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https://github.com/golang/go
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cmd/compile/internal/ssa: optimize rules Zero and Move on loong64
goos: linux
goarch: loong64
pkg: runtime
cpu: Loongson-3A6000 @ 2500.00MHz
│ old.bench │ new.bench │
│ sec/op │ sec/op vs base │
ClearFat7 3.6020n ± 0% 0.5087n ± 1% -85.88% (p=0.000 n=20)
ClearFat8 0.5137n ± 0% 0.8004n ± 0% +55.81% (p=0.000 n=20)
ClearFat11 5.2030n ± 0% 0.5082n ± 1% -90.23% (p=0.000 n=20)
ClearFat12 0.8244n ± 0% 0.8004n ± 0% -2.91% (p=0.000 n=20)
ClearFat13 6.0030n ± 0% 0.5077n ± 1% -91.54% (p=0.000 n=20)
ClearFat14 6.4030n ± 0% 0.8004n ± 0% -87.50% (p=0.000 n=20)
ClearFat15 6.8030n ± 0% 0.5065n ± 1% -92.55% (p=0.000 n=20)
ClearFat16 2.4010n ± 0% 0.8004n ± 0% -66.66% (p=0.000 n=20)
ClearFat24 3.202n ± 0% 1.601n ± 0% -50.00% (p=0.000 n=20)
ClearFat32 4.002n ± 0% 2.001n ± 0% -50.00% (p=0.000 n=20)
ClearFat40 4.802n ± 0% 1.601n ± 0% -66.66% (p=0.000 n=20)
ClearFat48 5.603n ± 0% 2.001n ± 0% -64.29% (p=0.000 n=20)
ClearFat56 6.403n ± 0% 2.001n ± 0% -68.75% (p=0.000 n=20)
ClearFat64 7.204n ± 0% 2.401n ± 0% -66.67% (p=0.000 n=20)
ClearFat72 8.004n ± 0% 2.001n ± 0% -75.00% (p=0.000 n=20)
ClearFat128 14.010n ± 0% 3.218n ± 0% -77.03% (p=0.000 n=20)
ClearFat256 26.810n ± 0% 6.727n ± 0% -74.91% (p=0.000 n=20)
ClearFat512 52.43n ± 0% 16.40n ± 0% -68.72% (p=0.000 n=20)
ClearFat1024 103.65n ± 0% 37.49n ± 0% -63.83% (p=0.000 n=20)
ClearFat1032 104.50n ± 0% 52.83n ± 0% -49.44% (p=0.000 n=20)
ClearFat1040 105.30n ± 0% 53.23n ± 0% -49.45% (p=0.000 n=20)
CopyFat7 6.0030n ± 0% 0.6048n ± 0% -89.93% (p=0.000 n=20)
CopyFat8 0.8004n ± 0% 0.5974n ± 0% -25.37% (p=0.000 n=20)
CopyFat11 9.2050n ± 0% 0.6057n ± 0% -93.42% (p=0.000 n=20)
CopyFat12 0.8103n ± 0% 0.6064n ± 0% -25.16% (p=0.000 n=20)
CopyFat13 6.4030n ± 0% 0.6052n ± 0% -90.55% (p=0.000 n=20)
CopyFat14 6.8040n ± 0% 0.6064n ± 0% -91.09% (p=0.000 n=20)
CopyFat15 7.2040n ± 0% 0.6071n ± 0% -91.57% (p=0.000 n=20)
CopyFat16 2.8010n ± 0% 0.6064n ± 0% -78.35% (p=0.000 n=20)
CopyFat24 3.602n ± 0% 2.001n ± 0% -44.45% (p=0.000 n=20)
CopyFat32 4.402n ± 0% 2.001n ± 0% -54.54% (p=0.000 n=20)
CopyFat64 7.604n ± 0% 2.802n ± 0% -63.15% (p=0.000 n=20)
CopyFat72 8.405n ± 0% 3.202n ± 0% -61.90% (p=0.000 n=20)
CopyFat128 14.410n ± 0% 5.480n ± 0% -61.97% (p=0.000 n=20)
CopyFat256 28.57n ± 0% 12.16n ± 0% -57.44% (p=0.000 n=20)
CopyFat512 63.63n ± 0% 24.88n ± 0% -60.90% (p=0.000 n=20)
CopyFat520 67.23n ± 0% 24.11n ± 0% -64.14% (p=0.000 n=20)
CopyFat1024 125.00n ± 0% 50.60n ± 0% -59.52% (p=0.000 n=20)
CopyFat1032 121.30n ± 0% 64.32n ± 0% -46.97% (p=0.000 n=20)
CopyFat1040 124.50n ± 0% 67.23n ± 0% -46.00% (p=0.000 n=20)
geomean 9.539n 2.779n -70.87%
Change-Id: Ic04e5f849f20ec3ec748d6763d4c9f8a1f21ee49
Reviewed-on: https://go-review.googlesource.com/c/go/+/592115
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Tim King <taking@google.com>
Reviewed-by: abner chenc <chenguoqi@loongson.cn>
This commit is contained in:
Xiaolin Zhao
abner chenc
parent
a9bd84e037
commit
9b88f58099
@ -260,137 +260,138 @@
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// zeroing
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(Zero [0] _ mem) => mem
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(Zero [1] ptr mem) => (MOVBstore ptr (MOVVconst [0]) mem)
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(Zero [2] {t} ptr mem) && t.Alignment()%2 == 0 =>
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(MOVHstore ptr (MOVVconst [0]) mem)
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(Zero [2] ptr mem) =>
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(MOVBstore [1] ptr (MOVVconst [0])
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(MOVBstore [0] ptr (MOVVconst [0]) mem))
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(Zero [4] {t} ptr mem) && t.Alignment()%4 == 0 =>
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(MOVWstore ptr (MOVVconst [0]) mem)
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(Zero [4] {t} ptr mem) && t.Alignment()%2 == 0 =>
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(MOVHstore [2] ptr (MOVVconst [0])
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(MOVHstore [0] ptr (MOVVconst [0]) mem))
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(Zero [4] ptr mem) =>
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(MOVBstore [3] ptr (MOVVconst [0])
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(MOVBstore [2] ptr (MOVVconst [0])
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(MOVBstore [1] ptr (MOVVconst [0])
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(MOVBstore [0] ptr (MOVVconst [0]) mem))))
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(Zero [8] {t} ptr mem) && t.Alignment()%8 == 0 =>
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(MOVVstore ptr (MOVVconst [0]) mem)
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(Zero [8] {t} ptr mem) && t.Alignment()%4 == 0 =>
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(MOVWstore [4] ptr (MOVVconst [0])
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(MOVWstore [0] ptr (MOVVconst [0]) mem))
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(Zero [8] {t} ptr mem) && t.Alignment()%2 == 0 =>
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(MOVHstore [6] ptr (MOVVconst [0])
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(MOVHstore [4] ptr (MOVVconst [0])
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(MOVHstore [2] ptr (MOVVconst [0])
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(MOVHstore [0] ptr (MOVVconst [0]) mem))))
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(Zero [2] ptr mem) => (MOVHstore ptr (MOVVconst [0]) mem)
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(Zero [3] ptr mem) =>
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(MOVBstore [2] ptr (MOVVconst [0])
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(MOVBstore [1] ptr (MOVVconst [0])
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(MOVBstore [0] ptr (MOVVconst [0]) mem)))
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(Zero [6] {t} ptr mem) && t.Alignment()%2 == 0 =>
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(MOVHstore ptr (MOVVconst [0]) mem))
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(Zero [4] {t} ptr mem) => (MOVWstore ptr (MOVVconst [0]) mem)
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(Zero [5] ptr mem) =>
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(MOVBstore [4] ptr (MOVVconst [0])
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(MOVWstore ptr (MOVVconst [0]) mem))
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(Zero [6] ptr mem) =>
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(MOVHstore [4] ptr (MOVVconst [0])
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(MOVHstore [2] ptr (MOVVconst [0])
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(MOVHstore [0] ptr (MOVVconst [0]) mem)))
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(Zero [12] {t} ptr mem) && t.Alignment()%4 == 0 =>
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(MOVWstore ptr (MOVVconst [0]) mem))
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(Zero [7] ptr mem) =>
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(MOVWstore [3] ptr (MOVVconst [0])
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(MOVWstore ptr (MOVVconst [0]) mem))
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(Zero [8] {t} ptr mem) => (MOVVstore ptr (MOVVconst [0]) mem)
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(Zero [9] ptr mem) =>
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(MOVBstore [8] ptr (MOVVconst [0])
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(MOVVstore ptr (MOVVconst [0]) mem))
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(Zero [10] ptr mem) =>
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(MOVHstore [8] ptr (MOVVconst [0])
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(MOVVstore ptr (MOVVconst [0]) mem))
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(Zero [11] ptr mem) =>
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(MOVWstore [7] ptr (MOVVconst [0])
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(MOVVstore ptr (MOVVconst [0]) mem))
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(Zero [12] ptr mem) =>
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(MOVWstore [8] ptr (MOVVconst [0])
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(MOVWstore [4] ptr (MOVVconst [0])
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(MOVWstore [0] ptr (MOVVconst [0]) mem)))
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(Zero [16] {t} ptr mem) && t.Alignment()%8 == 0 =>
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(MOVVstore ptr (MOVVconst [0]) mem))
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(Zero [13] ptr mem) =>
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(MOVVstore [5] ptr (MOVVconst [0])
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(MOVVstore ptr (MOVVconst [0]) mem))
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(Zero [14] ptr mem) =>
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(MOVVstore [6] ptr (MOVVconst [0])
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(MOVVstore ptr (MOVVconst [0]) mem))
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(Zero [15] ptr mem) =>
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(MOVVstore [7] ptr (MOVVconst [0])
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(MOVVstore ptr (MOVVconst [0]) mem))
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(Zero [16] ptr mem) =>
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(MOVVstore [8] ptr (MOVVconst [0])
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(MOVVstore [0] ptr (MOVVconst [0]) mem))
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(Zero [24] {t} ptr mem) && t.Alignment()%8 == 0 =>
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(MOVVstore [16] ptr (MOVVconst [0])
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(MOVVstore [8] ptr (MOVVconst [0])
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(MOVVstore [0] ptr (MOVVconst [0]) mem)))
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(MOVVstore ptr (MOVVconst [0]) mem))
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// strip off fractional word zeroing
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(Zero [s] ptr mem) && s%8 != 0 && s > 16 =>
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(Zero [s%8]
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(OffPtr <ptr.Type> ptr [s-s%8])
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(Zero [s-s%8] ptr mem))
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// medium zeroing uses a duff device
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// 8, and 128 are magic constants, see runtime/mkduff.go
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(Zero [s] {t} ptr mem)
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&& s%8 == 0 && s > 24 && s <= 8*128
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&& t.Alignment()%8 == 0 && !config.noDuffDevice =>
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(Zero [s] ptr mem)
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&& s%8 == 0 && s > 16 && s <= 8*128
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&& !config.noDuffDevice =>
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(DUFFZERO [8 * (128 - s/8)] ptr mem)
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// large or unaligned zeroing uses a loop
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(Zero [s] {t} ptr mem)
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&& (s > 8*128 || config.noDuffDevice) || t.Alignment()%8 != 0 =>
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(LoweredZero [t.Alignment()]
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// large zeroing uses a loop
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(Zero [s] ptr mem)
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&& s%8 == 0 && s > 8*128 =>
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(LoweredZero
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ptr
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(ADDVconst <ptr.Type> ptr [s-moveSize(t.Alignment(), config)])
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(ADDVconst <ptr.Type> ptr [s-8])
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mem)
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// moves
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(Move [0] _ _ mem) => mem
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(Move [1] dst src mem) => (MOVBstore dst (MOVBload src mem) mem)
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(Move [2] {t} dst src mem) && t.Alignment()%2 == 0 =>
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(MOVHstore dst (MOVHload src mem) mem)
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(Move [2] dst src mem) =>
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(MOVBstore [1] dst (MOVBload [1] src mem)
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(MOVBstore dst (MOVBload src mem) mem))
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(Move [4] {t} dst src mem) && t.Alignment()%4 == 0 =>
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(MOVWstore dst (MOVWload src mem) mem)
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(Move [4] {t} dst src mem) && t.Alignment()%2 == 0 =>
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(MOVHstore [2] dst (MOVHload [2] src mem)
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(MOVHstore dst (MOVHload src mem) mem))
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(Move [4] dst src mem) =>
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(MOVBstore [3] dst (MOVBload [3] src mem)
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(MOVBstore [2] dst (MOVBload [2] src mem)
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(MOVBstore [1] dst (MOVBload [1] src mem)
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(MOVBstore dst (MOVBload src mem) mem))))
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(Move [8] {t} dst src mem) && t.Alignment()%8 == 0 =>
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(MOVVstore dst (MOVVload src mem) mem)
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(Move [8] {t} dst src mem) && t.Alignment()%4 == 0 =>
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(MOVWstore [4] dst (MOVWload [4] src mem)
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(MOVWstore dst (MOVWload src mem) mem))
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(Move [8] {t} dst src mem) && t.Alignment()%2 == 0 =>
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(MOVHstore [6] dst (MOVHload [6] src mem)
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(MOVHstore [4] dst (MOVHload [4] src mem)
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(MOVHstore [2] dst (MOVHload [2] src mem)
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(MOVHstore dst (MOVHload src mem) mem))))
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(Move [1] dst src mem) => (MOVBstore dst (MOVBUload src mem) mem)
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(Move [2] dst src mem) => (MOVHstore dst (MOVHUload src mem) mem)
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(Move [3] dst src mem) =>
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(MOVBstore [2] dst (MOVBload [2] src mem)
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(MOVBstore [1] dst (MOVBload [1] src mem)
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(MOVBstore dst (MOVBload src mem) mem)))
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(Move [6] {t} dst src mem) && t.Alignment()%2 == 0 =>
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(MOVHstore [4] dst (MOVHload [4] src mem)
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(MOVHstore [2] dst (MOVHload [2] src mem)
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(MOVHstore dst (MOVHload src mem) mem)))
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(Move [12] {t} dst src mem) && t.Alignment()%4 == 0 =>
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(MOVWstore [8] dst (MOVWload [8] src mem)
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(MOVWstore [4] dst (MOVWload [4] src mem)
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(MOVWstore dst (MOVWload src mem) mem)))
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(Move [16] {t} dst src mem) && t.Alignment()%8 == 0 =>
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(MOVBstore [2] dst (MOVBUload [2] src mem)
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(MOVHstore dst (MOVHUload src mem) mem))
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(Move [4] dst src mem) => (MOVWstore dst (MOVWUload src mem) mem)
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(Move [5] dst src mem) =>
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(MOVBstore [4] dst (MOVBUload [4] src mem)
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(MOVWstore dst (MOVWUload src mem) mem))
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(Move [6] dst src mem) =>
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(MOVHstore [4] dst (MOVHUload [4] src mem)
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(MOVWstore dst (MOVWUload src mem) mem))
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(Move [7] dst src mem) =>
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(MOVWstore [3] dst (MOVWUload [3] src mem)
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(MOVWstore dst (MOVWUload src mem) mem))
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(Move [8] dst src mem) => (MOVVstore dst (MOVVload src mem) mem)
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(Move [9] dst src mem) =>
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(MOVBstore [8] dst (MOVBUload [8] src mem)
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(MOVVstore dst (MOVVload src mem) mem))
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(Move [10] dst src mem) =>
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(MOVHstore [8] dst (MOVHUload [8] src mem)
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(MOVVstore dst (MOVVload src mem) mem))
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(Move [11] dst src mem) =>
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(MOVWstore [7] dst (MOVWload [7] src mem)
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(MOVVstore dst (MOVVload src mem) mem))
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(Move [12] dst src mem) =>
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(MOVWstore [8] dst (MOVWUload [8] src mem)
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(MOVVstore dst (MOVVload src mem) mem))
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(Move [13] dst src mem) =>
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(MOVVstore [5] dst (MOVVload [5] src mem)
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(MOVVstore dst (MOVVload src mem) mem))
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(Move [14] dst src mem) =>
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(MOVVstore [6] dst (MOVVload [6] src mem)
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(MOVVstore dst (MOVVload src mem) mem))
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(Move [15] dst src mem) =>
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(MOVVstore [7] dst (MOVVload [7] src mem)
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(MOVVstore dst (MOVVload src mem) mem))
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(Move [16] dst src mem) =>
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(MOVVstore [8] dst (MOVVload [8] src mem)
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(MOVVstore dst (MOVVload src mem) mem))
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(Move [24] {t} dst src mem) && t.Alignment()%8 == 0 =>
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(MOVVstore [16] dst (MOVVload [16] src mem)
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(MOVVstore [8] dst (MOVVload [8] src mem)
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(MOVVstore dst (MOVVload src mem) mem)))
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// strip off fractional word move
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(Move [s] dst src mem) && s%8 != 0 && s > 16 =>
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(Move [s%8]
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(OffPtr <dst.Type> dst [s-s%8])
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(OffPtr <src.Type> src [s-s%8])
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(Move [s-s%8] dst src mem))
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// medium move uses a duff device
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(Move [s] {t} dst src mem)
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&& s%8 == 0 && s >= 24 && s <= 8*128 && t.Alignment()%8 == 0
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(Move [s] dst src mem)
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&& s%8 == 0 && s > 16 && s <= 8*128
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&& !config.noDuffDevice && logLargeCopy(v, s) =>
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(DUFFCOPY [16 * (128 - s/8)] dst src mem)
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// 16 and 128 are magic constants. 16 is the number of bytes to encode:
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// MOVV (R1), R23
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// ADDV $8, R1
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// MOVV R23, (R2)
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// ADDV $8, R2
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// and 128 is the number of such blocks. See runtime/duff_mips64.s:duffcopy.
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// MOVV (R20), R30
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// ADDV $8, R20
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// MOVV R30, (R21)
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// ADDV $8, R21
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// and 128 is the number of such blocks. See runtime/duff_loong64.s:duffcopy.
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// large or unaligned move uses a loop
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(Move [s] {t} dst src mem)
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&& s > 24 && logLargeCopy(v, s) || t.Alignment()%8 != 0 =>
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(LoweredMove [t.Alignment()]
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// large move uses a loop
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(Move [s] dst src mem)
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&& s%8 == 0 && s > 1024 && logLargeCopy(v, s) =>
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(LoweredMove
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dst
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src
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(ADDVconst <src.Type> src [s-moveSize(t.Alignment(), config)])
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(ADDVconst <src.Type> src [s-8])
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mem)
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// calls
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(StaticCall ...) => (CALLstatic ...)
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(ClosureCall ...) => (CALLclosure ...)
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