Add utility function to manipulate attributes on CallSite. NFC

Summary: As per title. This will help work on the C API.

Reviewers: Wallbraker, whitequark, joker.eph, echristo, rafael

Subscribers: joker.eph, llvm-commits

Differential Revision: http://reviews.llvm.org/D19173

llvm-svn: 267057

1 files changed, 12 insertions, 0 deletions

diff --git a/llvm/lib/IR/Instructions.cpp b/llvm/lib/IR/Instructions.cpp
index 4f2fbee..65703d1 100644
--- a/llvm/lib/IR/Instructions.cpp
+++ b/llvm/lib/IR/Instructions.cpp
@@ -343,6 +343,12 @@ void CallInst::addAttribute(unsigned i, StringRef Kind, StringRef Value) {
   setAttributes(PAL);
 }
 
+void CallInst::removeAttribute(unsigned i, Attribute::AttrKind attr) {
+  AttributeSet PAL = getAttributes();
+  PAL = PAL.removeAttribute(getContext(), i, attr);
+  setAttributes(PAL);
+}
+
 void CallInst::removeAttribute(unsigned i, Attribute attr) {
   AttributeSet PAL = getAttributes();
   AttrBuilder B(attr);
@@ -663,6 +669,12 @@ void InvokeInst::addAttribute(unsigned i, Attribute::AttrKind attr) {
   setAttributes(PAL);
 }
 
+void InvokeInst::removeAttribute(unsigned i, Attribute::AttrKind attr) {
+  AttributeSet PAL = getAttributes();
+  PAL = PAL.removeAttribute(getContext(), i, attr);
+  setAttributes(PAL);
+}
+
 void InvokeInst::removeAttribute(unsigned i, Attribute attr) {
   AttributeSet PAL = getAttributes();
   AttrBuilder B(attr);