Bump llvm 20220215 (#8338)

* Rev bumps
  * Integrate llvm-project at 18bf42c0a68828b5e7247bcee87ec56f3e6f234b
  * LLVM at 18bf42c0a68828b5e7247bcee87ec56f3e6f234b
  * TensorFlow at 2302856132d27fc4112515ba990e30cee953a055
  * mlir-hlo at 009212e22987c32314e62c113c2a58f7fd345be9
  * CL/428715749

* Upstream codegen fixed, so enabling test that should now be passing
diff --git a/build_tools/kokoro/gcp_ubuntu/cmake/linux/riscv64/tests/person_detect_rvv_test.run b/build_tools/kokoro/gcp_ubuntu/cmake/linux/riscv64/tests/person_detect_rvv_test.run
index 643b636..90de090 100644
--- a/build_tools/kokoro/gcp_ubuntu/cmake/linux/riscv64/tests/person_detect_rvv_test.run
+++ b/build_tools/kokoro/gcp_ubuntu/cmake/linux/riscv64/tests/person_detect_rvv_test.run
@@ -1,4 +1,3 @@
 // RUN: ${TEST_MODULE_CMD} --module_file="${BUILD_RISCV_DIR}/person_detect_rvv.vmfb" \
 // RUN:   --entry_function=main --function_input="1x96x96x1xi8=0" 2>&1 | FileCheck %s
 // CHECK: {{1x2xi8=\[72 -72\]}}
-// XFAIL: *
diff --git a/integrations/tensorflow/WORKSPACE b/integrations/tensorflow/WORKSPACE
index 67fe670..1aeeb26 100644
--- a/integrations/tensorflow/WORKSPACE
+++ b/integrations/tensorflow/WORKSPACE
@@ -7,7 +7,7 @@
 
 load("@bazel_tools//tools/build_defs/repo:git.bzl", "git_repository")
 
-TENSORFLOW_COMMIT = "3643c3122aedb68210ea410d2b4581636f49070b"
+TENSORFLOW_COMMIT = "2302856132d27fc4112515ba990e30cee953a055"
 
 git_repository(
     name = "org_tensorflow",
diff --git a/third_party/llvm-project b/third_party/llvm-project
index 9474c30..18bf42c 160000
--- a/third_party/llvm-project
+++ b/third_party/llvm-project
@@ -1 +1 @@
-Subproject commit 9474c3009e806cd72225a199fd08662649ce9efa
+Subproject commit 18bf42c0a68828b5e7247bcee87ec56f3e6f234b
diff --git a/third_party/mlir-hlo b/third_party/mlir-hlo
index 4a4e3bb..009212e 160000
--- a/third_party/mlir-hlo
+++ b/third_party/mlir-hlo
@@ -1 +1 @@
-Subproject commit 4a4e3bb42c461fb08316f3f756dd21e7d0ebd185
+Subproject commit 009212e22987c32314e62c113c2a58f7fd345be9