Dummy MSP430 backend
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70694 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/MSP430/MSP430AsmPrinter.cpp b/lib/Target/MSP430/MSP430AsmPrinter.cpp
new file mode 100644
index 0000000..a9e119f
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+++ b/lib/Target/MSP430/MSP430AsmPrinter.cpp
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+//===-- MSP430AsmPrinter.cpp - MSP430 LLVM assembly writer ------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file contains a printer that converts from our internal representation
+// of machine-dependent LLVM code to the MSP430 assembly language.
+//
+//===----------------------------------------------------------------------===//
+
+#define DEBUG_TYPE "asm-printer"
+#include "MSP430.h"
+#include "MSP430InstrInfo.h"
+#include "MSP430TargetMachine.h"
+#include "llvm/Constants.h"
+#include "llvm/DerivedTypes.h"
+#include "llvm/Module.h"
+#include "llvm/CodeGen/AsmPrinter.h"
+#include "llvm/CodeGen/DwarfWriter.h"
+#include "llvm/CodeGen/MachineModuleInfo.h"
+#include "llvm/CodeGen/MachineFunctionPass.h"
+#include "llvm/CodeGen/MachineConstantPool.h"
+#include "llvm/CodeGen/MachineInstr.h"
+#include "llvm/Target/TargetAsmInfo.h"
+#include "llvm/Target/TargetData.h"
+#include "llvm/ADT/Statistic.h"
+#include "llvm/Support/Compiler.h"
+#include "llvm/Support/Mangler.h"
+#include "llvm/Support/raw_ostream.h"
+
+using namespace llvm;
+
+STATISTIC(EmittedInsts, "Number of machine instrs printed");
+
+namespace {
+ class VISIBILITY_HIDDEN MSP430AsmPrinter : public AsmPrinter {
+ public:
+ MSP430AsmPrinter(raw_ostream &O, MSP430TargetMachine &TM,
+ const TargetAsmInfo *TAI, bool Fast, bool Verbose)
+ : AsmPrinter(O, TM, TAI, Fast, Verbose) {}
+
+ virtual const char *getPassName() const {
+ return "MSP430 Assembly Printer";
+ }
+
+ bool printInstruction(const MachineInstr *MI); // autogenerated.
+ void printMachineInstruction(const MachineInstr * MI);
+ bool runOnMachineFunction(MachineFunction &F);
+ bool doInitialization(Module &M);
+ bool doFinalization(Module &M);
+
+ void getAnalysisUsage(AnalysisUsage &AU) const {
+ AsmPrinter::getAnalysisUsage(AU);
+ AU.setPreservesAll();
+ }
+ };
+} // end of anonymous namespace
+
+#include "MSP430GenAsmWriter.inc"
+
+/// createMSP430CodePrinterPass - Returns a pass that prints the MSP430
+/// assembly code for a MachineFunction to the given output stream,
+/// using the given target machine description. This should work
+/// regardless of whether the function is in SSA form.
+///
+FunctionPass *llvm::createMSP430CodePrinterPass(raw_ostream &o,
+ MSP430TargetMachine &tm,
+ bool fast, bool verbose) {
+ return new MSP430AsmPrinter(o, tm, tm.getTargetAsmInfo(), fast, verbose);
+}
+
+bool MSP430AsmPrinter::doInitialization(Module &M) {
+ Mang = new Mangler(M, "", TAI->getPrivateGlobalPrefix());
+ return false; // success
+}
+
+
+bool MSP430AsmPrinter::doFinalization(Module &M) {
+ return AsmPrinter::doFinalization(M);
+}
+
+bool MSP430AsmPrinter::runOnMachineFunction(MachineFunction &F) {
+ // We didn't modify anything
+ return false;
+}
+
+void MSP430AsmPrinter::printMachineInstruction(const MachineInstr * MI) {
+ ++EmittedInsts;
+
+ // Call the autogenerated instruction printer routines.
+ if (printInstruction(MI))
+ return;
+
+ assert(0 && "Should not happen");
+}