[PATCH 7/7] SMS remove dependence on doloop: To identify read/write register as loop induction variable

[Shiva Chen]

Hi,

We use loop induction variable analysis to find count_reg.
Without doloop optimization, count_reg might be a READ_WRITE_REG.

E.g.  while (reg < 0x200) { MEM [++reg:SI] = 5}

READ_WRITE_REG won't identify as loop induction variable
and SMS will skip the loop. We modify loop-iv.c to identify this case.

Thanks,
Shiva

0007-To-identify-READ_WRITE_REG-as-loop-induction-variabl.patch
Description: 0007-To-identify-READ_WRITE_REG-as-loop-induction-variabl.patch