From: Tianqi Chen <tqchen@users.noreply.github.com>
Date: Wed, 12 Aug 2020 00:32:57 +0000 (-0700)
Subject: Revert "fix cuda half math function is undefined: hpow, htanh (#6225)" (#6249)
X-Git-Tag: upstream/0.7.0~271
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7174ac27c670c84c3b4a9783649f3e9e31754dd9;p=platform%2Fupstream%2Ftvm.git

Revert "fix cuda half math function is undefined: hpow, htanh (#6225)" (#6249)

This reverts commit ed04cdd35f1990959ec788be0131b1388fd11d31.
---

diff --git a/src/target/source/literal/cuda_half_t.h b/src/target/source/literal/cuda_half_t.h
index 422d2c0..baf4ba7 100644
--- a/src/target/source/literal/cuda_half_t.h
+++ b/src/target/source/literal/cuda_half_t.h
@@ -293,19 +293,6 @@ __pack_half2(const half x, const half y) {
   unsigned v1 = *((unsigned short *)&y);
   return (v1 << 16) | v0;
 }
-
-static inline __device__ __host__ half hpow(half x, half y) {
-  float tmp_x = __half2float(x);
-  float tmp_y = __half2float(y);
-  float result = powf(tmp_x, tmp_y);
-  return __float2half(result);
-}
-
-static inline __device__ __host__ half htanh(half x) {
-  float tmp_x = __half2float(x);
-  float result = tanhf(tmp_x);
-  return __float2half(result);
-}
 )";
 
 static constexpr const char* _cuda_warp_intrinsic_util = R"(