Re: Emit more REG_EQUIV notes for function args (PR42235)

[Jeff Law <law@redhat.com>]

On 07/19/10 03:54, Bernd Schmidt wrote:
> On 07/15/2010 07:13 PM, Bernd Schmidt wrote:
>    
>> On 07/15/2010 12:28 AM, Jeff Law wrote:
>>      
>>> On 07/14/10 15:30, Bernd Schmidt wrote:
>>>        
>>>> If necessary I can try to test for a single insn with single_set and
>>>> push it to the sequence otherwise.
>>>>
>>>>          
>>> For the mn103, the conversions were single insns...
>>>
>>> Ultimately,  I think you have to peek at the insn(s) and see what
>>> registers they set/clobber.
>>>        
>> How's this?  Bootstrapped and tested on i686-linux.  ARM tests in progress.
>>      
> This seems to have caused a bootstrap failure on hppa.  A QImode value
> is passed in a SImode reg and then should get extended to DImode; we
> must make sure we use a qidi extension.  The following patch does that;
> I've not heard back whether it fixes the hppa bootstrap, but it seems to
> work on arm-linux (one extra testsuite failure caused by an unrelated
> change in the same tree).  Also bootstrapped on i686-linux.  Ok?
>    
Assuming John confirms it fixes the PA failure.  OK.

jeff