5 files changed, 264 insertions, 0 deletions
diff --git a/lib/Target/SystemZ/InstPrinter/CMakeLists.txt b/lib/Target/SystemZ/InstPrinter/CMakeLists.txt
new file mode 100644
index 0000000..ddbf82f
--- /dev/null
+++ b/lib/Target/SystemZ/InstPrinter/CMakeLists.txt
@@ -0,0 +1,7 @@
+include_directories( ${CMAKE_CURRENT_BINARY_DIR}/.. ${CMAKE_CURRENT_SOURCE_DIR}/.. )
+
+add_llvm_library(LLVMSystemZAsmPrinter
+  SystemZInstPrinter.cpp
+  )
+
+add_dependencies(LLVMSystemZAsmPrinter SystemZCommonTableGen)
diff --git a/lib/Target/SystemZ/InstPrinter/LLVMBuild.txt b/lib/Target/SystemZ/InstPrinter/LLVMBuild.txt
new file mode 100644
index 0000000..fdfd738
--- /dev/null
+++ b/lib/Target/SystemZ/InstPrinter/LLVMBuild.txt
@@ -0,0 +1,23 @@
+;===- ./lib/Target/SystemZ/InstPrinter/LLVMBuild.txt -----------*- Conf -*--===;
+;
+;                     The LLVM Compiler Infrastructure
+;
+; This file is distributed under the University of Illinois Open Source
+; License. See LICENSE.TXT for details.
+;
+;===------------------------------------------------------------------------===;
+;
+; This is an LLVMBuild description file for the components in this subdirectory.
+;
+; For more information on the LLVMBuild system, please see:
+;
+;   http://llvm.org/docs/LLVMBuild.html
+;
+;===------------------------------------------------------------------------===;
+
+[component_0]
+type = Library
+name = SystemZAsmPrinter
+parent = SystemZ
+required_libraries = MC Support
+add_to_library_groups = SystemZ
diff --git a/lib/Target/SystemZ/InstPrinter/Makefile b/lib/Target/SystemZ/InstPrinter/Makefile
new file mode 100644
index 0000000..3ba8126
--- /dev/null
+++ b/lib/Target/SystemZ/InstPrinter/Makefile
@@ -0,0 +1,16 @@
+##===- lib/Target/SystemZ/AsmPrinter/Makefile --------------*- Makefile -*-===##
+#
+#                     The LLVM Compiler Infrastructure
+#
+# This file is distributed under the University of Illinois Open Source
+# License. See LICENSE.TXT for details.
+#
+##===----------------------------------------------------------------------===##
+
+LEVEL = ../../../..
+LIBRARYNAME = LLVMSystemZAsmPrinter
+
+# Hack: we need to include 'main' mips target directory to grab private headers
+CPP.Flags += -I$(PROJ_OBJ_DIR)/.. -I$(PROJ_SRC_DIR)/..
+
+include $(LEVEL)/Makefile.common
diff --git a/lib/Target/SystemZ/InstPrinter/SystemZInstPrinter.cpp b/lib/Target/SystemZ/InstPrinter/SystemZInstPrinter.cpp
new file mode 100644
index 0000000..d73cf49
--- /dev/null
+++ b/lib/Target/SystemZ/InstPrinter/SystemZInstPrinter.cpp
@@ -0,0 +1,150 @@
+//===-- SystemZInstPrinter.cpp - Convert SystemZ 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.
+//
+//===----------------------------------------------------------------------===//
+
+#define DEBUG_TYPE "asm-printer"
+
+#include "SystemZInstPrinter.h"
+#include "llvm/MC/MCExpr.h"
+#include "llvm/MC/MCInstrInfo.h"
+#include "llvm/Support/raw_ostream.h"
+
+using namespace llvm;
+
+#include "SystemZGenAsmWriter.inc"
+
+void SystemZInstPrinter::printAddress(unsigned Base, int64_t Disp,
+                                      unsigned Index, raw_ostream &O) {
+  O << Disp;
+  if (Base) {
+    O << '(';
+    if (Index)
+      O << '%' << getRegisterName(Index) << ',';
+    O << '%' << getRegisterName(Base) << ')';
+  } else
+    assert(!Index && "Shouldn't have an index without a base");
+}
+
+void SystemZInstPrinter::printOperand(const MCOperand &MO, raw_ostream &O) {
+  if (MO.isReg())
+    O << '%' << getRegisterName(MO.getReg());
+  else if (MO.isImm())
+    O << MO.getImm();
+  else if (MO.isExpr())
+    O << *MO.getExpr();
+  else
+    llvm_unreachable("Invalid operand");
+}
+
+void SystemZInstPrinter::printInst(const MCInst *MI, raw_ostream &O,
+                                   StringRef Annot) {
+  printInstruction(MI, O);
+  printAnnotation(O, Annot);
+}
+
+void SystemZInstPrinter::printRegName(raw_ostream &O, unsigned RegNo) const {
+  O << '%' << getRegisterName(RegNo);
+}
+
+void SystemZInstPrinter::printU4ImmOperand(const MCInst *MI, int OpNum,
+                                           raw_ostream &O) {
+  int64_t Value = MI->getOperand(OpNum).getImm();
+  assert(isUInt<4>(Value) && "Invalid u4imm argument");
+  O << Value;
+}
+
+void SystemZInstPrinter::printU6ImmOperand(const MCInst *MI, int OpNum,
+                                           raw_ostream &O) {
+  int64_t Value = MI->getOperand(OpNum).getImm();
+  assert(isUInt<6>(Value) && "Invalid u6imm argument");
+  O << Value;
+}
+
+void SystemZInstPrinter::printS8ImmOperand(const MCInst *MI, int OpNum,
+                                           raw_ostream &O) {
+  int64_t Value = MI->getOperand(OpNum).getImm();
+  assert(isInt<8>(Value) && "Invalid s8imm argument");
+  O << Value;
+}
+
+void SystemZInstPrinter::printU8ImmOperand(const MCInst *MI, int OpNum,
+                                           raw_ostream &O) {
+  int64_t Value = MI->getOperand(OpNum).getImm();
+  assert(isUInt<8>(Value) && "Invalid u8imm argument");
+  O << Value;
+}
+
+void SystemZInstPrinter::printS16ImmOperand(const MCInst *MI, int OpNum,
+                                            raw_ostream &O) {
+  int64_t Value = MI->getOperand(OpNum).getImm();
+  assert(isInt<16>(Value) && "Invalid s16imm argument");
+  O << Value;
+}
+
+void SystemZInstPrinter::printU16ImmOperand(const MCInst *MI, int OpNum,
+                                            raw_ostream &O) {
+  int64_t Value = MI->getOperand(OpNum).getImm();
+  assert(isUInt<16>(Value) && "Invalid u16imm argument");
+  O << Value;
+}
+
+void SystemZInstPrinter::printS32ImmOperand(const MCInst *MI, int OpNum,
+                                            raw_ostream &O) {
+  int64_t Value = MI->getOperand(OpNum).getImm();
+  assert(isInt<32>(Value) && "Invalid s32imm argument");
+  O << Value;
+}
+
+void SystemZInstPrinter::printU32ImmOperand(const MCInst *MI, int OpNum,
+                                            raw_ostream &O) {
+  int64_t Value = MI->getOperand(OpNum).getImm();
+  assert(isUInt<32>(Value) && "Invalid u32imm argument");
+  O << Value;
+}
+
+void SystemZInstPrinter::printAccessRegOperand(const MCInst *MI, int OpNum,
+                                               raw_ostream &O) {
+  uint64_t Value = MI->getOperand(OpNum).getImm();
+  assert(Value < 16 && "Invalid access register number");
+  O << "%a" << (unsigned int)Value;
+}
+
+void SystemZInstPrinter::printCallOperand(const MCInst *MI, int OpNum,
+                                          raw_ostream &O) {
+  printOperand(MI, OpNum, O);
+  O << "@PLT";
+}
+
+void SystemZInstPrinter::printOperand(const MCInst *MI, int OpNum,
+                                      raw_ostream &O) {
+  printOperand(MI->getOperand(OpNum), O);
+}
+
+void SystemZInstPrinter::printBDAddrOperand(const MCInst *MI, int OpNum,
+                                            raw_ostream &O) {
+  printAddress(MI->getOperand(OpNum).getReg(),
+               MI->getOperand(OpNum + 1).getImm(), 0, O);
+}
+
+void SystemZInstPrinter::printBDXAddrOperand(const MCInst *MI, int OpNum,
+                                             raw_ostream &O) {
+  printAddress(MI->getOperand(OpNum).getReg(),
+               MI->getOperand(OpNum + 1).getImm(),
+               MI->getOperand(OpNum + 2).getReg(), O);
+}
+
+void SystemZInstPrinter::printCond4Operand(const MCInst *MI, int OpNum,
+                                           raw_ostream &O) {
+  static const char *const CondNames[] = {
+    "o", "h", "nle", "l", "nhe", "lh", "ne",
+    "e", "nlh", "he", "nl", "le", "nh", "no"
+  };
+  uint64_t Imm = MI->getOperand(OpNum).getImm();
+  assert(Imm > 0 && Imm < 15 && "Invalid condition");
+  O << CondNames[Imm - 1];
+}
diff --git a/lib/Target/SystemZ/InstPrinter/SystemZInstPrinter.h b/lib/Target/SystemZ/InstPrinter/SystemZInstPrinter.h
new file mode 100644
index 0000000..b82e79d
--- /dev/null
+++ b/lib/Target/SystemZ/InstPrinter/SystemZInstPrinter.h
@@ -0,0 +1,68 @@
+//==- SystemZInstPrinter.h - Convert SystemZ MCInst to assembly --*- C++ -*-==//
+//
+//                     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 SystemZ MCInst to a .s file.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_SYSTEMZINSTPRINTER_H
+#define LLVM_SYSTEMZINSTPRINTER_H
+
+#include "llvm/MC/MCInstPrinter.h"
+#include "llvm/Support/Compiler.h"
+
+namespace llvm {
+class MCOperand;
+
+class SystemZInstPrinter : public MCInstPrinter {
+public:
+  SystemZInstPrinter(const MCAsmInfo &MAI, const MCInstrInfo &MII,
+                     const MCRegisterInfo &MRI)
+    : MCInstPrinter(MAI, MII, MRI) {}
+
+  // Automatically generated by tblgen.
+  void printInstruction(const MCInst *MI, raw_ostream &O);
+  static const char *getRegisterName(unsigned RegNo);
+
+  // Print an address with the given base, displacement and index.
+  static void printAddress(unsigned Base, int64_t Disp, unsigned Index,
+                           raw_ostream &O);
+
+  // Print the given operand.
+  static void printOperand(const MCOperand &MO, raw_ostream &O);
+
+  // Override MCInstPrinter.
+  virtual void printRegName(raw_ostream &O, unsigned RegNo) const
+    LLVM_OVERRIDE;
+  virtual void printInst(const MCInst *MI, raw_ostream &O, StringRef Annot)
+    LLVM_OVERRIDE;
+
+private:
+  // Print various types of operand.
+  void printOperand(const MCInst *MI, int OpNum, raw_ostream &O);
+  void printBDAddrOperand(const MCInst *MI, int OpNum, raw_ostream &O);
+  void printBDXAddrOperand(const MCInst *MI, int OpNum, raw_ostream &O);
+  void printU4ImmOperand(const MCInst *MI, int OpNum, raw_ostream &O);
+  void printU6ImmOperand(const MCInst *MI, int OpNum, raw_ostream &O);
+  void printS8ImmOperand(const MCInst *MI, int OpNum, raw_ostream &O);
+  void printU8ImmOperand(const MCInst *MI, int OpNum, raw_ostream &O);
+  void printS16ImmOperand(const MCInst *MI, int OpNum, raw_ostream &O);
+  void printU16ImmOperand(const MCInst *MI, int OpNum, raw_ostream &O);
+  void printS32ImmOperand(const MCInst *MI, int OpNum, raw_ostream &O);
+  void printU32ImmOperand(const MCInst *MI, int OpNum, raw_ostream &O);
+  void printCallOperand(const MCInst *MI, int OpNum, raw_ostream &O);
+  void printAccessRegOperand(const MCInst *MI, int OpNum, raw_ostream &O);
+
+  // Print the mnemonic for a condition-code mask ("ne", "lh", etc.)
+  // This forms part of the instruction name rather than the operand list.
+  void printCond4Operand(const MCInst *MI, int OpNum, raw_ostream &O);
+};
+} // end namespace llvm
+
+#endif