From 081afde0fdf6202073dc9dfc46b501a0f06388a6 Mon Sep 17 00:00:00 2001
From: Jeffrey Walton <noloader@gmail.com>
Date: Sun, 3 Dec 2017 04:10:55 -0500
Subject: Add SIMON-64 SSE intrinsics Performance went from about 29 cpb (C++)
 to about 11.1 cpb (SSE)

---
 simon.cpp | 45 +++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 43 insertions(+), 2 deletions(-)

(limited to 'simon.cpp')

diff --git a/simon.cpp b/simon.cpp
index 565a5205..a966a4ca 100644
--- a/simon.cpp
+++ b/simon.cpp
@@ -7,9 +7,10 @@
 #include "misc.h"
 #include "cpu.h"
 
-// Uncomment for benchmarking C++ against SSE2 or NEON.
-// Do so in both speck.cpp and speck-simd.cpp.
+// Uncomment for benchmarking C++ against SSE or NEON.
+// Do so in both simon.cpp and simon-simd.cpp.
 // #undef CRYPTOPP_SSSE3_AVAILABLE
+// #undef CRYPTOPP_SSE41_AVAILABLE
 // #undef CRYPTOPP_ARM_NEON_AVAILABLE
 
 // Disable NEON/ASIMD for Cortex-A53 and A57. The shifts are too slow and C/C++ is about
@@ -206,6 +207,14 @@ extern size_t SIMON128_Dec_AdvancedProcessBlocks_NEON(const word64* subKeys, siz
     const byte *inBlocks, const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags);
 #endif
 
+#if defined(CRYPTOPP_SSE41_AVAILABLE)
+extern size_t SIMON64_Enc_AdvancedProcessBlocks_SSE41(const word32* subKeys, size_t rounds,
+    const byte *inBlocks, const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags);
+
+extern size_t SIMON64_Dec_AdvancedProcessBlocks_SSE41(const word32* subKeys, size_t rounds,
+    const byte *inBlocks, const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags);
+#endif
+
 #if defined(CRYPTOPP_SSSE3_AVAILABLE)
 extern size_t SIMON128_Enc_AdvancedProcessBlocks_SSSE3(const word64* subKeys, size_t rounds,
     const byte *inBlocks, const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags);
@@ -376,6 +385,38 @@ void SIMON128::Dec::ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock
 }
 
 #if defined(CRYPTOPP_SIMON_ADVANCED_PROCESS_BLOCKS)
+size_t SIMON64::Enc::AdvancedProcessBlocks(const byte *inBlocks, const byte *xorBlocks,
+        byte *outBlocks, size_t length, word32 flags) const
+{
+#if defined(CRYPTOPP_SSE41_AVAILABLE)
+    if (HasSSE41())
+        return SIMON64_Enc_AdvancedProcessBlocks_SSE41(m_rkeys, (size_t)m_rounds,
+            inBlocks, xorBlocks, outBlocks, length, flags);
+#endif
+#if defined(CRYPTOPP_ARM_NEON_AVAILABLE)
+    if (HasNEON())
+        return SIMON64_Enc_AdvancedProcessBlocks_NEON(m_rkeys, (size_t)m_rounds,
+            inBlocks, xorBlocks, outBlocks, length, flags);
+#endif
+    return BlockTransformation::AdvancedProcessBlocks(inBlocks, xorBlocks, outBlocks, length, flags);
+}
+
+size_t SIMON64::Dec::AdvancedProcessBlocks(const byte *inBlocks, const byte *xorBlocks,
+        byte *outBlocks, size_t length, word32 flags) const
+{
+#if defined(CRYPTOPP_SSE41_AVAILABLE)
+    if (HasSSE41())
+        return SIMON64_Dec_AdvancedProcessBlocks_SSE41(m_rkeys, (size_t)m_rounds,
+            inBlocks, xorBlocks, outBlocks, length, flags);
+#endif
+#if defined(CRYPTOPP_ARM_NEON_AVAILABLE)
+    if (HasNEON())
+        return SIMON64_Dec_AdvancedProcessBlocks_NEON(m_rkeys, (size_t)m_rounds,
+            inBlocks, xorBlocks, outBlocks, length, flags);
+#endif
+    return BlockTransformation::AdvancedProcessBlocks(inBlocks, xorBlocks, outBlocks, length, flags);
+}
+
 size_t SIMON128::Enc::AdvancedProcessBlocks(const byte *inBlocks, const byte *xorBlocks,
         byte *outBlocks, size_t length, word32 flags) const
 {
-- 
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