From: Sergey Kandaurov <pluknet@nginx.com>
Date: Fri, 13 Nov 2020 13:24:45 +0000 (+0000)
Subject: QUIC: microoptimization in varint parsing.
X-Git-Tag: release-1.25.0~4^2~473
X-Git-Url: http://git.kaiwu.me/postgresql/log/contrib/postgres_fdw/static/gitweb.js?a=commitdiff_plain;h=c092a7de0f7473e1d117792eb5b89e68894abdea;p=nginx.git

QUIC: microoptimization in varint parsing.

Removed a useless mask from the value being shifted, since it is 1-byte wide.
---

diff --git a/src/event/ngx_event_quic_transport.c b/src/event/ngx_event_quic_transport.c
index 756b679e5..7f2c6e4eb 100644
--- a/src/event/ngx_event_quic_transport.c
+++ b/src/event/ngx_event_quic_transport.c
@@ -160,7 +160,7 @@ ngx_quic_parse_int(u_char *pos, u_char *end, uint64_t *out)
     }
 
     p = pos;
-    len = 1 << ((*p & 0xc0) >> 6);
+    len = 1 << (*p >> 6);
 
     value = *p++ & 0x3f;