toolchain/gcc/patches/4.3.5/948-avr32_fix_reorg_opt_bug11763.patch

   1 --- a/gcc/config/avr32/avr32.c
   2 +++ b/gcc/config/avr32/avr32.c
   3 @@ -6501,12 +6501,23 @@ avr32_reorg_optimization (void)
   4                          continue;
   5
   6                       set = single_set (scan);
   7 -                     if (set && rtx_equal_p (src_reg, SET_DEST (set)))
   8 -                       {
   9 -                         link = scan;
  10 -                         break;
  11 -                       }
  12 -
  13 +                      // Fix for bug #11763 : the following if condition
  14 +                      // has been modified and else part is included to
  15 +                      // set the link to NULL_RTX.
  16 +                      // if (set && rtx_equal_p (src_reg, SET_DEST (set)))
  17 +                      if (set && (REGNO(src_reg) == REGNO(SET_DEST(set))))
  18 +                       {
  19 +                         if (rtx_equal_p (src_reg, SET_DEST (set)))
  20 +                         {
  21 +                           link = scan;
  22 +                           break;
  23 +                          }
  24 +                         else
  25 +                          {
  26 +                            link = NULL_RTX;
  27 +                            break;
  28 +                          }
  29 +                       }
  30                      }
  31
  32