From b2ff4eb2c933ccf1cf8f6afac498ab085461ab74 Mon Sep 17 00:00:00 2001
From: Yuxuan Shui <yshuiv7@gmail.com>
Date: Thu, 8 Aug 2019 00:47:12 +0100
Subject: [PATCH] compiler.h: add popcount

---
 src/compiler.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/compiler.h b/src/compiler.h
index 8d8722e5..de5c17c6 100644
--- a/src/compiler.h
+++ b/src/compiler.h
@@ -106,3 +106,7 @@
 
 typedef unsigned long ulong;
 typedef unsigned int uint;
+
+static inline int popcount(uint x) {
+	return __builtin_popcount(x);
+}