
+
+PTX32TargetMachine::PTX32TargetMachine(const Target &T, StringRef TT,
+                                       StringRef CPU, StringRef FS,
+                                       const TargetOptions &Options,
+                                       Reloc::Model RM, CodeModel::Model CM,
+                                       CodeGenOpt::Level OL)
+  : PTXTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL, false) {
+}
+
+void PTX64TargetMachine::anchor() { }
+
+PTX64TargetMachine::PTX64TargetMachine(const Target &T, StringRef TT,
+                                       StringRef CPU, StringRef FS,
+                                       const TargetOptions &Options,
+                                       Reloc::Model RM, CodeModel::Model CM,
+                                       CodeGenOpt::Level OL)
+  : PTXTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL, true) {
+}
+
+namespace llvm {
+/// PTX Code Generator Pass Configuration Options.
+class PTXPassConfig : public TargetPassConfig {
+public:
+  PTXPassConfig(PTXTargetMachine *TM, PassManagerBase &PM)
+    : TargetPassConfig(TM, PM) {}
+
+  PTXTargetMachine &getPTXTargetMachine() const {
+      return getTM<PTXTargetMachine>();
+  }
+
+  bool addInstSelector();
+  FunctionPass *createTargetRegisterAllocator(bool);
+  void addOptimizedRegAlloc(FunctionPass *RegAllocPass);
+  bool addPostRegAlloc();
+  void addMachineLateOptimization();
+  bool addPreEmitPass();
+};
+} // namespace
+
+TargetPassConfig *PTXTargetMachine::createPassConfig(PassManagerBase &PM) {
+  PTXPassConfig *PassConfig = new PTXPassConfig(this, PM);
+  PassConfig->disablePass(PrologEpilogCodeInserterID);
+  return PassConfig;
+}
+
+bool PTXPassConfig::addInstSelector() {
+  PM.add(createPTXISelDag(getPTXTargetMachine(), getOptLevel()));
+  return false;
+}
+
+FunctionPass *PTXPassConfig::createTargetRegisterAllocator(bool /*Optimized*/) {
+  return createPTXRegisterAllocator();
+}
+
+// Modify the optimized compilation path to bypass optimized register alloction.
+void PTXPassConfig::addOptimizedRegAlloc(FunctionPass *RegAllocPass) {
+  addFastRegAlloc(RegAllocPass);
+}
+
+bool PTXPassConfig::addPostRegAlloc() {
+  // PTXMFInfoExtract must after register allocation!
+  //PM.add(createPTXMFInfoExtract(getPTXTargetMachine()));
+  return false;
+}
+
+/// Add passes that optimize machine instructions after register allocation.
+void PTXPassConfig::addMachineLateOptimization() {
+  if (addPass(BranchFolderPassID) != &NoPassID)
+    printAndVerify("After BranchFolding");
+
+  if (addPass(TailDuplicateID) != &NoPassID)
+    printAndVerify("After TailDuplicate");
+}
+
+bool PTXPassConfig::addPreEmitPass() {
+  PM.add(createPTXMFInfoExtract(getPTXTargetMachine(), getOptLevel()));
+  PM.add(createPTXFPRoundingModePass(getPTXTargetMachine(), getOptLevel()));
+  return true;
+}