C API: Add LLVMAddTargetDependentFunctionAttr()

llvm-svn: 179645

2 files changed, 18 insertions, 0 deletions

diff --git a/llvm/include/llvm-c/Core.h b/llvm/include/llvm-c/Core.h
index 67527750720..3d54a216178 100644
--- a/llvm/include/llvm-c/Core.h
+++ b/llvm/include/llvm-c/Core.h
@@ -1706,6 +1706,13 @@ void LLVMSetGC(LLVMValueRef Fn, const char *Name);
 void LLVMAddFunctionAttr(LLVMValueRef Fn, LLVMAttribute PA);
 
 /**
+ * Add a target-dependent attribute to a fuction
+ * @see llvm::AttrBuilder::addAttribute()
+ */
+void LLVMAddTargetDependentFunctionAttr(LLVMValueRef Fn, const char *A,
+                                        const char *V);
+
+/**
  * Obtain an attribute from a function.
  *
  * @see llvm::Function::getAttributes()
diff --git a/llvm/lib/IR/Core.cpp b/llvm/lib/IR/Core.cpp
index f1f7eb31bb3..e769ab4e7d0 100644
--- a/llvm/lib/IR/Core.cpp
+++ b/llvm/lib/IR/Core.cpp
@@ -1443,6 +1443,17 @@ void LLVMAddFunctionAttr(LLVMValueRef Fn, LLVMAttribute PA) {
   Func->setAttributes(PALnew);
 }
 
+void LLVMAddTargetDependentFunctionAttr(LLVMValueRef Fn, const char *A,
+                                        const char *V) {
+  Function *Func = unwrap<Function>(Fn);
+  int Idx = AttributeSet::FunctionIndex;
+  AttrBuilder B;
+
+  B.addAttribute(A, V);
+  AttributeSet Set = AttributeSet::get(Func->getContext(), Idx, B);
+  Func->addAttributes(Idx, Set);
+}
+
 void LLVMRemoveFunctionAttr(LLVMValueRef Fn, LLVMAttribute PA) {
   Function *Func = unwrap<Function>(Fn);
   const AttributeSet PAL = Func->getAttributes();