Integrate LLVM at llvm/llvm-project@4504e1134c91

Updates LLVM usage to match
[4504e1134c91](https://github.com/llvm/llvm-project/commit/4504e1134c91)

PiperOrigin-RevId: 385502924
Change-Id: Ib83ac5128cfb8755a015f442b58fda6151d1432b
diff --git a/third_party/llvm/workspace.bzl b/third_party/llvm/workspace.bzl
index 1f10199..d2c6704 100644
--- a/third_party/llvm/workspace.bzl
+++ b/third_party/llvm/workspace.bzl
@@ -4,8 +4,8 @@
 
 def repo(name):
     """Imports LLVM."""
-    LLVM_COMMIT = "0ad1d9fdf22dad41312e02b8bc990bf58ce1744c"
-    LLVM_SHA256 = "517db6d771cf24d9f0aea6d4fdd59591347c7eb9d86ef58521fe8cb929fbe82b"
+    LLVM_COMMIT = "4504e1134c9118f3c322685f8a90129e09bab92c"
+    LLVM_SHA256 = "2b1d7a96ff37600cae12d2ed51b9f0554b1bbc6511ffe51ac7525928b29bab44"
 
     tf_http_archive(
         name = name,