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Remove redundant assignment in felem_mul_ref in p521

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ftmp4 is assigned immediately before receiving the reduced output of the
multiplication of ftmp and ftmp3, without being read inbetween these
assignments. Remove redundant assignment.

Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19766)
This commit is contained in:
Rohan McLure 2022-11-25 14:41:08 +11:00 committed by Hugo Landau
parent 4a7231df5c
commit 3d4dfeb28a
1 changed files with 0 additions and 1 deletions
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crypto/ec/ecp_nistp521.c
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@ -782,7 +782,6 @@ static void felem_inv(felem out, const felem in)
felem_reduce(ftmp3, tmp); /* 2^7 - 2^3 */
felem_square(tmp, ftmp3);
felem_reduce(ftmp3, tmp); /* 2^8 - 2^4 */
felem_assign(ftmp4, ftmp3);
felem_mul(tmp, ftmp3, ftmp);
felem_reduce(ftmp4, tmp); /* 2^8 - 2^1 */
felem_square(tmp, ftmp4);