Integrate LLVM at llvm/llvm-project@422fc5603ab5

Updates LLVM usage to match
[422fc5603ab5](https://github.com/llvm/llvm-project/commit/422fc5603ab5)

PiperOrigin-RevId: 390410958

SUBMODULE_VERSIONS.txt

diff --git a/SUBMODULE_VERSIONS.txt b/SUBMODULE_VERSIONS.txt
index 3332a2d..1aa83ae 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
-a72cd6353c455b81df75d89959fafe886addfe5e third_party/llvm-project
+422fc5603ab5a93a814d9652201e4582f18f8136 third_party/llvm-project
 8df64d1c0e5b22dc3d7cc09b1308750621283e72 third_party/mlir-hlo
 4c7697dbe973ed01ae6fbec37d186ebd05982e1f third_party/pybind11
 2e1b5fb39ebc2ef4cb77005f8267e4f3a6241ba1 third_party/spirv_cross

third_party/llvm-project

diff --git a/third_party/llvm-project b/third_party/llvm-project
index a72cd63..422fc56 160000
--- a/third_party/llvm-project
+++ b/third_party/llvm-project
@@ -1 +1 @@
-Subproject commit a72cd6353c455b81df75d89959fafe886addfe5e
+Subproject commit 422fc5603ab5a93a814d9652201e4582f18f8136