Synchronize submodules

third_party/llvm-bazel

diff --git a/third_party/llvm-bazel b/third_party/llvm-bazel
index 8ac1a9f..8d2721f 160000
--- a/third_party/llvm-bazel
+++ b/third_party/llvm-bazel
@@ -1 +1 @@
-Subproject commit 8ac1a9f32bc8849a9974874fcc699ba9c5cba59d
+Subproject commit 8d2721f2a1b6fe4b8db418b53338e2a32356238a

third_party/tensorflow

diff --git a/third_party/tensorflow b/third_party/tensorflow
index b86f3c8..020a45b 160000
--- a/third_party/tensorflow
+++ b/third_party/tensorflow
@@ -1 +1 @@
-Subproject commit b86f3c8875a844851099e0a076904c20e810ae5e
+Subproject commit 020a45bd613ad2428d92e15bd49f78c8fa64b475