diff --git a/library/portable-simd/crates/core_simd/src/vendor/arm.rs b/library/portable-simd/crates/core_simd/src/vendor/arm.rs
index f8878d11f094d..3dc54481b6fd4 100644
--- a/library/portable-simd/crates/core_simd/src/vendor/arm.rs
+++ b/library/portable-simd/crates/core_simd/src/vendor/arm.rs
@@ -48,17 +48,6 @@ mod neon {
     from_transmute! { unsafe u64x2 => poly64x2_t }
 }
 
-#[cfg(any(
-    all(target_feature = "v5te", not(target_feature = "mclass")),
-    all(target_feature = "mclass", target_feature = "dsp"),
-))]
-mod dsp {
-    use super::*;
-
-    from_transmute! { unsafe Simd<u16, 2> => uint16x2_t }
-    from_transmute! { unsafe Simd<i16, 2> => int16x2_t }
-}
-
 #[cfg(any(
     all(target_feature = "v6", not(target_feature = "mclass")),
     all(target_feature = "mclass", target_feature = "dsp"),
@@ -68,6 +57,8 @@ mod simd32 {
 
     from_transmute! { unsafe Simd<u8, 4> => uint8x4_t }
     from_transmute! { unsafe Simd<i8, 4> => int8x4_t }
+    from_transmute! { unsafe Simd<u16, 2> => uint16x2_t }
+    from_transmute! { unsafe Simd<i16, 2> => int16x2_t }
 }
 
 #[cfg(all(
diff --git a/library/stdarch b/library/stdarch
index e5e00aab0a8c8..684de0d6fef70 160000
--- a/library/stdarch
+++ b/library/stdarch
@@ -1 +1 @@
-Subproject commit e5e00aab0a8c8fa35fb7865e88fa82366f615c53
+Subproject commit 684de0d6fef708cae08214fef9643dd9ec7296e1
diff --git a/tests/ui/traits/issue-77982.stderr b/tests/ui/traits/issue-77982.stderr
index 0f4b3c3c877c9..1ced03badfc1f 100644
--- a/tests/ui/traits/issue-77982.stderr
+++ b/tests/ui/traits/issue-77982.stderr
@@ -46,6 +46,8 @@ LL |     let ips: Vec<_> = (0..100_000).map(|_| u32::from(0u32.into())).collect(
    = note: multiple `impl`s satisfying `u32: From<_>` found in the `core` crate:
            - impl From<Char> for u32;
            - impl From<Ipv4Addr> for u32;
+           - impl From<Simd<u16, 2>> for u32;
+           - impl From<Simd<u8, 4>> for u32;
            - impl From<bool> for u32;
            - impl From<char> for u32;
            - impl From<u16> for u32;