3 files changed, 93 insertions, 20 deletions
diff --git a/gcc/testsuite/gdc.test/compilable/shared.d b/gcc/testsuite/gdc.test/compilable/shared.d
index 695083a..647910e 100644
--- a/gcc/testsuite/gdc.test/compilable/shared.d
+++ b/gcc/testsuite/gdc.test/compilable/shared.d
@@ -11,34 +11,48 @@ ref shared(int) f(return shared ref int y)
 }
 
 // https://issues.dlang.org/show_bug.cgi?id=20908
+struct S
+{
+    int i = 2;
+}
+
+union U
+{
+    int i = 1;
+    bool b;
+}
+
 void test20908()
 {
-  // shared locals (or struct members) should be able to be initialised:
-  shared int x;
+    // shared locals (or struct members) should be able to be initialised:
+    shared int x;
 
-  ref shared(int) fun()
-  {
-    static shared(int) val;
+    ref shared(int) fun()
+    {
+        static shared(int) val;
 
-    // return by reference
-    return val;
-  }
+        // return by reference
+        return val;
+    }
 
-  ref shared(int) fun2()
-  {
-    static shared(int)* val;
+    ref shared(int) fun2()
+    {
+        static shared(int)* val;
 
-    // transfer pointer to reference
-    return *val;
-  }
+        // transfer pointer to reference
+        return *val;
+    }
 
-  ref shared(int) fun3()
-  {
-    static shared(int)*** val;
+    ref shared(int) fun3()
+    {
+        static shared(int)*** val;
+
+        // Multiple indirections
+        return ***val;
+    }
 
-    // Multiple indirections
-    return ***val;
-  }
+    shared S s;
+    shared U u;
 }
 
 // Simple tests for `DotVarExp`
@@ -130,3 +144,15 @@ void main()
 {
     auto b = new shared Class();
 }
+
+// https://issues.dlang.org/show_bug.cgi?id=23790
+bool cas(shared bool*, bool, bool) { return true; }
+
+struct Argh
+{
+    bool locked;
+    void lock() shared
+    {
+        while(!cas(&locked, false, true)) {}
+    }
+}
diff --git a/gcc/testsuite/gdc.test/compilable/test22739.d b/gcc/testsuite/gdc.test/compilable/test22739.d
new file mode 100644
index 0000000..6aeb5d6
--- /dev/null
+++ b/gcc/testsuite/gdc.test/compilable/test22739.d
@@ -0,0 +1,10 @@
+// https://issues.dlang.org/show_bug.cgi?id=22739
+
+extern(C++) auto f(T)()
+{
+    return T.init;
+}
+void main()
+{
+    f!int;
+}
diff --git a/gcc/testsuite/gdc.test/compilable/test23799.d b/gcc/testsuite/gdc.test/compilable/test23799.d
new file mode 100644
index 0000000..0073516
--- /dev/null
+++ b/gcc/testsuite/gdc.test/compilable/test23799.d
@@ -0,0 +1,37 @@
+// https://issues.dlang.org/show_bug.cgi?id=23799
+
+// REQUIRED_ARGS: -betterC
+
+struct Data
+{
+	Data[] range;
+	string test;
+}
+
+Data[] foo()
+{
+	Data[] ret;
+	if (__ctfe)
+	{
+		Data tmp;
+		tmp.range ~= Data.init;
+		ret ~= tmp;
+	}
+	return ret;
+}
+
+void func(Data dat)()
+{
+}
+
+void bar(Data dat)()
+{
+	if (dat.test.length)
+		func!(dat.range[0])();
+}
+
+extern (C) void main()
+{
+	static immutable data = foo();
+	bar!(data[0])();
+}