From 47e00450158b4f36d5f9bc8f0b8ab6b061770d28 Mon Sep 17 00:00:00 2001
From: Recep Aslantas <info@recp.me>
Date: Sun, 18 Apr 2021 13:49:36 +0300
Subject: [PATCH] glmm, x86: define hadd function

---
 include/cglm/simd/x86.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/include/cglm/simd/x86.h b/include/cglm/simd/x86.h
index d1d9cfd..bbeccb3 100644
--- a/include/cglm/simd/x86.h
+++ b/include/cglm/simd/x86.h
@@ -48,6 +48,15 @@ glmm_abs(__m128 x) {
   return _mm_andnot_ps(_mm_set1_ps(-0.0f), x);
 }
 
+static inline
+__m128
+glmm_vhadd(__m128 v) {
+  __m128 x0;
+  x0 = _mm_add_ps(v,  glmm_shuff1(v, 0, 1, 2, 3));
+  x0 = _mm_add_ps(x0, glmm_shuff1(x0, 1, 0, 0, 1));
+  return x0;
+}
+
 static inline
 __m128
 glmm_vhadds(__m128 v) {