From 08d94ddd3025811b23a98e2bf8c2bce11f7a675d Mon Sep 17 00:00:00 2001
From: Jan Blaesi <jan@blaesi.com>
Date: Sat, 1 Aug 2026 22:05:16 +0200
Subject: [PATCH] implement psf_lrint and psf_lrintf using arm neon intrinsics

---
 src/common.h | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/src/common.h b/src/common.h
index c5b7d90b..d599a3e9 100644
--- a/src/common.h
+++ b/src/common.h
@@ -36,6 +36,10 @@
 #   endif
 #endif
 
+#if defined(__aarch64__) || defined(_M_ARM64)
+#	define HAVE_NEON_INTRINSICS
+#endif
+
 #ifdef HAVE_SSE2_INTRINSICS
 #ifdef HAVE_IMMINTRIN_H
 #include <immintrin.h>
@@ -44,6 +48,10 @@
 #endif
 #endif /* HAVE_SSE2_INTRINSICS */
 
+#if defined(HAVE_NEON_INTRINSICS)
+#include <arm_neon.h>
+#endif /* HAVE_NEON_INTRINSICS */
+
 #include <math.h>
 
 #ifdef HAVE_VISIBILITY
@@ -214,6 +222,18 @@ psf_lrint (double x)
 	return _mm_cvtsd_si32 (_mm_load_sd (&x)) ;
 }
 
+#elif defined(HAVE_NEON_INTRINSICS)
+
+static inline int psf_lrintf (float x)
+{
+	return vcvts_s32_f32(x);
+} /* psf_lrintf */
+
+static inline int psf_lrint (double x)
+{
+	return (int) vcvtd_s64_f64(x);
+} /* psf_lrint */
+
 #else
 
 static inline int psf_lrintf (float x)