4 files changed, 136 insertions, 0 deletions
diff --git a/lib/Target/MBlaze/InstPrinter/CMakeLists.txt b/lib/Target/MBlaze/InstPrinter/CMakeLists.txt
new file mode 100644
index 0000000..242a573
--- /dev/null
+++ b/lib/Target/MBlaze/InstPrinter/CMakeLists.txt
@@ -0,0 +1,8 @@
+include_directories( ${CMAKE_CURRENT_BINARY_DIR}/.. 
+                     ${CMAKE_CURRENT_SOURCE_DIR}/.. )
+
+add_llvm_library(LLVMMBlazeAsmPrinter
+    MBlazeInstPrinter.cpp
+  )
+
+add_dependencies(LLVMMBlazeAsmPrinter MBlazeCodeGenTable_gen)
diff --git a/lib/Target/MBlaze/InstPrinter/MBlazeInstPrinter.cpp b/lib/Target/MBlaze/InstPrinter/MBlazeInstPrinter.cpp
new file mode 100644
index 0000000..a7fd287
--- /dev/null
+++ b/lib/Target/MBlaze/InstPrinter/MBlazeInstPrinter.cpp
@@ -0,0 +1,69 @@
+//===-- MBlazeInstPrinter.cpp - Convert MBlaze MCInst to assembly syntax --===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This class prints an MBlaze MCInst to a .s file.
+//
+//===----------------------------------------------------------------------===//
+
+#define DEBUG_TYPE "asm-printer"
+#include "MBlaze.h"
+#include "MBlazeInstPrinter.h"
+#include "llvm/MC/MCInst.h"
+#include "llvm/MC/MCAsmInfo.h"
+#include "llvm/MC/MCExpr.h"
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/FormattedStream.h"
+using namespace llvm;
+
+
+// Include the auto-generated portion of the assembly writer.
+#include "MBlazeGenAsmWriter.inc"
+
+void MBlazeInstPrinter::printInst(const MCInst *MI, raw_ostream &O) {
+  printInstruction(MI, O);
+}
+
+void MBlazeInstPrinter::printOperand(const MCInst *MI, unsigned OpNo,
+                                     raw_ostream &O, const char *Modifier) {
+  assert((Modifier == 0 || Modifier[0] == 0) && "No modifiers supported");
+  const MCOperand &Op = MI->getOperand(OpNo);
+  if (Op.isReg()) {
+    O << getRegisterName(Op.getReg());
+  } else if (Op.isImm()) {
+    O << (int32_t)Op.getImm();
+  } else {
+    assert(Op.isExpr() && "unknown operand kind in printOperand");
+    O << *Op.getExpr();
+  }
+}
+
+void MBlazeInstPrinter::printFSLImm(const MCInst *MI, int OpNo,
+                                    raw_ostream &O) {
+  const MCOperand &MO = MI->getOperand(OpNo);
+  if (MO.isImm())
+    O << "rfsl" << MO.getImm();
+  else
+    printOperand(MI, OpNo, O, NULL);
+}
+
+void MBlazeInstPrinter::printUnsignedImm(const MCInst *MI, int OpNo,
+                                        raw_ostream &O) {
+  const MCOperand &MO = MI->getOperand(OpNo);
+  if (MO.isImm())
+    O << (uint32_t)MO.getImm();
+  else
+    printOperand(MI, OpNo, O, NULL);
+}
+
+void MBlazeInstPrinter::printMemOperand(const MCInst *MI, int OpNo,
+                                        raw_ostream &O, const char *Modifier) {
+  printOperand(MI, OpNo, O, NULL);
+  O << ", ";
+  printOperand(MI, OpNo+1, O, NULL);
+}
diff --git a/lib/Target/MBlaze/InstPrinter/MBlazeInstPrinter.h b/lib/Target/MBlaze/InstPrinter/MBlazeInstPrinter.h
new file mode 100644
index 0000000..bebc6c8
--- /dev/null
+++ b/lib/Target/MBlaze/InstPrinter/MBlazeInstPrinter.h
@@ -0,0 +1,43 @@
+//===-- MBLazeInstPrinter.h - Convert MBlaze MCInst to assembly syntax ----===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This class prints a MBlaze MCInst to a .s file.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef MBLAZEINSTPRINTER_H
+#define MBLAZEINSTPRINTER_H
+
+#include "llvm/MC/MCInstPrinter.h"
+
+namespace llvm {
+  class MCOperand;
+
+  class MBlazeInstPrinter : public MCInstPrinter {
+  public:
+    MBlazeInstPrinter(const MCAsmInfo &MAI) : MCInstPrinter(MAI) {
+    }
+
+    virtual void printInst(const MCInst *MI, raw_ostream &O);
+
+    // Autogenerated by tblgen.
+    void printInstruction(const MCInst *MI, raw_ostream &O);
+    static const char *getRegisterName(unsigned RegNo);
+    static const char *getInstructionName(unsigned Opcode);
+
+    void printOperand(const MCInst *MI, unsigned OpNo, raw_ostream &O,
+                      const char *Modifier = 0);
+    void printFSLImm(const MCInst *MI, int OpNo, raw_ostream &O);
+    void printUnsignedImm(const MCInst *MI, int OpNo, raw_ostream &O);
+    void printMemOperand(const MCInst *MI, int OpNo,raw_ostream &O,
+                         const char *Modifier = 0);
+  };
+}
+
+#endif
diff --git a/lib/Target/MBlaze/InstPrinter/Makefile b/lib/Target/MBlaze/InstPrinter/Makefile
new file mode 100644
index 0000000..9fb6e86
--- /dev/null
+++ b/lib/Target/MBlaze/InstPrinter/Makefile
@@ -0,0 +1,16 @@
+##===- lib/Target/MBlaze/AsmPrinter/Makefile ---------------*- Makefile -*-===##
+#
+#                     The LLVM Compiler Infrastructure
+#
+# This file is distributed under the University of Illinois Open Source
+# License. See LICENSE.TXT for details.
+#
+##===----------------------------------------------------------------------===##
+LEVEL = ../../../..
+LIBRARYNAME = LLVMMBlazeAsmPrinter
+
+# Hack: we need to include 'main' MBlaze target directory to grab
+#       private headers
+CPP.Flags += -I$(PROJ_OBJ_DIR)/.. -I$(PROJ_SRC_DIR)/..
+
+include $(LEVEL)/Makefile.common