1 files changed, 8 insertions, 0 deletions
diff --git a/lib/std/packed_int_array.zig b/lib/std/packed_int_array.zig
index 02c721e7cf..d76df4d04e 100644
--- a/lib/std/packed_int_array.zig
+++ b/lib/std/packed_int_array.zig
@@ -214,6 +214,10 @@ pub fn PackedIntArrayEndian(comptime Int: type, comptime endian: Endian, comptim
         /// or, more likely, an array literal.
         pub fn init(ints: [int_count]Int) Self {
             var self: Self = undefined;
+            if (@inComptime()) {
+                // TODO: #19634
+                @memset(&self.bytes, 0xAA);
+            }
             for (ints, 0..) |int, i| self.set(i, int);
             return self;
         }
@@ -221,6 +225,10 @@ pub fn PackedIntArrayEndian(comptime Int: type, comptime endian: Endian, comptim
         /// Initialize all entries of a packed array to the same value.
         pub fn initAllTo(int: Int) Self {
             var self: Self = undefined;
+            if (@inComptime()) {
+                // TODO: #19634
+                @memset(&self.bytes, 0xAA);
+            }
             self.setAll(int);
             return self;
         }