feat: add cpu_feature_check (#458)

* feat: add cpu_feature_check

* fix: clarify output

Cargo.toml

@@ -81,6 +81,12 @@ reqwest = "0.10.1"
 predicates = "1.0.4"
 tempfile = "3.1.0"
 
+
+[[bin]]
+name = "cpu_feature_check"
+path = "src/cpu_feature_check/main.rs"
+
+
 [[bench]]
 name = "encoders"
 harness = false

src/cpu_feature_check/main.rs

@@ -0,0 +1,66 @@
+//! This program prints what available x86 features are available on this processor
+
+macro_rules! check_feature {
+    ($name: tt) => {
+        println!("  {:10}: {}", $name, std::is_x86_feature_detected!($name))
+    };
+}
+
+fn main() {
+    println!("Available CPU features on this machine:");
+
+    // The list of possibilities was taken from
+    // https://doc.rust-lang.org/reference/attributes/codegen.html#the-target_feature-attribute
+    //
+    // Features that are commented out are experimental
+    check_feature!("aes");
+    check_feature!("pclmulqdq");
+    check_feature!("rdrand");
+    check_feature!("rdseed");
+    check_feature!("tsc");
+    check_feature!("mmx");
+    check_feature!("sse");
+    check_feature!("sse2");
+    check_feature!("sse3");
+    check_feature!("ssse3");
+    check_feature!("sse4.1");
+    check_feature!("sse4.2");
+    check_feature!("sse4a");
+    check_feature!("sha");
+    check_feature!("avx");
+    check_feature!("avx2");
+    check_feature!("avx512f");
+    check_feature!("avx512cd");
+    check_feature!("avx512er");
+    check_feature!("avx512pf");
+    check_feature!("avx512bw");
+    check_feature!("avx512dq");
+    check_feature!("avx512vl");
+    //check_feature!("avx512ifma");
+    // check_feature!("avx512vbmi");
+    // check_feature!("avx512vpopcntdq");
+    // check_feature!("avx512vbmi2");
+    // check_feature!("avx512gfni");
+    // check_feature!("avx512vaes");
+    // check_feature!("avx512vpclmulqdq");
+    // check_feature!("avx512vnni");
+    // check_feature!("avx512bitalg");
+    // check_feature!("avx512bf16");
+    // check_feature!("avx512vp2intersect");
+    //check_feature!("f16c");
+    check_feature!("fma");
+    check_feature!("bmi1");
+    check_feature!("bmi2");
+    check_feature!("abm");
+    check_feature!("lzcnt");
+    check_feature!("tbm");
+    check_feature!("popcnt");
+    check_feature!("fxsr");
+    check_feature!("xsave");
+    check_feature!("xsaveopt");
+    check_feature!("xsaves");
+    check_feature!("xsavec");
+    //check_feature!("cmpxchg16b");
+    check_feature!("adx");
+    //check_feature!("rtm");
+}