rill-core 0.5.0-beta.4

Core foundation for the Rill ecosystem — traits, math, buffers, queues, time, macros
Documentation 
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//! # SIMD implementations for vector operations
//!
//! This module contains platform-dependent SIMD implementations of vector operations.
//!
//! ## CPU feature detection
//! The system automatically determines available SIMD instructions at runtime
//! and selects the optimal implementation.
//!
//! ## Supported architectures
//! - x86/x86_64: SSE2, SSE4.1, AVX, AVX2, AVX512
//! - ARM: NEON (AArch64)
//! - WebAssembly: SIMD128
//!
//! ## Usage
//! Users typically don't interact with this module directly,
//! but use the high-level abstractions from `vector::traits`.

#![allow(unused_imports)]
#![allow(dead_code)]

// Cross-platform SIMD implementation via the wide crate (requires simd feature)
#[cfg(feature = "simd")]
pub mod wide;

#[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
pub mod x86;

#[cfg(any(target_arch = "arm", target_arch = "aarch64"))]
pub mod arm;

#[cfg(target_arch = "wasm32")]
pub mod wasm;

/// SIMD capability detector for the CPU
pub struct SimdDetector {
    has_sse2: bool,
    has_sse4_1: bool,
    has_avx: bool,
    has_avx2: bool,
    has_avx512: bool,
    has_neon: bool,
    has_wasm_simd128: bool,
}

impl Default for SimdDetector {
    fn default() -> Self {
        Self::new()
    }
}

impl SimdDetector {
    /// Creates a detector and determines the current CPU's capabilities
    pub fn new() -> Self {
        // Temporary stub: always returns false for SIMD extensions
        // In a real implementation, detection would be done via raw_cpuid or similar libraries
        Self {
            has_sse2: false,
            has_sse4_1: false,
            has_avx: false,
            has_avx2: false,
            has_avx512: false,
            has_neon: false,
            has_wasm_simd128: false,
        }
    }

    /// Returns the maximum recommended SIMD width for the current platform
    pub fn recommended_simd_width<T: crate::Transcendental>() -> usize {
        // Temporary stub: always returns scalar width
        // In a real implementation, selection logic based on detection would go here
        1
    }
}

// Re-exports
#[cfg(feature = "simd")]
pub use wide::*;

// Platform-specific re-exports (not yet implemented)
// #[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
// pub use x86::*;

// #[cfg(any(target_arch = "arm", target_arch = "aarch64"))]
// pub use arm::*;

// #[cfg(target_arch = "wasm32")]
// pub use wasm::*;