Change parse gemm, remove test

src/onnx/parse_gemm.cpp

@@ -90,28 +90,29 @@ struct parse_gemm : op_parser<parse_gemm>
                     ? info.add_instruction(make_op("transpose", {{"permutation", perm}}), args[1])
                     : args[1];
 
-        auto ret = info.add_instruction(make_op("dot"), a_arg, b_arg);
+        auto dot_ins = info.add_instruction(make_op("dot"), a_arg, b_arg);
 
         if(args.size() == 3)
         {
-            // TODO: support dynamic C input
-            if(std::any_of(args.cbegin(), args.cend(), [](auto in_arg) {
-                   return in_arg->get_shape().dynamic();
-               }))
+            if(not float_equal(beta, 0.0f))
             {
-                MIGRAPHX_THROW("PARSE_GEMM: C input not handled for dynamic input shapes");
+                auto c_arg = args[2];
+                if(dot_ins->get_shape().dynamic())
+                {
+                    c_arg = info.add_instruction(make_op("multibroadcast"), args[2], dot_ins);
                 }
-            if(not float_equal(beta, 0.0f) and args[2]->get_shape().elements() > 0)
+                else
                 {
                     auto out_lens   = a_arg->get_shape().lens();
                     out_lens.back() = b_arg->get_shape().lens().back();
-                auto c_arg      = args[2];
                     auto c_lens     = c_arg->get_shape().lens();
-                if(not std::equal(out_lens.begin(), out_lens.end(), c_lens.begin(), c_lens.end()))
+                    if(not std::equal(
+                           out_lens.begin(), out_lens.end(), c_lens.begin(), c_lens.end()))
                     {
                         c_arg = info.add_instruction(
                             make_op("multibroadcast", {{"out_lens", out_lens}}), args[2]);
                     }
+                }
                 auto beta_literal = info.add_literal(beta);
                 auto beta_c       = info.add_broadcastable_binary_op("mul", c_arg, beta_literal);
                 if(beta_c->get_shape().type() != dot_type)
@@ -120,11 +121,10 @@ struct parse_gemm : op_parser<parse_gemm>
                                                   beta_c);
                 }
 
-                return info.add_instruction(make_op("add"), ret, beta_c);
+                return info.add_instruction(make_op("add"), dot_ins, beta_c);
             }
         }
-
-        return ret;
+        return dot_ins;
     }
 };
 

test/onnx/onnx_test.cpp

@@ -2278,13 +2278,6 @@ TEST_CASE(gemm_dyn_outer_test)
     EXPECT(p == prog);
 }
 
-TEST_CASE(gemm_dyn_C_error)
-{
-    migraphx::onnx_options options;
-    options.default_dyn_dim_value = {1, 4, 0};
-    EXPECT(test::throws([&] { migraphx::parse_onnx("gemm_dyn_C_error.onnx", options); }));
-}
-
 TEST_CASE(gemm_rank_error)
 {
     EXPECT(test::throws([&] { migraphx::parse_onnx("gemm_rank_error.onnx"); }));