Integrate LLVM at llvm/llvm-project@7789a68e5ab9

Updates LLVM usage to match
[7789a68e5ab9](https://github.com/llvm/llvm-project/commit/7789a68e5ab9)

PiperOrigin-RevId: 399257294
diff --git a/SUBMODULE_VERSIONS.txt b/SUBMODULE_VERSIONS.txt
index 73c9b56..c72fae4 100644
--- a/SUBMODULE_VERSIONS.txt
+++ b/SUBMODULE_VERSIONS.txt
@@ -4,7 +4,7 @@
 aa533abfd4232b01f9e57041d70114d5a77e6de0 third_party/googletest
 88b845dee001723c4a0db1fe5477de735b6d3bb0 third_party/liburing
 acd6f6f014c25e46363e718381e0b35205df2d83 third_party/libyaml
-8cb234e07d467ca96748d1abeadf1a40c22444bc third_party/llvm-project
+7789a68e5ab999e39248469482c3c40d440131c1 third_party/llvm-project
 f6cc953c66201de2b722f819d035eb79daf7019f third_party/mlir-hlo
 3f701faace7addc75d16dea8a6cd769fa5b3f260 third_party/musl
 4c7697dbe973ed01ae6fbec37d186ebd05982e1f third_party/pybind11
diff --git a/third_party/llvm-project b/third_party/llvm-project
index 8cb234e..7789a68 160000
--- a/third_party/llvm-project
+++ b/third_party/llvm-project
@@ -1 +1 @@
-Subproject commit 8cb234e07d467ca96748d1abeadf1a40c22444bc
+Subproject commit 7789a68e5ab999e39248469482c3c40d440131c1