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[Bug target/50447] [avr] Better support of AND, OR, XOR and PLUS with constant integers for 16- and 32-bit values
- From: "gjl at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 23 Sep 2011 17:02:20 +0000
- Subject: [Bug target/50447] [avr] Better support of AND, OR, XOR and PLUS with constant integers for 16- and 32-bit values
- Auto-submitted: auto-generated
- References: <bug-50447-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50447
--- Comment #2 from Georg-Johann Lay <gjl at gcc dot gnu.org> 2011-09-23 17:02:20 UTC ---
Author: gjl
Date: Fri Sep 23 17:02:10 2011
New Revision: 179123
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=179123
Log:
PR target/50447
* config/avr/avr.md: (adjust_len): Add alternative "out_plus".
(addsi3): Rewrite using QI scratch register. Adjust text
peepholes using plus:SI.
(*addsi3_zero_extend.hi): New insn.
(*subsi3_zero_extend.hi): New insn.
(*subhi3_zero_extend1): Set attribute "cc" to "set_czn".
(*subsi3_zero_extend): Ditto.
(subsi3): Change predicate #2 to register_operand.
* config/avr/avr-protos.h (avr_out_plus): New prototype.
(avr_out_plus_1): New static function.
(avr_out_plus): New function.
(adjust_insn_length): Handle ADJUST_LEN_OUT_PLUS.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/avr/avr-protos.h
trunk/gcc/config/avr/avr.c
trunk/gcc/config/avr/avr.md