From 44b4d26273e6d18dcd6bbadd66e793c229e89a59 Mon Sep 17 00:00:00 2001
From: Caleb Zulawski <caleb.zulawski@gmail.com>
Date: Sat, 17 Feb 2024 11:18:31 -0500
Subject: [PATCH] Revert "Revert "Merge pull request #385 from
 workingjubilee/make-an-ass-out-of-u-and-me""

This reverts commit 644bdfb2ac810c788300bfd79fcc0e0ec84cda5f.
---
 crates/core_simd/src/masks.rs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/crates/core_simd/src/masks.rs b/crates/core_simd/src/masks.rs
index aad91d7acb72..ad7c68fc7f6f 100644
--- a/crates/core_simd/src/masks.rs
+++ b/crates/core_simd/src/masks.rs
@@ -174,7 +174,10 @@ where
     #[must_use = "method returns a new mask and does not mutate the original value"]
     pub unsafe fn from_int_unchecked(value: Simd<T, N>) -> Self {
         // Safety: the caller must confirm this invariant
-        unsafe { Self(mask_impl::Mask::from_int_unchecked(value)) }
+        unsafe {
+            core::intrinsics::assume(<T as Sealed>::valid(value));
+            Self(mask_impl::Mask::from_int_unchecked(value))
+        }
     }
 
     /// Converts a vector of integers to a mask, where 0 represents `false` and -1