Update llvm to latest

harsh-nod · harsh-nod · commit a5bb825b4060 · 2021-01-12T22:05:19.000Z
diff --git a/external/llvm-project b/external/llvm-project
@@ -1 +1 @@
-Subproject commit 3f739f736b8fed6f4d63569f56c985ef04b21cd1
+Subproject commit 2a49b7c64a33566cf5db1a5b4042d6037ccc7cf5
