diff options
Diffstat (limited to 'deps/openssl/openssl/crypto/bn/asm/x86_64-mont5.pl')
| -rwxr-xr-x | deps/openssl/openssl/crypto/bn/asm/x86_64-mont5.pl | 27 |
1 files changed, 24 insertions, 3 deletions
diff --git a/deps/openssl/openssl/crypto/bn/asm/x86_64-mont5.pl b/deps/openssl/openssl/crypto/bn/asm/x86_64-mont5.pl index 820de3d6f6..64e668f140 100755 --- a/deps/openssl/openssl/crypto/bn/asm/x86_64-mont5.pl +++ b/deps/openssl/openssl/crypto/bn/asm/x86_64-mont5.pl @@ -53,6 +53,11 @@ if (!$addx && $win64 && ($flavour =~ /masm/ || $ENV{ASM} =~ /ml64/) && $addx = ($1>=12); } +if (!$addx && `$ENV{CC} -v 2>&1` =~ /((?:^clang|LLVM) version|based on LLVM) ([3-9])\.([0-9]+)/) { + my $ver = $2 + $3/100.0; # 3.1->3.01, 3.10->3.10 + $addx = ($ver>=3.03); +} + # int bn_mul_mont_gather5( $rp="%rdi"; # BN_ULONG *rp, $ap="%rsi"; # const BN_ULONG *ap, @@ -1779,6 +1784,15 @@ sqr8x_reduction: .align 32 .L8x_tail_done: add (%rdx),%r8 # can this overflow? + adc \$0,%r9 + adc \$0,%r10 + adc \$0,%r11 + adc \$0,%r12 + adc \$0,%r13 + adc \$0,%r14 + adc \$0,%r15 # can't overflow, because we + # started with "overhung" part + # of multiplication xor %rax,%rax neg $carry @@ -3125,6 +3139,15 @@ sqrx8x_reduction: .align 32 .Lsqrx8x_tail_done: add 24+8(%rsp),%r8 # can this overflow? + adc \$0,%r9 + adc \$0,%r10 + adc \$0,%r11 + adc \$0,%r12 + adc \$0,%r13 + adc \$0,%r14 + adc \$0,%r15 # can't overflow, because we + # started with "overhung" part + # of multiplication mov $carry,%rax # xor %rax,%rax sub 16+8(%rsp),$carry # mov 16(%rsp),%cf @@ -3168,13 +3191,11 @@ my ($rptr,$nptr)=("%rdx","%rbp"); my @ri=map("%r$_",(10..13)); my @ni=map("%r$_",(14..15)); $code.=<<___; - xor %rbx,%rbx + xor %ebx,%ebx sub %r15,%rsi # compare top-most words adc %rbx,%rbx mov %rcx,%r10 # -$num - .byte 0x67 or %rbx,%rax - .byte 0x67 mov %rcx,%r9 # -$num xor \$1,%rax sar \$3+2,%rcx # cf=0 |