RE: [GCC, ARM] Backport trunk fix to 4.8 branch to properly handle rtx of ARM PLD instruction

[Terry Guo]

> 
> Preferably, particularly since you haven't supplied a testcase.
> 
> R.

Bug is reported at http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59826. I
shall update the patch to include the test case.

BR,
Terry