* 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.
From-SVN: r242739
