From: Andy Polyakov <appro@openssl.org>
Date: Mon, 19 Nov 2012 15:02:34 +0000 (+0000)
Subject: x86_64-gcc.c: resore early clobber constraint [from HEAD].
X-Git-Tag: OpenSSL_1_0_2-beta1~561
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=a060fc3b8eb7f965103d88d92ac0e1b0c23b26bc;p=openssl

x86_64-gcc.c: resore early clobber constraint [from HEAD].

Submitted by: Florian Weimer
---

diff --git a/crypto/bn/asm/x86_64-gcc.c b/crypto/bn/asm/x86_64-gcc.c
index d34d2dce09..dfb7506267 100644
--- a/crypto/bn/asm/x86_64-gcc.c
+++ b/crypto/bn/asm/x86_64-gcc.c
@@ -199,7 +199,7 @@ BN_ULONG bn_add_words (BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp,int
 	"	lea	1(%2),%2	\n"
 	"	loop	1b		\n"
 	"	sbbq	%0,%0		\n"
-		: "=r"(ret),"+c"(n),"+r"(i)
+		: "=&r"(ret),"+c"(n),"+r"(i)
 		: "r"(rp),"r"(ap),"r"(bp)
 		: "cc"
 	);
@@ -224,7 +224,7 @@ BN_ULONG bn_sub_words (BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp,int
 	"	lea	1(%2),%2	\n"
 	"	loop	1b		\n"
 	"	sbbq	%0,%0		\n"
-		: "=r"(ret),"+c"(n),"+r"(i)
+		: "=&r"(ret),"+c"(n),"+r"(i)
 		: "r"(rp),"r"(ap),"r"(bp)
 		: "cc"
 	);