This is the mail archive of the gcc-patches@gcc.gnu.org mailing list for the GCC project.
| Index Nav: | [Date Index] [Subject Index] [Author Index] [Thread Index] | |
|---|---|---|
| Message Nav: | [Date Prev] [Date Next] | [Thread Prev] [Thread Next] |
| Other format: | [Raw text] | |
On Wed, May 28, 2008 at 8:11 AM, H.J. Lu <hjl.tools@gmail.com> wrote:
> On Wed, May 28, 2008 at 04:48:11PM +0200, Jan Hubicka wrote:
>> > Jan,
>> >
>> > Here is most recent i386 backend patch after Richard's review. Can you
>> > review it when you have time?
>>
>>
>> #define CAN_ELIMINATE(FROM, TO) \
>> - ((TO) == STACK_POINTER_REGNUM ? !frame_pointer_needed : 1)
>> + (stack_realign_fp \
>> + ? ((FROM) == ARG_POINTER_REGNUM && (TO) == HARD_FRAME_POINTER_REGNUM) \
>> + || ((FROM) == FRAME_POINTER_REGNUM && (TO) == STACK_POINTER_REGNUM) \
>> + : ((TO) == STACK_POINTER_REGNUM ? !frame_pointer_needed : 1))
>>
>> I would preffer to have this offline with some comments on what cases
>> are handling. The condition is quite hard to parse.
>
> I will make the change.
>
I am checking this patch into stack branch.
Thanks.
H.J.
----
2008-05-28 H.J. Lu <hongjiu.lu@intel.com>
* config/i386/i386.c (ix86_can_elimination): New.
* config/i386/i386-protos.h (ix86_can_eliminate): Likewise.
* config/i386/i386.h (CAN_ELIMINATE): Use it.
Attachment:
e.txt
Description: Text document
| Index Nav: | [Date Index] [Subject Index] [Author Index] [Thread Index] | |
|---|---|---|
| Message Nav: | [Date Prev] [Date Next] | [Thread Prev] [Thread Next] |