diff --git a/library/stdarch/crates/core_arch/src/aarch64/neon/generated.rs b/library/stdarch/crates/core_arch/src/aarch64/neon/generated.rs
index 7059b0e4fa20..448c4aacdae0 100644
--- a/library/stdarch/crates/core_arch/src/aarch64/neon/generated.rs
+++ b/library/stdarch/crates/core_arch/src/aarch64/neon/generated.rs
@@ -5093,7 +5093,7 @@ pub fn vcvt_high_f32_f16(a: float16x8_t) -> float32x4_t {
 #[cfg_attr(all(test, target_endian = "little"), assert_instr(fcvtn2))]
 #[stable(feature = "neon_intrinsics", since = "1.59.0")]
 pub fn vcvt_high_f32_f64(a: float32x2_t, b: float64x2_t) -> float32x4_t {
-    unsafe { simd_shuffle!(a, simd_cast(b), [0, 1, 2, 3]) }
+    vcombine_f32(a, vcvt_f32_f64(b))
 }
 #[doc = "Floating-point convert to higher precision long"]
 #[doc = "[Arm's documentation](https://developer.arm.com/architectures/instruction-sets/intrinsics/vcvt_high_f64_f32)"]
@@ -5102,10 +5102,7 @@ pub fn vcvt_high_f32_f64(a: float32x2_t, b: float64x2_t) -> float32x4_t {
 #[cfg_attr(all(test, target_endian = "little"), assert_instr(fcvtl2))]
 #[stable(feature = "neon_intrinsics", since = "1.59.0")]
 pub fn vcvt_high_f64_f32(a: float32x4_t) -> float64x2_t {
-    unsafe {
-        let b: float32x2_t = simd_shuffle!(a, a, [2, 3]);
-        simd_cast(b)
-    }
+    unsafe { simd_cast(vget_high_f32(a)) }
 }
 #[doc = "Fixed-point convert to floating-point"]
 #[doc = "[Arm's documentation](https://developer.arm.com/architectures/instruction-sets/intrinsics/vcvt_n_f64_s64)"]
@@ -7266,7 +7263,7 @@ pub fn vcvtx_f32_f64(a: float64x2_t) -> float32x2_t {
 #[cfg_attr(all(test, target_endian = "little"), assert_instr(fcvtxn2))]
 #[stable(feature = "neon_intrinsics", since = "1.59.0")]
 pub fn vcvtx_high_f32_f64(a: float32x2_t, b: float64x2_t) -> float32x4_t {
-    unsafe { simd_shuffle!(a, vcvtx_f32_f64(b), [0, 1, 2, 3]) }
+    vcombine_f32(a, vcvtx_f32_f64(b))
 }
 #[doc = "Floating-point convert to lower precision narrow, rounding to odd"]
 #[doc = "[Arm's documentation](https://developer.arm.com/architectures/instruction-sets/intrinsics/vcvtxd_f32_f64)"]
diff --git a/library/stdarch/crates/stdarch-gen-arm/spec/neon/aarch64.spec.yml b/library/stdarch/crates/stdarch-gen-arm/spec/neon/aarch64.spec.yml
index 26a542cdc387..ac30a651273a 100644
--- a/library/stdarch/crates/stdarch-gen-arm/spec/neon/aarch64.spec.yml
+++ b/library/stdarch/crates/stdarch-gen-arm/spec/neon/aarch64.spec.yml
@@ -1417,15 +1417,7 @@ intrinsics:
     types:
       - [float32x4_t, float64x2_t]
     compose:
-      - Let:
-          - b
-          - float32x2_t
-          - FnCall:
-              - simd_shuffle!
-              - - a
-                - a
-                - '[2, 3]'
-      - FnCall: [simd_cast, [b]]
+      - FnCall: [simd_cast, [{FnCall: ['vget_high_{neon_type[0]}', [a]]}]]
 
   - name: "vcvt_high_f16_f32"
     doc: "Floating-point convert to lower precision"
@@ -1486,10 +1478,9 @@ intrinsics:
       - [float32x2_t, float64x2_t, float32x4_t]
     compose:
       - FnCall:
-          - simd_shuffle!
+          - vcombine_f32
           - - a
-            - FnCall: [simd_cast, [b]]
-            - '[0, 1, 2, 3]'
+            - FnCall: [vcvt_f32_f64, [b]]
 
   - name: "vcvtx_f32_f64"
     doc: "Floating-point convert to lower precision narrow, rounding to odd"
@@ -1538,10 +1529,9 @@ intrinsics:
       - [float32x2_t, float64x2_t, float32x4_t]
     compose:
       - FnCall:
-          - simd_shuffle!
+          - vcombine_f32
           - - a
             - FnCall: [vcvtx_f32_f64, [b]]
-            - '[0, 1, 2, 3]'
 
   - name: "vcvt{type[2]}"
     doc: "Floating-point convert to fixed-point, rounding toward zero"