md5-x86_86.pl: remove redundant instructions.

diff --git a/crypto/md5/asm/md5-x86_64.pl b/crypto/md5/asm/md5-x86_64.pl
index 867885435e2930d3de96664532f5403fadc059f2..bc46f1938728137f97869a19849f1bf67e69da8a 100755 (executable)
--- a/crypto/md5/asm/md5-x86_64.pl
+++ b/crypto/md5/asm/md5-x86_64.pl
@@ -25,8 +25,8 @@ sub round1_step
        xor     $y,             %r11d           /* y ^ ... */
        lea     $T_i($dst,%r10d),$dst           /* Const + dst + ... */
        and     $x,             %r11d           /* x & ... */
-       xor     $z,             %r11d           /* z ^ ... */
        mov     $k_next*4(%rsi),%r10d           /* (NEXT STEP) X[$k_next] */
+       xor     $z,             %r11d           /* z ^ ... */
        add     %r11d,          $dst            /* dst += ... */
        rol     \$$s,           $dst            /* dst <<< s */
        mov     $y,             %r11d           /* (NEXT STEP) z' = $y */
@@ -43,7 +43,6 @@ EOF
 sub round2_step
 {
     my ($pos, $dst, $x, $y, $z, $k_next, $T_i, $s) = @_;
-    $code .= " mov     1*4(%rsi),      %r10d           /* (NEXT STEP) X[1] */\n" if ($pos == -1);
     $code .= " mov     %edx,           %r11d           /* (NEXT STEP) z' = %edx */\n" if ($pos == -1);
     $code .= " mov     %edx,           %r12d           /* (NEXT STEP) z' = %edx */\n" if ($pos == -1);
     $code .= <<EOF;
@@ -69,12 +68,11 @@ EOF
 sub round3_step
 {
     my ($pos, $dst, $x, $y, $z, $k_next, $T_i, $s) = @_;
-    $code .= " mov     5*4(%rsi),      %r10d           /* (NEXT STEP) X[5] */\n" if ($pos == -1);
     $code .= " mov     %ecx,           %r11d           /* (NEXT STEP) y' = %ecx */\n" if ($pos == -1);
     $code .= <<EOF;
        lea     $T_i($dst,%r10d),$dst           /* Const + dst + ... */
-       mov     $k_next*4(%rsi),%r10d           /* (NEXT STEP) X[$k_next] */
        xor     $z,             %r11d           /* z ^ ... */
+       mov     $k_next*4(%rsi),%r10d           /* (NEXT STEP) X[$k_next] */
        xor     $x,             %r11d           /* x ^ ... */
        add     %r11d,          $dst            /* dst += ... */
        rol     \$$s,           $dst            /* dst <<< s */
@@ -91,16 +89,15 @@ EOF
 sub round4_step
 {
     my ($pos, $dst, $x, $y, $z, $k_next, $T_i, $s) = @_;
-    $code .= " mov     0*4(%rsi),      %r10d           /* (NEXT STEP) X[0] */\n" if ($pos == -1);
     $code .= " mov     \$0xffffffff,   %r11d\n" if ($pos == -1);
     $code .= " xor     %edx,           %r11d           /* (NEXT STEP) not z' = not %edx*/\n"
     if ($pos == -1);
     $code .= <<EOF;
        lea     $T_i($dst,%r10d),$dst           /* Const + dst + ... */
        or      $x,             %r11d           /* x | ... */
+       mov     $k_next*4(%rsi),%r10d           /* (NEXT STEP) X[$k_next] */
        xor     $y,             %r11d           /* y ^ ... */
        add     %r11d,          $dst            /* dst += ... */
-       mov     $k_next*4(%rsi),%r10d           /* (NEXT STEP) X[$k_next] */
        mov     \$0xffffffff,   %r11d
        rol     \$$s,           $dst            /* dst <<< s */
        xor     $y,             %r11d           /* (NEXT STEP) not z' = not $y */
@@ -178,7 +175,7 @@ round1_step( 0,'%ebx','%ecx','%edx','%eax','12','0x895cd7be','22');
 round1_step( 0,'%eax','%ebx','%ecx','%edx','13','0x6b901122', '7');
 round1_step( 0,'%edx','%eax','%ebx','%ecx','14','0xfd987193','12');
 round1_step( 0,'%ecx','%edx','%eax','%ebx','15','0xa679438e','17');
-round1_step( 1,'%ebx','%ecx','%edx','%eax', '0','0x49b40821','22');
+round1_step( 1,'%ebx','%ecx','%edx','%eax', '1','0x49b40821','22');
 
 round2_step(-1,'%eax','%ebx','%ecx','%edx', '6','0xf61e2562', '5');
 round2_step( 0,'%edx','%eax','%ebx','%ecx','11','0xc040b340', '9');
@@ -195,7 +192,7 @@ round2_step( 0,'%ebx','%ecx','%edx','%eax','13','0x455a14ed','20');
 round2_step( 0,'%eax','%ebx','%ecx','%edx', '2','0xa9e3e905', '5');
 round2_step( 0,'%edx','%eax','%ebx','%ecx', '7','0xfcefa3f8', '9');
 round2_step( 0,'%ecx','%edx','%eax','%ebx','12','0x676f02d9','14');
-round2_step( 1,'%ebx','%ecx','%edx','%eax', '0','0x8d2a4c8a','20');
+round2_step( 1,'%ebx','%ecx','%edx','%eax', '5','0x8d2a4c8a','20');
 
 round3_step(-1,'%eax','%ebx','%ecx','%edx', '8','0xfffa3942', '4');
 round3_step( 0,'%edx','%eax','%ebx','%ecx','11','0x8771f681','11');