Moved const fn outside unsafe block

Author: satiscugcat

crates/core_arch/src/x86/avx512bw.rs

@@ -11303,7 +11303,16 @@ pub fn _mm512_bsrli_epi128<const IMM8: i32>(a: __m512i) -> __m512i {
 #[cfg_attr(test, assert_instr(vpalignr, IMM8 = 1))]
 #[rustc_legacy_const_generics(2)]
 pub fn _mm512_alignr_epi8<const IMM8: i32>(a: __m512i, b: __m512i) -> __m512i {
-    unsafe {
+    const fn mask(shift: u32, i: u32) -> u32 {
+	let shift = shift % 16;
+	let mod_i = i%16;
+	if mod_i < (16 - shift) {
+	    i + shift
+	} else {
+	    i + 48 + shift
+	} 
+    }
+
         // If palignr is shifting the pair of vectors more than the size of two
         // lanes, emit zero.
         if IMM8 >= 32 {
@@ -11316,18 +11325,11 @@ pub fn _mm512_alignr_epi8<const IMM8: i32>(a: __m512i, b: __m512i) -> __m512i {
         } else {
             (a, b)
         };
+    unsafe {
         if IMM8 == 16 {
             return transmute(a);
         }
-	const fn mask(shift: u32, i: u32) -> u32 {
-	    let shift = shift % 16;
-	    let mod_i = i%16;
-	    if mod_i < (16 - shift) {
-		i + shift
-	    } else {
-		i + 48 + shift
-	    } 
-	}
+	
 
         let r: i8x64 = simd_shuffle!(
             b.as_i8x64(),
@@ -11491,7 +11493,7 @@ pub fn _mm_mask_alignr_epi8<const IMM8: i32>(
     a: __m128i,
     b: __m128i,
 ) -> __m128i {
-    unsafe {
+    unsafe {`
         static_assert_uimm_bits!(IMM8, 8);
         let r = _mm_alignr_epi8::<IMM8>(a, b);
         transmute(simd_select_bitmask(k, r.as_i8x16(), src.as_i8x16()))