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sha/asm/keccak1600-s390x.pl: resolve -march=z900 portability issue.

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Negative displacement in memory references was not originally specified,
so that for maximum coverage one should abstain from it, just like with
any other extension. [Unless it's guarded by run-time switch, but there
is no switch in keccak1600-s390x.]

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7239)

(cherry picked from commit fc97c882f4)
This commit is contained in:
Andy Polyakov 2018-09-17 12:36:37 +02:00
parent ed5108a387
commit 7ed9ad1cc3
1 changed files with 2 additions and 2 deletions
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crypto/sha/asm/keccak1600-s390x.pl
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@ -432,9 +432,9 @@ SHA3_absorb:
lrvg %r0,0($inp)
la $inp,8($inp)
xg %r0,0(%r1)
la %r1,8(%r1)
a${g}hi $len,-8
stg %r0,-8(%r1)
stg %r0,0(%r1)
la %r1,8(%r1)
brct $bsz,.Lblock_absorb
stm${g} $inp,$len,$frame+3*$SIZE_T($sp)