[GAS][ARM]Generate unpredictable warning for pc used in data processing instructions with register-shifted register operand
Tue Oct 11 13:06:00 GMT 2016
> In ARMARM (ARMv7-A and ARMv7-R edition),
Ah - good we are using the same manual.
> if d == 15 || n == 15 || m == 15 || s == 15 then UNPREDICTABLE;
Right - thanks - I was looking at the wrong instruction - CMN (register)
rather than CMN (register-shifted register). Doh!
It seems a little strange that the PC cannot be read by these type
of instructions, but if that is what the ARMARM says, then so be it.
More information about the Binutils