4 files changed, 71 insertions, 0 deletions
diff --git a/testsuite/gna/issue258/length_tb1.vhdl b/testsuite/gna/issue258/length_tb1.vhdl
new file mode 100644
index 000000000..af2a08a8f
--- /dev/null
+++ b/testsuite/gna/issue258/length_tb1.vhdl
@@ -0,0 +1,16 @@
+entity length_tb1 is
+end length_tb1;
+
+architecture tb of length_tb1 is
+begin
+  process
+    variable s : string (1 to 4);
+    constant c : string := "hello";
+  begin
+
+    -- Behaves like 32-bit arithmetic with modular truncation
+    s := c;
+
+    wait; -- forever
+  end process;
+end tb;
diff --git a/testsuite/gna/issue258/range_tb.vhdl b/testsuite/gna/issue258/range_tb.vhdl
new file mode 100644
index 000000000..ceb8cc8cb
--- /dev/null
+++ b/testsuite/gna/issue258/range_tb.vhdl
@@ -0,0 +1,24 @@
+entity range_tb is
+end range_tb;
+
+architecture tb of range_tb is
+begin
+  process
+    variable i : integer;
+  begin
+
+    -- Behaves like 32-bit arithmetic with modular truncation
+    i := integer'low;
+    report integer'image(i);
+    i := integer'low-1;
+    report integer'image(i);
+
+    -- Produces the error "overflow detected"
+    i := integer'low;
+    report integer'image(i);
+    i := i-1;
+    report integer'image(i);
+
+    wait; -- forever
+  end process;
+end tb;
diff --git a/testsuite/gna/issue258/range_tb1.vhdl b/testsuite/gna/issue258/range_tb1.vhdl
new file mode 100644
index 000000000..6d67d8c42
--- /dev/null
+++ b/testsuite/gna/issue258/range_tb1.vhdl
@@ -0,0 +1,18 @@
+entity range_tb1 is
+end range_tb1;
+
+architecture tb of range_tb1 is
+begin
+  process
+    variable i : integer;
+  begin
+
+    -- Behaves like 32-bit arithmetic with modular truncation
+    i := integer'low;
+    report integer'image(i);
+    i := integer'low-1;
+    report integer'image(i);
+
+    wait; -- forever
+  end process;
+end tb;
diff --git a/testsuite/gna/issue258/testsuite.sh b/testsuite/gna/issue258/testsuite.sh
new file mode 100755
index 000000000..9adbbdc66
--- /dev/null
+++ b/testsuite/gna/issue258/testsuite.sh
@@ -0,0 +1,13 @@
+#! /bin/sh
+
+. ../../testenv.sh
+
+analyze range_tb1.vhdl
+elab_simulate_failure range_tb1
+
+analyze range_tb.vhdl
+elab_simulate_failure range_tb
+
+clean
+
+echo "Test successful"