hphp/test/quick/hopt-reg-spill.php

   1 <?php
   2 function foo($t0, $t1, $t2, $t3, $t4, $t5, $t6, $t7,
   3              $t8, $t9, $t10, $t11, $t12, $t13, $t14, $t15) {
   4   $sum = 0;
   5
   6   $sum = $sum + $t0;
   7   $sum = $sum + $t1;
   8   $sum = $sum + $t2;
   9   $sum = $sum + $t3;
  10   $sum = $sum + $t4;
  11   $sum = $sum + $t5;
  12   $sum = $sum + $t6;
  13   $sum = $sum + $t7;
  14   $sum = $sum + $t8;
  15   $sum = $sum + $t9;
  16   $sum = $sum + $t10;
  17   $sum = $sum + $t11;
  18   $sum = $sum + $t12;
  19   $sum = $sum + $t13;
  20   $sum = $sum + $t14;
  21   $sum = $sum + $t15;
  22
  23   $tmp = $t0; $t0 = $t15; $t15 = $tmp;
  24   $tmp = $t1; $t1 = $t14; $t14 = $tmp;
  25   $tmp = $t2; $t2 = $t13; $t13 = $tmp;
  26   $tmp = $t3; $t3 = $t12; $t12 = $tmp;
  27   $tmp = $t4; $t4 = $t11; $t11 = $tmp;
  28   $tmp = $t5; $t5 = $t10; $t10 = $tmp;
  29   $tmp = $t6; $t6 = $t9; $t9 = $tmp;
  30   $tmp = $t7; $t7 = $t8; $t8 = $tmp;
  31
  32   $sum = $sum + $t0;
  33   $sum = $sum + $t1;
  34   $sum = $sum + $t2;
  35   $sum = $sum + $t3;
  36   $sum = $sum + $t4;
  37   $sum = $sum + $t5;
  38   $sum = $sum + $t6;
  39   $sum = $sum + $t7;
  40   $sum = $sum + $t8;
  41   $sum = $sum + $t9;
  42   $sum = $sum + $t10;
  43   $sum = $sum + $t11;
  44   $sum = $sum + $t12;
  45   $sum = $sum + $t13;
  46   $sum = $sum + $t14;
  47   $sum = $sum + $t15;
  48
  49   if ($sum != 0)
  50     echo $sum . "\n";
  51 }
  52
  53 foo(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15);