Refactor stdsimd

This commit:

* renames `coresimd` to `core_arch` and `stdsimd` to `std_detect`

* `std_detect` does no longer depend on `core_arch` - it is a freestanding
  `no_std` library that only depends on `core` - it is renamed to `std_detect`

* moves the top-level coresimd and stdsimd directories into the appropriate
  crates/... directories - this simplifies creating crate.io releases of these crates

* moves the top-level `coresimd` and `stdsimd` sub-directories into their
  corresponding crates in `crates/{core_arch, std_detect}`.

1 files changed, 105 insertions, 0 deletions

diff --git a/library/stdarch/crates/std_detect/tests/cpu-detection.rs b/library/stdarch/crates/std_detect/tests/cpu-detection.rs
new file mode 100644
index 00000000000..85beeee63ac
--- /dev/null
+++ b/library/stdarch/crates/std_detect/tests/cpu-detection.rs
@@ -0,0 +1,105 @@
+#![feature(stdsimd)]
+#![cfg_attr(stdsimd_strict, deny(warnings))]
+#![cfg_attr(
+    feature = "cargo-clippy",
+    allow(clippy::option_unwrap_used, clippy::use_debug, clippy::print_stdout)
+)]
+
+#[cfg(any(
+    target_arch = "arm",
+    target_arch = "aarch64",
+    target_arch = "x86",
+    target_arch = "x86_64",
+    target_arch = "powerpc",
+    target_arch = "powerpc64"
+))]
+#[macro_use]
+extern crate std_detect;
+
+#[test]
+#[cfg(all(target_arch = "arm", any(target_os = "linux", target_os = "android")))]
+fn arm_linux() {
+    println!("neon: {}", is_arm_feature_detected!("neon"));
+    println!("pmull: {}", is_arm_feature_detected!("pmull"));
+}
+
+#[test]
+#[cfg(all(
+    target_arch = "aarch64",
+    any(target_os = "linux", target_os = "android")
+))]
+fn aarch64_linux() {
+    println!("fp: {}", is_aarch64_feature_detected!("fp"));
+    println!("fp16: {}", is_aarch64_feature_detected!("fp16"));
+    println!("neon: {}", is_aarch64_feature_detected!("neon"));
+    println!("asimd: {}", is_aarch64_feature_detected!("asimd"));
+    println!("sve: {}", is_aarch64_feature_detected!("sve"));
+    println!("crc: {}", is_aarch64_feature_detected!("crc"));
+    println!("crypto: {}", is_aarch64_feature_detected!("crypto"));
+    println!("lse: {}", is_aarch64_feature_detected!("lse"));
+    println!("rdm: {}", is_aarch64_feature_detected!("rdm"));
+    println!("rcpc: {}", is_aarch64_feature_detected!("rcpc"));
+    println!("dotprod: {}", is_aarch64_feature_detected!("dotprod"));
+}
+
+#[test]
+#[cfg(all(target_arch = "powerpc", target_os = "linux"))]
+fn powerpc_linux() {
+    println!("altivec: {}", is_powerpc_feature_detected!("altivec"));
+    println!("vsx: {}", is_powerpc_feature_detected!("vsx"));
+    println!("power8: {}", is_powerpc_feature_detected!("power8"));
+}
+
+#[test]
+#[cfg(all(target_arch = "powerpc64", target_os = "linux"))]
+fn powerpc64_linux() {
+    println!("altivec: {}", is_powerpc64_feature_detected!("altivec"));
+    println!("vsx: {}", is_powerpc64_feature_detected!("vsx"));
+    println!("power8: {}", is_powerpc64_feature_detected!("power8"));
+}
+
+#[test]
+#[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
+fn x86_all() {
+    println!("aes: {:?}", is_x86_feature_detected!("aes"));
+    println!("pcmulqdq: {:?}", is_x86_feature_detected!("pclmulqdq"));
+    println!("rdrand: {:?}", is_x86_feature_detected!("rdrand"));
+    println!("rdseed: {:?}", is_x86_feature_detected!("rdseed"));
+    println!("tsc: {:?}", is_x86_feature_detected!("tsc"));
+    println!("mmx: {:?}", is_x86_feature_detected!("mmx"));
+    println!("sse: {:?}", is_x86_feature_detected!("sse"));
+    println!("sse2: {:?}", is_x86_feature_detected!("sse2"));
+    println!("sse3: {:?}", is_x86_feature_detected!("sse3"));
+    println!("ssse3: {:?}", is_x86_feature_detected!("ssse3"));
+    println!("sse4.1: {:?}", is_x86_feature_detected!("sse4.1"));
+    println!("sse4.2: {:?}", is_x86_feature_detected!("sse4.2"));
+    println!("sse4a: {:?}", is_x86_feature_detected!("sse4a"));
+    println!("sha: {:?}", is_x86_feature_detected!("sha"));
+    println!("avx: {:?}", is_x86_feature_detected!("avx"));
+    println!("avx2: {:?}", is_x86_feature_detected!("avx2"));
+    println!("avx512f {:?}", is_x86_feature_detected!("avx512f"));
+    println!("avx512cd {:?}", is_x86_feature_detected!("avx512cd"));
+    println!("avx512er {:?}", is_x86_feature_detected!("avx512er"));
+    println!("avx512pf {:?}", is_x86_feature_detected!("avx512pf"));
+    println!("avx512bw {:?}", is_x86_feature_detected!("avx512bw"));
+    println!("avx512dq {:?}", is_x86_feature_detected!("avx512dq"));
+    println!("avx512vl {:?}", is_x86_feature_detected!("avx512vl"));
+    println!("avx512_ifma {:?}", is_x86_feature_detected!("avx512ifma"));
+    println!("avx512_vbmi {:?}", is_x86_feature_detected!("avx512vbmi"));
+    println!(
+        "avx512_vpopcntdq {:?}",
+        is_x86_feature_detected!("avx512vpopcntdq")
+    );
+    println!("fma: {:?}", is_x86_feature_detected!("fma"));
+    println!("bmi1: {:?}", is_x86_feature_detected!("bmi1"));
+    println!("bmi2: {:?}", is_x86_feature_detected!("bmi2"));
+    println!("abm: {:?}", is_x86_feature_detected!("abm"));
+    println!("lzcnt: {:?}", is_x86_feature_detected!("lzcnt"));
+    println!("tbm: {:?}", is_x86_feature_detected!("tbm"));
+    println!("popcnt: {:?}", is_x86_feature_detected!("popcnt"));
+    println!("fxsr: {:?}", is_x86_feature_detected!("fxsr"));
+    println!("xsave: {:?}", is_x86_feature_detected!("xsave"));
+    println!("xsaveopt: {:?}", is_x86_feature_detected!("xsaveopt"));
+    println!("xsaves: {:?}", is_x86_feature_detected!("xsaves"));
+    println!("xsavec: {:?}", is_x86_feature_detected!("xsavec"));
+}