From 461a4009badb0afff795c5e693c0887d5c69b5c5 Mon Sep 17 00:00:00 2001
From: Wasin Thonkaew <haxpor@gmail.com>
Date: Fri, 19 Apr 2019 02:07:57 +0800
Subject: [PATCH] refactor vec4 : glm_vec4_distance for SSE/SSE2

According to suggestion by recp at
https://github.com/recp/cglm/issues/82#issuecomment-483051704.
---
 include/cglm/vec4.h | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/include/cglm/vec4.h b/include/cglm/vec4.h
index 2b62c1b..d053ed5 100644
--- a/include/cglm/vec4.h
+++ b/include/cglm/vec4.h
@@ -690,12 +690,7 @@ CGLM_INLINE
 float
 glm_vec4_distance(vec4 a, vec4 b) {
 #if defined( __SSE__ ) || defined( __SSE2__ )
-  __m128 x0;
-  x0 = _mm_sub_ps(glmm_load(b), glmm_load(a));
-  x0 = _mm_mul_ps(x0, x0);
-  x0 = _mm_add_ps(x0, glmm_shuff1(x0, 1, 0, 3, 2));
-  return _mm_cvtss_f32(_mm_sqrt_ss(_mm_add_ss(x0,
-                                              glmm_shuff1(x0, 0, 1, 0, 1))));
+  return glmm_norm(_mm_sub_ps(glmm_load(b), glmm_load(a)));
 #elif defined(CGLM_NEON_FP)
   return glmm_norm(vsubq_f32(glmm_load(a), glmm_load(b)));
 #else