remove the MSIL backend. It isn't maintained, is buggy, has no testcases

and hasn't kept up with ToT.  Approved by Anton.

llvm-svn: 112375

autoconf/configure.ac

@@ -543,13 +543,13 @@ TARGETS_TO_BUILD=""
 AC_ARG_ENABLE([targets],AS_HELP_STRING([--enable-targets],
     [Build specific host targets: all or target1,target2,... Valid targets are:
      host, x86, x86_64, sparc, powerpc, alpha, arm, mips, spu, pic16,
-     xcore, msp430, systemz, blackfin, cbe, msil, and cpp (default=all)]),,
+     xcore, msp430, systemz, blackfin, cbe, and cpp (default=all)]),,
     enableval=all)
 if test "$enableval" = host-only ; then
   enableval=host
 fi
 case "$enableval" in
-  all) TARGETS_TO_BUILD="X86 Sparc PowerPC Alpha ARM Mips CellSPU PIC16 XCore MSP430 SystemZ Blackfin CBackend MSIL CppBackend MBlaze" ;;
+  all) TARGETS_TO_BUILD="X86 Sparc PowerPC Alpha ARM Mips CellSPU PIC16 XCore MSP430 SystemZ Blackfin CBackend CppBackend MBlaze" ;;
   *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
       case "$a_target" in
         x86)      TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
@@ -566,7 +566,6 @@ case "$enableval" in
         systemz)  TARGETS_TO_BUILD="SystemZ $TARGETS_TO_BUILD" ;;
         blackfin) TARGETS_TO_BUILD="Blackfin $TARGETS_TO_BUILD" ;;
         cbe)      TARGETS_TO_BUILD="CBackend $TARGETS_TO_BUILD" ;;
-        msil)     TARGETS_TO_BUILD="MSIL $TARGETS_TO_BUILD" ;;
         cpp)      TARGETS_TO_BUILD="CppBackend $TARGETS_TO_BUILD" ;;
         mblaze)   TARGETS_TO_BUILD="MBlaze $TARGETS_TO_BUILD" ;;
         host) case "$llvm_cv_target_arch" in

configure

@@ -1414,7 +1414,7 @@ Optional Features:
   --enable-targets        Build specific host targets: all or
                           target1,target2,... Valid targets are: host, x86,
                           x86_64, sparc, powerpc, alpha, arm, mips, spu,
-                          pic16, xcore, msp430, systemz, blackfin, cbe, msil,
+                          pic16, xcore, msp430, systemz, blackfin, cbe, 
                           and cpp (default=all)
   --enable-cbe-printf-a   Enable C Backend output with hex floating point via
                           %a (default is YES)
@@ -4955,7 +4955,7 @@ if test "$enableval" = host-only ; then
   enableval=host
 fi
 case "$enableval" in
-  all) TARGETS_TO_BUILD="X86 Sparc PowerPC Alpha ARM Mips CellSPU PIC16 XCore MSP430 SystemZ Blackfin CBackend MSIL CppBackend MBlaze" ;;
+  all) TARGETS_TO_BUILD="X86 Sparc PowerPC Alpha ARM Mips CellSPU PIC16 XCore MSP430 SystemZ Blackfin CBackend CppBackend MBlaze" ;;
   *)for a_target in `echo $enableval|sed -e 's/,/ /g' ` ; do
       case "$a_target" in
         x86)      TARGETS_TO_BUILD="X86 $TARGETS_TO_BUILD" ;;
@@ -4972,7 +4972,6 @@ case "$enableval" in
         systemz)  TARGETS_TO_BUILD="SystemZ $TARGETS_TO_BUILD" ;;
         blackfin) TARGETS_TO_BUILD="Blackfin $TARGETS_TO_BUILD" ;;
         cbe)      TARGETS_TO_BUILD="CBackend $TARGETS_TO_BUILD" ;;
-        msil)     TARGETS_TO_BUILD="MSIL $TARGETS_TO_BUILD" ;;
         cpp)      TARGETS_TO_BUILD="CppBackend $TARGETS_TO_BUILD" ;;
         mblaze)   TARGETS_TO_BUILD="MBlaze $TARGETS_TO_BUILD" ;;
         host) case "$llvm_cv_target_arch" in

docs/ReleaseNotes.html

@@ -68,7 +68,6 @@ Almost dead code.
   lib/Transforms/IPO/MergeFunctions.cpp => consider for 2.8.
   llvm/Analysis/PointerTracking.h => Edwin wants this, consider for 2.8.
   GEPSplitterPass
-  MSIL backend?
 -->
  
    
@@ -77,6 +76,7 @@ Almost dead code.
   strong phi elim
   llvm.dbg.value: variable debug info for optimized code
   loop dependence analysis
+  TBAA
  -->
 
  <!-- for announcement email:
@@ -489,8 +489,9 @@ on LLVM 2.7, this section lists some "gotchas" that you may run into upgrading
 from the previous release.</p>
 
 <ul>
-
+<li>MSIL Backend removed.</li>
-<li>.</li>
+<li>ABCD and SSI passes removed.</li>
+<li>'Union' LLVM IR feature removed.</li>
 </ul>
 
 <p>In addition, many APIs have changed in this release.  Some of the major LLVM
@@ -575,7 +576,7 @@ components, please contact us on the <a
 href="http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev">LLVMdev list</a>.</p>
 
 <ul>
-<li>The MSIL, Alpha, SPU, MIPS, PIC16, Blackfin, MSP430, SystemZ and MicroBlaze
+<li>The Alpha, SPU, MIPS, PIC16, Blackfin, MSP430, SystemZ and MicroBlaze
     backends are experimental.</li>
 <li><tt>llc</tt> "<tt>-filetype=asm</tt>" (the default) is the only
     supported value for this option.  XXX Update me</li>

lib/Target/MSIL/CMakeLists.txt

@@ -1,3 +0,0 @@
-add_llvm_target(MSIL
-  MSILWriter.cpp
-  )

lib/Target/MSIL/MSILWriter.h

@@ -1,258 +0,0 @@
-//===-- MSILWriter.h - TargetMachine for the MSIL ---------------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file declares the MSILWriter that is used by the MSIL.
-//
-//===----------------------------------------------------------------------===//
-#ifndef MSILWRITER_H
-#define MSILWRITER_H
-
-#include "llvm/CallingConv.h"
-#include "llvm/Constants.h"
-#include "llvm/Module.h"
-#include "llvm/Instructions.h"
-#include "llvm/IntrinsicInst.h"
-#include "llvm/Pass.h"
-#include "llvm/PassManager.h"
-#include "llvm/ADT/StringRef.h"
-#include "llvm/Analysis/FindUsedTypes.h"
-#include "llvm/Analysis/LoopInfo.h"
-#include "llvm/Support/FormattedStream.h"
-#include "llvm/Support/GetElementPtrTypeIterator.h"
-#include "llvm/Target/TargetData.h"
-#include "llvm/Target/TargetMachine.h"
-
-namespace llvm {
-  extern Target TheMSILTarget;
-
-  class MSILModule : public ModulePass {
-    Module *ModulePtr;
-    const std::set<const Type *>*& UsedTypes;
-    const TargetData*& TD;
-
-  public:
-    static char ID;
-    MSILModule(const std::set<const Type *>*& _UsedTypes,
-               const TargetData*& _TD)
-      : ModulePass(ID), UsedTypes(_UsedTypes), TD(_TD) {}
-
-    void getAnalysisUsage(AnalysisUsage &AU) const {
-      AU.addRequired<FindUsedTypes>();
-      AU.addRequired<TargetData>();
-    }
-
-    virtual const char *getPassName() const {
-      return "MSIL backend definitions";
-    }
-
-    virtual bool runOnModule(Module &M);
-
-  };
-
-  class MSILWriter : public FunctionPass {
-    struct StaticInitializer {
-      const Constant* constant;
-      uint64_t offset;
-      
-      StaticInitializer()
-        : constant(0), offset(0) {}
-
-      StaticInitializer(const Constant* _constant, uint64_t _offset)
-        : constant(_constant), offset(_offset) {} 
-    };
-
-    uint64_t UniqID;
-
-    uint64_t getUniqID() {
-      return ++UniqID;
-    }
-
-  public:
-    formatted_raw_ostream &Out;
-    Module* ModulePtr;
-    const TargetData* TD;
-    LoopInfo *LInfo;
-    std::vector<StaticInitializer>* InitListPtr;
-    std::map<const GlobalVariable*,std::vector<StaticInitializer> >
-      StaticInitList;
-    const std::set<const Type *>* UsedTypes;
-    static char ID;
-    DenseMap<const Value*, unsigned> AnonValueNumbers;
-    unsigned NextAnonValueNumber;
-
-    MSILWriter(formatted_raw_ostream &o) : FunctionPass(ID), Out(o),
-         NextAnonValueNumber(0) {
-      UniqID = 0;
-    }
-
-    enum ValueType {
-      UndefVT,
-      GlobalVT,
-      InternalVT,
-      ArgumentVT,
-      LocalVT,
-      ConstVT,
-      ConstExprVT
-    };
-
-    bool isVariable(ValueType V) {
-      return V==GlobalVT || V==InternalVT || V==ArgumentVT || V==LocalVT;
-    }
-
-    bool isConstValue(ValueType V) {
-      return V==ConstVT || V==ConstExprVT;
-    }
-
-    virtual const char *getPassName() const { return "MSIL backend"; }
-
-    void getAnalysisUsage(AnalysisUsage &AU) const {
-      AU.addRequired<LoopInfo>();
-      AU.setPreservesAll();
-    }
-
-    bool runOnFunction(Function &F);
-
-    virtual bool doInitialization(Module &M);
-
-    virtual bool doFinalization(Module &M);
-
-    void printModuleStartup();
-
-    bool isZeroValue(const Value* V);
-
-    std::string getValueName(const Value* V);
-
-    std::string getLabelName(const Value* V);
-
-    std::string getLabelName(const std::string& Name);
-
-    std::string getConvModopt(CallingConv::ID CallingConvID);
-
-    std::string getArrayTypeName(Type::TypeID TyID, const Type* Ty);
-
-    std::string getPrimitiveTypeName(const Type* Ty, bool isSigned);
-
-    std::string getFunctionTypeName(const Type* Ty);
-
-    std::string getPointerTypeName(const Type* Ty);
-
-    std::string getTypeName(const Type* Ty, bool isSigned = false,
-                            bool isNested = false);
-
-    ValueType getValueLocation(const Value* V);
-
-    std::string getTypePostfix(const Type* Ty, bool Expand,
-                               bool isSigned = false);
-
-    void printConvToPtr();
-
-    void printPtrLoad(uint64_t N);
-
-    void printValuePtrLoad(const Value* V);
-
-    void printConstLoad(const Constant* C);
-
-    void printValueLoad(const Value* V);
-
-    void printValueSave(const Value* V);
-
-    void printBinaryInstruction(const char* Name, const Value* Left,
-                                const Value* Right);
-
-    void printSimpleInstruction(const char* Inst, const char* Operand = NULL);
-
-    void printPHICopy(const BasicBlock* Src, const BasicBlock* Dst);
-
-    void printBranchToBlock(const BasicBlock* CurrBB,
-                            const BasicBlock* TrueBB,
-                            const BasicBlock* FalseBB);
-
-    void printBranchInstruction(const BranchInst* Inst);
-
-    void printSelectInstruction(const Value* Cond, const Value* VTrue,
-                                const Value* VFalse);
-
-    void printIndirectLoad(const Value* V);
-
-    void printIndirectSave(const Value* Ptr, const Value* Val);
-
-    void printIndirectSave(const Type* Ty);
-
-    void printCastInstruction(unsigned int Op, const Value* V,
-                              const Type* Ty, const Type* SrcTy=0);
-
-    void printGepInstruction(const Value* V, gep_type_iterator I,
-                             gep_type_iterator E);
-
-    std::string getCallSignature(const FunctionType* Ty,
-                                 const Instruction* Inst,
-                                 std::string Name);
-
-    void printFunctionCall(const Value* FnVal, const Instruction* Inst);
-
-    void printIntrinsicCall(const IntrinsicInst* Inst);
-
-    void printCallInstruction(const Instruction* Inst);
-
-    void printICmpInstruction(unsigned Predicate, const Value* Left,
-                              const Value* Right);
-
-    void printFCmpInstruction(unsigned Predicate, const Value* Left,
-                              const Value* Right);
-
-    void printInvokeInstruction(const InvokeInst* Inst);
-
-    void printSwitchInstruction(const SwitchInst* Inst);
-
-    void printVAArgInstruction(const VAArgInst* Inst);
-
-    void printAllocaInstruction(const AllocaInst* Inst);
-
-    void printInstruction(const Instruction* Inst);
-
-    void printLoop(const Loop* L);
-
-    void printBasicBlock(const BasicBlock* BB);
-    
-    void printLocalVariables(const Function& F);
-
-    void printFunctionBody(const Function& F);
-
-    void printConstantExpr(const ConstantExpr* CE);
-
-    void printStaticInitializerList();
-
-    void printFunction(const Function& F);
-
-    void printDeclarations(const TypeSymbolTable& ST);
-
-    unsigned int getBitWidth(const Type* Ty);
-
-    void printStaticConstant(const Constant* C, uint64_t& Offset);
-
-    void printStaticInitializer(const Constant* C, const std::string& Name);
-
-    void printVariableDefinition(const GlobalVariable* G);
-
-    void printGlobalVariables();
-
-    const char* getLibraryName(const Function* F);
-
-    const char* getLibraryName(const GlobalVariable* GV); 
-    
-    const char* getLibraryForSymbol(StringRef Name, bool isFunction,
-                                    CallingConv::ID CallingConv);
-
-    void printExternals();
-  };
-
-}
-
-#endif
-

lib/Target/MSIL/Makefile

@@ -1,16 +0,0 @@
-##===- lib/Target/MSIL/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 = LLVMMSIL
-DIRS = TargetInfo
-
-include $(LEVEL)/Makefile.common
-
-CompileCommonOpts := $(CompileCommonOpts) -Wno-format

lib/Target/MSIL/README.TXT

@@ -1,26 +0,0 @@
-//===---------------------------------------------------------------------===// 
-
-Vector instructions support.
-
-ShuffleVector
-ExtractElement
-InsertElement
-
-//===---------------------------------------------------------------------===// 
-
-Add "OpaqueType" type.
-
-//===---------------------------------------------------------------------===// 
-
-"switch" instruction emulation with CLI "switch" instruction.
-
-//===---------------------------------------------------------------------===// 
-
-Write linker for external function, because function export need to know 
-dynamic library where function located.
-
-.method static hidebysig pinvokeimpl("msvcrt.dll" cdecl)
-    void free(void*) preservesig {}
-
-
-

lib/Target/MSIL/TargetInfo/CMakeLists.txt

@@ -1,6 +0,0 @@
-include_directories( ${CMAKE_CURRENT_BINARY_DIR}/.. ${CMAKE_CURRENT_SOURCE_DIR}/.. )
-
-add_llvm_library(LLVMMSILInfo
-  MSILTargetInfo.cpp
-  )
-

lib/Target/MSIL/TargetInfo/MSILTargetInfo.cpp

@@ -1,26 +0,0 @@
-//===-- MSILTargetInfo.cpp - MSIL Target Implementation -------------------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "MSILWriter.h"
-#include "llvm/Module.h"
-#include "llvm/Target/TargetRegistry.h"
-using namespace llvm;
-
-Target llvm::TheMSILTarget;
-
-static unsigned MSIL_TripleMatchQuality(const std::string &TT) {
-  // This class always works, but shouldn't be the default in most cases.
-  return 1;
-}
-
-extern "C" void LLVMInitializeMSILTargetInfo() { 
-  TargetRegistry::RegisterTarget(TheMSILTarget, "msil",    
-                                  "MSIL backend",
-                                  &MSIL_TripleMatchQuality);
-}

lib/Target/MSIL/TargetInfo/Makefile

@@ -1,15 +0,0 @@
-##===- lib/Target/MSIL/TargetInfo/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 = LLVMMSILInfo
-
-# Hack: we need to include 'main' target directory to grab private headers
-CPPFLAGS = -I$(PROJ_OBJ_DIR)/.. -I$(PROJ_SRC_DIR)/..
-
-include $(LEVEL)/Makefile.common