Avx512f (#921)

library/stdarch/crates/core_arch/src/simd.rs

@@ -554,6 +554,202 @@ simd_ty!(
 
 // 512-bit wide types:
 
+simd_ty!(
+    i8x64[i8]: i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8,
+    i8 | x0,
+    x1,
+    x2,
+    x3,
+    x4,
+    x5,
+    x6,
+    x7,
+    x8,
+    x9,
+    x10,
+    x11,
+    x12,
+    x13,
+    x14,
+    x15,
+    x16,
+    x17,
+    x18,
+    x19,
+    x20,
+    x21,
+    x22,
+    x23,
+    x24,
+    x25,
+    x26,
+    x27,
+    x28,
+    x29,
+    x30,
+    x31,
+    x32,
+    x33,
+    x34,
+    x35,
+    x36,
+    x37,
+    x38,
+    x39,
+    x40,
+    x41,
+    x42,
+    x43,
+    x44,
+    x45,
+    x46,
+    x47,
+    x48,
+    x49,
+    x50,
+    x51,
+    x52,
+    x53,
+    x54,
+    x55,
+    x56,
+    x57,
+    x58,
+    x59,
+    x60,
+    x61,
+    x62,
+    x63
+);
+
+simd_ty!(
+    i16x32[i16]: i16,
+    i16,
+    i16,
+    i16,
+    i16,
+    i16,
+    i16,
+    i16,
+    i16,
+    i16,
+    i16,
+    i16,
+    i16,
+    i16,
+    i16,
+    i16,
+    i16,
+    i16,
+    i16,
+    i16,
+    i16,
+    i16,
+    i16,
+    i16,
+    i16,
+    i16,
+    i16,
+    i16,
+    i16,
+    i16,
+    i16,
+    i16 | x0,
+    x1,
+    x2,
+    x3,
+    x4,
+    x5,
+    x6,
+    x7,
+    x8,
+    x9,
+    x10,
+    x11,
+    x12,
+    x13,
+    x14,
+    x15,
+    x16,
+    x17,
+    x18,
+    x19,
+    x20,
+    x21,
+    x22,
+    x23,
+    x24,
+    x25,
+    x26,
+    x27,
+    x28,
+    x29,
+    x30,
+    x31
+);
+
 simd_ty!(
     i32x16[i32]: i32,
     i32,

library/stdarch/crates/core_arch/src/x86/mod.rs

@@ -474,6 +474,16 @@ impl m256Ext for __m256 {
 pub(crate) trait m512iExt: Sized {
     fn as_m512i(self) -> __m512i;
 
+    #[inline]
+    fn as_i8x64(self) -> crate::core_arch::simd::i8x64 {
+        unsafe { transmute(self.as_m512i()) }
+    }
+
+    #[inline]
+    fn as_i16x32(self) -> crate::core_arch::simd::i16x32 {
+        unsafe { transmute(self.as_m512i()) }
+    }
+
     #[inline]
     fn as_u32x16(self) -> crate::core_arch::simd::u32x16 {
         unsafe { transmute(self.as_m512i()) }