From 643bcb35e6d449d07560b9946d304b5865e7a7c4 Mon Sep 17 00:00:00 2001
From: Skye Wanderman-Milne <skyewm@google.com>
Date: Mon, 19 Oct 2020 21:22:50 -0700
Subject: [PATCH] [libtpu] Fix static_asserts.

PiperOrigin-RevId: 337992564
Change-Id: Ieba57b091ee23923eb1a6701bd80725fd891c80a
---
 tensorflow/stream_executor/tpu/c_api_conversions.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tensorflow/stream_executor/tpu/c_api_conversions.cc b/tensorflow/stream_executor/tpu/c_api_conversions.cc
index d8e7dac2c2d..ba0c4c1c2a3 100644
--- a/tensorflow/stream_executor/tpu/c_api_conversions.cc
+++ b/tensorflow/stream_executor/tpu/c_api_conversions.cc
@@ -156,7 +156,7 @@ stream_executor::DeviceMemoryBase FromC(const SE_DeviceMemoryBase& se_base) {
 // types that require a static_cast.
 template <typename Src, typename Dst, typename DstList>
 static void CopyVectorBase(const absl::Span<Src> src, DstList* dst) {
-  static_assert(sizeof(Src) == sizeof(Dst));
+  static_assert(sizeof(Src) == sizeof(Dst), "Mismatched types");
   dst->size = src.size();
   if (dst->size > TPU_C_API_MAX_INLINED) {
     dst->heap = new Dst[dst->size];
@@ -196,7 +196,7 @@ static void CopyVector(const absl::Span<const xla::Tile> src, TileList* dst) {
 // types that require a static_cast.
 template <typename Dst, typename Src, typename SrcList>
 static absl::Span<const Dst> MakeSpanBase(const SrcList& src_list) {
-  static_assert(sizeof(Src) == sizeof(Dst));
+  static_assert(sizeof(Src) == sizeof(Dst), "Mismatched types");
   const Src* src = src_list.size > TPU_C_API_MAX_INLINED ? src_list.heap
                                                          : &src_list.inlined[0];
   return absl::Span<const Dst>(reinterpret_cast<const Dst*>(src),