3 files changed, 174 insertions, 0 deletions
diff --git a/testsuite/gna/issue1779/repro1.vhdl b/testsuite/gna/issue1779/repro1.vhdl
new file mode 100644
index 000000000..a330675bc
--- /dev/null
+++ b/testsuite/gna/issue1779/repro1.vhdl
@@ -0,0 +1,31 @@
+entity repro1 is
+end;
+
+architecture rtl of repro1 is
+  signal v_32 : integer := 1;
+  signal v_8 : integer range 0 to 255;
+  signal res : integer;
+  signal clk   :  bit;
+begin
+   process
+   begin
+     clk <= '0';
+     for i in 1 to 5 * 2 loop
+       wait for 10 ns;
+       clk <= not clk;
+     end loop;
+     wait;
+   end process;
+
+   process (v_32) is
+   begin
+     report "V_32=" & integer'image (v_32);
+   end process;
+
+   process (v_8) is
+   begin
+     report "V_8=" & integer'image (v_8);
+   end process;
+
+   res <= v_32 + v_8;
+end rtl;
diff --git a/testsuite/gna/issue1779/testsuite.sh b/testsuite/gna/issue1779/testsuite.sh
new file mode 100755
index 000000000..288e383a7
--- /dev/null
+++ b/testsuite/gna/issue1779/testsuite.sh
@@ -0,0 +1,26 @@
+#! /bin/sh
+
+. ../../testenv.sh
+
+# From issue 531
+
+analyze repro1.vhdl
+elab repro1
+
+if c_compiler_is_available && ghdl_has_feature repro1 vpi; then
+  $GHDL --vpi-compile -v gcc -c vpi1.c
+  $GHDL --vpi-link -v gcc -o vpi1.vpi vpi1.o
+
+  add_vpi_path
+
+  simulate repro1 --vpi=./vpi1.vpi | tee repro1.out
+  if grep -q Error repro1.out; then
+      echo "Error in output"
+      exit 1;
+  fi
+
+  rm -f vpi1.vpi vpi1.o sliced_ex.out
+fi
+clean
+
+echo "Test successful"
diff --git a/testsuite/gna/issue1779/vpi1.c b/testsuite/gna/issue1779/vpi1.c
new file mode 100644
index 000000000..59e8550ed
--- /dev/null
+++ b/testsuite/gna/issue1779/vpi1.c
@@ -0,0 +1,117 @@
+#include <stdio.h>
+#include <string.h>
+#include <vpi_user.h>
+
+struct net_descs
+{
+  const char *name;
+  vpiHandle *handle;
+};
+
+static vpiHandle clk, v_32, v_8, res;
+static int cnt;
+
+static struct net_descs nets[] = {
+  { "repro1.clk", &clk},
+  { "repro1.v_32", &v_32},
+  { "repro1.v_8", &v_8},
+  { "repro1.res", &res},
+  { NULL, NULL}
+};
+
+static PLI_INT32
+vpi_clk_proc(p_cb_data data)
+{
+  s_vpi_value val;
+
+  val.format = vpiBinStrVal;
+  vpi_get_value (clk, &val);
+  /* Detect edge.  */
+  if (strcmp (val.value.str, "1") != 0)
+    return 0;
+
+  val.format = vpiBinStrVal;
+  vpi_get_value (res, &val);
+  printf ("cycle %d: res = %s\n", cnt, val.value.str);
+
+  switch (cnt)
+    {
+    case 0:
+      val.format = vpiBinStrVal;
+      val.value.str = "0001";
+      vpi_put_value (v_32, &val, NULL, vpiNoDelay);
+      val.format = vpiBinStrVal;
+      val.value.str = "0010";
+      vpi_put_value (v_8, &val, NULL, vpiNoDelay);
+      break;
+    case 2:
+      val.format = vpiBinStrVal;
+      val.value.str = "0010";
+      vpi_put_value (v_32, &val, NULL, vpiNoDelay);
+      val.format = vpiBinStrVal;
+      val.value.str = "0011";
+      vpi_put_value (v_8, &val, NULL, vpiNoDelay);
+      break;
+    case 3:
+      if (strcmp(val.value.str, "00000000000000000000000000000101") != 0)
+	printf ("Error!\n");
+      val.format = vpiIntVal;
+      val.value.integer = 123;
+      vpi_put_value (v_32, &val, NULL, vpiNoDelay);
+      break;
+    case 4:
+      if (strcmp(val.value.str, "00000000000000000000000001111110") != 0)
+	printf ("Error!\n");
+      break;
+    default:
+      break;
+    }
+
+  cnt++;
+  return 0;
+}
+
+static PLI_INT32
+vpi_start_proc(p_cb_data data)
+{
+  s_vpi_value val;
+  s_cb_data cb;
+  int i;
+
+  for (i = 0; nets[i].name; i++)
+    {
+      *nets[i].handle = vpi_handle_by_name ((char *)nets[i].name, NULL);
+      if (*nets[i].handle == NULL)
+	{
+	  printf ("cannot get net %s\n", nets[i].name);
+	  return 0;
+	}
+    }
+
+  cb.reason = cbValueChange;
+  cb.cb_rtn = &vpi_clk_proc;
+  cb.user_data = NULL;
+  cb.obj = clk;
+  if (vpi_register_cb (&cb) == NULL)
+    vpi_printf ("cannot register ValueChange call back\n");
+
+  return 0;
+}
+
+static void
+my_handle_register(void)
+{
+  s_cb_data cb;
+
+  cb.reason = cbStartOfSimulation;
+  cb.cb_rtn = &vpi_start_proc;
+  cb.user_data = NULL;
+  if (vpi_register_cb (&cb) == NULL)
+    vpi_printf ("cannot register StartOfSimulation call-back\n");
+}
+
+void (*vlog_startup_routines[]) () =
+{
+  my_handle_register,
+  0
+};