Integrate LLVM at llvm/llvm-project@bb907b26e2bf

Updates LLVM usage to match
[bb907b26e2bf](https://github.com/llvm/llvm-project/commit/bb907b26e2bf)

PiperOrigin-RevId: 368850216
diff --git a/SUBMODULE_VERSIONS.txt b/SUBMODULE_VERSIONS.txt
index 50343f8..57f7109 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
-3bc88eb3924f6491457a787db3a8cf5ab45c92c1 third_party/llvm-project
+bb907b26e2bf2a0d5ea3fcb13ba0ccef3420a38c 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 3bc88eb..bb907b2 160000
--- a/third_party/llvm-project
+++ b/third_party/llvm-project
@@ -1 +1 @@
-Subproject commit 3bc88eb3924f6491457a787db3a8cf5ab45c92c1
+Subproject commit bb907b26e2bf2a0d5ea3fcb13ba0ccef3420a38c