From 83f195aa17878ca7d4c8c03b2b871df7bfbe5fb0 Mon Sep 17 00:00:00 2001
From: weidai <weidai@57ff6487-cd31-0410-9ec3-f628ee90f5f0>
Date: Wed, 7 Jul 2010 22:46:18 +0000
Subject: add AESNI and CLMUL detection

git-svn-id: svn://svn.code.sf.net/p/cryptopp/code/trunk/c5@503 57ff6487-cd31-0410-9ec3-f628ee90f5f0
---
 cpu.cpp      |  4 +++-
 cpu.h        | 16 ++++++++++++++++
 validat1.cpp |  2 +-
 3 files changed, 20 insertions(+), 2 deletions(-)

diff --git a/cpu.cpp b/cpu.cpp
index 3e46804..11c27b8 100755
--- a/cpu.cpp
+++ b/cpu.cpp
@@ -145,7 +145,7 @@ static bool TrySSE2()
 }
 
 bool g_x86DetectionDone = false;
-bool g_hasISSE = false, g_hasSSE2 = false, g_hasSSSE3 = false, g_hasMMX = false, g_isP4 = false;
+bool g_hasISSE = false, g_hasSSE2 = false, g_hasSSSE3 = false, g_hasMMX = false, g_hasAESNI = false, g_hasCLMUL = false, g_isP4 = false;
 word32 g_cacheLineSize = CRYPTOPP_L1_CACHE_LINE_SIZE;
 
 void DetectX86Features()
@@ -160,6 +160,8 @@ void DetectX86Features()
 	if ((cpuid1[3] & (1 << 26)) != 0)
 		g_hasSSE2 = TrySSE2();
 	g_hasSSSE3 = g_hasSSE2 && (cpuid1[2] & (1<<9));
+	g_hasAESNI = (cpuid1[2] & (1<<25)) != 0;
+	g_hasCLMUL = (cpuid1[2] & (1<<1)) != 0;
 
 	if ((cpuid1[3] & (1 << 25)) != 0)
 		g_hasISSE = true;
diff --git a/cpu.h b/cpu.h
index 7f01dad..79e5ea8 100755
--- a/cpu.h
+++ b/cpu.h
@@ -28,6 +28,8 @@ extern CRYPTOPP_DLL bool g_hasSSE2;
 extern CRYPTOPP_DLL bool g_hasISSE;
 extern CRYPTOPP_DLL bool g_hasMMX;
 extern CRYPTOPP_DLL bool g_hasSSSE3;
+extern CRYPTOPP_DLL bool g_hasAESNI;
+extern CRYPTOPP_DLL bool g_hasCLMUL;
 extern CRYPTOPP_DLL bool g_isP4;
 extern CRYPTOPP_DLL word32 g_cacheLineSize;
 CRYPTOPP_DLL void CRYPTOPP_API DetectX86Features();
@@ -70,6 +72,20 @@ inline bool HasSSSE3()
 	return g_hasSSSE3;
 }
 
+inline bool HasAESNI()
+{
+	if (!g_x86DetectionDone)
+		DetectX86Features();
+	return g_hasAESNI;
+}
+
+inline bool HasCLMUL()
+{
+	if (!g_x86DetectionDone)
+		DetectX86Features();
+	return g_hasCLMUL;
+}
+
 inline bool IsP4()
 {
 	if (!g_x86DetectionDone)
diff --git a/validat1.cpp b/validat1.cpp
index 680314c..dafeb52 100644
--- a/validat1.cpp
+++ b/validat1.cpp
@@ -251,7 +251,7 @@ bool TestSettings()
 	else
 		cout << "passed:  ";
 
-	cout << "hasMMX == " << hasMMX << ", hasISSE == " << hasISSE << ", hasSSE2 == " << hasSSE2 << ", hasSSSE3 == " << hasSSSE3 << ", isP4 == " << isP4 << ", cacheLineSize == " << cacheLineSize;
+	cout << "hasMMX == " << hasMMX << ", hasISSE == " << hasISSE << ", hasSSE2 == " << hasSSE2 << ", hasSSSE3 == " << hasSSSE3 << ", hasAESNI == " << HasAESNI() << ", hasCLMUL == " << HasCLMUL() << ", isP4 == " << isP4 << ", cacheLineSize == " << cacheLineSize;
 
 	if (!pass)
 	{
-- 
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