diff --git a/.gitmodules b/.gitmodules
index 8618f61f04a..d4a80efc277 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -37,7 +37,7 @@
 [submodule "src/llvm-project"]
 	path = src/llvm-project
 	url = https://github.com/rust-lang/llvm-project.git
-	branch = rustc/12.0-2021-02-03
+	branch = rustc/12.0-2021-04-15
 [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 5ef9f9948fc..a7f0c221ba2 160000
--- a/src/llvm-project
+++ b/src/llvm-project
@@ -1 +1 @@
-Subproject commit 5ef9f9948fca7cb39dd6c1935ca4e819fb7a0db2
+Subproject commit a7f0c221ba2c022842c3193b20c3a5cd7002fb35