In mcs:

	Fix #74934.
	* expression.cs (BinaryResolveOperator): If one of the operands of
	an equality comparison is 'null' and the other is a pointer type,
	convert the null to a NullPointer.
	* convert.cs (ImplicitReferenceConversion): If the expression is a
	NullLiteral and the target type is a pointer type, return a
	NullPointer instead.
	(ImplicitConversionStandard): Likewise.

In tests:
	* test-380.cs: New test from #74934.

svn path=/trunk/mcs/; revision=44495

1 files changed, 11 insertions, 0 deletions

diff --git a/mcs/tests/test-380.cs b/mcs/tests/test-380.cs
new file mode 100644
index 00000000000..1122b48f2d8
--- /dev/null
+++ b/mcs/tests/test-380.cs
@@ -0,0 +1,11 @@
+// Compiler options: -unsafe
+
+class T {
+        static unsafe int Main () {
+                int *a = null;
+                int **b = &a;
+                if (*b == null)
+                        return 0;
+                return 1;
+        }
+}