2 files changed, 21 insertions, 0 deletions
diff --git a/testsuite/gna/issue1810/repro.vhdl b/testsuite/gna/issue1810/repro.vhdl
new file mode 100644
index 000000000..9fa6e8412
--- /dev/null
+++ b/testsuite/gna/issue1810/repro.vhdl
@@ -0,0 +1,8 @@
+entity repro is
+end;
+
+architecture behav of repro is
+  constant t1: time := 10 ns mod 3 ns;
+begin
+  assert t1 = 1 ns severity failure;
+end;
diff --git a/testsuite/gna/issue1810/testsuite.sh b/testsuite/gna/issue1810/testsuite.sh
new file mode 100755
index 000000000..e2f34ef98
--- /dev/null
+++ b/testsuite/gna/issue1810/testsuite.sh
@@ -0,0 +1,13 @@
+#! /bin/sh
+
+. ../../testenv.sh
+
+analyze_failure repro.vhdl
+
+export GHDL_STD_FLAGS=--std=08
+analyze repro.vhdl
+elab_simulate repro
+
+clean
+
+echo "Test successful"