Integrate LLVM at llvm/llvm-project@8e284be04f2c

Updates LLVM usage to match
[8e284be04f2c](https://github.com/llvm/llvm-project/commit/8e284be04f2c)

PiperOrigin-RevId: 393387053
Change-Id: I14a679d76c96259cce529a276e8d3897f740f68e
diff --git a/third_party/llvm/workspace.bzl b/third_party/llvm/workspace.bzl
index 5e8132a..5eefb39 100644
--- a/third_party/llvm/workspace.bzl
+++ b/third_party/llvm/workspace.bzl
@@ -4,8 +4,8 @@
 
 def repo(name):
     """Imports LLVM."""
-    LLVM_COMMIT = "fe611b1da84b9442c093739394d336af9e99c1a1"
-    LLVM_SHA256 = "52edc892b020736f4c53e52b63687ee7caab93c90a0062b4026f4d49fc18266f"
+    LLVM_COMMIT = "8e284be04f2cd43a821289133a759afa2844f935"
+    LLVM_SHA256 = "bfd6b305b16fc26f563a832b383074314f8839ebfa177a07e7727d289d7806bb"
 
     tf_http_archive(
         name = name,