toolchain/gcc/patches/4.3.5/942-avr32_fix_32bit_div.patch

   1 --- a/gcc/config/avr32/lib1funcs.S
   2 +++ b/gcc/config/avr32/lib1funcs.S
   3 @@ -2257,10 +2257,13 @@ __avr32_f32_div:
   4
   5          /* Unpack */
   6          lsl     r12,1
   7 -        reteq   0                       /* Return zero if op1 is zero */
   8          lsl     r11,1
   9          breq    4f                      /* Check op2 for zero */
  10 -
  11 +
  12 +        tst     r12, r12
  13 +        moveq   r9, 0
  14 +        breq    12
  15 +
  16          /* Unpack op1*/
  17          /* exp: r9 */
  18          /* sf:  r12 */
  19 @@ -2279,9 +2282,14 @@ __avr32_f32_div:
  20          breq    13f /*If number is subnormal*/
  21          cp      r10, 0xff
  22          brhs    3f  /* Check op2 for NaN or Inf */
  23 -
  24          lsl     r11,7
  25          sbr     r11, 31 /*Implicit bit*/
  26 +
  27 +        cp.w    r9, 0
  28 +        subfeq  r12, 0
  29 +        reteq   0                       /* op1 is zero and op2 is not zero */
  30 +                                        /* or NaN so return zero */
  31 +
  32  14:
  33
  34          /* For UC3, store with predecrement is faster than stm */