diff --git a/.gitmodules b/.gitmodules
index c60a0dd2c7c43..cfc7d9168b64a 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -33,8 +33,8 @@
 	url = https://github.com/rust-lang/edition-guide.git
 [submodule "src/llvm-project"]
 	path = src/llvm-project
-	url = https://github.com/rust-lang/llvm-project.git
-	branch = rustc/13.0-2021-09-30
+	url = https://github.com/nikic/llvm-project.git
+	branch = rust-inline-test
 [submodule "src/doc/embedded-book"]
 	path = src/doc/embedded-book
 	url = https://github.com/rust-embedded/book.git
diff --git a/src/llvm-project b/src/llvm-project
index a7348ae0df3c7..8a4b8c23888c3 160000
--- a/src/llvm-project
+++ b/src/llvm-project
@@ -1 +1 @@
-Subproject commit a7348ae0df3c71581dbe3d355fc0fb6ce6332dd0
+Subproject commit 8a4b8c23888c39b83862f2bf82d66cb880ea3283