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* [Bug target/50446] New: [avr] Implement rotate patterns with offset 1
@ 2011-09-18 12:37 gjl at gcc dot gnu.org
  2011-09-18 13:08 ` [Bug target/50446] " gjl at gcc dot gnu.org
                   ` (3 more replies)
  0 siblings, 4 replies; 5+ messages in thread
From: gjl at gcc dot gnu.org @ 2011-09-18 12:37 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50446

             Bug #: 50446
           Summary: [avr] Implement rotate patterns with offset 1
    Classification: Unclassified
           Product: gcc
           Version: 4.6.1
            Status: UNCONFIRMED
          Keywords: missed-optimization
          Severity: enhancement
          Priority: P3
         Component: target
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: gjl@gcc.gnu.org
                CC: eric.weddington@atmel.com
            Target: avr


GCC tries rotate patterns, e.g. I see combiner try to match against rotate.
Rotate by one is easy to implement on AVR, so add these patterns/insns.


^ permalink raw reply	[flat|nested] 5+ messages in thread
* [Bug target/50446] [avr] Implement rotate patterns with offset 1
  2011-09-18 12:37 [Bug target/50446] New: [avr] Implement rotate patterns with offset 1 gjl at gcc dot gnu.org
@ 2011-09-18 13:08 ` gjl at gcc dot gnu.org
  2011-09-18 13:11 ` gjl at gcc dot gnu.org
                   ` (2 subsequent siblings)
  3 siblings, 0 replies; 5+ messages in thread
From: gjl at gcc dot gnu.org @ 2011-09-18 13:08 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50446

Georg-Johann Lay <gjl at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P4
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2011-09-18
   Target Milestone|---                         |4.7.0
     Ever Confirmed|0                           |1
      Known to fail|                            |4.6.1


^ permalink raw reply	[flat|nested] 5+ messages in thread
* [Bug target/50446] [avr] Implement rotate patterns with offset 1
  2011-09-18 12:37 [Bug target/50446] New: [avr] Implement rotate patterns with offset 1 gjl at gcc dot gnu.org
  2011-09-18 13:08 ` [Bug target/50446] " gjl at gcc dot gnu.org
@ 2011-09-18 13:11 ` gjl at gcc dot gnu.org
  2011-09-23 10:18 ` gjl at gcc dot gnu.org
  2011-09-23 11:05 ` gjl at gcc dot gnu.org
  3 siblings, 0 replies; 5+ messages in thread
From: gjl at gcc dot gnu.org @ 2011-09-18 13:11 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50446

--- Comment #1 from Georg-Johann Lay <gjl at gcc dot gnu.org> 2011-09-18 12:36:59 UTC ---
Created attachment 25310
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25310
rotate.c

Some test cases


^ permalink raw reply	[flat|nested] 5+ messages in thread
* [Bug target/50446] [avr] Implement rotate patterns with offset 1
  2011-09-18 12:37 [Bug target/50446] New: [avr] Implement rotate patterns with offset 1 gjl at gcc dot gnu.org
  2011-09-18 13:08 ` [Bug target/50446] " gjl at gcc dot gnu.org
  2011-09-18 13:11 ` gjl at gcc dot gnu.org
@ 2011-09-23 10:18 ` gjl at gcc dot gnu.org
  2011-09-23 11:05 ` gjl at gcc dot gnu.org
  3 siblings, 0 replies; 5+ messages in thread
From: gjl at gcc dot gnu.org @ 2011-09-23 10:18 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50446

--- Comment #2 from Georg-Johann Lay <gjl at gcc dot gnu.org> 2011-09-23 10:14:26 UTC ---
Author: gjl
Date: Fri Sep 23 10:14:23 2011
New Revision: 179116

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=179116
Log:
    PR target/50446
    * config/avr/avr.md (rotlqi3): Support all offsets 0..7.
    (rotlqi3_4): Turn insn into expander.
    (*rotlqi3): New insn.
    (rotlhi3, rotlsi3): Support rotate left/right by 1.
    (*rotlhi2.1, *rotlhi2.15): New insns.
    (*rotlsi2.1, *rotlsi2.31): New insns.
    * config/avr/constraints.md (C03, C05, C06, C07): New constraints.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/avr/avr.md
    trunk/gcc/config/avr/constraints.md


^ permalink raw reply	[flat|nested] 5+ messages in thread
* [Bug target/50446] [avr] Implement rotate patterns with offset 1
  2011-09-18 12:37 [Bug target/50446] New: [avr] Implement rotate patterns with offset 1 gjl at gcc dot gnu.org
                   ` (2 preceding siblings ...)
  2011-09-23 10:18 ` gjl at gcc dot gnu.org
@ 2011-09-23 11:05 ` gjl at gcc dot gnu.org
  3 siblings, 0 replies; 5+ messages in thread
From: gjl at gcc dot gnu.org @ 2011-09-23 11:05 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50446

Georg-Johann Lay <gjl at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED

--- Comment #3 from Georg-Johann Lay <gjl at gcc dot gnu.org> 2011-09-23 10:17:11 UTC ---
Closed for 4.7 milestone.


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2011-09-18 12:37 [Bug target/50446] New: [avr] Implement rotate patterns with offset 1 gjl at gcc dot gnu.org
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2011-09-18 13:11 ` gjl at gcc dot gnu.org
2011-09-23 10:18 ` gjl at gcc dot gnu.org
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