diff options
| author | Andy Polyakov <appro@openssl.org> | 2016-05-01 14:09:15 +0200 |
|---|---|---|
| committer | Andy Polyakov <appro@openssl.org> | 2016-05-02 12:34:42 +0200 |
| commit | 8e9f1bb99e035e30450c85595150408dc1ac3d82 (patch) | |
| tree | 7bb949ad90ac5181c273c299a84a0f968454245d /crypto/chacha/asm/chacha-x86.pl | |
| parent | 24c2cd3967ed23acc0bd31a3781c4525e2e42a2c (diff) | |
chacha/asm/chacha-x86.pl: make it compile on legacy systems.
Usage of $ymm variable is a bit misleading here, it doesn't refer
to %ymm register bank, but rather to VEX instruction encoding,
which AMD XOP code path depends on.
Reviewed-by: Richard Levitte <levitte@openssl.org>
Diffstat (limited to 'crypto/chacha/asm/chacha-x86.pl')
| -rwxr-xr-x | crypto/chacha/asm/chacha-x86.pl | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/crypto/chacha/asm/chacha-x86.pl b/crypto/chacha/asm/chacha-x86.pl index 8b9696ff02..d18663badd 100755 --- a/crypto/chacha/asm/chacha-x86.pl +++ b/crypto/chacha/asm/chacha-x86.pl @@ -437,8 +437,10 @@ my ($ap,$bp,$cp,$dp)=map(($_&~3)+(($_-1)&3),($ai,$bi,$ci,$di)); # previous &function_begin("ChaCha20_ssse3"); &set_label("ssse3_shortcut"); +if ($ymm) { &test (&DWP(4,"ebp"),1<<11); # test XOP bit &jnz (&label("xop_shortcut")); +} &mov ($out,&wparam(0)); &mov ($inp,&wparam(1)); @@ -770,7 +772,7 @@ sub SSSE3ROUND { # critical path is 20 "SIMD ticks" per round } &asciz ("ChaCha20 for x86, CRYPTOGAMS by <appro\@openssl.org>"); -if ($xmm) { +if ($ymm) { my ($xa,$xa_,$xb,$xb_,$xc,$xc_,$xd,$xd_)=map("xmm$_",(0..7)); my ($out,$inp,$len)=("edi","esi","ecx"); |