[LLVM-C] Add binding to look up intrinsic by name

CodaFi · CodaFi · commit 9d94a684040f · 2019-03-25T20:58:58.000Z
Summary: Add a binding to Function::lookupIntrinsicID so clients don't have to go searching the ID table themselves. Reviewers: whitequark, deadalnix Reviewed By: whitequark Subscribers: hiraditya, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D59697 llvm-svn: 356948
diff --git a/llvm/include/llvm-c/Core.h b/llvm/include/llvm-c/Core.h
@@ -2402,6 +2402,13 @@ LLVMValueRef LLVMGetPersonalityFn(LLVMValueRef Fn);
  */
 void LLVMSetPersonalityFn(LLVMValueRef Fn, LLVMValueRef PersonalityFn);
 
+/**
+ * Obtain the intrinsic ID number which matches the given function name.
+ *
+ * @see llvm::Function::lookupIntrinsicID()
+ */
+unsigned LLVMLookupIntrinsicID(const char *Name, size_t NameLen);
+
 /**
  * Obtain the ID number from a function instance.
  *
diff --git a/llvm/lib/IR/Core.cpp b/llvm/lib/IR/Core.cpp
@@ -2329,6 +2329,10 @@ const char *LLVMIntrinsicCopyOverloadedName(unsigned ID,
   return strdup(Str.c_str());
 }
 
+unsigned LLVMLookupIntrinsicID(const char *Name, size_t NameLen) {
+  return Function::lookupIntrinsicID({Name, NameLen});
+}
+
 LLVMBool LLVMIntrinsicIsOverloaded(unsigned ID) {
   auto IID = llvm_map_to_intrinsic_id(ID);
   return llvm::Intrinsic::isOverloaded(IID);
