Index: include/llvm-c/Core.h
===================================================================
--- include/llvm-c/Core.h
+++ include/llvm-c/Core.h
@@ -399,6 +399,16 @@
                                      void *DiagnosticContext);
 
 /**
+ * Get the diagnostic handler of this context.
+ */
+LLVMDiagnosticHandler LLVMContextGetDiagnosticHandler(LLVMContextRef C);
+
+/**
+ * Get the diagnostic context of this context.
+ */
+void *LLVMContextGetDiagnosticContext(LLVMContextRef C);
+
+/**
  * Set the yield callback function for this context.
  *
  * @see LLVMContext::setYieldCallback()
Index: lib/IR/Core.cpp
===================================================================
--- lib/IR/Core.cpp
+++ lib/IR/Core.cpp
@@ -85,10 +85,20 @@
                                      LLVMDiagnosticHandler Handler,
                                      void *DiagnosticContext) {
   unwrap(C)->setDiagnosticHandler(
-      LLVM_EXTENSION reinterpret_cast<LLVMContext::DiagnosticHandlerTy>(Handler),
+      LLVM_EXTENSION reinterpret_cast<LLVMContext::DiagnosticHandlerTy>(
+          Handler),
       DiagnosticContext);
 }
 
+LLVMDiagnosticHandler LLVMContextGetDiagnosticHandler(LLVMContextRef C) {
+  return LLVM_EXTENSION reinterpret_cast<LLVMDiagnosticHandler>(
+      unwrap(C)->getDiagnosticHandler());
+}
+
+void *LLVMContextGetDiagnosticContext(LLVMContextRef C) {
+  return unwrap(C)->getDiagnosticContext();
+}
+
 void LLVMContextSetYieldCallback(LLVMContextRef C, LLVMYieldCallback Callback,
                                  void *OpaqueHandle) {
   auto YieldCallback =