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Add umull to the N1 cost model and define more variants of simple integer ops #78

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Jul 24, 2024
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Add umull to the N1 cost model and define more variants of simple integer ops #78

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38 changes: 38 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 @@ -1665,12 +1665,32 @@ class neg(AArch64BasicArithmetic): # pylint: disable=missing-docstring,invalid-n
inputs = ["Xa"]
outputs = ["Xd"]

class negs(AArch64BasicArithmetic): # pylint: disable=missing-docstring,invalid-name
pattern = "negs <Xd>, <Xa>"
inputs = ["Xa"]
outputs = ["Xd"]
modifiesFlags=True

class ngc_zero(AArch64BasicArithmetic): # pylint: disable=missing-docstring,invalid-name
pattern = "ngc <Xd>, xzr"
inputs = []
outputs = ["Xd"]
dependsOnFlags=True

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

class ngcs_zero(AArch64BasicArithmetic): # pylint: disable=missing-docstring,invalid-name
pattern = "ngcs <Xd>, xzr"
inputs = []
outputs = ["Xd"]
modifiesFlags=True
dependsOnFlags=True

class adds(AArch64BasicArithmetic): # pylint: disable=missing-docstring,invalid-name
pattern = "adds <Xd>, <Xa>, <imm>"
inputs = ["Xa"]
Expand Down Expand Up @@ -1720,6 +1740,13 @@ class sbcs_zero(AArch64BasicArithmetic): # pylint: disable=missing-docstring,inv
modifiesFlags=True
dependsOnFlags=True

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

class sbcs_zero_to_zero(AArch64BasicArithmetic): # pylint: disable=missing-docstring,invalid-name
pattern = "sbcs xzr, <Xa>, xzr"
inputs = ["Xa"]
Expand Down Expand Up @@ -1980,6 +2007,12 @@ class csel_xzr_ne(AArch64ConditionalSelect): # pylint: disable=missing-docstring
outputs = ["Xd"]
dependsOnFlags=True

class csel_xzr2_ne(AArch64ConditionalSelect): # pylint: disable=missing-docstring,invalid-name
pattern = "csel <Xd>, xzr, <Xe>, <flag>"
inputs = ["Xe"]
outputs = ["Xd"]
dependsOnFlags=True

class csel_ne(AArch64ConditionalSelect): # pylint: disable=missing-docstring,invalid-name
pattern = "csel <Xd>, <Xe>, <Xf>, <flag>"
inputs = ["Xe", "Xf"]
Expand Down Expand Up @@ -2125,6 +2158,11 @@ class tst_xform(Tst): # pylint: disable=missing-docstring,invalid-name
inputs = ["Xa", "Xb"]
modifiesFlags=True

class cmp(Tst): # pylint: disable=missing-docstring,invalid-name
pattern = "cmp <Xa>, <Xb>"
inputs = ["Xa","Xb"]
modifiesFlags=True

class cmp_xzr(Tst): # pylint: disable=missing-docstring,invalid-name
pattern = "cmp <Xa>, xzr"
inputs = ["Xa"]
Expand Down
3 changes: 3 additions & 0 deletions slothy/targets/aarch64/neoverse_n1_experimental.py
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Original file line number Diff line number Diff line change
Expand Up @@ -121,6 +121,7 @@ def get_min_max_objective(slothy):
Tst : ExecutionUnit.I(),
AArch64ShiftedArithmetic : ExecutionUnit.M(),
Fmov : ExecutionUnit.M(),
umull_wform : ExecutionUnit.M(),
(AArch64HighMultiply,
AArch64Multiply) : ExecutionUnit.M(),
vdup : ExecutionUnit.M(),
Expand Down Expand Up @@ -158,6 +159,7 @@ def get_min_max_objective(slothy):
(AArch64HighMultiply) : 4,
(AArch64Multiply) : 3,
(vdup) : 1,
umull_wform : 1,
}

default_latencies = {
Expand Down Expand Up @@ -193,6 +195,7 @@ def get_min_max_objective(slothy):
AArch64HighMultiply : 5,
AArch64Multiply : 4,
(vdup) : 3,
umull_wform : 2,
}

def get_latency(src, out_idx, dst):
Expand Down
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