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| author | Michael Collison <michael.collison@arm.com> | 2016-11-23 07:47:25 +0000 |
|---|---|---|
| committer | Michael Collison <collison@gcc.gnu.org> | 2016-11-23 07:47:25 +0000 |
| commit | 43fd192f76a0121197dcc3975a49b79b201f6411 (patch) | |
| tree | e928fb5fdbc6ba8b63c59833f9f46e4eafc0ae9a /gcc/fold-const.c | |
| parent | ed9e2fa904c6112180bcba317908b49c106c0cd0 (diff) | |
| download | gcc-43fd192f76a0121197dcc3975a49b79b201f6411.zip gcc-43fd192f76a0121197dcc3975a49b79b201f6411.tar.gz gcc-43fd192f76a0121197dcc3975a49b79b201f6411.tar.bz2 | |
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.
From-SVN: r242739
Diffstat (limited to 'gcc/fold-const.c')
0 files changed, 0 insertions, 0 deletions