From a46fc9f028ab36c142314a544598c9d4ac522141 Mon Sep 17 00:00:00 2001
From: tangxifan <tangxifan@gmail.com>
Date: Fri, 20 Mar 2020 14:59:46 -0600
Subject: [PATCH] add debugging information for tile direct builder

---
 openfpga/src/tile_direct/build_tile_direct.cpp              | 6 +++++-
 .../k6_frac_N10_adder_chain_40nm_openfpga.xml               | 3 +++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/openfpga/src/tile_direct/build_tile_direct.cpp b/openfpga/src/tile_direct/build_tile_direct.cpp
index 676fa8291..ba426ce17 100644
--- a/openfpga/src/tile_direct/build_tile_direct.cpp
+++ b/openfpga/src/tile_direct/build_tile_direct.cpp
@@ -656,7 +656,11 @@ TileDirect build_device_tile_direct(const DeviceContext& device_ctx,
   /* Walk through each direct definition in the VPR arch */
   for (int idirect = 0; idirect < device_ctx.arch->num_directs; ++idirect) {
     ArchDirectId arch_direct_id = arch_direct.direct(std::string(device_ctx.arch->Directs[idirect].name));
-    VTR_ASSERT(ArchDirectId::INVALID() != arch_direct_id);
+    if (ArchDirectId::INVALID() == arch_direct_id) {
+      VTR_LOG_ERROR("Unable to find an annotation in openfpga architecture XML for <direct> '%s'!\n",
+                    device_ctx.arch->Directs[idirect].name);
+      exit(1);
+    }
     /* Build from original VPR arch definition */
     build_inner_column_row_tile_direct(tile_direct,
                                        device_ctx.arch->Directs[idirect],
diff --git a/openfpga/test_openfpga_arch/k6_frac_N10_adder_chain_40nm_openfpga.xml b/openfpga/test_openfpga_arch/k6_frac_N10_adder_chain_40nm_openfpga.xml
index ed0de93f1..2b340168e 100644
--- a/openfpga/test_openfpga_arch/k6_frac_N10_adder_chain_40nm_openfpga.xml
+++ b/openfpga/test_openfpga_arch/k6_frac_N10_adder_chain_40nm_openfpga.xml
@@ -209,6 +209,9 @@
   <routing_segment>
     <segment name="L4" circuit_model_name="chan_segment"/>
   </routing_segment>
+  <direct_connection>
+    <direct name="adder" circuit_model_name="direct_interc" type="column" x_dir="positive" y_dir="positive"/>
+  </direct_connection>
   <pb_type_annotations>
     <!-- physical pb_type binding in complex block IO -->
     <pb_type name="io" physical_mode_name="physical" idle_mode_name="inpad"/>