Integrate LLVM at llvm/llvm-project@89786c2b992c

Updates LLVM usage to match
[89786c2b992c](https://github.com/llvm/llvm-project/commit/89786c2b992c)

PiperOrigin-RevId: 395437677

SUBMODULE_VERSIONS.txt

diff --git a/SUBMODULE_VERSIONS.txt b/SUBMODULE_VERSIONS.txt
index ef64781..270bfc5 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
-2bf8be79b10cc41064bdbe3d001c48669027ccfe third_party/llvm-project
+89786c2b992c3cb4c4a230542d2af34ec2915a08 third_party/llvm-project
 b718c9ea058696b08b9b3fe296e25d92d7ac6eb0 third_party/mlir-hlo
 3f701faace7addc75d16dea8a6cd769fa5b3f260 third_party/musl
 4c7697dbe973ed01ae6fbec37d186ebd05982e1f third_party/pybind11

third_party/llvm-project

diff --git a/third_party/llvm-project b/third_party/llvm-project
index 2bf8be7..89786c2 160000
--- a/third_party/llvm-project
+++ b/third_party/llvm-project
@@ -1 +1 @@
-Subproject commit 2bf8be79b10cc41064bdbe3d001c48669027ccfe
+Subproject commit 89786c2b992c3cb4c4a230542d2af34ec2915a08