r238381 - in /trunk/gcc: ChangeLog config/avr/a...

[gjl@gcc.gnu.org]

Author: gjl
Date: Fri Jul 15 16:25:38 2016
New Revision: 238381

URL: https://gcc.gnu.org/viewcvs?rev=238381&root=gcc&view=rev
Log:
	* config/avr/predicates.md (const_m255_to_m1_operand): New.
	* config/avr/constraints.md (Cn8, Ca1, Co1, Yx2): New constraints.
	* config/avr/avr.md (add<mode>3) <ALL1>: Make "r,0,r" more
	expensive.
	(*cmphi.zero-extend.0, *cmphi.zero-extend.1)
	(*usum_widenqihi3, *udiff_widenqihi3)
	(*addhi3_zero_extend.const): New combiner insns.
	(andqi3, iorqi3): Provide "l" (NO_LD_REGS) alternative if
	just 1 bit is affected.
	* config/avr/avr.c (avr_out_bitop) <QImode>: Don't access xop[3].
	(avr_out_compare) [EQ,NE]: Tweak comparing d-regs against -1.


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