From c3d9b40d45e29a6454515c358998cbad6d7993ef Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ren=C3=A9=20Meusel?= <rene.meusel@rohde-schwarz.com>
Date: Mon, 5 Aug 2024 15:57:49 +0200
Subject: [PATCH] add span-based load/store methods for SIMD_4x32

---
 src/lib/utils/simd/simd_32.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/lib/utils/simd/simd_32.h b/src/lib/utils/simd/simd_32.h
index 51ae3b934f6..e6f28b233b7 100644
--- a/src/lib/utils/simd/simd_32.h
+++ b/src/lib/utils/simd/simd_32.h
@@ -10,6 +10,8 @@
 
 #include <botan/types.h>
 
+#include <span>
+
 #if defined(BOTAN_TARGET_SUPPORTS_SSE2)
    #include <emmintrin.h>
    #define BOTAN_SIMD_USE_SSE2
@@ -186,6 +188,10 @@ class SIMD_4x32 final {
 #endif
       }
 
+      static SIMD_4x32 load_le(std::span<const uint8_t, 16> in) { return SIMD_4x32::load_le(in.data()); }
+
+      static SIMD_4x32 load_be(std::span<const uint8_t, 16> in) { return SIMD_4x32::load_be(in.data()); }
+
       void store_le(uint32_t out[4]) const noexcept { this->store_le(reinterpret_cast<uint8_t*>(out)); }
 
       void store_be(uint32_t out[4]) const noexcept { this->store_be(reinterpret_cast<uint8_t*>(out)); }
@@ -246,6 +252,10 @@ class SIMD_4x32 final {
 #endif
       }
 
+      void store_be(std::span<uint8_t, 16> out) const { this->store_be(out.data()); }
+
+      void store_le(std::span<uint8_t, 16> out) const { this->store_le(out.data()); }
+
       /*
       * This is used for SHA-2/SHACAL2
       */