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-rw-r--r--crypto/bn/asm/modexp512-x86_64.pl2
1 files changed, 1 insertions, 1 deletions
diff --git a/crypto/bn/asm/modexp512-x86_64.pl b/crypto/bn/asm/modexp512-x86_64.pl
index 2788fc5bd9..06290ca009 100644
--- a/crypto/bn/asm/modexp512-x86_64.pl
+++ b/crypto/bn/asm/modexp512-x86_64.pl
@@ -1117,7 +1117,7 @@ mod_exp_512:
# adjust stack down and then align it with cache boundary
mov %rsp, %r8
sub \$($mem_size), %rsp
- and \$~63, %rsp
+ and \$-64, %rsp
# store previous stack pointer and arguments
mov %r8, (+$rsp_offset)(%rsp)