5 files changed, 49 insertions, 0 deletions
diff --git a/tests/ccgbugs/t8964.nim b/tests/ccgbugs/t8964.nim
new file mode 100644
index 000000000..5b41e8bdb
--- /dev/null
+++ b/tests/ccgbugs/t8964.nim
@@ -0,0 +1,10 @@
+discard """
+  targets: "c cpp"
+"""
+
+from json import JsonParsingError
+import marshal
+
+const nothing = ""
+doAssertRaises(JsonParsingError):
+  var bar = marshal.to[int](nothing)
diff --git a/tests/ccgbugs/t8967.nim b/tests/ccgbugs/t8967.nim
new file mode 100644
index 000000000..e342b7eae
--- /dev/null
+++ b/tests/ccgbugs/t8967.nim
@@ -0,0 +1,10 @@
+discard """
+  targets: "c cpp"
+"""
+
+import marshal
+
+let orig: set[char] = {'A'..'Z'}
+let m = $$orig
+let old = to[set[char]](m)
+doAssert orig - old == {}
diff --git a/tests/ccgbugs/tborrowmagic.nim b/tests/ccgbugs/tborrowmagic.nim
new file mode 100644
index 000000000..8d42ddcd8
--- /dev/null
+++ b/tests/ccgbugs/tborrowmagic.nim
@@ -0,0 +1,8 @@
+type
+  Bytes = distinct seq[byte]
+
+proc add(x: var Bytes; b: byte) {.borrow.}
+var x = @[].Bytes
+x.add(42)
+let base = cast[seq[byte]](x)
+doAssert base.len == 1 and base[0] == 42
diff --git a/tests/ccgbugs/tcodegendecllambda.nim b/tests/ccgbugs/tcodegendecllambda.nim
new file mode 100644
index 000000000..6dce68db5
--- /dev/null
+++ b/tests/ccgbugs/tcodegendecllambda.nim
@@ -0,0 +1,13 @@
+discard """
+  targets: "c cpp js"
+  ccodecheck: "'HELLO'"
+"""
+
+when defined(JS):
+  var foo = proc(): void{.codegenDecl: "/*HELLO*/function $2($3)".} =
+    echo "baa"
+else:
+  var foo = proc(): void{.codegenDecl: "/*HELLO*/$1 $2 $3".} =
+    echo "baa"
+
+foo()
diff --git a/tests/ccgbugs/thtiobj.nim b/tests/ccgbugs/thtiobj.nim
new file mode 100644
index 000000000..7a656905f
--- /dev/null
+++ b/tests/ccgbugs/thtiobj.nim
@@ -0,0 +1,8 @@
+discard """
+  targets: "c cpp"
+"""
+
+import typeinfo
+
+var x = ""
+discard (getPointer(toAny(x)))