Add missing files

src/targets/gpu/device/mul_add.cpp

+#include <migraphx/gpu/device/add_relu.hpp>
+#include <migraphx/gpu/device/nary.hpp>
+
+namespace migraphx {
+inline namespace MIGRAPHX_INLINE_NS {
+namespace gpu {
+namespace device {
+
+void mul_add(hipStream_t stream,
+              const argument& result,
+              const argument& arg1,
+              const argument& arg2,
+              const argument& arg3)
+{
+    nary(stream, result, arg1, arg2, arg3)(
+        [](auto x, auto a, auto b) { return a*x + b; });
+}
+
+} // namespace device
+} // namespace gpu
+} // namespace MIGRAPHX_INLINE_NS
+} // namespace migraphx

src/targets/gpu/include/migraphx/gpu/device/mul_add.hpp

+
+#ifndef MIGRAPHX_GUARD_RTGLIB_DEVICE_MUL_ADD_HPP
+#define MIGRAPHX_GUARD_RTGLIB_DEVICE_MUL_ADD_HPP
+
+#include <migraphx/argument.hpp>
+#include <migraphx/config.hpp>
+#include <hip/hip_runtime_api.h>
+
+namespace migraphx {
+inline namespace MIGRAPHX_INLINE_NS {
+namespace gpu {
+namespace device {
+
+void mul_add(hipStream_t stream,
+              const argument& result,
+              const argument& arg1,
+              const argument& arg2,
+              const argument& arg3);
+
+} // namespace device
+} // namespace gpu
+} // namespace MIGRAPHX_INLINE_NS
+} // namespace migraphx
+
+#endif