From 5d22ad3fc8abe4617684213833550207ddca2c6b Mon Sep 17 00:00:00 2001
From: Nikolay Volf <nikvolf@gmail.com>
Date: Thu, 25 Feb 2016 18:10:33 +0300
Subject: [PATCH] counter jump better

---
 util/src/uint.rs | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/util/src/uint.rs b/util/src/uint.rs
index 6793376a0..f4d5b5b76 100644
--- a/util/src/uint.rs
+++ b/util/src/uint.rs
@@ -222,8 +222,7 @@ macro_rules! uint_overflowing_mul {
 				adc $$0, %rdx
 				or %rdx, %rcx
 
-				cmpq $$0, %rcx
-				jne 2f
+				jrcxz 2f
 
 				mov $8, %rax
 				cmpq $$0, %rax
@@ -234,6 +233,8 @@ macro_rules! uint_overflowing_mul {
 				sete %dl
 				or %dl, %cl
 
+				jrcxz 2f
+
 				mov $3, %rax
 				cmpq $$0, %rax
 				sete %dl