illegally shared subreg

[Stuart Hastings]

On Friday, Oct 11, 2002, at 12:04 US/Pacific, Geoff Keating wrote:

>> Date: Fri, 11 Oct 2002 10:31:40 -0400 (EDT)
>> From: "Kaveh R. Ghazi" <ghazi@caip.rutgers.edu>
>
>> Geoff/Stuart,
>>
>> This patch:
>>
>>> 2002-10-10  Stuart Hastings  <stuart@apple.com>
>>>
>>> 	* cse.c (struct cse_reg_info): Add subreg_ticked.
>>> 	(SUBREG_TICKED): New.
>>> 	(get_cse_reg_info): Initialize SUBREG_TICKED.
>>> 	(mention_regs): Use it.
>>> 	(invalidate): Set SUBREG_TICKED.
>>> 	(invalidate_for_call): Likewise.
>>> 	(addr_affects_sp_p): Likewise.
>>
>> can't be right.  It causes these new warnings:
>>
>>> cse.c:1226: warning: comparison between pointer and integer
>>> cse.c:1233: warning: assignment makes integer from pointer without a 
>>> cast
>>
>> because you've got an int on one side and an rtx on the other.
>> (Irix6-cc gets a hard error on these lines instead of a warning.)
>
> *sigh*.  The code would have worked in nearly all circumstances, since
> REGs are usually shared.  I will commit a patch (following Graham's
> suggestion) to fix the problem shortly.

My apologies for causing the problem, and thanks to Kaveh, Graham, and 
Geoff for resolving it so quickly.

stuart hastings
Apple Computer