From: David G. Andersen <dave.andersen@gmail.com>
Date: Thu, 26 Jan 2012 00:09:12 +0000 (-0800)
Subject: math/big:  return type of bitLen is an int;  use MOVL on amd64.
X-Git-Tag: weekly.2012-01-27~32
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=1e09031f7f9293ba032c88abb55b373d341f01bf;p=gostls13.git

math/big:  return type of bitLen is an int;  use MOVL on amd64.

R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/5577050
---

diff --git a/src/pkg/math/big/arith_amd64.s b/src/pkg/math/big/arith_amd64.s
index 088f724704..54f647322b 100644
--- a/src/pkg/math/big/arith_amd64.s
+++ b/src/pkg/math/big/arith_amd64.s
@@ -266,9 +266,9 @@ E7:	SUBL $1, BX		// i--
 TEXT ·bitLen(SB),7,$0
 	BSRQ x+0(FP), AX
 	JZ Z1
-	INCQ AX
-	MOVQ AX, n+8(FP)
+	INCL AX
+	MOVL AX, n+8(FP)
 	RET
 
-Z1:	MOVQ $0, n+8(FP)
+Z1:	MOVL $0, n+8(FP)
 	RET