vulkan: fix build when using glslang that does not support coopmat2 (#15062)

ggml/src/ggml-vulkan/ggml-vulkan.cpp

@@ -3096,9 +3096,11 @@ static void ggml_vk_load_shaders(vk_device& device) {
         uint32_t conv2d_SHMEM_PAD = 4;
         bool conv2d_UNROLL = true;
 
+#if defined(GGML_VULKAN_COOPMAT2_GLSLC_SUPPORT)
         if (device->coopmat2) {
             conv2d_SHMEM_PAD = 8; // 8 float16_t
         }
+#endif
 
         if (device->vendor_id == VK_VENDOR_ID_INTEL) {
             conv2d_SHMEM_PAD = 0;
@@ -3158,6 +3160,7 @@ static void ggml_vk_load_shaders(vk_device& device) {
         std::array<uint32_t, 3> wg_denoms = { conv2d_BS_K, conv2d_BS_NPQ, 1 };
         std::vector<uint32_t> spec_constants = { conv2d_WG_SIZE, conv2d_BS_K, conv2d_BS_CRS, conv2d_BS_NPQ, conv2d_TS_K, use_collectives, conv2d_SHMEM_PAD };
 
+#if defined(GGML_VULKAN_COOPMAT2_GLSLC_SUPPORT)
         if (device->coopmat2) {
             ggml_vk_create_pipeline(
                 device, device->pipeline_conv2d_f32[s], "conv2d_f32", conv2d_f32_cm2_len, conv2d_f32_cm2_data, "main", 3,
@@ -3165,7 +3168,9 @@ static void ggml_vk_load_shaders(vk_device& device) {
             ggml_vk_create_pipeline(
                 device, device->pipeline_conv2d_f16_f32[s], "conv2d_f16_f32", conv2d_f16_f32_cm2_len, conv2d_f16_f32_cm2_data, "main", 3,
                 sizeof(vk_op_conv2d_push_constants), wg_denoms, spec_constants, 1, true, use_collectives);
-        } else if (conv2d_UNROLL) {
+        } else
+#endif
+        if (conv2d_UNROLL) {
             ggml_vk_create_pipeline(
                 device, device->pipeline_conv2d_f32[s], "conv2d_f32", conv2d_f32_unroll_len, conv2d_f32_unroll_data, "main", 3,
                 sizeof(vk_op_conv2d_push_constants), wg_denoms, spec_constants, 1, true, use_collectives);

ggml/src/ggml-vulkan/vulkan-shaders/vulkan-shaders-gen.cpp

@@ -661,8 +661,10 @@ void process_shaders() {
     string_to_spv("conv2d_f32", "conv2d_mm.comp", {{"A_TYPE", "float"}, {"B_TYPE", "float"}, {"D_TYPE", "float"}, {"USE_COLLECTIVES", "1"}, {"UNROLL", ""}});
     string_to_spv("conv2d_f16_f32", "conv2d_mm.comp", {{"A_TYPE", "float16_t"}, {"B_TYPE", "float"}, {"D_TYPE", "float"}, {"USE_COLLECTIVES", "1"}, {"UNROLL", ""}});
 
+#if defined(GGML_VULKAN_COOPMAT2_GLSLC_SUPPORT)
     string_to_spv("conv2d_f32", "conv2d_mm.comp", {{"A_TYPE", "float"}, {"B_TYPE", "float"}, {"D_TYPE", "float"}, {"USE_COLLECTIVES", "1"}, {"UNROLL", "[[unroll]]"}, {"COOPMAT2", "1"}}, true, false, true);
     string_to_spv("conv2d_f16_f32", "conv2d_mm.comp", {{"A_TYPE", "float16_t"}, {"B_TYPE", "float"}, {"D_TYPE", "float"}, {"USE_COLLECTIVES", "1"}, {"UNROLL", "[[unroll]]"}, {"COOPMAT2", "1"}}, true, false, true);
+#endif
 
     string_to_spv("conv2d_dw_whcn_f32", "conv2d_dw.comp", merge_maps(base_dict, {{"A_TYPE", "float"}, {"B_TYPE", "float"}, {"D_TYPE", "float"}, {"WHCN", "1"}}));
     string_to_spv("conv2d_dw_cwhn_f32", "conv2d_dw.comp", merge_maps(base_dict, {{"A_TYPE", "float"}, {"B_TYPE", "float"}, {"D_TYPE", "float"}, {"CWHN", "1"}}));