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

[Bernd Schmidt <bernds at codesourcery dot com>]

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?


Bernd

Attachment: entrymode.diff
Description: Text document