Rollup merge of rust-lang#101861 - wesleywiser:update_stdarch, r=Amanieu

Update stdarch

This pulls in the following changes:

- [Use simd_bitmask intrinsic in a couple of places](rust-lang/stdarch@9f09287)
- [Remove simd_shuffle<n> usage in favor of simd_shuffle](rust-lang/stdarch@3fd17e4)
- [Remove late specifiers in __cpuid_count](rust-lang/stdarch@f1db941)
  - Helps with rust-lang#101346
- [Use mov and xchg instead of movl(q) and xchgl(q)](rust-lang/stdarch@3049a31)
- [Bump cfg-if dependency to 1.0](rust-lang/stdarch@f305cc8)
- [Fix documentation of __m256bh and __m512bh structs](rust-lang/stdarch@699c093)

r? ``@Amanieu``

Author: matthiaskrgr

std/Cargo.toml

@@ -11,7 +11,7 @@ crate-type = ["dylib", "rlib"]
 
 [dependencies]
 alloc = { path = "../alloc" }
-cfg-if = { version = "0.1.8", features = ['rustc-dep-of-std'] }
+cfg-if = { version = "1.0", features = ['rustc-dep-of-std'] }
 panic_unwind = { path = "../panic_unwind", optional = true }
 panic_abort = { path = "../panic_abort" }
 core = { path = "../core" }

stdarch

@@ -1 +1 @@
-Subproject commit 42df7394d38bc7b945116ea3ad8a7cbcd1db50a9
+Subproject commit 699c093a42283c07e9763b4c19439a900ae2d321