diff --git a/src/util/arch/arm/simd_utils.h b/src/util/arch/arm/simd_utils.h
index 68c29c67..8d8c4456 100644
--- a/src/util/arch/arm/simd_utils.h
+++ b/src/util/arch/arm/simd_utils.h
@@ -380,19 +380,15 @@ static really_inline m128 eq64_m128(m128 a, m128 b) {
 }
 
 static really_inline u32 movemask128(m128 a) {
-    static const uint8x16_t powers = {1, 2, 4, 8, 16, 32, 64, 128,
-                                      1, 2, 4, 8, 16, 32, 64, 128};
-
-    // Compute the mask from the input
-    uint8x16_t mask = (uint8x16_t)vpaddlq_u32(
-        vpaddlq_u16(vpaddlq_u8(vandq_u8((uint8x16_t)a, powers))));
-    uint8x16_t mask1 = vextq_u8(mask, (uint8x16_t)zeroes128(), 7);
-    mask = vorrq_u8(mask, mask1);
-
-    // Get the resulting bytes
-    uint16_t output;
-    vst1q_lane_u16((uint16_t *)&output, (uint16x8_t)mask, 0);
-    return output;
+    ruint8x16_t input = vreinterpretq_u8_s32(a);
+    uint16x8_t high_bits = vreinterpretq_u16_u8(vshrq_n_u8(input, 7));
+    uint32x4_t paired16 =
+        vreinterpretq_u32_u16(vsraq_n_u16(high_bits, high_bits, 7));
+    uint64x2_t paired32 =
+        vreinterpretq_u64_u32(vsraq_n_u32(paired16, paired16, 14));
+    uint8x16_t paired64 =
+        vreinterpretq_u8_u64(vsraq_n_u64(paired32, paired32, 28));
+    return vgetq_lane_u8(paired64, 0) | ((int) vgetq_lane_u8(paired64, 8) << 8);
 }
 
 static really_inline m128 set1_16x8(u8 c) {
diff --git a/src/util/supervector/supervector.hpp b/src/util/supervector/supervector.hpp
index 51310db2..5d066c1a 100644
--- a/src/util/supervector/supervector.hpp
+++ b/src/util/supervector/supervector.hpp
@@ -104,8 +104,7 @@ struct BaseVector
   static constexpr bool      is_valid = false;
   static constexpr u16           size = 8;
   using                          type = void;
-  using comparemask_type = void;
-  using cmpmask_type = void;
+  using              comparemask_type = void;
   static constexpr bool  has_previous = false;
   using                 previous_type = void;
   static constexpr u16  previous_size = 4;
@@ -117,7 +116,7 @@ struct BaseVector<128>
   static constexpr bool      is_valid = true;
   static constexpr u16           size = 128;
   using                          type = void;
-  using comparemask_type = u64a;
+  using              comparemask_type = u64a;
   static constexpr bool  has_previous = true;
   using                 previous_type = m512;
   static constexpr u16  previous_size = 64;
@@ -129,7 +128,7 @@ struct BaseVector<64>
   static constexpr bool      is_valid = true;
   static constexpr u16           size = 64;
   using                          type = m512;
-  using comparemask_type = u64a;
+  using              comparemask_type = u64a;
   static constexpr bool  has_previous = true;
   using                 previous_type = m256;
   static constexpr u16  previous_size = 32;
@@ -142,7 +141,7 @@ struct BaseVector<32>
   static constexpr bool      is_valid = true;
   static constexpr u16           size = 32;
   using                          type = m256;
-  using comparemask_type = u64a;
+  using              comparemask_type = u64a;
   static constexpr bool  has_previous = true;
   using                 previous_type = m128;
   static constexpr u16  previous_size = 16;
@@ -155,7 +154,7 @@ struct BaseVector<16>
   static constexpr bool      is_valid = true;
   static constexpr u16           size = 16;
   using                          type = m128;
-  using comparemask_type = u64a;
+  using              comparemask_type = u64a;
   static constexpr bool  has_previous = false;
   using                 previous_type = u64a;
   static constexpr u16  previous_size = 8;