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skein_block_asm.S: use #ifdef not .ifdef, for Clang IAS

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Clang IAS does not support the --defsym argument, and

.ifndef SKEIN_USE_ASM

gets turned into

.ifndef 1792

by the preprocessor, which results in

error: expected identifier after '.ifdef'
.ifndef 1792
        ^

Use #ifdef instead, which still works with GNU as.

Reviewed by:	cem
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D25154
This commit is contained in:
Ed Maste 2020-06-05 18:37:04 +00:00
parent 007278ebf0
commit 16c0b6eef9
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=361843
1 changed files with 7 additions and 6 deletions
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13
sys/crypto/skein/amd64/skein_block_asm.s
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@ -18,20 +18,21 @@ _MASK_ALL_ = (256+512+1024) #all three algorithm bits
_MAX_FRAME_ = 240
#
#################
.ifndef SKEIN_USE_ASM
#ifndef SKEIN_USE_ASM
_USE_ASM_ = _MASK_ALL_
.else
#else
_USE_ASM_ = SKEIN_USE_ASM
.endif
#endif
#################
.ifndef SKEIN_LOOP #configure loop unrolling
#configure loop unrolling
#ifndef SKEIN_LOOP
_SKEIN_LOOP = 2 #default is fully unrolled for 256/512, twice for 1024
.else
#else
_SKEIN_LOOP = SKEIN_LOOP
.irp _NN_,%_SKEIN_LOOP #only display loop unrolling if default changed on command line
#.print "+++ SKEIN_LOOP = \_NN_"
.endr
.endif
#endif
# the unroll counts (0 --> fully unrolled)
SKEIN_UNROLL_256 = (_SKEIN_LOOP / 100) % 10
SKEIN_UNROLL_512 = (_SKEIN_LOOP / 10) % 10