[llvm-commits] [llvm] r99399 - in /llvm/trunk: ./ include/llvm/Function.h include/llvm/Instructions.h include/llvm/Support/CallSite.h lib/Analysis/IPA/GlobalsModRef.cpp lib/Bitcode/Writer/BitcodeWriter.cpp lib/Transforms/IPO/DeadArgumentEliminati

Gabor Greif ggreif at gmail.com
Sun Jul 11 02:49:04 PDT 2010


Because those cases are already caught the line before? What survives
is either a CallInst or an InvokeInst and both are safe to be casted
to Instruction.

   Gabor

On 7/11/10, Nick Lewycky <nicholas at mxc.ca> wrote:
> Gabor Greif wrote:
>> Author: ggreif
>> Date: Wed Mar 24 08:21:49 2010
>> New Revision: 99399
>>
>> URL: http://llvm.org/viewvc/llvm-project?rev=99399&view=rev
>> Log:
>> Finally land the InvokeInst operand reordering.
>> I have audited all getOperandNo calls now, fixing
>> hidden assumptions. CallSite related uglyness will
>> be eliminated successively.
>>
>> Note this patch has a long and griveous history,
>> for all the back-and-forths have a look at
>> CallSite.h's log.
>>
>> Modified:
>>      llvm/trunk/   (props changed)
>>      llvm/trunk/include/llvm/Function.h
>>      llvm/trunk/include/llvm/Instructions.h
>>      llvm/trunk/include/llvm/Support/CallSite.h
>>      llvm/trunk/lib/Analysis/IPA/GlobalsModRef.cpp
>>      llvm/trunk/lib/Bitcode/Writer/BitcodeWriter.cpp
>>      llvm/trunk/lib/Transforms/IPO/DeadArgumentElimination.cpp
>>      llvm/trunk/lib/Transforms/IPO/PruneEH.cpp
>>      llvm/trunk/lib/Transforms/Scalar/SCCP.cpp
>>      llvm/trunk/lib/Transforms/Scalar/SimplifyCFGPass.cpp
>>      llvm/trunk/lib/Transforms/Utils/LowerInvoke.cpp
>>      llvm/trunk/lib/VMCore/AsmWriter.cpp
>>      llvm/trunk/lib/VMCore/Function.cpp
>>      llvm/trunk/lib/VMCore/Instructions.cpp
>>      llvm/trunk/lib/VMCore/Verifier.cpp
>>
>> Propchange: llvm/trunk/
>> ------------------------------------------------------------------------------
>>      svn:mergeinfo = /llvm/branches/ggreif/InvokeInst-operands:98645-99398
>>
>> Modified: llvm/trunk/include/llvm/Function.h
>> URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Function.h?rev=99399&r1=99398&r2=99399&view=diff
>> ==============================================================================
>> --- llvm/trunk/include/llvm/Function.h (original)
>> +++ llvm/trunk/include/llvm/Function.h Wed Mar 24 08:21:49 2010
>> @@ -409,8 +409,11 @@
>>     void dropAllReferences();
>>
>>     /// hasAddressTaken - returns true if there are any uses of this
>> function
>> -  /// other than direct calls or invokes to it.
>> -  bool hasAddressTaken() const;
>> +  /// other than direct calls or invokes to it. Optionally passes back
>> the
>> +  /// offending user for diagnostic purposes.
>> +  ///
>> +  bool hasAddressTaken(const User** = 0) const;
>> +
>>   private:
>>     // Shadow Value::setValueSubclassData with a private forwarding method
>> so that
>>     // subclasses cannot accidentally use it.
>>
>> Modified: llvm/trunk/include/llvm/Instructions.h
>> URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Instructions.h?rev=99399&r1=99398&r2=99399&view=diff
>> ==============================================================================
>> --- llvm/trunk/include/llvm/Instructions.h (original)
>> +++ llvm/trunk/include/llvm/Instructions.h Wed Mar 24 08:21:49 2010
>> @@ -2522,32 +2522,31 @@
>>     /// indirect function invocation.
>>     ///
>>     Function *getCalledFunction() const {
>> -    return dyn_cast<Function>(getOperand(0));
>> +    return dyn_cast<Function>(Op<-3>());
>>     }
>>
>>     /// getCalledValue - Get a pointer to the function that is invoked by
>> this
>>     /// instruction
>> -  const Value *getCalledValue() const { return getOperand(0); }
>> -        Value *getCalledValue()       { return getOperand(0); }
>> +  const Value *getCalledValue() const { return Op<-3>(); }
>> +        Value *getCalledValue()       { return Op<-3>(); }
>>
>>     /// setCalledFunction - Set the function called.
>>     void setCalledFunction(Value* Fn) {
>> -    Op<0>() = Fn;
>> +    Op<-3>() = Fn;
>>     }
>>
>>     // get*Dest - Return the destination basic blocks...
>>     BasicBlock *getNormalDest() const {
>> -    return cast<BasicBlock>(getOperand(1));
>> +    return cast<BasicBlock>(Op<-2>());
>>     }
>>     BasicBlock *getUnwindDest() const {
>> -    return cast<BasicBlock>(getOperand(2));
>> +    return cast<BasicBlock>(Op<-1>());
>>     }
>>     void setNormalDest(BasicBlock *B) {
>> -    setOperand(1, (Value*)B);
>> +    Op<-2>() = reinterpret_cast<Value*>(B);
>>     }
>> -
>>     void setUnwindDest(BasicBlock *B) {
>> -    setOperand(2, (Value*)B);
>> +    Op<-1>() = reinterpret_cast<Value*>(B);
>>     }
>>
>>     BasicBlock *getSuccessor(unsigned i) const {
>> @@ -2557,7 +2556,7 @@
>>
>>     void setSuccessor(unsigned idx, BasicBlock *NewSucc) {
>>       assert(idx<  2&&  "Successor # out of range for invoke!");
>> -    setOperand(idx+1, (Value*)NewSucc);
>> +    *(&Op<-2>() + idx) = reinterpret_cast<Value*>(NewSucc);
>>     }
>>
>>     unsigned getNumSuccessors() const { return 2; }
>> @@ -2570,6 +2569,7 @@
>>     static inline bool classof(const Value *V) {
>>       return isa<Instruction>(V)&&  classof(cast<Instruction>(V));
>>     }
>> +
>>   private:
>>     virtual BasicBlock *getSuccessorV(unsigned idx) const;
>>     virtual unsigned getNumSuccessorsV() const;
>>
>> Modified: llvm/trunk/include/llvm/Support/CallSite.h
>> URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Support/CallSite.h?rev=99399&r1=99398&r2=99399&view=diff
>> ==============================================================================
>> --- llvm/trunk/include/llvm/Support/CallSite.h (original)
>> +++ llvm/trunk/include/llvm/Support/CallSite.h Wed Mar 24 08:21:49 2010
>> @@ -122,7 +122,7 @@
>>     ///
>>     Value *getCalledValue() const {
>>       assert(getInstruction()&&  "Not a call or invoke instruction!");
>> -    return getInstruction()->getOperand(0);
>> +    return *getCallee();
>>     }
>>
>>     /// getCalledFunction - Return the function being called if this is a
>> direct
>> @@ -136,7 +136,7 @@
>>     ///
>>     void setCalledFunction(Value *V) {
>>       assert(getInstruction()&&  "Not a call or invoke instruction!");
>> -    getInstruction()->setOperand(0, V);
>> +    *getCallee() = V;
>>     }
>>
>>     Value *getArgument(unsigned ArgNo) const {
>> @@ -150,6 +150,16 @@
>>       getInstruction()->setOperand(getArgumentOffset() + ArgNo, newVal);
>>     }
>>
>> +  /// Given a value use iterator, returns the argument that corresponds
>> to it.
>> +  /// Iterator must actually correspond to an argument.
>> +  unsigned getArgumentNo(Value::use_iterator I) const {
>> +    assert(getInstruction()&&  "Not a call or invoke instruction!");
>> +    assert(arg_begin()<=&I.getUse()&&  &I.getUse()<  arg_end()
>> +&&  "Argument # out of range!");
>> +
>> +    return&I.getUse() - arg_begin();
>> +  }
>> +
>>     /// Given an operand number, returns the argument that corresponds to
>> it.
>>     /// OperandNo must be a valid operand number that actually corresponds
>> to an
>>     /// argument.
>> @@ -175,7 +185,7 @@
>>       return getInstruction()->op_begin() + getArgumentOffset();
>>     }
>>
>> -  arg_iterator arg_end() const { return getInstruction()->op_end(); }
>> +  arg_iterator arg_end() const { return getInstruction()->op_end() -
>> getArgumentEndOffset(); }
>>     bool arg_empty() const { return arg_end() == arg_begin(); }
>>     unsigned arg_size() const { return unsigned(arg_end() - arg_begin());
>> }
>>
>> @@ -184,17 +194,28 @@
>>     }
>>
>>     bool isCallee(Value::use_iterator UI) const {
>> -    return getInstruction()->op_begin() ==&UI.getUse();
>> +    return getCallee() ==&UI.getUse();
>> +  }
>> +  bool isCallee(Value::use_const_iterator UI) const {
>> +    return getCallee() ==&UI.getUse();
>>     }
>> -
>>   private:
>>     /// Returns the operand number of the first argument
>>     unsigned getArgumentOffset() const {
>>       if (isCall())
>>         return 1; // Skip Function
>>       else
>> -      return 3; // Skip Function, BB, BB
>> +      return 0; // Args are at the front
>>     }
>> +
>> +  unsigned getArgumentEndOffset() const {
>> +    if (isCall())
>> +      return 0; // Unchanged
>> +    else
>> +      return 3; // Skip BB, BB, Function
>> +  }
>> +
>> +  User::op_iterator getCallee() const;
>>   };
>>
>>   } // End llvm namespace
>>
>> Modified: llvm/trunk/lib/Analysis/IPA/GlobalsModRef.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Analysis/IPA/GlobalsModRef.cpp?rev=99399&r1=99398&r2=99399&view=diff
>> ==============================================================================
>> --- llvm/trunk/lib/Analysis/IPA/GlobalsModRef.cpp (original)
>> +++ llvm/trunk/lib/Analysis/IPA/GlobalsModRef.cpp Wed Mar 24 08:21:49 2010
>> @@ -257,7 +257,7 @@
>>       } else if (InvokeInst *II = dyn_cast<InvokeInst>(*UI)) {
>>         // Make sure that this is just the function being called, not that
>> it is
>>         // passing into the function.
>> -      for (unsigned i = 3, e = II->getNumOperands(); i != e; ++i)
>> +      for (unsigned i = 0, e = II->getNumOperands() - 3; i != e; ++i)
>>           if (II->getOperand(i) == V) return true;
>>       } else if (ConstantExpr *CE = dyn_cast<ConstantExpr>(*UI)) {
>>         if (CE->getOpcode() == Instruction::GetElementPtr ||
>>
>> Modified: llvm/trunk/lib/Bitcode/Writer/BitcodeWriter.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Bitcode/Writer/BitcodeWriter.cpp?rev=99399&r1=99398&r2=99399&view=diff
>> ==============================================================================
>> --- llvm/trunk/lib/Bitcode/Writer/BitcodeWriter.cpp (original)
>> +++ llvm/trunk/lib/Bitcode/Writer/BitcodeWriter.cpp Wed Mar 24 08:21:49
>> 2010
>> @@ -1090,11 +1090,11 @@
>>
>>       // Emit value #'s for the fixed parameters.
>>       for (unsigned i = 0, e = FTy->getNumParams(); i != e; ++i)
>> -      Vals.push_back(VE.getValueID(I.getOperand(i+3)));  // fixed param.
>> +      Vals.push_back(VE.getValueID(I.getOperand(i)));  // fixed param.
>>
>>       // Emit type/value pairs for varargs params.
>>       if (FTy->isVarArg()) {
>> -      for (unsigned i = 3+FTy->getNumParams(), e = I.getNumOperands();
>> +      for (unsigned i = FTy->getNumParams(), e = I.getNumOperands()-3;
>>              i != e; ++i)
>>           PushValueAndType(I.getOperand(i), InstID, Vals, VE); // vararg
>>       }
>>
>> Modified: llvm/trunk/lib/Transforms/IPO/DeadArgumentElimination.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/IPO/DeadArgumentElimination.cpp?rev=99399&r1=99398&r2=99399&view=diff
>> ==============================================================================
>> --- llvm/trunk/lib/Transforms/IPO/DeadArgumentElimination.cpp (original)
>> +++ llvm/trunk/lib/Transforms/IPO/DeadArgumentElimination.cpp Wed Mar 24
>> 08:21:49 2010
>> @@ -352,7 +352,7 @@
>>           // argument, since if it was the function argument this would be
>> an
>>           // indirect call and the we know can't be looking at a value of
>> the
>>           // label type (for the invoke instruction).
>> -        unsigned ArgNo = CS.getArgumentNo(U.getOperandNo());
>> +        unsigned ArgNo = CS.getArgumentNo(U);
>>
>>           if (ArgNo>= F->getFunctionType()->getNumParams())
>>             // The value is passed in through a vararg! Must be live.
>>
>> Modified: llvm/trunk/lib/Transforms/IPO/PruneEH.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/IPO/PruneEH.cpp?rev=99399&r1=99398&r2=99399&view=diff
>> ==============================================================================
>> --- llvm/trunk/lib/Transforms/IPO/PruneEH.cpp (original)
>> +++ llvm/trunk/lib/Transforms/IPO/PruneEH.cpp Wed Mar 24 08:21:49 2010
>> @@ -168,7 +168,7 @@
>>     for (Function::iterator BB = F->begin(), E = F->end(); BB != E; ++BB)
>> {
>>       if (InvokeInst *II = dyn_cast<InvokeInst>(BB->getTerminator()))
>>         if (II->doesNotThrow()) {
>> -        SmallVector<Value*, 8>  Args(II->op_begin()+3, II->op_end());
>> +        SmallVector<Value*, 8>  Args(II->op_begin(), II->op_end() - 3);
>>           // Insert a call instruction before the invoke.
>>           CallInst *Call = CallInst::Create(II->getCalledValue(),
>>                                             Args.begin(), Args.end(), "",
>> II);
>>
>> Modified: llvm/trunk/lib/Transforms/Scalar/SCCP.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Scalar/SCCP.cpp?rev=99399&r1=99398&r2=99399&view=diff
>> ==============================================================================
>> --- llvm/trunk/lib/Transforms/Scalar/SCCP.cpp (original)
>> +++ llvm/trunk/lib/Transforms/Scalar/SCCP.cpp Wed Mar 24 08:21:49 2010
>> @@ -1717,7 +1717,8 @@
>>           return true;  // Storing addr of GV.
>>       } else if (isa<InvokeInst>(U) || isa<CallInst>(U)) {
>>         // Make sure we are calling the function, not passing the address.
>> -      if (UI.getOperandNo() != 0)
>> +      CallSite CS((Instruction*)U);
>> +      if (!CS.isCallee(UI))
>>           return true;
>>       } else if (const LoadInst *LI = dyn_cast<LoadInst>(U)) {
>>         if (LI->isVolatile())
>>
>> Modified: llvm/trunk/lib/Transforms/Scalar/SimplifyCFGPass.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Scalar/SimplifyCFGPass.cpp?rev=99399&r1=99398&r2=99399&view=diff
>> ==============================================================================
>> --- llvm/trunk/lib/Transforms/Scalar/SimplifyCFGPass.cpp (original)
>> +++ llvm/trunk/lib/Transforms/Scalar/SimplifyCFGPass.cpp Wed Mar 24
>> 08:21:49 2010
>> @@ -79,7 +79,7 @@
>>   /// ChangeToCall - Convert the specified invoke into a normal call.
>>   static void ChangeToCall(InvokeInst *II) {
>>     BasicBlock *BB = II->getParent();
>> -  SmallVector<Value*, 8>  Args(II->op_begin()+3, II->op_end());
>> +  SmallVector<Value*, 8>  Args(II->op_begin(), II->op_end() - 3);
>>     CallInst *NewCall = CallInst::Create(II->getCalledValue(),
>> Args.begin(),
>>                                          Args.end(), "", II);
>>     NewCall->takeName(II);
>>
>> Modified: llvm/trunk/lib/Transforms/Utils/LowerInvoke.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Utils/LowerInvoke.cpp?rev=99399&r1=99398&r2=99399&view=diff
>> ==============================================================================
>> --- llvm/trunk/lib/Transforms/Utils/LowerInvoke.cpp (original)
>> +++ llvm/trunk/lib/Transforms/Utils/LowerInvoke.cpp Wed Mar 24 08:21:49
>> 2010
>> @@ -226,7 +226,7 @@
>>     bool Changed = false;
>>     for (Function::iterator BB = F.begin(), E = F.end(); BB != E; ++BB)
>>       if (InvokeInst *II = dyn_cast<InvokeInst>(BB->getTerminator())) {
>> -      std::vector<Value*>  CallArgs(II->op_begin()+3, II->op_end());
>> +      std::vector<Value*>  CallArgs(II->op_begin(), II->op_end() - 3);
>>         // Insert a normal call instruction...
>>         CallInst *NewCall = CallInst::Create(II->getCalledValue(),
>>                                              CallArgs.begin(),
>> CallArgs.end(), "",II);
>> @@ -298,7 +298,7 @@
>>     CatchSwitch->addCase(InvokeNoC, II->getUnwindDest());
>>
>>     // Insert a normal call instruction.
>> -  std::vector<Value*>  CallArgs(II->op_begin()+3, II->op_end());
>> +  std::vector<Value*>  CallArgs(II->op_begin(), II->op_end() - 3);
>>     CallInst *NewCall = CallInst::Create(II->getCalledValue(),
>>                                          CallArgs.begin(), CallArgs.end(),
>> "",
>>                                          II);
>>
>> Modified: llvm/trunk/lib/VMCore/AsmWriter.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/VMCore/AsmWriter.cpp?rev=99399&r1=99398&r2=99399&view=diff
>> ==============================================================================
>> --- llvm/trunk/lib/VMCore/AsmWriter.cpp (original)
>> +++ llvm/trunk/lib/VMCore/AsmWriter.cpp Wed Mar 24 08:21:49 2010
>> @@ -1875,6 +1875,7 @@
>>       if (PAL.getFnAttributes() != Attribute::None)
>>         Out<<  ' '<<  Attribute::getAsString(PAL.getFnAttributes());
>>     } else if (const InvokeInst *II = dyn_cast<InvokeInst>(&I)) {
>> +    Operand = II->getCalledValue();
>>       const PointerType    *PTy = cast<PointerType>(Operand->getType());
>>       const FunctionType   *FTy =
>> cast<FunctionType>(PTy->getElementType());
>>       const Type         *RetTy = FTy->getReturnType();
>> @@ -1912,10 +1913,10 @@
>>         writeOperand(Operand, true);
>>       }
>>       Out<<  '(';
>> -    for (unsigned op = 3, Eop = I.getNumOperands(); op<  Eop; ++op) {
>> -      if (op>  3)
>> +    for (unsigned op = 0, Eop = I.getNumOperands() - 3; op<  Eop; ++op) {
>> +      if (op)
>>           Out<<  ", ";
>> -      writeParamOperand(I.getOperand(op), PAL.getParamAttributes(op-2));
>> +      writeParamOperand(I.getOperand(op), PAL.getParamAttributes(op +
>> 1));
>>       }
>>
>>       Out<<  ')';
>>
>> Modified: llvm/trunk/lib/VMCore/Function.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/VMCore/Function.cpp?rev=99399&r1=99398&r2=99399&view=diff
>> ==============================================================================
>> --- llvm/trunk/lib/VMCore/Function.cpp (original)
>> +++ llvm/trunk/lib/VMCore/Function.cpp Wed Mar 24 08:21:49 2010
>> @@ -16,6 +16,7 @@
>>   #include "llvm/IntrinsicInst.h"
>>   #include "llvm/LLVMContext.h"
>>   #include "llvm/CodeGen/ValueTypes.h"
>> +#include "llvm/Support/CallSite.h"
>>   #include "llvm/Support/LeakDetector.h"
>>   #include "llvm/Support/ManagedStatic.h"
>>   #include "llvm/Support/StringPool.h"
>> @@ -402,11 +403,14 @@
>>
>>   /// hasAddressTaken - returns true if there are any uses of this
>> function
>>   /// other than direct calls or invokes to it.
>> -bool Function::hasAddressTaken() const {
>> +bool Function::hasAddressTaken(const User* *PutOffender) const {
>>     for (Value::use_const_iterator I = use_begin(), E = use_end(); I != E;
>> ++I) {
>> -    if (I.getOperandNo() != 0 ||
>> -        (!isa<CallInst>(*I)&&  !isa<InvokeInst>(*I)))
>> -      return true;
>> +    const User *U = *I;
>> +    if (!isa<CallInst>(U)&&  !isa<InvokeInst>(U))
>> +      return PutOffender ? (*PutOffender = U, true) : true;
>> +    CallSite CS(const_cast<Instruction*>(static_cast<const
>> Instruction*>(U)));
>> +    if (!CS.isCallee(I))
>> +      return PutOffender ? (*PutOffender = U, true) : true;
>
> Why is it safe to cast to Instruction?? Isn't the user commonly a
> Constant (vtable arrays, global aliases)??
>
> Nick
>
>>     }
>>     return false;
>>   }
>>
>> Modified: llvm/trunk/lib/VMCore/Instructions.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/VMCore/Instructions.cpp?rev=99399&r1=99398&r2=99399&view=diff
>> ==============================================================================
>> --- llvm/trunk/lib/VMCore/Instructions.cpp (original)
>> +++ llvm/trunk/lib/VMCore/Instructions.cpp Wed Mar 24 08:21:49 2010
>> @@ -109,6 +109,13 @@
>>     return false;
>>   }
>>
>> +User::op_iterator CallSite::getCallee() const {
>> +  Instruction *II(getInstruction());
>> +  return isCall()
>> +    ? cast<CallInst>(II)->op_begin()
>> +    : cast<InvokeInst>(II)->op_end() - 3; // Skip BB, BB, Function
>> +}
>> +
>>   #undef CALLSITE_DELEGATE_GETTER
>>   #undef CALLSITE_DELEGATE_SETTER
>>
>> @@ -622,10 +629,9 @@
>>   void InvokeInst::init(Value *Fn, BasicBlock *IfNormal, BasicBlock
>> *IfException,
>>                         Value* const *Args, unsigned NumArgs) {
>>     assert(NumOperands == 3+NumArgs&&  "NumOperands not set up?");
>> -  Use *OL = OperandList;
>> -  OL[0] = Fn;
>> -  OL[1] = IfNormal;
>> -  OL[2] = IfException;
>> +  Op<-3>() = Fn;
>> +  Op<-2>() = IfNormal;
>> +  Op<-1>() = IfException;
>>     const FunctionType *FTy =
>>
>> cast<FunctionType>(cast<PointerType>(Fn->getType())->getElementType());
>>     FTy = FTy;  // silence warning.
>> @@ -634,12 +640,13 @@
>>             (FTy->isVarArg()&&  NumArgs>  FTy->getNumParams()))&&
>>            "Invoking a function with bad signature");
>>
>> +  Use *OL = OperandList;
>>     for (unsigned i = 0, e = NumArgs; i != e; i++) {
>>       assert((i>= FTy->getNumParams() ||
>>               FTy->getParamType(i) == Args[i]->getType())&&
>>              "Invoking a function with a bad signature!");
>>
>> -    OL[i+3] = Args[i];
>> +    OL[i] = Args[i];
>>     }
>>   }
>>
>>
>> Modified: llvm/trunk/lib/VMCore/Verifier.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/VMCore/Verifier.cpp?rev=99399&r1=99398&r2=99399&view=diff
>> ==============================================================================
>> --- llvm/trunk/lib/VMCore/Verifier.cpp (original)
>> +++ llvm/trunk/lib/VMCore/Verifier.cpp Wed Mar 24 08:21:49 2010
>> @@ -676,17 +676,13 @@
>>                 "blockaddress may not be used with the entry block!",
>> Entry);
>>       }
>>     }
>> -
>> +
>>     // If this function is actually an intrinsic, verify that it is only
>> used in
>>     // direct call/invokes, never having its "address taken".
>>     if (F.getIntrinsicID()) {
>> -    for (Value::use_iterator UI = F.use_begin(), E = F.use_end(); UI !=
>> E;++UI){
>> -      User *U = cast<User>(UI);
>> -      if ((isa<CallInst>(U) || isa<InvokeInst>(U))&&  UI.getOperandNo()
>> == 0)
>> -        continue;  // Direct calls/invokes are ok.
>> -
>> +    const User *U;
>> +    if (F.hasAddressTaken(&U))
>>         Assert1(0, "Invalid user of intrinsic instruction!", U);
>> -    }
>>     }
>>   }
>>
>> @@ -1483,7 +1479,7 @@
>>                   "Instruction does not dominate all uses!", Op,&I);
>>         }
>>       } else if (isa<InlineAsm>(I.getOperand(i))) {
>> -      Assert1(i == 0&&  (isa<CallInst>(I) || isa<InvokeInst>(I)),
>> +      Assert1((i == 0&&  isa<CallInst>(I)) || (i + 3 == e&&
>> isa<InvokeInst>(I)),
>>                 "Cannot take the address of an inline asm!",&I);
>>       }
>>     }
>>
>>
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>
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