From 6fc71835c3075aff4792b63bc38698cbe542f028 Mon Sep 17 00:00:00 2001
From: Veikka Tuominen <git@vexu.eu>
Date: Fri, 28 Oct 2022 00:07:38 +0300
Subject: [PATCH] value: properly hash `null_value` pointer

Closes #13325
---
 src/value.zig              | 1 +
 test/behavior/generics.zig | 9 +++++++++
 2 files changed, 10 insertions(+)

diff --git a/src/value.zig b/src/value.zig
index 28601c1723..7d01430103 100644
--- a/src/value.zig
+++ b/src/value.zig
@@ -2621,6 +2621,7 @@ pub const Value = extern union {
 
             .zero,
             .one,
+            .null_value,
             .int_u64,
             .int_i64,
             .int_big_positive,
diff --git a/test/behavior/generics.zig b/test/behavior/generics.zig
index 4a483ec0d5..9513118c19 100644
--- a/test/behavior/generics.zig
+++ b/test/behavior/generics.zig
@@ -396,3 +396,12 @@ test "slice as parameter type" {
     try expect(S.internComptimeString(source_a[1..2]) == S.internComptimeString(source_a[1..2]));
     try expect(S.internComptimeString(source_a[2..4]) != S.internComptimeString(source_a[5..7]));
 }
+
+test "null sentinel pointer passed as generic argument" {
+    const S = struct {
+        fn doTheTest(a: anytype) !void {
+            try std.testing.expect(@ptrToInt(a) == 8);
+        }
+    };
+    try S.doTheTest((@intToPtr([*:null]const [*c]const u8, 8)));
+}