Use cosine to compute half sin (#1508)

* Use cosine to compute half sin

src/targets/gpu/kernels/include/migraphx/kernels/math.hpp

@@ -132,9 +132,14 @@ MIGRAPHX_DEVICE_MATH_FOR(float, fmod, ::fmodf)
 
 // Builtin half functions
 MIGRAPHX_DEVICE_MATH_FOR(migraphx::half, abs, ::__habs)
+MIGRAPHX_DEVICE_MATH_FOR(migraphx::half, ceil, ::hceil)
+MIGRAPHX_DEVICE_MATH_FOR(migraphx::half, cos, ::hcos)
 MIGRAPHX_DEVICE_MATH_FOR(migraphx::half, exp, ::hexp)
+MIGRAPHX_DEVICE_MATH_FOR(migraphx::half, floor, ::hfloor)
+MIGRAPHX_DEVICE_MATH_FOR(migraphx::half, isnan, ::__hisnan)
 MIGRAPHX_DEVICE_MATH_FOR(migraphx::half, log, ::hlog)
 MIGRAPHX_DEVICE_MATH_FOR(migraphx::half, rsqrt, ::hrsqrt)
+// MIGRAPHX_DEVICE_MATH_FOR(migraphx::half, sin, ::hsin)
 MIGRAPHX_DEVICE_MATH_FOR(migraphx::half, sqrt, ::hsqrt)
 
 // Use float to compute half overload
@@ -144,16 +149,11 @@ MIGRAPHX_DEVICE_MATH_HALF(asin, ::asin)
 MIGRAPHX_DEVICE_MATH_HALF(asinh, ::asinh)
 MIGRAPHX_DEVICE_MATH_HALF(atan, ::atan)
 MIGRAPHX_DEVICE_MATH_HALF(atanh, ::atanh)
-MIGRAPHX_DEVICE_MATH_HALF(ceil, ::ceil)
-MIGRAPHX_DEVICE_MATH_HALF(cos, ::cos)
 MIGRAPHX_DEVICE_MATH_HALF(cosh, ::cosh)
 MIGRAPHX_DEVICE_MATH_HALF(erf, ::erf)
-MIGRAPHX_DEVICE_MATH_HALF(floor, ::floor)
-MIGRAPHX_DEVICE_MATH_HALF(isnan, ::isnan)
 MIGRAPHX_DEVICE_MATH_HALF(pow, ::pow)
 MIGRAPHX_DEVICE_MATH_HALF(remainder, ::remainder)
 MIGRAPHX_DEVICE_MATH_HALF(round, ::round)
-MIGRAPHX_DEVICE_MATH_HALF(sin, ::sin)
 MIGRAPHX_DEVICE_MATH_HALF(sinh, ::sinh)
 MIGRAPHX_DEVICE_MATH_HALF(tan, ::tan)
 MIGRAPHX_DEVICE_MATH_HALF(tanh, ::tanh)
@@ -166,19 +166,19 @@ MIGRAPHX_DEVICE_MATH_HALF(fmod, ::fmod)
 // at this time are: exp2, exp10, log2, log10, isinf
 MIGRAPHX_DEVICE_MATH_HALF2(abs, ::__habs2)
 MIGRAPHX_DEVICE_MATH_HALF2(ceil, ::h2ceil)
-MIGRAPHX_DEVICE_MATH_HALF2(floor, ::h2floor)
-MIGRAPHX_DEVICE_MATH_HALF2(sin, ::h2sin)
 MIGRAPHX_DEVICE_MATH_HALF2(cos, ::h2cos)
 MIGRAPHX_DEVICE_MATH_HALF2(exp, ::h2exp)
-MIGRAPHX_DEVICE_MATH_HALF2(exp2, ::h2exp2)
 MIGRAPHX_DEVICE_MATH_HALF2(exp10, ::h2exp10)
-MIGRAPHX_DEVICE_MATH_HALF2(log2, ::h2log2)
+MIGRAPHX_DEVICE_MATH_HALF2(exp2, ::h2exp2)
+MIGRAPHX_DEVICE_MATH_HALF2(floor, ::h2floor)
+MIGRAPHX_DEVICE_MATH_HALF2(isinf, ::__hisinf2)
+MIGRAPHX_DEVICE_MATH_HALF2(isnan, ::__hisnan2)
 MIGRAPHX_DEVICE_MATH_HALF2(log, ::h2log)
 MIGRAPHX_DEVICE_MATH_HALF2(log10, ::h2log10)
+MIGRAPHX_DEVICE_MATH_HALF2(log2, ::h2log2)
 MIGRAPHX_DEVICE_MATH_HALF2(rsqrt, ::h2rsqrt)
+// MIGRAPHX_DEVICE_MATH_HALF2(sin, ::h2sin)
 MIGRAPHX_DEVICE_MATH_HALF2(sqrt, ::h2sqrt)
-MIGRAPHX_DEVICE_MATH_HALF2(isinf, ::__hisinf2)
-MIGRAPHX_DEVICE_MATH_HALF2(isnan, ::__hisnan2)
 
 template <class T, class U>
 constexpr auto where(bool cond, const T& a, const U& b)
@@ -218,6 +218,14 @@ constexpr auto min(const T& a, const U& b)
     return min<common_type_t<T, U>>(a, b);
 }
 
+// Sin for half is broken on hip, so use cos instead
+template <class T, MIGRAPHX_REQUIRES(is_same<vec_type<T>, half>{})>
+constexpr T sin(T x)
+{
+    constexpr const T shift = M_PI_2;
+    return migraphx::cos(shift - x);
+}
+
 MIGRAPHX_DEVICE_MATH_VEC(abs)
 MIGRAPHX_DEVICE_MATH_VEC(acos)
 MIGRAPHX_DEVICE_MATH_VEC(acosh)

test/verify/test_sin_half.cpp

+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015-2022 Advanced Micro Devices, Inc. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "verify_program.hpp"
+#include <migraphx/program.hpp>
+#include <migraphx/generate.hpp>
+#include <migraphx/make_op.hpp>
+
+struct test_sin_half : verify_program<test_sin_half>
+{
+    migraphx::program create_program() const
+    {
+        migraphx::program p;
+        auto* mm = p.get_main_module();
+        migraphx::shape s{migraphx::shape::half_type, {10}};
+        auto x = mm->add_parameter("x", s);
+        mm->add_instruction(migraphx::make_op("sin"), x);
+        return p;
+    }
+};