Fix build error when '__ARM_FP' is 0x02submit/tizen/20220422.024303accepted/tizen/unified/20220422.133441

 - When '__ARM_FP' is 0x02(fpu support), '__fp16' or '_Float16' needs for 'float16_t'.
   But '__fp16' and '_Float16' are not declared in tizen.
   So we add 'float16_t' for tizen.

Change-Id: I248119d666c6c30cf5609bfc9a050c93cbfa6257

2 files changed, 9 insertions, 0 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index c2790ab..3d54d56 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -213,6 +213,8 @@ add_definitions(
   -D__DATE__="redacted"
   -D__TIMESTAMP__="redacted"
   -D__TIME__="redacted"
+  # To avoid build error in tizen, add define for submodules
+  -D__TIZEN__
 )
 
 # Avoid log spam from fopen etc.
diff --git a/third_party/highway/hwy/base.h b/third_party/highway/hwy/base.h
index 009373f..c9e0d0c 100644
--- a/third_party/highway/hwy/base.h
+++ b/third_party/highway/hwy/base.h
@@ -231,10 +231,17 @@ static constexpr HWY_MAYBE_UNUSED size_t kMaxVectorSize = 16;
 #if defined(HWY_EMULATE_SVE)
 using float16_t = FarmFloat16;
 #elif HWY_NATIVE_FLOAT16
+// Avoid "'__fp16' and '_Float16' not declared" build error
+#if defined(__TIZEN__)
+struct float16_t {
+  uint16_t bits;
+};
+#else
 using float16_t = __fp16;
 // Clang does not allow __fp16 arguments, but scalar.h requires LaneType
 // arguments, so use a wrapper.
 // TODO(janwas): replace with _Float16 when that is supported?
+#endif
 #else
 struct float16_t {
   uint16_t bits;