[Bug target/110088] [avr] Improve operation with const on l-reg after move from d-reg

2023-06-02 Thread gjl at gcc dot gnu.org via Gcc-bugs 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110088

Georg-Johann Lay  changed:

   What|Removed |Added

 Resolution|--- |FIXED
 Status|UNCONFIRMED |RESOLVED

--- Comment #4 from Georg-Johann Lay  ---
Fixed in v12.4 and v13.2+.

[Bug target/110088] [avr] Improve operation with const on l-reg after move from d-reg

2023-06-02 Thread cvs-commit at gcc dot gnu.org via Gcc-bugs 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110088

--- Comment #3 from CVS Commits  ---
The releases/gcc-12 branch has been updated by Georg-Johann Lay
:

https://gcc.gnu.org/g:6f8e64989c2418bb8a4050fc1f50039a7b9a0225

commit r12-9674-g6f8e64989c2418bb8a4050fc1f50039a7b9a0225
Author: Georg-Johann Lay 
Date:   Fri Jun 2 12:41:07 2023 +0200

target/110088: Improve operation of l-reg with const after move from d-reg.

After reload, there may be sequences like
   lreg = dreg
   lreg = lreg  const
with an LD_REGS dreg, non-LD_REGS lreg, and  in PLUS, IOR, AND.
If dreg dies after the first insn, it is possible to use
   dreg = dreg  const
   lreg = dreg
instead which is more efficient.

gcc/
PR target/110088
* config/avr/avr.md: Add an RTL peephole to optimize operations on
non-LD_REGS after a move from LD_REGS.
(piaop): New code iterator.

[Bug target/110088] [avr] Improve operation with const on l-reg after move from d-reg

2023-06-02 Thread cvs-commit at gcc dot gnu.org via Gcc-bugs 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110088

--- Comment #2 from CVS Commits  ---
The releases/gcc-13 branch has been updated by Georg-Johann Lay
:

https://gcc.gnu.org/g:7cbaf2f96ec884d60e02d5d2a8a2f44ae0d390fd

commit r13-7408-g7cbaf2f96ec884d60e02d5d2a8a2f44ae0d390fd
Author: Georg-Johann Lay 
Date:   Fri Jun 2 12:41:07 2023 +0200

target/110088: Improve operation of l-reg with const after move from d-reg.

After reload, there may be sequences like
   lreg = dreg
   lreg = lreg  const
with an LD_REGS dreg, non-LD_REGS lreg, and  in PLUS, IOR, AND.
If dreg dies after the first insn, it is possible to use
   dreg = dreg  const
   lreg = dreg
instead which is more efficient.

gcc/
PR target/110088
* config/avr/avr.md: Add an RTL peephole to optimize operations on
non-LD_REGS after a move from LD_REGS.
(piaop): New code iterator.

[Bug target/110088] [avr] Improve operation with const on l-reg after move from d-reg

2023-06-02 Thread cvs-commit at gcc dot gnu.org via Gcc-bugs 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110088

--- Comment #1 from CVS Commits  ---
The master branch has been updated by Georg-Johann Lay :

https://gcc.gnu.org/g:7bf89a919fdab9e18b7ad3efaa1a79f1d7520ddf

commit r14-1492-g7bf89a919fdab9e18b7ad3efaa1a79f1d7520ddf
Author: Georg-Johann Lay 
Date:   Fri Jun 2 12:41:07 2023 +0200

target/110088: Improve operation of l-reg with const after move from d-reg.

After reload, there may be sequences like
   lreg = dreg
   lreg = lreg  const
with an LD_REGS dreg, non-LD_REGS lreg, and  in PLUS, IOR, AND.
If dreg dies after the first insn, it is possible to use
   dreg = dreg  const
   lreg = dreg
instead which is more efficient.

gcc/
PR target/110088
* config/avr/avr.md: Add an RTL peephole to optimize operations on
non-LD_REGS after a move from LD_REGS.
(piaop): New code iterator.

[Bug target/110088] [avr] Improve operation with const on l-reg after move from d-reg

2023-06-02 Thread gjl at gcc dot gnu.org via Gcc-bugs 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110088

Georg-Johann Lay  changed:

   What|Removed |Added

 Target||avr
   Keywords||missed-optimization
   Priority|P3  |P5