From 106f1311d2de4505ac52cee916ef3aa153ef19d4 Mon Sep 17 00:00:00 2001
From: Folkert <folkert@folkertdev.nl>
Date: Tue, 31 Aug 2021 22:32:56 +0200
Subject: [PATCH] only conditionally flip a bit

---
 compiler/builtins/bitcode/src/dict.zig | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/compiler/builtins/bitcode/src/dict.zig b/compiler/builtins/bitcode/src/dict.zig
index d2dab07c7b..ee483c7644 100644
--- a/compiler/builtins/bitcode/src/dict.zig
+++ b/compiler/builtins/bitcode/src/dict.zig
@@ -66,11 +66,14 @@ fn capacityOfLevel(input: usize) usize {
 const Alignment = extern struct {
     bits: u8,
 
-    const VALUE_BEFORE_KEY_FLAG = 0b1000_0000;
+    const VALUE_BEFORE_KEY_FLAG: u8 = 0b1000_0000;
 
     fn toU32(self: Alignment) u32 {
-        // xor to wipe the leftmost bit
-        return self.bits ^ Alignment.VALUE_BEFORE_KEY_FLAG;
+        if (self.bits & Alignment.VALUE_BEFORE_KEY_FLAG == 1) {
+            return self.bits ^ Alignment.VALUE_BEFORE_KEY_FLAG;
+        } else {
+            return self.bits;
+        }
     }
 
     fn keyFirst(self: Alignment) bool {