Remove dead code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32157 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/llvm/Assembly/AutoUpgrade.h b/include/llvm/Assembly/AutoUpgrade.h
deleted file mode 100644 (file)
index 70c29ab..0000000
--- a/include/llvm/Assembly/AutoUpgrade.h
+++ /dev/null
@@ -1,61 +0,0 @@
-//===-- llvm/Assembly/AutoUpgrade.h - AutoUpgrade Helpers --------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file was developed by Reid Spencer is distributed under the University 
-// of Illinois Open Source License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-//  These functions are implemented by the lib/VMCore/AutoUpgrade.cpp.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_ASSEMBLY_AUTOUPGRADE_H
-#define LLVM_ASSEMBLY_AUTOUPGRADE_H
-
-#include <string>
-#include <vector>
-
-namespace llvm {
-  class Function;
-  class CallInst;
-  class Instruction;
-  class Value;
-  class BasicBlock;
-
-  /// This function inspects the Function \p F to see if it is an old overloaded
-  /// intrinsic. If it is, the Function's name is changed to add a suffix that
-  /// indicates the kind of arguments or result that it accepts. In LLVM release
-  /// 1.7, the overloading of intrinsic functions was replaced with separate
-  /// functions for each of the various argument sizes. This function implements
-  /// the auto-upgrade feature from the old overloaded names to the new
-  /// non-overloaded names. 
-  /// @param F The Function to potentially auto-upgrade.
-  /// @returns A corrected version of F, or 0 if no change necessary
-  /// @brief Remove overloaded intrinsic function names.
-  Function* UpgradeIntrinsicFunction(Function* F);
-
-  /// In LLVM 1.7, the overloading of intrinsic functions was replaced with
-  /// separate functions for each of the various argument sizes. This function
-  /// implements the auto-upgrade feature from old overloaded names to the new
-  /// non-overloaded names. This function inspects the CallInst \p CI to see 
-  /// if it is a call to an old overloaded intrinsic. If it is, a new CallInst 
-  /// is created that uses the correct Function and possibly casts the 
-  /// argument and result to an unsigned type.
-  /// @brief Get replacement instruction for overloaded intrinsic function call.
-  void UpgradeIntrinsicCall(
-    CallInst* CI, ///< The CallInst to potentially auto-upgrade.
-    Function* newF = 0 ///< The new function for the call replacement.
-  );
-
-  /// Upgrade both the function and all the calls made to it, if that function
-  /// needs to be upgraded. This is like a combination of the above two
-  /// functions, UpgradeIntrinsicFunction and UpgradeIntrinsicCall. Note that
-  /// the calls are replaced so this should only be used in a post-processing
-  /// manner (i.e. after all assembly/bytecode has been read).
-  bool UpgradeCallsToIntrinsic(Function* F);
-
-} // End llvm namespace
-
-#endif

diff --git a/lib/VMCore/AutoUpgrade.cpp b/lib/VMCore/AutoUpgrade.cpp
deleted file mode 100644 (file)
index 9f7f818..0000000
--- a/lib/VMCore/AutoUpgrade.cpp
+++ /dev/null
@@ -1,287 +0,0 @@
-//===-- AutoUpgrade.cpp - Implement auto-upgrade helper functions ---------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file was developed by Reid Spencer and is distributed under the 
-// University of Illinois Open Source License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file implements the auto-upgrade helper functions 
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/Assembly/AutoUpgrade.h"
-#include "llvm/Support/Streams.h"
-#include "llvm/Constants.h"
-#include "llvm/DerivedTypes.h"
-#include "llvm/Function.h"
-#include "llvm/Module.h"
-#include "llvm/Instructions.h"
-#include "llvm/Intrinsics.h"
-#include "llvm/SymbolTable.h"
-using namespace llvm;
-
-static Function *getUpgradedUnaryFn(Function *F) {
-  const std::string &Name = F->getName();
-  Module *M = F->getParent();
-  switch (F->getReturnType()->getTypeID()) {
-  default: return 0;
-  case Type::UByteTyID:
-  case Type::SByteTyID:
-    return M->getOrInsertFunction(Name+".i8", 
-                                  Type::UByteTy, Type::UByteTy, NULL);
-  case Type::UShortTyID:
-  case Type::ShortTyID:
-    return M->getOrInsertFunction(Name+".i16", 
-                                  Type::UShortTy, Type::UShortTy, NULL);
-  case Type::UIntTyID:
-  case Type::IntTyID:
-    return M->getOrInsertFunction(Name+".i32", 
-                                  Type::UIntTy, Type::UIntTy, NULL);
-  case Type::ULongTyID:
-  case Type::LongTyID:
-    return M->getOrInsertFunction(Name+".i64",
-                                  Type::ULongTy, Type::ULongTy, NULL);
-  case Type::FloatTyID:
-    return M->getOrInsertFunction(Name+".f32",
-                                  Type::FloatTy, Type::FloatTy, NULL);
-  case Type::DoubleTyID:
-    return M->getOrInsertFunction(Name+".f64",
-                                  Type::DoubleTy, Type::DoubleTy, NULL);
-  }
-}
-
-static Function *getUpgradedIntrinsic(Function *F) {
-  // If there's no function, we can't get the argument type.
-  if (!F) return 0;
-
-  // Get the Function's name.
-  const std::string& Name = F->getName();
-
-  // Quickly eliminate it, if it's not a candidate.
-  if (Name.length() <= 8 || Name[0] != 'l' || Name[1] != 'l' || 
-      Name[2] != 'v' || Name[3] != 'm' || Name[4] != '.')
-    return 0;
-
-  Module *M = F->getParent();
-  switch (Name[5]) {
-  default: break;
-  case 'b':
-    if (Name == "llvm.bswap") return getUpgradedUnaryFn(F);
-    break;
-  case 'c':
-    if (Name == "llvm.ctpop" || Name == "llvm.ctlz" || Name == "llvm.cttz")
-      return getUpgradedUnaryFn(F);
-    break;
-  case 'd':
-    if (Name == "llvm.dbg.stoppoint") {
-      PointerType *ESP =
-                  PointerType::get(StructType::get(std::vector<const Type*>()));
-      if (F->getReturnType() != Type::VoidTy ||
-          F->getFunctionType()->getParamType(2) != ESP) {
-        return M->getOrInsertFunction(Name, Type::VoidTy,
-                                      Type::UIntTy, Type::UIntTy, ESP, NULL);
-      }
-    } else if (Name == "llvm.dbg.func.start") {
-      PointerType *ESP =
-                  PointerType::get(StructType::get(std::vector<const Type*>()));
-      if (F->getReturnType()  != Type::VoidTy ||
-          F->getFunctionType()->getParamType(0) != ESP) {
-        return M->getOrInsertFunction(Name, Type::VoidTy, ESP, NULL);
-      }
-    } else if (Name == "llvm.dbg.region.start") {
-      PointerType *ESP =
-                  PointerType::get(StructType::get(std::vector<const Type*>()));
-      if (F->getReturnType() != Type::VoidTy ||
-          F->getFunctionType()->getParamType(0) != ESP) {
-        return M->getOrInsertFunction(Name, Type::VoidTy,  ESP, NULL);
-      }
-    } else if (Name == "llvm.dbg.region.end") {
-      PointerType *ESP =
-                  PointerType::get(StructType::get(std::vector<const Type*>()));
-      if (F->getReturnType() != Type::VoidTy ||
-          F->getFunctionType()->getParamType(0) != ESP) {
-         return M->getOrInsertFunction(Name, Type::VoidTy,  ESP, NULL);
-      }
-    } else if (Name == "llvm.dbg.declare") {
-      PointerType *ESP =
-                  PointerType::get(StructType::get(std::vector<const Type*>()));
-      if (F->getReturnType() != Type::VoidTy ||
-          F->getFunctionType()->getParamType(0) != ESP ||
-          F->getFunctionType()->getParamType(1) != ESP) {
-        return M->getOrInsertFunction(Name, Type::VoidTy, ESP, ESP, NULL);
-      }
-    }
-    break;
-  case 'i':
-    if (Name == "llvm.isunordered" && F->arg_begin() != F->arg_end()) {
-      if (F->arg_begin()->getType() == Type::FloatTy)
-        return M->getOrInsertFunction(Name+".f32", F->getFunctionType());
-      if (F->arg_begin()->getType() == Type::DoubleTy)
-        return M->getOrInsertFunction(Name+".f64", F->getFunctionType());
-    }
-    break;
-  case 'm':
-    if (Name == "llvm.memcpy" || Name == "llvm.memset" || 
-        Name == "llvm.memmove") {
-      if (F->getFunctionType()->getParamType(2) == Type::UIntTy ||
-          F->getFunctionType()->getParamType(2) == Type::IntTy)
-        return M->getOrInsertFunction(Name+".i32", Type::VoidTy,
-                                      PointerType::get(Type::SByteTy),
-                                      F->getFunctionType()->getParamType(1),
-                                      Type::UIntTy, Type::UIntTy, NULL);
-      if (F->getFunctionType()->getParamType(2) == Type::ULongTy ||
-          F->getFunctionType()->getParamType(2) == Type::LongTy)
-        return M->getOrInsertFunction(Name+".i64", Type::VoidTy,
-                                      PointerType::get(Type::SByteTy),
-                                      F->getFunctionType()->getParamType(1),
-                                      Type::ULongTy, Type::UIntTy, NULL);
-    }
-    break;
-  case 's':
-    if (Name == "llvm.sqrt")
-      return getUpgradedUnaryFn(F);
-    break;
-  }
-  return 0;
-}
-
-// Occasionally upgraded function call site arguments need to be permutated to
-// some new order.  The result of getArgumentPermutation is an array of size 
-// F->getFunctionType()getNumParams() indicating the new operand order.  A value
-// of zero in the array indicates replacing with UndefValue for the arg type.
-// NULL is returned if there is no permutation.  It's assumed that the function
-// name is in the form "llvm.?????"
-static unsigned *getArgumentPermutation(Function* Fn, Function* NewFn) {
-  const std::string& Name = Fn->getName();
-  unsigned N = Fn->getFunctionType()->getNumParams();
-  unsigned M = NewFn->getFunctionType()->getNumParams();
-  
-  switch (Name[5]) {
-  case 'd':
-    if (Name == "llvm.dbg.stoppoint") {
-      static unsigned Permutation[] = { 2, 3, 4 };
-      assert(M == (sizeof(Permutation) / sizeof(unsigned)) &&
-             "Permutation is wrong length");
-      if (N == 4) return Permutation;
-    } else if (Name == "llvm.dbg.region.start") {
-      static unsigned Permutation[] = { 0 };
-      assert(M == (sizeof(Permutation) / sizeof(unsigned)) &&
-             "Permutation is wrong length");
-      if (N == 0) return Permutation;
-    } else if (Name == "llvm.dbg.region.end") {
-      static unsigned Permutation[] = { 0 };
-      assert(M == (sizeof(Permutation) / sizeof(unsigned)) &&
-             "Permutation is wrong length");
-      if (N == 0) return Permutation;
-    } else if (Name == "llvm.dbg.declare") {
-      static unsigned Permutation[] = { 0, 0 };
-      assert(M == (sizeof(Permutation) / sizeof(unsigned)) &&
-             "Permutation is wrong length");
-      if (N == 0) return Permutation;
-    }
-    break;
-  }
-  return NULL;
-}
-
-// UpgradeIntrinsicFunction - Convert overloaded intrinsic function names to
-// their non-overloaded variants by appending the appropriate suffix based on
-// the argument types.
-Function *llvm::UpgradeIntrinsicFunction(Function* F) {
-  // See if its one of the name's we're interested in.
-  if (Function *R = getUpgradedIntrinsic(F)) {
-    if (R->getName() != F->getName())
-      llvm_cerr << "WARNING: change " << F->getName() << " to "
-                << R->getName() << "\n";
-    return R;
-  }
-  return 0;
-}
-
-// CastArg - Perform the appropriate cast of an upgraded argument.
-//
-static Value *CastArg(Value *Arg, const Type *Ty, Instruction *InsertBefore) {
-  if (Constant *C = dyn_cast<Constant>(Arg)) {
-    return ConstantExpr::getCast(C, Ty);
-  } else {
-    return CastInst::createInferredCast(Arg, Ty, "autoupgrade_cast", 
-                                        InsertBefore);
-  }
-}
-
-// UpgradeIntrinsicCall - In the BC reader, change a call to an intrinsic to be
-// a call to an upgraded intrinsic.  We may have to permute the order or promote
-// some arguments with a cast.
-void llvm::UpgradeIntrinsicCall(CallInst *CI, Function *NewFn) {
-  Function *F = CI->getCalledFunction();
-
-  const FunctionType *NewFnTy = NewFn->getFunctionType();
-  std::vector<Value*> Oprnds;
-  
-  unsigned *Permutation = getArgumentPermutation(F, NewFn);
-  unsigned N = NewFnTy->getNumParams();
-
-  if (Permutation) {
-    for (unsigned i = 0; i != N; ++i) {
-      unsigned p = Permutation[i];
-      
-      if (p) {
-        Value *V = CI->getOperand(p);
-        if (V->getType() != NewFnTy->getParamType(i))
-          V = CastArg(V, NewFnTy->getParamType(i), CI);
-        Oprnds.push_back(V);
-      } else
-        Oprnds.push_back(UndefValue::get(NewFnTy->getParamType(i)));
-    }
-  } else if (N) {
-    assert(N == (CI->getNumOperands() - 1) &&
-           "Upgraded function needs permutation");
-    for (unsigned i = 0; i != N; ++i) {
-      Value *V = CI->getOperand(i + 1);
-      if (V->getType() != NewFnTy->getParamType(i))
-        V = CastArg(V, NewFnTy->getParamType(i), CI);
-      Oprnds.push_back(V);
-    }
-  }
-  
-  bool NewIsVoid = NewFn->getReturnType() == Type::VoidTy;
-  
-  CallInst *NewCI = new CallInst(NewFn, Oprnds,
-                                 NewIsVoid ? "" : CI->getName(),
-                                 CI);
-  NewCI->setTailCall(CI->isTailCall());
-  NewCI->setCallingConv(CI->getCallingConv());
-  
-  if (!CI->use_empty()) {
-    if (NewIsVoid) {
-      CI->replaceAllUsesWith(UndefValue::get(CI->getType()));
-    } else {
-      Instruction *RetVal = NewCI;
-      
-      if (F->getReturnType() != NewFn->getReturnType()) {
-        RetVal = 
-          new BitCastInst(NewCI, F->getReturnType(), NewCI->getName(), CI);
-        NewCI->moveBefore(RetVal);
-      }
-      
-      CI->replaceAllUsesWith(RetVal);
-    }
-  }
-  CI->eraseFromParent();
-}
-
-bool llvm::UpgradeCallsToIntrinsic(Function* F) {
-  if (Function* NewFn = UpgradeIntrinsicFunction(F)) {
-    for (Value::use_iterator UI = F->use_begin(), UE = F->use_end();
-         UI != UE; ) {
-      if (CallInst* CI = dyn_cast<CallInst>(*UI++)) 
-        UpgradeIntrinsicCall(CI, NewFn);
-    }
-    if (NewFn != F)
-      F->eraseFromParent();
-    return true;
-  }
-  return false;
-}