refactor: move arch specific code to rpo folder, don't run SVE on CI

.github/workflows/ci.yml

@@ -39,7 +39,7 @@ jobs:
       matrix:
         toolchain: [stable, nightly]
         os: [ubuntu]
-        features: [--all-features, --no-default-features]
+        features: ["--features default,std,serde", --no-default-features]
     steps:
       - uses: actions/checkout@main
       - name: Install rust
@@ -59,7 +59,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        features: [--all-features, --no-default-features]
+        features: ["--features default,std,serde", --no-default-features]
     steps:
       - uses: actions/checkout@main
       - name: Install minimal nightly with clippy

.pre-commit-config.yaml

@@ -35,8 +35,8 @@ repos:
       name: Cargo check --all-targets --no-default-features
       args: ["+stable", "check", "--all-targets", "--no-default-features"]
     - id: cargo
-      name: Cargo check --all-targets --all-features
-      args: ["+stable", "check", "--all-targets", "--all-features"]
+      name: Cargo check --all-targets --features default,std,serde
+      args: ["+stable", "check", "--all-targets", "--features", "default,std,serde"]
     # Unlike fmt, clippy will not be automatically applied
     - id: cargo
       name: Cargo clippy

arch/arm64-sve/CMakeLists.txt

@@ -1,10 +0,0 @@
-cmake_minimum_required(VERSION 3.0)
-project(rpo_sve C)
-
-set(CMAKE_C_STANDARD 23)
-set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -march=armv8-a+sve -Wall -Wextra -pedantic -g -O3")
-
-add_library(rpo_sve library.c rpo_hash.h)
-
-add_executable(rpo_test test.c)
-target_link_libraries(rpo_test rpo_sve)

arch/arm64-sve/test.c

@@ -1,27 +0,0 @@
-#include <stdio.h>
-#include "library.h"
-
-void print_array(size_t len, uint64_t arr[len]);
-
-int main() {
-    uint64_t C[STATE_WIDTH] = {1, 1, 1, 1 ,1, 1, 1, 1 ,1, 1, 1, 1};
-    uint64_t T[STATE_WIDTH] = {1, 2, 3, 4, 1, 2, 3, 4,1, 2, 3, 4};
-
-    add_constants_and_apply_sbox(T, C);
-    add_constants_and_apply_inv_sbox(T, C);
-
-    print_array(STATE_WIDTH, T);
-
-    return 0;
-}
-
-void print_array(size_t len, uint64_t arr[len])
-{
-    printf("[");
-    for (size_t i = 0; i < len; i++)
-    {
-        printf("%lu ", arr[i]);
-    }
-
-    printf("]\n");
-}

build.rs

@@ -5,12 +5,12 @@ fn main() {
 
 #[cfg(feature = "arch-arm64-sve")]
 fn compile_arch_arm64_sve() {
-    println!("cargo:rerun-if-changed=arch/arm64-sve/library.c");
-    println!("cargo:rerun-if-changed=arch/arm64-sve/library.h");
-    println!("cargo:rerun-if-changed=arch/arm64-sve/rpo_hash.h");
+    println!("cargo:rerun-if-changed=arch/arm64-sve/rpo/library.c");
+    println!("cargo:rerun-if-changed=arch/arm64-sve/rpo/library.h");
+    println!("cargo:rerun-if-changed=arch/arm64-sve/rpo/rpo_hash.h");
 
     cc::Build::new()
-        .file("arch/arm64-sve/library.c")
+        .file("arch/arm64-sve/rpo/library.c")
         .flag("-march=armv8-a+sve")
         .flag("-O3")
         .compile("rpo_sve");