tests : cover lfm2 cases in test_ssm_conv (#14651)

Author: tdakhran

tests/test-backend-ops.cpp

@@ -5170,9 +5170,13 @@ static std::vector<std::unique_ptr<test_case>> make_test_cases_eval() {
 
     test_cases.emplace_back(new test_l2_norm(GGML_TYPE_F32, {64, 5, 4, 3}, 1e-12f));
 
-    test_cases.emplace_back(new test_ssm_conv(GGML_TYPE_F32, {4, 1536, 1, 1}, {4, 1536, 1, 1}));
-    test_cases.emplace_back(new test_ssm_conv(GGML_TYPE_F32, {8, 1536, 1, 1}, {4, 1536, 1, 1}));
-    test_cases.emplace_back(new test_ssm_conv(GGML_TYPE_F32, {4, 1536, 4, 1}, {4, 1536, 1, 1}));
+    for (int64_t d_conv : {3, 4}) {
+        for (int64_t d_inner: {1024, 1536, 2048}) {
+            test_cases.emplace_back(new test_ssm_conv(GGML_TYPE_F32, {4, d_inner, 1, 1}, {d_conv, d_inner, 1, 1}));
+            test_cases.emplace_back(new test_ssm_conv(GGML_TYPE_F32, {8, d_inner, 1, 1}, {d_conv, d_inner, 1, 1}));
+            test_cases.emplace_back(new test_ssm_conv(GGML_TYPE_F32, {4, d_inner, 4, 1}, {d_conv, d_inner, 1, 1}));
+        }
+    }
 
     test_cases.emplace_back(new test_ssm_scan(GGML_TYPE_F32, 16, 1, 1024, 1, 32, 4)); // Mamba-1
     test_cases.emplace_back(new test_ssm_scan(GGML_TYPE_F32, 128, 64, 16, 2, 32, 4)); // Mamba-2