diff --git a/llvm/bindings/ocaml/executionengine/executionengine_ocaml.c b/llvm/bindings/ocaml/executionengine/executionengine_ocaml.c
index 4af771123c0c..fc3848a1eb14 100644
--- a/llvm/bindings/ocaml/executionengine/executionengine_ocaml.c
+++ b/llvm/bindings/ocaml/executionengine/executionengine_ocaml.c
@@ -181,7 +181,17 @@ CAMLprim LLVMExecutionEngineRef
 llvm_ee_create_jit(LLVMModuleProviderRef MP) {
   LLVMExecutionEngineRef JIT;
   char *Error;
-  if (LLVMCreateJITCompiler(&JIT, MP, &Error))
+  if (LLVMCreateJITCompiler(&JIT, MP, 0, &Error))
+    llvm_raise(llvm_ee_error_exn, Error);
+  return JIT;
+}
+
+/* llmoduleprovider -> ExecutionEngine.t */
+CAMLprim LLVMExecutionEngineRef
+llvm_ee_create_fast_jit(LLVMModuleProviderRef MP) {
+  LLVMExecutionEngineRef JIT;
+  char *Error;
+  if (LLVMCreateJITCompiler(&JIT, MP, 1, &Error))
     llvm_raise(llvm_ee_error_exn, Error);
   return JIT;
 }
diff --git a/llvm/bindings/ocaml/executionengine/llvm_executionengine.ml b/llvm/bindings/ocaml/executionengine/llvm_executionengine.ml
index 4b9132df052e..cf9acc7cb6b8 100644
--- a/llvm/bindings/ocaml/executionengine/llvm_executionengine.ml
+++ b/llvm/bindings/ocaml/executionengine/llvm_executionengine.ml
@@ -62,6 +62,8 @@ module ExecutionEngine = struct
     = "llvm_ee_create_interpreter"
   external create_jit: Llvm.llmoduleprovider -> t
     = "llvm_ee_create_jit"
+  external create_fast_jit: Llvm.llmoduleprovider -> t
+    = "llvm_ee_create_fast_jit"
   external dispose: t -> unit
     = "llvm_ee_dispose"
   external add_module_provider: Llvm.llmoduleprovider -> t -> unit
diff --git a/llvm/bindings/ocaml/executionengine/llvm_executionengine.mli b/llvm/bindings/ocaml/executionengine/llvm_executionengine.mli
index 9794f358fff1..17da1dffe556 100644
--- a/llvm/bindings/ocaml/executionengine/llvm_executionengine.mli
+++ b/llvm/bindings/ocaml/executionengine/llvm_executionengine.mli
@@ -100,12 +100,21 @@ module ExecutionEngine: sig
   val create_interpreter: Llvm.llmoduleprovider -> t
   
   (** [create_jit mp] creates a new JIT (just-in-time compiler), taking
-      ownership of the module provider [mp] if successful. Raises [Error msg] if
-      an error occurrs. The execution engine is not garbage collected and must
-      be destroyed with [dispose ee].
+      ownership of the module provider [mp] if successful. This function creates
+      a JIT which favors code quality over compilation speed. Raises [Error msg]
+      if an error occurrs. The execution engine is not garbage collected and
+      must be destroyed with [dispose ee].
       See the function [llvm::ExecutionEngine::create]. *)
   val create_jit: Llvm.llmoduleprovider -> t
   
+  (** [create_fast_jit mp] creates a new JIT (just-in-time compiler) which
+      favors compilation speed over code quality. It takes ownership of the
+      module provider [mp] if successful. Raises [Error msg] if an error
+      occurrs. The execution engine is not garbage collected and must be
+      destroyed with [dispose ee].
+      See the function [llvm::ExecutionEngine::create]. *)
+  val create_fast_jit: Llvm.llmoduleprovider -> t
+  
   (** [dispose ee] releases the memory used by the execution engine and must be
       invoked to avoid memory leaks. *)
   val dispose: t -> unit
diff --git a/llvm/include/llvm-c/ExecutionEngine.h b/llvm/include/llvm-c/ExecutionEngine.h
index 8664f1fe9a82..d138d072c632 100644
--- a/llvm/include/llvm-c/ExecutionEngine.h
+++ b/llvm/include/llvm-c/ExecutionEngine.h
@@ -62,6 +62,7 @@ int LLVMCreateInterpreter(LLVMExecutionEngineRef *OutInterp,
 
 int LLVMCreateJITCompiler(LLVMExecutionEngineRef *OutJIT,
                           LLVMModuleProviderRef MP,
+                          int Fast,
                           char **OutError);
 
 void LLVMDisposeExecutionEngine(LLVMExecutionEngineRef EE);
diff --git a/llvm/lib/ExecutionEngine/ExecutionEngineBindings.cpp b/llvm/lib/ExecutionEngine/ExecutionEngineBindings.cpp
index 5ceeb9097d00..7c55db0af258 100644
--- a/llvm/lib/ExecutionEngine/ExecutionEngineBindings.cpp
+++ b/llvm/lib/ExecutionEngine/ExecutionEngineBindings.cpp
@@ -114,11 +114,11 @@ int LLVMCreateInterpreter(LLVMExecutionEngineRef *OutInterp,
 
 int LLVMCreateJITCompiler(LLVMExecutionEngineRef *OutJIT,
                           LLVMModuleProviderRef MP,
-                          char **OutError,
-                          bool Fast = false) {
+                          int Fast,
+                          char **OutError) {
   std::string Error;
   if (ExecutionEngine *JIT = ExecutionEngine::createJIT(unwrap(MP), &Error, 0,
-                                                        Fast)) {
+                                                        Fast != 0)) {
     *OutJIT = wrap(JIT);
     return 0;
   }