Make 'Insert' set the name for Loads, instead of passing the name into the

[oota-llvm.git] / include / llvm / Support / CallSite.h

diff --git a/include/llvm/Support/CallSite.h b/include/llvm/Support/CallSite.h
index d7b28fce37feff5b07a9fbee23a4f283346c9261..ce95cc5aaac0ed91e5a45394a6851161389caf83 100644 (file)
--- a/include/llvm/Support/CallSite.h
+++ b/include/llvm/Support/CallSite.h
@@ -36,11 +36,11 @@ public:
   CallSite(CallInst *CI) : I(reinterpret_cast<Instruction*>(CI)) {}
   CallSite(InvokeInst *II) : I(reinterpret_cast<Instruction*>(II)) {}
   CallSite(Instruction *C);
-  CallSite(const CallSite &cs) : I(cs.I) {}
-  CallSite &operator=(const CallSite &cs) { I = cs.I; return *this; }
+  CallSite(const CallSite &CS) : I(CS.I) {}
+  CallSite &operator=(const CallSite &CS) { I = CS.I; return *this; }
 
-  bool operator==(const CallSite &cs) const { return I == cs.I; }
-  bool operator!=(const CallSite &cs) const { return I != cs.I; }
+  bool operator==(const CallSite &CS) const { return I == CS.I; }
+  bool operator!=(const CallSite &CS) const { return I != CS.I; }
   
   /// CallSite::get - This static method is sort of like a constructor.  It will
   /// create an appropriate call site for a Call or Invoke instruction, but it
@@ -75,9 +75,15 @@ public:
 
   /// @brief Determine if the call does not access memory.
   bool doesNotAccessMemory() const;
+  void setDoesNotAccessMemory(bool doesNotAccessMemory = true);
 
   /// @brief Determine if the call does not access or only reads memory.
   bool onlyReadsMemory() const;
+  void setOnlyReadsMemory(bool onlyReadsMemory = true);
+
+  /// @brief Determine if the call cannot return.
+  bool doesNotReturn() const;
+  void setDoesNotReturn(bool doesNotReturn = true);
 
   /// @brief Determine if the call cannot unwind.
   bool doesNotThrow() const;
@@ -124,32 +130,48 @@ public:
   void setArgument(unsigned ArgNo, Value* newVal) {
     assert(I && "Not a call or invoke instruction!");
     assert(arg_begin() + ArgNo < arg_end() && "Argument # out of range!");
-    if (I->getOpcode() == Instruction::Call)
-      I->setOperand(ArgNo+1, newVal); // Skip Function
-    else
-      I->setOperand(ArgNo+3, newVal); // Skip Function, BB, BB
+    I->setOperand(getArgumentOffset() + ArgNo, newVal);
   }
 
+  /// Given an operand number, returns the argument that corresponds to it.
+  /// OperandNo must be a valid operand number that actually corresponds to an
+  /// argument.
+  unsigned getArgumentNo(unsigned OperandNo) const {
+    assert(OperandNo >= getArgumentOffset() && "Operand number passed was not "
+                                               "a valid argument");
+    return OperandNo - getArgumentOffset();
+  }
+
+  /// hasArgument - Returns true if this CallSite passes the given Value* as an
+  /// argument to the called function.
+  bool hasArgument(const Value *Arg) const;
+
   /// arg_iterator - The type of iterator to use when looping over actual
   /// arguments at this call site...
   typedef User::op_iterator arg_iterator;
 
   /// arg_begin/arg_end - Return iterators corresponding to the actual argument
   /// list for a call site.
-  ///
   arg_iterator arg_begin() const {
     assert(I && "Not a call or invoke instruction!");
-    if (I->getOpcode() == Instruction::Call)
-      return I->op_begin()+1; // Skip Function
-    else
-      return I->op_begin()+3; // Skip Function, BB, BB
+    return I->op_begin() + getArgumentOffset(); // Skip non-arguments
   }
+
   arg_iterator arg_end() const { return I->op_end(); }
   bool arg_empty() const { return arg_end() == arg_begin(); }
   unsigned arg_size() const { return unsigned(arg_end() - arg_begin()); }
 
-  bool operator<(const CallSite &cs) const {
-    return getInstruction() < cs.getInstruction();
+  bool operator<(const CallSite &CS) const {
+    return getInstruction() < CS.getInstruction();
+  }
+
+private:
+  /// Returns the operand number of the first argument
+  unsigned getArgumentOffset() const {
+    if (I->getOpcode() == Instruction::Call)
+      return 1; // Skip Function
+    else
+      return 3; // Skip Function, BB, BB
   }
 };