On Wed, Aug 15, 2012 at 12:58 PM, Yuri Rumyantsev ysrum...@gmail.com wrote:
I send you new patch with fixed space/tab alignments.
About your comment.
It is more optimal to put adding of constant before adding of the
register only for case when 3 instructions must be generated to split
lea.
Hi Uros,
I send you new patch with fixed space/tab alignments.
About your comment.
It is more optimal to put adding of constant before adding of the
register only for case when 3 instructions must be generated to split
lea. In all other cases it does not matter and I left code
unchangeable.
Hi Uros,
Thanks a lot forr your comments.
I prepared new patch and ChangeLog. Testing of x32 is in progress.
It it OK for trunk?
2012-08-14 Yuri Rumyantsev ysrum...@gmail.com
* config/i386/i386-protos.h (ix86_split_lea_for_addr) : Add
additional argument.
*
Uros,
Let me try to explain you why I used such code duplication:
Here we have a common case of LEA with 3 different registers - r0
(target), r1(base), r2(index) and possible offset.
To get the better scheduling we first try to determine what register
is prefirable for inititial setting - r1 or
On Tue, Aug 14, 2012 at 3:35 PM, Yuri Rumyantsev ysrum...@gmail.com wrote:
Uros,
Let me try to explain you why I used such code duplication:
Here we have a common case of LEA with 3 different registers - r0
(target), r1(base), r2(index) and possible offset.
To get the better scheduling we
Hi all,
It is known that LEA splitting is one of the most critical problems
for Atom processors and changes try to improve it through:
1. More aggressive Lea splitting – do not perform splitting if
only split cost exceeds AGU stall .
2. Reordering splitting instructions to get better
Hello!
It is known that LEA splitting is one of the most critical problems
for Atom processors and changes try to improve it through:
1. More aggressive Lea splitting – do not perform splitting if
only split cost exceeds AGU stall .
2. Reordering splitting instructions to get
