change type for alpha beta

src/targets/gpu/gemm_impl.cpp

@@ -83,13 +83,9 @@ void gemm_impl(context& ctx,
     auto a_lens = args[0].get_shape().lens();
     auto b_lens = args[1].get_shape().lens();
     output_shape.visit_type([&](auto as) {
-        auto alpha_r = as(alpha);
-        auto beta_r  = as(beta);
-        if(compute_fp32)
-        {
-            alpha_r = alpha;
-            beta_r  = beta;
-        }
+        auto alpha_r = compute_fp32 ? alpha : as(alpha);
+        auto beta_r  = compute_fp32 ? beta : as(beta);
+
         auto out_lens   = output_shape.lens();
         rocblas_int m   = out_lens[dim_0];
         rocblas_int n   = out_lens[dim_1];