change one of the shape constructors to simplify code.

src/include/migraphx/operators.hpp

@@ -768,7 +768,7 @@ struct gather
         // for scalar output
         if(lens.empty())
         {
-            return {type, {1}, {0}};
+            return {type};
         }
 
         return {type, lens};

src/onnx/onnx.cpp

@@ -439,7 +439,7 @@ struct onnx_parser
         // if dim_size is 0, it is a scalar
         if(dim_size == 0)
         {
-            migraphx::shape scalar_shape{v.get_shape().type(), {1}, {0}};
+            migraphx::shape scalar_shape{v.get_shape().type()};
             return prog.add_literal(migraphx::literal{scalar_shape, v.data()});
         }
 

src/shape.cpp

@@ -19,7 +19,7 @@ struct shape_impl
 
     shape_impl() : m_type(shape::float_type), m_standard(false) {}
 
-    shape_impl(shape::type_t t) : m_type(t), m_lens({1}), m_strides({1}), m_standard(true) {}
+    shape_impl(shape::type_t t) : m_type(t), m_lens({1}), m_strides({0}), m_standard(true) {}
     shape_impl(shape::type_t t, std::vector<std::size_t> l)
         : m_type(t), m_lens(std::move(l)), m_standard(true)
     {

test/cpu_ops_test.cpp

@@ -173,7 +173,7 @@ TEST_CASE(gather_test)
         migraphx::shape s{migraphx::shape::float_type, {3, 3}};
         auto a0 = p.add_literal(migraphx::literal{s, data});
         // scalar index
-        migraphx::shape s_indices{migraphx::shape::int32_type, {1}, {0}};
+        migraphx::shape s_indices{migraphx::shape::int32_type};
         std::vector<int> indices{0};
         auto a1  = p.add_literal(migraphx::literal{s_indices, indices});
         int axis = -1;
@@ -194,7 +194,7 @@ TEST_CASE(gather_test)
         migraphx::shape s{migraphx::shape::float_type, {3}};
         auto a0 = p.add_literal(migraphx::literal{s, data});
         // scalar index
-        migraphx::shape s_indices{migraphx::shape::int32_type, {1}, {0}};
+        migraphx::shape s_indices{migraphx::shape::int32_type};
         std::vector<int> indices{0};
         auto a1  = p.add_literal(migraphx::literal{s_indices, indices});
         int axis = -1;

test/gpu/miopen.cpp

@@ -1074,7 +1074,7 @@ struct test_gather_scalar_output
     {
         migraphx::program p;
         migraphx::shape s{migraphx::shape::float_type, {3}};
-        migraphx::shape s_indices{migraphx::shape::int32_type, {1}, {0}};
+        migraphx::shape s_indices{migraphx::shape::int32_type};
         std::vector<int> indices{1};
         auto a0  = p.add_parameter("data", s);
         auto a1  = p.add_literal(migraphx::literal{s_indices, indices});
@@ -1090,7 +1090,7 @@ struct test_gather_scalar_index
     {
         migraphx::program p;
         migraphx::shape s{migraphx::shape::float_type, {3, 3}};
-        migraphx::shape s_indices{migraphx::shape::int32_type, {1}, {0}};
+        migraphx::shape s_indices{migraphx::shape::int32_type};
         std::vector<int> indices{1};
         auto a0  = p.add_parameter("data", s);
         auto a1  = p.add_literal(migraphx::literal{s_indices, indices});

test/onnx/onnx_test.cpp

@@ -524,7 +524,7 @@ TEST_CASE(constant_test)
 TEST_CASE(constant_test_scalar)
 {
     migraphx::program p;
-    p.add_literal(migraphx::literal{migraphx::shape{migraphx::shape::int32_type, {1}, {0}}, {1}});
+    p.add_literal(migraphx::literal{migraphx::shape{migraphx::shape::int32_type}, {1}});
     auto prog = migraphx::parse_onnx("constant_scalar.onnx");
 
     EXPECT(p == prog);

test/op_shape_test.cpp

@@ -263,7 +263,7 @@ TEST_CASE(gather)
 
     {
         migraphx::shape input{migraphx::shape::float_type, {2, 3, 4, 5}};
-        migraphx::shape indices{migraphx::shape::int32_type, {1}, {0}};
+        migraphx::shape indices{migraphx::shape::int32_type};
         int axis = -4;
         expect_shape(migraphx::shape{migraphx::shape::float_type, {3, 4, 5}},
                      migraphx::op::gather{axis},
@@ -273,7 +273,7 @@ TEST_CASE(gather)
 
     {
         migraphx::shape input{migraphx::shape::float_type, {2, 3, 4, 5}};
-        migraphx::shape indices{migraphx::shape::int32_type, {1}, {0}};
+        migraphx::shape indices{migraphx::shape::int32_type};
         int axis = 3;
         expect_shape(migraphx::shape{migraphx::shape::float_type, {2, 3, 4}},
                      migraphx::op::gather{axis},
@@ -283,9 +283,9 @@ TEST_CASE(gather)
 
     {
         migraphx::shape input{migraphx::shape::float_type, {3}};
-        migraphx::shape indices{migraphx::shape::int32_type, {1}, {0}};
+        migraphx::shape indices{migraphx::shape::int32_type};
         int axis = 0;
-        expect_shape(migraphx::shape{migraphx::shape::float_type, {1}, {0}},
+        expect_shape(migraphx::shape{migraphx::shape::float_type},
                      migraphx::op::gather{axis},
                      input,
                      indices);