r242739 - in /trunk/gcc: ChangeLog config/aarch...

[collison@gcc.gnu.org]

Author: collison
Date: Wed Nov 23 07:47:25 2016
New Revision: 242739

URL: https://gcc.gnu.org/viewcvs?rev=242739&root=gcc&view=rev
Log:
2016-11-22  Michael Collison  <michael.collison@arm.com>

	* config/aarch64/aarch64-protos.h
	(aarch64_and_split_imm1, aarch64_and_split_imm2)
	(aarch64_and_bitmask_imm): New prototypes
	* config/aarch64/aarch64.c (aarch64_and_split_imm1):
	New overloaded function to create bit mask covering the
	lowest to highest bits set.
	(aarch64_and_split_imm2): New overloaded functions to create bit
	mask of zeros between first and last bit set.
	(aarch64_and_bitmask_imm): New function to determine if a integer
	is a valid two instruction "and" operation.
	* config/aarch64/aarch64.md:(and<mode>3): New define_insn and _split
	allowing wider range of constants with "and" operations.
	* (ior<mode>3, xor<mode>3): Use new LOGICAL2 iterator to prevent
	"and" operator from matching restricted constant range used for
	ior and xor operators.
	* config/aarch64/constraints.md (UsO constraint): New SImode constraint
	for constants in "and" operantions.
	(UsP constraint): New DImode constraint for constants in "and" operations.
	* config/aarch64/iterators.md (lconst2): New mode iterator.
	(LOGICAL2): New code iterator.
	* config/aarch64/predicates.md (aarch64_logical_and_immediate): New
	predicate
	(aarch64_logical_and_operand): New predicate allowing extended constants
	for "and" operations.
	* testsuite/gcc.target/aarch64/and_const.c: New test to verify
	additional constants are recognized and fewer instructions generated.
	* testsuite/gcc.target/aarch64/and_const2.c: New test to verify
	additional constants are recognized and fewer instructions generated.
	

Added:
    trunk/gcc/testsuite/gcc.target/aarch64/and_const.c
    trunk/gcc/testsuite/gcc.target/aarch64/and_const2.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/aarch64/aarch64-protos.h
    trunk/gcc/config/aarch64/aarch64.c
    trunk/gcc/config/aarch64/aarch64.md
    trunk/gcc/config/aarch64/constraints.md
    trunk/gcc/config/aarch64/iterators.md
    trunk/gcc/config/aarch64/predicates.md
    trunk/gcc/testsuite/ChangeLog