r248870 - in /trunk/gcc: ChangeLog config/aarch...

Mon Jun 5 08:49:00 GMT 2017

Author: ktkachov
Date: Mon Jun  5 08:49:59 2017
New Revision: 248870

URL: https://gcc.gnu.org/viewcvs?rev=248870&root=gcc&view=rev
Log:
[AArch64] Use SUBS for parallel subtraction and comparison with immediate

	* config/aarch64/aarch64.md (sub<mode>3_compare1_imm): New define_insn.
	(peephole2): New peephole2 to emit the above.
	* config/aarch64/predicates.md (aarch64_sub_immediate): New predicate.

	* gcc.target/aarch64/subs_compare_2.c: New test.


Added:
    trunk/gcc/testsuite/gcc.target/aarch64/subs_compare_2.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/aarch64/aarch64.md
    trunk/gcc/config/aarch64/predicates.md
    trunk/gcc/testsuite/ChangeLog