1 files changed, 56 insertions, 7 deletions

diff --git a/lib/Target/MSP430/AsmPrinter/MSP430AsmPrinter.cpp b/lib/Target/MSP430/AsmPrinter/MSP430AsmPrinter.cpp
index 852019f..ace358e 100644
--- a/lib/Target/MSP430/AsmPrinter/MSP430AsmPrinter.cpp
+++ b/lib/Target/MSP430/AsmPrinter/MSP430AsmPrinter.cpp
@@ -15,7 +15,9 @@
 #define DEBUG_TYPE "asm-printer"
 #include "MSP430.h"
 #include "MSP430InstrInfo.h"
+#include "MSP430InstPrinter.h"
 #include "MSP430MCAsmInfo.h"
+#include "MSP430MCInstLower.h"
 #include "MSP430TargetMachine.h"
 #include "llvm/Constants.h"
 #include "llvm/DerivedTypes.h"
@@ -26,12 +28,14 @@
 #include "llvm/CodeGen/MachineFunctionPass.h"
 #include "llvm/CodeGen/MachineConstantPool.h"
 #include "llvm/CodeGen/MachineInstr.h"
+#include "llvm/MC/MCInst.h"
 #include "llvm/MC/MCStreamer.h"
 #include "llvm/MC/MCSymbol.h"
 #include "llvm/Target/TargetData.h"
 #include "llvm/Target/TargetLoweringObjectFile.h"
 #include "llvm/Target/TargetRegistry.h"
 #include "llvm/ADT/Statistic.h"
+#include "llvm/Support/CommandLine.h"
 #include "llvm/Support/Compiler.h"
 #include "llvm/Support/FormattedStream.h"
 #include "llvm/Support/Mangler.h"
@@ -41,6 +45,10 @@ using namespace llvm;
 
 STATISTIC(EmittedInsts, "Number of machine instrs printed");
 
+static cl::opt<bool>
+EnableMCInst("enable-msp430-mcinst-printer", cl::Hidden,
+             cl::desc("enable experimental mcinst gunk in the msp430 backend"));
+
 namespace {
   class VISIBILITY_HIDDEN MSP430AsmPrinter : public AsmPrinter {
   public:
@@ -52,8 +60,14 @@ namespace {
       return "MSP430 Assembly Printer";
     }
 
+    void printMCInst(const MCInst *MI) {
+      MSP430InstPrinter(O, *MAI).printInstruction(MI);
+    }
     void printOperand(const MachineInstr *MI, int OpNum,
                       const char* Modifier = 0);
+    void printPCRelImmOperand(const MachineInstr *MI, int OpNum) {
+      printOperand(MI, OpNum);
+    }
     void printSrcMemOperand(const MachineInstr *MI, int OpNum,
                             const char* Modifier = 0);
     void printCCOperand(const MachineInstr *MI, int OpNum);
@@ -67,6 +81,7 @@ namespace {
     bool PrintAsmMemoryOperand(const MachineInstr *MI,
                                unsigned OpNo, unsigned AsmVariant,
                                const char *ExtraCode);
+    void printInstructionThroughMCStreamer(const MachineInstr *MI);
 
     void emitFunctionHeader(const MachineFunction &MF);
     bool runOnMachineFunction(MachineFunction &F);
@@ -148,7 +163,11 @@ void MSP430AsmPrinter::printMachineInstruction(const MachineInstr *MI) {
   processDebugLoc(MI, true);
 
   // Call the autogenerated instruction printer routines.
-  printInstruction(MI);
+  if (EnableMCInst) {
+    printInstructionThroughMCStreamer(MI);
+  } else {
+    printInstruction(MI);
+  }
 
   if (VerboseAsm && !MI->getDebugLoc().isUnknown())
     EmitComments(*MI);
@@ -231,22 +250,22 @@ void MSP430AsmPrinter::printCCOperand(const MachineInstr *MI, int OpNum) {
   default:
    llvm_unreachable("Unsupported CC code");
    break;
-  case MSP430::COND_E:
+  case MSP430CC::COND_E:
    O << "eq";
    break;
-  case MSP430::COND_NE:
+  case MSP430CC::COND_NE:
    O << "ne";
    break;
-  case MSP430::COND_HS:
+  case MSP430CC::COND_HS:
    O << "hs";
    break;
-  case MSP430::COND_LO:
+  case MSP430CC::COND_LO:
    O << "lo";
    break;
-  case MSP430::COND_GE:
+  case MSP430CC::COND_GE:
    O << "ge";
    break;
-  case MSP430::COND_L:
+  case MSP430CC::COND_L:
    O << 'l';
    break;
   }
@@ -275,6 +294,36 @@ bool MSP430AsmPrinter::PrintAsmMemoryOperand(const MachineInstr *MI,
   return false;
 }
 
+//===----------------------------------------------------------------------===//
+void MSP430AsmPrinter::printInstructionThroughMCStreamer(const MachineInstr *MI)
+{
+
+  MSP430MCInstLower MCInstLowering(OutContext, *Mang, *this);
+
+  switch (MI->getOpcode()) {
+  case TargetInstrInfo::DBG_LABEL:
+  case TargetInstrInfo::EH_LABEL:
+  case TargetInstrInfo::GC_LABEL:
+    printLabel(MI);
+    return;
+  case TargetInstrInfo::KILL:
+    return;
+  case TargetInstrInfo::INLINEASM:
+    O << '\t';
+    printInlineAsm(MI);
+    return;
+  case TargetInstrInfo::IMPLICIT_DEF:
+    printImplicitDef(MI);
+    return;
+  default: break;
+  }
+
+  MCInst TmpInst;
+  MCInstLowering.Lower(MI, TmpInst);
+
+  printMCInst(&TmpInst);
+}
+
 // Force static initialization.
 extern "C" void LLVMInitializeMSP430AsmPrinter() {
   RegisterAsmPrinter<MSP430AsmPrinter> X(TheMSP430Target);