diff --git a/src/internal/goexperiment/exp_newinliner_off.go b/src/internal/goexperiment/exp_newinliner_off.go
new file mode 100644
index 00000000000..27bdec3e2de
--- /dev/null
+++ b/src/internal/goexperiment/exp_newinliner_off.go
@@ -0,0 +1,13 @@
+// Copyright 2023 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Code generated by mkconsts.go. DO NOT EDIT.
+
+//go:build !goexperiment.newinliner
+// +build !goexperiment.newinliner
+
+package goexperiment
+
+const NewInliner = false
+const NewInlinerInt = 0
diff --git a/src/internal/goexperiment/exp_newinliner_on.go b/src/internal/goexperiment/exp_newinliner_on.go
new file mode 100644
index 00000000000..099e4e5caae
--- /dev/null
+++ b/src/internal/goexperiment/exp_newinliner_on.go
@@ -0,0 +1,13 @@
+// Copyright 2023 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Code generated by mkconsts.go. DO NOT EDIT.
+
+//go:build goexperiment.newinliner
+// +build goexperiment.newinliner
+
+package goexperiment
+
+const NewInliner = true
+const NewInlinerInt = 1
diff --git a/src/internal/goexperiment/flags.go b/src/internal/goexperiment/flags.go
index ae3cbaf89fa..f767cfa45d5 100644
--- a/src/internal/goexperiment/flags.go
+++ b/src/internal/goexperiment/flags.go
@@ -109,4 +109,8 @@ type Flags struct {
 	// CacheProg adds support to cmd/go to use a child process to implement
 	// the build cache; see https://github.com/golang/go/issues/59719.
 	CacheProg bool
+
+	// NewInliner enables a new+improved version of the function
+	// inlining phase within the Go compiler.
+	NewInliner bool
 }