From b3798a911690f0db7611a2ff8f29ace6ab0d0e23 Mon Sep 17 00:00:00 2001
From: Leonid Yuriev <leo@yuriev.ru>
Date: Fri, 19 Mar 2021 00:17:14 +0300
Subject: [PATCH] mdbx: `mdbx_node_search()` micro-optimization.

Change-Id: I48064ca284aa89b16e418afdc20d09c5dd6e5cba
---
 src/core.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/core.c b/src/core.c
index a628e366..4b2b1e06 100644
--- a/src/core.c
+++ b/src/core.c
@@ -12454,7 +12454,8 @@ static MDBX_node *__hot mdbx_node_search(MDBX_cursor *mc, const MDBX_val *key,
              IS_LEAF(mp) ? "leaf" : "branch", IS_SUBP(mp) ? "sub-" : "",
              mp->mp_pgno);
 
-  int low = IS_LEAF(mp) ? 0 : 1;
+  STATIC_ASSERT(P_BRANCH == 1);
+  int low = mp->mp_flags & P_BRANCH;
   int high = nkeys - 1;
   *exactp = false;
   if (unlikely(high < low)) {