fix onnx tests

src/onnx/onnx.cpp

@@ -412,6 +412,8 @@ struct onnx_parser
             {
                 auto l3 = prog.add_instruction(op::dot{alpha}, l1, l2);
                 auto l4 = args[2];
+                if (l4->get_shape().scalar()) // ignore args[2] (no C value added to alpha*A*B)
+                    return l3;
                 if(beta != 1.f)
                 {
                     auto beta_val = prog.add_literal(beta);

test/onnx/onnx_test.cpp

@@ -351,8 +351,8 @@ TEST_CASE(implicit_bcast_test)
     migraphx::program p;
     auto l0 = p.add_parameter("0", migraphx::shape{migraphx::shape::float_type, {2, 3, 4, 5}});
     auto l1 = p.add_parameter("1", migraphx::shape{migraphx::shape::float_type, {3, 4}});
-    auto l2 = p.add_instruction(migraphx::op::multibroadcast{{0, 0, 4, 5}}, l0);
-    auto l3 = p.add_instruction(migraphx::op::multibroadcast{{0, 0, 4, 5}}, l1);
+    auto l2 = p.add_instruction(migraphx::op::multibroadcast{{2, 3, 4, 5}}, l0);
+    auto l3 = p.add_instruction(migraphx::op::multibroadcast{{2, 3, 4, 5}}, l1);
     p.add_instruction(migraphx::op::add{}, l2, l3);
 
     auto prog = migraphx::parse_onnx("implicit_bcast_test.onnx");
@@ -460,12 +460,11 @@ TEST_CASE(gemm_test)
     migraphx::program p;
     auto l0 = p.add_parameter("0", migraphx::shape{migraphx::shape::float_type, {5, 7}});
     auto l1 = p.add_parameter("1", migraphx::shape{migraphx::shape::float_type, {11, 5}});
-    auto l2 = p.add_parameter("2", migraphx::shape{migraphx::shape::float_type, {}});
+    p.add_parameter("2", migraphx::shape{migraphx::shape::float_type, {}});
     auto t0 = p.add_instruction(migraphx::op::transpose{{1, 0}}, l0);
     auto t1 = p.add_instruction(migraphx::op::transpose{{1, 0}}, l1);
-    auto d0 = p.add_instruction(migraphx::op::dot{2, 2}, t0, t1);
-    auto b0 = p.add_instruction(migraphx::op::broadcast{1, d0->get_shape()}, l2);
-    p.add_instruction(migraphx::op::add{}, d0, b0);
+    auto alpha = 2.f;
+    p.add_instruction(migraphx::op::dot{alpha}, t0, t1);
     auto prog = migraphx::parse_onnx("gemm_test.onnx");
 
     EXPECT(p == prog);
@@ -477,8 +476,8 @@ TEST_CASE(add_scalar_test)
     auto l0 = p.add_parameter("0", migraphx::shape{migraphx::shape::float_type, {2, 3, 4, 5}});
     auto l1 =
         p.add_literal(migraphx::literal{migraphx::shape{migraphx::shape::float_type, {1}}, {1}});
-    auto m0 = p.add_instruction(migraphx::op::multibroadcast{{0, 0, 0, 5}}, l0);
-    auto m1 = p.add_instruction(migraphx::op::multibroadcast{{0, 0, 0, 5}}, l1);
+    auto m0 = p.add_instruction(migraphx::op::multibroadcast{{2, 3, 4, 5}}, l0);
+    auto m1 = p.add_instruction(migraphx::op::multibroadcast{{2, 3, 4, 5}}, l1);
     p.add_instruction(migraphx::op::add{}, m0, m1);
     auto prog = migraphx::parse_onnx("add_scalar_test.onnx");