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-rwxr-xr-xcrypto/aes/asm/aes-x86_64.pl7
1 files changed, 4 insertions, 3 deletions
diff --git a/crypto/aes/asm/aes-x86_64.pl b/crypto/aes/asm/aes-x86_64.pl
index 44e0bf8cae3a..f616f1751f7e 100755
--- a/crypto/aes/asm/aes-x86_64.pl
+++ b/crypto/aes/asm/aes-x86_64.pl
@@ -1198,19 +1198,20 @@ AES_cbc_encrypt:
ret
.align 4
.Lcbc_enc_tail:
- cmp $inp,$out
- je .Lcbc_enc_in_place
+ mov %rax,%r11
+ mov %rcx,%r12
mov %r10,%rcx
mov $inp,%rsi
mov $out,%rdi
.long 0xF689A4F3 # rep movsb
-.Lcbc_enc_in_place:
mov \$16,%rcx # zero tail
sub %r10,%rcx
xor %rax,%rax
.long 0xF689AAF3 # rep stosb
mov $out,$inp # this is not a mistake!
movq \$16,$_len # len=16
+ mov %r11,%rax
+ mov %r12,%rcx
jmp .Lcbc_enc_loop # one more spin...
#----------------------------- DECRYPT -----------------------------#
.align 16