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Support more variants of adcs and cmp with xzr #54

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Apr 23, 2024
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Support more variants of adcs and cmp with xzr #54

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17 changes: 17 additions & 0 deletions slothy/targets/aarch64/aarch64_neon.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1745,6 +1745,18 @@ class adcs_zero2(AArch64BasicArithmetic): # pylint: disable=missing-docstring,in
modifiesFlags=True
dependsOnFlags=True

class adcs_to_zero(AArch64BasicArithmetic): # pylint: disable=missing-docstring,invalid-name
pattern = "adcs xzr, <Xa>, <Xb>"
inputs = ["Xa", "Xb"]
modifiesFlags=True
dependsOnFlags=True

class adcs_zero_r_to_zero(AArch64BasicArithmetic): # pylint: disable=missing-docstring,invalid-name
pattern = "adcs xzr, <Xa>, xzr"
inputs = ["Xa"]
modifiesFlags=True
dependsOnFlags=True

class adc(AArch64BasicArithmetic): # pylint: disable=missing-docstring,invalid-name
pattern = "adc <Xd>, <Xa>, <Xb>"
inputs = ["Xa", "Xb"]
Expand Down Expand Up @@ -2104,6 +2116,11 @@ class cmp_xzr(Tst): # pylint: disable=missing-docstring,invalid-name
inputs = ["Xa"]
modifiesFlags=True

class cmp_xzr2(Tst): # pylint: disable=missing-docstring,invalid-name
pattern = "cmp xzr, xzr"
inputs = []
modifiesFlags=True

class cmp_imm(Tst): # pylint: disable=missing-docstring,invalid-name
pattern = "cmp <Xa>, <imm>"
inputs = ["Xa"]
Expand Down
17 changes: 10 additions & 7 deletions slothy/targets/aarch64/cortex_a55.py
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Original file line number Diff line number Diff line change
Expand Up @@ -166,9 +166,10 @@ def get_min_max_objective(slothy):
(x_stp_with_imm_sp, w_stp_with_imm_sp, x_str_sp_imm, Str_X) : ExecutionUnit.SCALAR_STORE,
(x_ldr_stack_imm, ldr_const, ldr_sxtw_wform, Ldr_X) : ExecutionUnit.SCALAR_LOAD,
(umull_wform, mul_wform, umaddl_wform ): ExecutionUnit.SCALAR_MUL(),
( lsr, bic, bfi, add, add_imm, add_sp_imm, add2, add_lsr, add_lsl, adcs_zero2, cmn,
and_imm, nop, Vins, tst_wform, movk_imm, sub, sbcs_zero_to_zero, mov, ngc_zero,
subs_wform, asr_wform, and_imm_wform, lsr_wform, eor_wform) : ExecutionUnit.SCALAR(),
( lsr, bic, bfi, add, add_imm, add_sp_imm, add2, add_lsr, add_lsl,
adcs_to_zero, adcs_zero_r_to_zero, adcs_zero2, cmn,
and_imm, nop, Vins, tst_wform, movk_imm, sub, sbcs_zero_to_zero, cmp_xzr2,
mov, ngc_zero, subs_wform, asr_wform, and_imm_wform, lsr_wform, eor_wform) : ExecutionUnit.SCALAR(),
}

inverse_throughput = {
Expand All @@ -194,8 +195,9 @@ def get_min_max_objective(slothy):
(lsr, lsr_wform) : 1,
(umull_wform, mul_wform, umaddl_wform) : 1,
(and_twoarg, and_imm, and_imm_wform) : 1,
(add, add_imm, add2, add_lsr, add_lsl, add_sp_imm, adcs_zero2, cmn) : 1,
(sub, subs_wform, asr_wform, sbcs_zero_to_zero, ngc_zero) : 1,
(add, add_imm, add2, add_lsr, add_lsl, add_sp_imm, adcs_to_zero, adcs_zero2,
adcs_zero_r_to_zero, cmn) : 1,
(cmp_xzr2, sub, subs_wform, asr_wform, sbcs_zero_to_zero, ngc_zero) : 1,
(bfi) : 1,
(vshl, vshl, vushr) : 1,
(vusra) : 1,
Expand Down Expand Up @@ -238,8 +240,9 @@ def get_min_max_objective(slothy):
(umull_wform, mul_wform, umaddl_wform) : 3,
(and_imm, and_imm_wform) : 1,
(add2, add_lsr, add_lsl, add_sp_imm) : 2,
(add, add_imm, adcs_zero2, sub, subs_wform, asr_wform, sbcs_zero_to_zero,
cmn, ngc_zero) : 1,
(add, add_imm, adcs_to_zero, adcs_zero_r_to_zero, adcs_zero2, cmn,
sub, subs_wform, asr_wform, sbcs_zero_to_zero, cmp_xzr2,
ngc_zero) : 1,
(bfi) : 2,
(vshl, vushr) : 2,
(vusra) : 3,
Expand Down
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