AVX2 detection debugging

Author: tarcieri

poly1305/src/autodetect.rs

@@ -18,20 +18,22 @@ union Inner {
 impl State {
     /// Initialize Poly1305 [`State`] with the given key
     #[inline]
-    pub(crate) fn new(key: &Key) -> State {
-        let (token, avx2_present) = avx2_cpuid::init_get();
+    pub(crate) fn new(_key: &Key) -> State {
+        let (_, avx2_present) = avx2_cpuid::init_get();
 
-        let inner = if avx2_present {
-            Inner {
-                avx2: backend::avx2::State::new(key),
-            }
+        if avx2_present {
+            //Inner {
+            //    avx2: backend::avx2::State::new(key),
+            //}
+            panic!("AVX2 detected!");
         } else {
-            Inner {
-                soft: backend::soft::State::new(key),
-            }
+            //Inner {
+            //    soft: backend::soft::State::new(key),
+            //}
+            panic!("AVX2 NOT detected!")
         };
 
-        Self { inner, token }
+        //Self { inner, token }
     }
 
     /// Reset internal state

poly1305/src/backend/avx2.rs

@@ -1,5 +1,7 @@
 //! AVX2 implementation of the Poly1305 state machine.
 
+#![allow(dead_code)]
+
 // The State struct and its logic was originally derived from Goll and Gueron's AVX2 C
 // code:
 //     [Vectorization of Poly1305 message authentication code](https://ieeexplore.ieee.org/document/7113463)

poly1305/src/backend/avx2/helpers.rs

@@ -1,5 +1,7 @@
 //! AVX2 helpers for implementing Poly1305 using 26-bit limbs.
 
+#![allow(dead_code)]
+
 use core::fmt;
 use core::ops::{Add, Mul};
 

poly1305/src/backend/soft.rs

@@ -12,6 +12,8 @@
 // ...and was originally a port of Andrew Moons poly1305-donna
 // https://github.com/floodyberry/poly1305-donna
 
+#![allow(dead_code)]
+
 use core::convert::TryInto;
 
 #[cfg(feature = "zeroize")]