On 01/16/2018 06:41 AM, Segher Boessenkool wrote:
> On Mon, Dec 18, 2017 at 12:16:13PM -0700, Jeff Law wrote:
>> On 12/16/2017 02:03 PM, Segher Boessenkool wrote:
>>> In PR83424 combine's move_deaths puts a REG_DEAD not in the wrong place
>>> because dead_or_set_regno_p does not account for CLOBBER insns. This
>>> fixes it.
>>>
>>> Bootstrapped and tested on powerpc64-linux {-m32,-m64} and on x86_64-linux.
>>> Is this okay for trunk?
>>>
>>>
>>> Segher
>>>
>>>
>>> 2017-12-16 Segher Boessenkool <seg...@kernel.crashing.org>
>>>
>>> PR rtl-optimization/83424
>>> * rtlanal.c (dead_or_set_regno_p): Handle CLOBBER just like SET.
>>>
>>> gcc/testsuite/
>>> PR rtl-optimization/83424
>>> * gcc.dg/pr83424.c: New testsuite.
>> OK.
>
> Is this okay for backports to 7 and 6, too?
Yes.
jeff
