1 files changed, 81 insertions, 0 deletions
diff --git a/contrib/llvm/lib/Target/MBlaze/MBlazeTargetMachine.cpp b/contrib/llvm/lib/Target/MBlaze/MBlazeTargetMachine.cpp
new file mode 100644
index 0000000..5f82f14
--- /dev/null
+++ b/contrib/llvm/lib/Target/MBlaze/MBlazeTargetMachine.cpp
@@ -0,0 +1,81 @@
+//===-- MBlazeTargetMachine.cpp - Define TargetMachine for MBlaze ---------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// Implements the info about MBlaze target spec.
+//
+//===----------------------------------------------------------------------===//
+
+#include "MBlazeTargetMachine.h"
+#include "MBlaze.h"
+#include "llvm/PassManager.h"
+#include "llvm/CodeGen/Passes.h"
+#include "llvm/Support/FormattedStream.h"
+#include "llvm/Support/TargetRegistry.h"
+#include "llvm/Target/TargetOptions.h"
+using namespace llvm;
+
+extern "C" void LLVMInitializeMBlazeTarget() {
+  // Register the target.
+  RegisterTargetMachine<MBlazeTargetMachine> X(TheMBlazeTarget);
+}
+
+// DataLayout --> Big-endian, 32-bit pointer/ABI/alignment
+// The stack is always 8 byte aligned
+// On function prologue, the stack is created by decrementing
+// its pointer. Once decremented, all references are done with positive
+// offset from the stack/frame pointer, using StackGrowsUp enables
+// an easier handling.
+MBlazeTargetMachine::
+MBlazeTargetMachine(const Target &T, StringRef TT,
+                    StringRef CPU, StringRef FS, const TargetOptions &Options,
+                    Reloc::Model RM, CodeModel::Model CM,
+                    CodeGenOpt::Level OL)
+  : LLVMTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL),
+    Subtarget(TT, CPU, FS),
+    DataLayout("E-p:32:32:32-i8:8:8-i16:16:16"),
+    InstrInfo(*this),
+    FrameLowering(Subtarget),
+    TLInfo(*this), TSInfo(*this), ELFWriterInfo(*this),
+    InstrItins(Subtarget.getInstrItineraryData()) {
+}
+
+namespace {
+/// MBlaze Code Generator Pass Configuration Options.
+class MBlazePassConfig : public TargetPassConfig {
+public:
+  MBlazePassConfig(MBlazeTargetMachine *TM, PassManagerBase &PM)
+    : TargetPassConfig(TM, PM) {}
+
+  MBlazeTargetMachine &getMBlazeTargetMachine() const {
+    return getTM<MBlazeTargetMachine>();
+  }
+
+  virtual bool addInstSelector();
+  virtual bool addPreEmitPass();
+};
+} // namespace
+
+TargetPassConfig *MBlazeTargetMachine::createPassConfig(PassManagerBase &PM) {
+  return new MBlazePassConfig(this, PM);
+}
+
+// Install an instruction selector pass using
+// the ISelDag to gen MBlaze code.
+bool MBlazePassConfig::addInstSelector() {
+  addPass(createMBlazeISelDag(getMBlazeTargetMachine()));
+  return false;
+}
+
+// Implemented by targets that want to run passes immediately before
+// machine code is emitted. return true if -print-machineinstrs should
+// print out the code after the passes.
+bool MBlazePassConfig::addPreEmitPass() {
+  addPass(createMBlazeDelaySlotFillerPass(getMBlazeTargetMachine()));
+  return true;
+}