Integrate LLVM at llvm/llvm-project@3bc88eb3924f

Updates LLVM usage to match
[3bc88eb3924f](https://github.com/llvm/llvm-project/commit/3bc88eb3924f)

PiperOrigin-RevId: 368828718
diff --git a/SUBMODULE_VERSIONS.txt b/SUBMODULE_VERSIONS.txt
index 9cf27e7..50343f8 100644
--- a/SUBMODULE_VERSIONS.txt
+++ b/SUBMODULE_VERSIONS.txt
@@ -5,7 +5,7 @@
 b1fbd33c06cdb0024c67733c6fdec2009d17b384 third_party/googletest
 88b845dee001723c4a0db1fe5477de735b6d3bb0 third_party/liburing
 550f5535479769a92a97ef05cdadb12667337f60 third_party/llvm-bazel
-3f97c66b00400f5e7f0cd260107f53c11b1cc33b third_party/llvm-project
+3bc88eb3924f6491457a787db3a8cf5ab45c92c1 third_party/llvm-project
 3c265bf59bf2515a63ec35571c66954349749a62 third_party/mlir-emitc
 0dcbe56bd70a7d67b7c25ceefa15db2a19f16653 third_party/mlir-hlo
 2b2bd45bbf9be04fd22ece5cc1f54679202e9257 third_party/pffft
diff --git a/third_party/llvm-project b/third_party/llvm-project
index 3f97c66..3bc88eb 160000
--- a/third_party/llvm-project
+++ b/third_party/llvm-project
@@ -1 +1 @@
-Subproject commit 3f97c66b00400f5e7f0cd260107f53c11b1cc33b
+Subproject commit 3bc88eb3924f6491457a787db3a8cf5ab45c92c1