From: Andy Polyakov Date: Sat, 27 Aug 2016 18:47:57 +0000 (+0200) Subject: crypto/bn/*: x86[_64] division instruction doesn't handle constants, change constrain... X-Git-Tag: OpenSSL_1_1_0a~96 X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=ad2aa727cda07b324c447aab654cd77da2914c3b;p=oweals%2Fopenssl.git crypto/bn/*: x86[_64] division instruction doesn't handle constants, change constraint from 'g' to 'r'. Reviewed-by: Rich Salz Reviewed-by: Tim Hudson (cherry picked from commit 68b4a6e91f5acd42489bb9d1c580acc5ae457cad) --- diff --git a/crypto/bn/asm/x86_64-gcc.c b/crypto/bn/asm/x86_64-gcc.c index d46109a8c2..4f19abe43f 100644 --- a/crypto/bn/asm/x86_64-gcc.c +++ b/crypto/bn/asm/x86_64-gcc.c @@ -203,7 +203,7 @@ BN_ULONG bn_div_words(BN_ULONG h, BN_ULONG l, BN_ULONG d) BN_ULONG ret, waste; asm("divq %4":"=a"(ret), "=d"(waste) - : "a"(l), "d"(h), "g"(d) + : "a"(l), "d"(h), "r"(d) : "cc"); return ret; diff --git a/crypto/bn/bn_div.c b/crypto/bn/bn_div.c index 0bec12b1c8..99abf35c41 100644 --- a/crypto/bn/bn_div.c +++ b/crypto/bn/bn_div.c @@ -105,7 +105,7 @@ int BN_div(BIGNUM *dv, BIGNUM *rem, const BIGNUM *m, const BIGNUM *d, ({ asm volatile ( \ "divl %4" \ : "=a"(q), "=d"(rem) \ - : "a"(n1), "d"(n0), "g"(d0) \ + : "a"(n1), "d"(n0), "r"(d0) \ : "cc"); \ q; \ }) @@ -120,7 +120,7 @@ int BN_div(BIGNUM *dv, BIGNUM *rem, const BIGNUM *m, const BIGNUM *d, ({ asm volatile ( \ "divq %4" \ : "=a"(q), "=d"(rem) \ - : "a"(n1), "d"(n0), "g"(d0) \ + : "a"(n1), "d"(n0), "r"(d0) \ : "cc"); \ q; \ })