5 files changed, 99 insertions, 0 deletions
diff --git a/testsuite/gna/bug0105/econcat1.vhdl b/testsuite/gna/bug0105/econcat1.vhdl
new file mode 100644
index 000000000..2cc80027d
--- /dev/null
+++ b/testsuite/gna/bug0105/econcat1.vhdl
@@ -0,0 +1,20 @@
+entity econcat1 is
+end econcat1;
+
+architecture behav of econcat1 is
+  constant c1 : string (1 to 5) := "hello";
+  constant c2 : string (6 downto 1) := " world";
+  constant r : string := c1 & c2;
+begin
+  process
+  begin
+    case True is
+      when c1 & c2 = "hello world" => null;
+      when false => null;
+    end case;
+
+    assert r'left = 1 severity failure;
+    assert r'right = 11 severity failure;
+    wait;
+  end process;
+end;
diff --git a/testsuite/gna/bug0105/econcat1_87.vhdl b/testsuite/gna/bug0105/econcat1_87.vhdl
new file mode 100644
index 000000000..71daeac4b
--- /dev/null
+++ b/testsuite/gna/bug0105/econcat1_87.vhdl
@@ -0,0 +1,20 @@
+entity econcat1_87 is
+end econcat1_87;
+
+architecture behav of econcat1_87 is
+  constant c1 : string (21 downto 17) := "hello";
+  constant c2 : string (6 downto 1) := " world";
+  constant r : string := c1 & c2;
+begin
+  process
+  begin
+    case True is
+      when c1 & c2 = "hello world" => null;
+      when false => null;
+    end case;
+
+    assert r'left = 21 severity failure;
+    assert r'right = 11 severity failure;
+    wait;
+  end process;
+end;
diff --git a/testsuite/gna/bug0105/econcat2.vhdl b/testsuite/gna/bug0105/econcat2.vhdl
new file mode 100644
index 000000000..8c343d2c4
--- /dev/null
+++ b/testsuite/gna/bug0105/econcat2.vhdl
@@ -0,0 +1,17 @@
+entity econcat2 is
+end econcat2;
+
+architecture behav of econcat2 is
+  constant c1 : string (1 to 5) := "hello";
+  constant c2 : string (6 downto 1) := " world";
+  constant r : string := c1 & c2;
+begin
+  process
+  begin
+    case True is
+      when "&" (c1, c2) = "hello world" => null;
+      when false => null;
+    end case;
+    wait;
+  end process;
+end;
diff --git a/testsuite/gna/bug0105/econcat2_87.vhdl b/testsuite/gna/bug0105/econcat2_87.vhdl
new file mode 100644
index 000000000..7b297f983
--- /dev/null
+++ b/testsuite/gna/bug0105/econcat2_87.vhdl
@@ -0,0 +1,20 @@
+entity econcat2_87 is
+end econcat2_87;
+
+architecture behav of econcat2_87 is
+  constant c1 : string (21 downto 17) := "hello";
+  constant c2 : string (6 downto 1) := " world";
+  constant r : string := "" & c1 & "" & c2;
+begin
+  process
+  begin
+    case True is
+      when c1 & c2 = "hello world" => null;
+      when false => null;
+    end case;
+
+    assert r'left = 21 severity failure;
+    assert r'right = 11 severity failure;
+    wait;
+  end process;
+end;
diff --git a/testsuite/gna/bug0105/testsuite.sh b/testsuite/gna/bug0105/testsuite.sh
new file mode 100755
index 000000000..a9a64b8f6
--- /dev/null
+++ b/testsuite/gna/bug0105/testsuite.sh
@@ -0,0 +1,22 @@
+#! /bin/sh
+
+. ../../testenv.sh
+
+analyze econcat1.vhdl
+elab_simulate econcat1
+
+analyze econcat2.vhdl
+elab_simulate econcat2
+
+clean
+
+GHDL_STD_FLAGS="--std=87"
+
+analyze econcat1_87.vhdl
+elab_simulate econcat1_87
+
+analyze econcat2_87.vhdl
+elab_simulate econcat2_87
+
+clean
+echo "Test successful"