From bb9cc43a6dd7b0373c7387409ebce7ba56cd7bd4 Mon Sep 17 00:00:00 2001
From: Christophe Riccio <mail@g-truc.net>
Date: Sun, 15 Sep 2013 03:09:10 +0200
Subject: [PATCH] Updated CMake instruction set selection

---
 CMakeLists.txt     | 56 ++++++++++++++++++++++++++++++++++------------
 glm/core/setup.hpp |  2 +-
 2 files changed, 43 insertions(+), 15 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6490caf1..469a7358 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -49,25 +49,53 @@ if(("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC") OR (("${CMAKE_CXX_COMPILER_ID}"
 	endif()
 endif()
 
-#set(GLM_SIMD_INSTRUCTION_SET "" CACHE STRING "Instruction set. Possible values are SSE1, SSE2")
+option(GLM_TEST_ENABLE_SSE2 "Enable SSE2 optimizations" OFF)
+option(GLM_TEST_ENABLE_SSE3 "Enable SSE3 optimizations" OFF)
+option(GLM_TEST_ENABLE_AVX "Enable AVX optimizations" OFF)
+option(GLM_TEST_ENABLE_AVX2 "Enable AVX2 optimizations" OFF)
+option(GLM_TEST_FORCE_PURE "Force 'pure' instructions" OFF)
 
-option(GLM_TEST_ENABLE_SIMD "Enable SIMD optimizations" OFF)
-if(GLM_TEST_ENABLE_SIMD)
-	if(CMAKE_COMPILER_IS_GNUCXX)
-		add_definitions(-msse2)
-	elseif(GLM_USE_INTEL)
-		add_definitions(/QxAVX)
-	elseif(MSVC10)
-		add_definitions(/arch:AVX)	
-	elseif(MSVC)
-		add_definitions(/arch:SSE2)	
-	endif()
-elseif(NOT GLM_TEST_ENABLE_SIMD)
-	
+if(GLM_TEST_FORCE_PURE)
 	add_definitions(-DGLM_FORCE_PURE)
 
 	if(CMAKE_COMPILER_IS_GNUCXX)
 		add_definitions(-mfpmath=387)
+	elseif(MSVC)
+		add_definitions(/arch:IA32)
+	endif()
+elseif(GLM_TEST_ENABLE_AVX2)
+	if(CMAKE_COMPILER_IS_GNUCXX)
+		add_definitions(-mavx2)
+	elseif(GLM_USE_INTEL)
+		add_definitions(/QxAVX2)
+	elseif(MSVC)
+		add_definitions(/arch:AVX2)	
+	endif()
+elseif(GLM_TEST_ENABLE_AVX)
+	if(CMAKE_COMPILER_IS_GNUCXX)
+		add_definitions(-mavx)
+	elseif(GLM_USE_INTEL)
+		add_definitions(/QxAVX)
+	elseif(MSVC)
+		add_definitions(/arch:AVX)	
+	endif()
+elseif(GLM_TEST_ENABLE_SSE3)
+	if(CMAKE_COMPILER_IS_GNUCXX)
+		add_definitions(-msse3)
+	elseif(GLM_USE_INTEL)
+		add_definitions(/QxSSE3)
+	elseif(MSVC)
+		add_definitions(/arch:SSE3)	
+	endif()
+elseif(GLM_TEST_ENABLE_SSE2)
+	if(CMAKE_COMPILER_IS_GNUCXX)
+		add_definitions(-msse2)
+	elseif(GLM_USE_INTEL)
+		add_definitions(/QxSSE2)
+	elseif(MSVC)
+		if(NOT CMAKE_CL_64)
+			add_definitions(/arch:SSE2)	
+		endif()
 	endif()
 endif()
 
diff --git a/glm/core/setup.hpp b/glm/core/setup.hpp
index a0c0536f..511831ad 100644
--- a/glm/core/setup.hpp
+++ b/glm/core/setup.hpp
@@ -685,7 +685,7 @@
 
 #if(defined(GLM_MESSAGES) && !defined(GLM_MESSAGE_SWIZZLE_DISPLAYED))
 #	define GLM_MESSAGE_SWIZZLE_DISPLAYED
-#	if defined(GLM_SWIZZL)E
+#	if defined(GLM_SWIZZL)
 #		pragma message("GLM: Swizzling operators enabled")
 #	else
 #		pragma message("GLM: Swizzling operators disabled")