Add functions for adding and testing string attributes to CallInst. NFC.

This change is needed later when I make changes to attach string function
attributes to llvm.trap and llvm.debugtrap.

llvm-svn: 241304

llvm/include/llvm/IR/Instructions.h

@@ -22,6 +22,7 @@
 #include "llvm/IR/Attributes.h"
 #include "llvm/IR/CallingConv.h"
 #include "llvm/IR/DerivedTypes.h"
+#include "llvm/IR/Function.h"
 #include "llvm/IR/InstrTypes.h"
 #include "llvm/Support/ErrorHandling.h"
 #include <iterator>
@@ -1508,6 +1509,9 @@ public:
   /// addAttribute - adds the attribute to the list of attributes.
   void addAttribute(unsigned i, Attribute::AttrKind attr);
 
+  /// addAttribute - adds the attribute to the list of attributes.
+  void addAttribute(unsigned i, StringRef Kind, StringRef Value);
+
   /// removeAttribute - removes the attribute from the list of attributes.
   void removeAttribute(unsigned i, Attribute attr);
 
@@ -1525,6 +1529,11 @@ public:
     return hasFnAttrImpl(A);
   }
 
+  /// \brief Determine whether this call has the given attribute.
+  bool hasFnAttr(StringRef A) const {
+    return hasFnAttrImpl(A);
+  }
+
   /// \brief Determine whether the call or the callee has the given attributes.
   bool paramHasAttr(unsigned i, Attribute::AttrKind A) const;
 
@@ -1651,7 +1660,14 @@ public:
   }
 private:
 
-  bool hasFnAttrImpl(Attribute::AttrKind A) const;
+  template<typename AttrKind>
+  bool hasFnAttrImpl(AttrKind A) const {
+    if (AttributeList.hasAttribute(AttributeSet::FunctionIndex, A))
+      return true;
+    if (const Function *F = getCalledFunction())
+      return F->getAttributes().hasAttribute(AttributeSet::FunctionIndex, A);
+    return false;
+  }
 
   // Shadow Instruction::setInstructionSubclassData with a private forwarding
   // method so that subclasses cannot accidentally use it.

llvm/lib/IR/Instructions.cpp

@@ -292,6 +292,12 @@ void CallInst::addAttribute(unsigned i, Attribute::AttrKind attr) {
   setAttributes(PAL);
 }
 
+void CallInst::addAttribute(unsigned i, StringRef Kind, StringRef Value) {
+  AttributeSet PAL = getAttributes();
+  PAL = PAL.addAttribute(getContext(), i, Kind, Value);
+  setAttributes(PAL);
+}
+
 void CallInst::removeAttribute(unsigned i, Attribute attr) {
   AttributeSet PAL = getAttributes();
   AttrBuilder B(attr);
@@ -313,14 +319,6 @@ void CallInst::addDereferenceableOrNullAttr(unsigned i, uint64_t Bytes) {
   setAttributes(PAL);
 }
 
-bool CallInst::hasFnAttrImpl(Attribute::AttrKind A) const {
-  if (AttributeList.hasAttribute(AttributeSet::FunctionIndex, A))
-    return true;
-  if (const Function *F = getCalledFunction())
-    return F->getAttributes().hasAttribute(AttributeSet::FunctionIndex, A);
-  return false;
-}
-
 bool CallInst::paramHasAttr(unsigned i, Attribute::AttrKind A) const {
   if (AttributeList.hasAttribute(i, A))
     return true;