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| author | Georg-Johann Lay <avr@gjlay.de> | 2024-07-12 13:02:55 +0200 |
|---|---|---|
| committer | Georg-Johann Lay <avr@gjlay.de> | 2024-07-16 16:29:49 +0200 |
| commit | a074780fce3751cbedc0307dd1967a5a7d8e5660 (patch) | |
| tree | fc964e89d3acf34daa984e140c6822f1b9bb54d8 /gcc/expr.cc | |
| parent | d9709fafb2c498ba2f4c920f953c9b78fa3bf114 (diff) | |
| download | gcc-a074780fce3751cbedc0307dd1967a5a7d8e5660.zip gcc-a074780fce3751cbedc0307dd1967a5a7d8e5660.tar.gz gcc-a074780fce3751cbedc0307dd1967a5a7d8e5660.tar.bz2 | |
AVR: Overhaul add and sub insns that extend one operand.
These are insns of the forms
(set (regA:M)
(plus:M (extend:M (regB:L))
(regA:M)))
and
(set (regA:M)
(minus:M (regA:M)
(extend:M (regB:L))))
where "extend" may be a sign-extend or zero-extend,
and the integer modes are SImode >= M > L >= QImode.
The existing patterns are now represented in terms of insns
with mode iterators and a code iterator over any_extend,
and these new insn support all valid combinations of M and L
(which previously was not the case).
gcc/
* config/avr/avr.cc (avr_out_minus): Assimilate into...
(avr_out_plus_ext): ...this new function.
(avr_adjust_insn_length) [ADJUST_LEN_PLUS_EXT]: Handle case.
(avr_rtx_costs_1) [PLUS, MINUS]: Adjust RTX costs.
* config/avr/avr.md (adjust_len) <plus_ext>: Add new attribute value.
(*addpsi3_zero_extend.hi_split): Assimilate...
(*addpsi3_zero_extend.qi_split): Assimilate...
(*addsi3_zero_extend_split): Assimilate...
(*addsi3_zero_extend.hi_split): Assimilate...
(*addpsi3_sign_extend.hi_split): Assimilate...
(*addhi3.sign_extend1_split): Assimilate...
(*add<PSISI:mode>3.<code>.<QIPSI:mode>_split): ...into this
new insn-and-split.
(*addpsi3_zero_extend.hi): Assimilate...
(*addpsi3_zero_extend.qi): Assimilate...
(*addsi3_zero_extend): Assimilate...
(*addsi3_zero_extend.hi): Assimilate...
(*addpsi3_sign_extend.hi): Assimilate...
(*addhi3.sign_extend1): Assimilate...
(*add<PSISI:mode>3.<code>.<QIPSI:mode>): ...into this new insn.
(*subpsi3_sign_extend.hi_split): Assimilate...
(*subhi3.sign_extend2_split): Assimilate...
(*sub<HISI:mode>3.zero_extend.<QIPSI:mode>_split): Assimilate...
(*sub<HISI:mode>3.<code><QIPSI:mode>_split): ...into this new
insn-and-split.
(*subpsi3_sign_extend.hi): Assimilate...
(*subhi3.sign_extend2): Assimilate...
(*sub<HISI:mode>3.zero_extend.<QIPSI:mode>): Assimilate...
(*sub<HISI:mode>3.<code>.<QIPSI:mode>): ...into this new insn.
(*sub<HISI:mode>3.zero_extend.<QIPSI:mode>): Use avr_out_plus_ext
for asm out.
* config/avr/avr-protos.h (avr_out_minus): Remove.
(avr_out_plus_ext): New proto.
gcc/testsuite/
* gcc.target/avr/torture/add-extend.c: New test.
* gcc.target/avr/torture/sub-extend.c: New test.
Diffstat (limited to 'gcc/expr.cc')
0 files changed, 0 insertions, 0 deletions