Add some convenience accessors for the underlying Use of an operand.

These complement many of the existing accessors and make it
significantly easier to write code which needs to poke at the underlying
Use without hard coding the operand number at which it resides for
a particular instruction. No functionality changed of course.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202102 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 17 insertions, 0 deletions

diff --git a/include/llvm/IR/Instructions.h b/include/llvm/IR/Instructions.h
index eeea9945e8..786fa8cdc2 100644
--- a/include/llvm/IR/Instructions.h
+++ b/include/llvm/IR/Instructions.h
@@ -1259,6 +1259,10 @@ public:
   Value *getArgOperand(unsigned i) const { return getOperand(i); }
   void setArgOperand(unsigned i, Value *v) { setOperand(i, v); }
 
+  /// \brief Wrappers for getting the \c Use of a call argument.
+  const Use &getArgOperandUse(unsigned i) const { return getOperandUse(i); }
+  Use &getArgOperandUse(unsigned i) { return getOperandUse(i); }
+
   /// getCallingConv/setCallingConv - Get or set the calling convention of this
   /// function call.
   CallingConv::ID getCallingConv() const {
@@ -2903,6 +2907,10 @@ public:
   Value *getArgOperand(unsigned i) const { return getOperand(i); }
   void setArgOperand(unsigned i, Value *v) { setOperand(i, v); }
 
+  /// \brief Wrappers for getting the \c Use of a call argument.
+  const Use &getArgOperandUse(unsigned i) const { return getOperandUse(i); }
+  Use &getArgOperandUse(unsigned i) { return getOperandUse(i); }
+
   /// getCallingConv/setCallingConv - Get or set the calling convention of this
   /// function call.
   CallingConv::ID getCallingConv() const {
diff --git a/include/llvm/IR/IntrinsicInst.h b/include/llvm/IR/IntrinsicInst.h
index 8344c56680..e053f7867c 100644
--- a/include/llvm/IR/IntrinsicInst.h
+++ b/include/llvm/IR/IntrinsicInst.h
@@ -118,8 +118,13 @@ namespace llvm {
   class MemIntrinsic : public IntrinsicInst {
   public:
     Value *getRawDest() const { return const_cast<Value*>(getArgOperand(0)); }
+    const Use &getRawDestUse() const { return getArgOperandUse(0); }
+    Use &getRawDestUse() { return getArgOperandUse(0); }
 
     Value *getLength() const { return const_cast<Value*>(getArgOperand(2)); }
+    const Use &getLengthUse() const { return getArgOperandUse(2); }
+    Use &getLengthUse() { return getArgOperandUse(2); }
+
     ConstantInt *getAlignmentCst() const {
       return cast<ConstantInt>(const_cast<Value*>(getArgOperand(3)));
     }
@@ -192,6 +197,8 @@ namespace llvm {
     /// get* - Return the arguments to the instruction.
     ///
     Value *getValue() const { return const_cast<Value*>(getArgOperand(1)); }
+    const Use &getValueUse() const { return getArgOperandUse(1); }
+    Use &getValueUse() { return getArgOperandUse(1); }
 
     void setValue(Value *Val) {
       assert(getValue()->getType() == Val->getType() &&
@@ -215,6 +222,8 @@ namespace llvm {
     /// get* - Return the arguments to the instruction.
     ///
     Value *getRawSource() const { return const_cast<Value*>(getArgOperand(1)); }
+    const Use &getRawSourceUse() const { return getArgOperandUse(1); }
+    Use &getRawSourceUse() { return getArgOperandUse(1); }
 
     /// getSource - This is just like getRawSource, but it strips off any cast
     /// instructions that feed it, giving the original input.  The returned