From 1bbc2935a2a1d7dd6999b84089e47945c36521a1 Mon Sep 17 00:00:00 2001
From: Christophe Riccio <christophe.riccio@unity3d.com>
Date: Mon, 30 May 2016 14:39:43 +0200
Subject: [PATCH] Added AVX bitCount optimization

---
 glm/detail/func_integer_simd.inl | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/glm/detail/func_integer_simd.inl b/glm/detail/func_integer_simd.inl
index bf393056..fe3a37df 100644
--- a/glm/detail/func_integer_simd.inl
+++ b/glm/detail/func_integer_simd.inl
@@ -1,9 +1,30 @@
 /// @ref core
 /// @file glm/detail/func_integer_simd.inl
 
+#include "../simd/integer.h"
+
+#if GLM_ARCH & GLM_ARCH_SSE2_BIT
+
 namespace glm{
 namespace detail
 {
 
 }//namespace detail
+
+#	if GLM_ARCH & GLM_ARCH_AVX_BIT
+	template <>
+	GLM_FUNC_QUALIFIER int bitCount(uint32 x)
+	{
+		return _mm_popcnt_u32(x);
+	}
+
+	template <>
+	GLM_FUNC_QUALIFIER int bitCount(uint64 x)
+	{
+		return _mm_popcnt_u64(x);
+	}
+#	endif
+
 }//namespace glm
+
+#endif//GLM_ARCH & GLM_ARCH_SSE2_BIT