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cmd/compile: fold most repetitive operations to simplify riscv64 rules
Most of repetitive rules in riscv64 are simple, so that we can simplify and fold it with | without losting rules readability. No change in the actual compiler code after running rulegen. Change-Id: Id0bbfd93e63b49b7f66ecb62eb9440b4900c7938 Reviewed-on: https://go-review.googlesource.com/c/go/+/498455 Reviewed-by: Keith Randall <khr@google.com> Reviewed-by: Keith Randall <khr@golang.org> Run-TryBot: M Zhuo <mzh@golangcn.org> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Michael Knyszek <mknyszek@google.com> Reviewed-by: M Zhuo <mzh@golangcn.org>
This commit is contained in:
Junxian Zhu
M Zhuo
parent
d9f7e1dc73
commit
ada5f8a46d
@ -3,21 +3,11 @@
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// license that can be found in the LICENSE file.
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// Lowering arithmetic
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(Add64 ...) => (ADD ...)
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(AddPtr ...) => (ADD ...)
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(Add32 ...) => (ADD ...)
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(Add16 ...) => (ADD ...)
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(Add8 ...) => (ADD ...)
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(Add32F ...) => (FADDS ...)
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(Add64F ...) => (FADDD ...)
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(Add(Ptr|64|32|16|8) ...) => (ADD ...)
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(Add(64|32)F ...) => (FADD(D|S) ...)
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(Sub64 ...) => (SUB ...)
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(SubPtr ...) => (SUB ...)
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(Sub32 ...) => (SUB ...)
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(Sub16 ...) => (SUB ...)
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(Sub8 ...) => (SUB ...)
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(Sub32F ...) => (FSUBS ...)
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(Sub64F ...) => (FSUBD ...)
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(Sub(Ptr|64|32|16|8) ...) => (SUB ...)
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(Sub(64|32)F ...) => (FSUB(D|S) ...)
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(Mul64 ...) => (MUL ...)
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(Mul64uhilo ...) => (LoweredMuluhilo ...)
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@ -25,11 +15,9 @@
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(Mul32 ...) => (MULW ...)
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(Mul16 x y) => (MULW (SignExt16to32 x) (SignExt16to32 y))
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(Mul8 x y) => (MULW (SignExt8to32 x) (SignExt8to32 y))
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(Mul32F ...) => (FMULS ...)
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(Mul64F ...) => (FMULD ...)
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(Mul(64|32)F ...) => (FMUL(D|S) ...)
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(Div32F ...) => (FDIVS ...)
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(Div64F ...) => (FDIVD ...)
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(Div(64|32)F ...) => (FDIV(D|S) ...)
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(Div64 x y [false]) => (DIV x y)
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(Div64u ...) => (DIVU ...)
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@ -65,32 +53,15 @@
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(Mod8 x y) => (REMW (SignExt8to32 x) (SignExt8to32 y))
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(Mod8u x y) => (REMUW (ZeroExt8to32 x) (ZeroExt8to32 y))
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(And64 ...) => (AND ...)
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(And32 ...) => (AND ...)
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(And16 ...) => (AND ...)
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(And8 ...) => (AND ...)
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(And(64|32|16|8) ...) => (AND ...)
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(Or(64|32|16|8) ...) => (OR ...)
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(Xor(64|32|16|8) ...) => (XOR ...)
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(Or64 ...) => (OR ...)
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(Or32 ...) => (OR ...)
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(Or16 ...) => (OR ...)
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(Or8 ...) => (OR ...)
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(Neg(64|32|16|8) ...) => (NEG ...)
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(Neg(64|32)F ...) => (FNEG(D|S) ...)
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(Xor64 ...) => (XOR ...)
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(Xor32 ...) => (XOR ...)
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(Xor16 ...) => (XOR ...)
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(Xor8 ...) => (XOR ...)
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(Com(64|32|16|8) ...) => (NOT ...)
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(Neg64 ...) => (NEG ...)
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(Neg32 ...) => (NEG ...)
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(Neg16 ...) => (NEG ...)
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(Neg8 ...) => (NEG ...)
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(Neg32F ...) => (FNEGS ...)
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(Neg64F ...) => (FNEGD ...)
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(Com64 ...) => (NOT ...)
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(Com32 ...) => (NOT ...)
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(Com16 ...) => (NOT ...)
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(Com8 ...) => (NOT ...)
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(Sqrt ...) => (FSQRTD ...)
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(Sqrt32 ...) => (FSQRTS ...)
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@ -132,8 +103,7 @@
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(CvtBoolToUint8 ...) => (Copy ...)
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(Round32F ...) => (Copy ...)
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(Round64F ...) => (Copy ...)
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(Round(64|32)F ...) => (Copy ...)
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(Slicemask <t> x) => (SRAI [63] (NEG <t> x))
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@ -250,36 +220,26 @@
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(Less32U x y) => (SLTU (ZeroExt32to64 x) (ZeroExt32to64 y))
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(Less16U x y) => (SLTU (ZeroExt16to64 x) (ZeroExt16to64 y))
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(Less8U x y) => (SLTU (ZeroExt8to64 x) (ZeroExt8to64 y))
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(Less64F ...) => (FLTD ...)
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(Less32F ...) => (FLTS ...)
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(Less(64|32)F ...) => (FLT(D|S) ...)
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// Convert x <= y to !(y > x).
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(Leq64 x y) => (Not (Less64 y x))
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(Leq32 x y) => (Not (Less32 y x))
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(Leq16 x y) => (Not (Less16 y x))
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(Leq8 x y) => (Not (Less8 y x))
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(Leq64U x y) => (Not (Less64U y x))
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(Leq32U x y) => (Not (Less32U y x))
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(Leq16U x y) => (Not (Less16U y x))
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(Leq8U x y) => (Not (Less8U y x))
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(Leq64F ...) => (FLED ...)
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(Leq32F ...) => (FLES ...)
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(Leq(64|32|16|8) x y) => (Not (Less(64|32|16|8) y x))
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(Leq(64|32|16|8)U x y) => (Not (Less(64|32|16|8)U y x))
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(Leq(64|32)F ...) => (FLE(D|S) ...)
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(EqPtr x y) => (SEQZ (SUB <typ.Uintptr> x y))
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(Eq64 x y) => (SEQZ (SUB <x.Type> x y))
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(Eq32 x y) => (SEQZ (SUB <x.Type> (ZeroExt32to64 x) (ZeroExt32to64 y)))
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(Eq16 x y) => (SEQZ (SUB <x.Type> (ZeroExt16to64 x) (ZeroExt16to64 y)))
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(Eq8 x y) => (SEQZ (SUB <x.Type> (ZeroExt8to64 x) (ZeroExt8to64 y)))
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(Eq64F ...) => (FEQD ...)
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(Eq32F ...) => (FEQS ...)
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(Eq(64|32)F ...) => (FEQ(D|S) ...)
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(NeqPtr x y) => (SNEZ (SUB <typ.Uintptr> x y))
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(Neq64 x y) => (SNEZ (SUB <x.Type> x y))
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(Neq32 x y) => (SNEZ (SUB <x.Type> (ZeroExt32to64 x) (ZeroExt32to64 y)))
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(Neq16 x y) => (SNEZ (SUB <x.Type> (ZeroExt16to64 x) (ZeroExt16to64 y)))
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(Neq8 x y) => (SNEZ (SUB <x.Type> (ZeroExt8to64 x) (ZeroExt8to64 y)))
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(Neq64F ...) => (FNED ...)
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(Neq32F ...) => (FNES ...)
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(Neq(64|32)F ...) => (FNE(D|S) ...)
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// Loads
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(Load <t> ptr mem) && t.IsBoolean() => (MOVBUload ptr mem)
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@ -537,10 +497,7 @@
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(OffPtr [off] ptr) && is32Bit(off) => (ADDI [off] ptr)
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(OffPtr [off] ptr) => (ADD (MOVDconst [off]) ptr)
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(Const8 [val]) => (MOVDconst [int64(val)])
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(Const16 [val]) => (MOVDconst [int64(val)])
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(Const32 [val]) => (MOVDconst [int64(val)])
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(Const64 [val]) => (MOVDconst [int64(val)])
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(Const(64|32|16|8) [val]) => (MOVDconst [int64(val)])
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(Const32F [val]) => (FMVSX (MOVDconst [int64(math.Float32bits(val))]))
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(Const64F [val]) => (FMVDX (MOVDconst [int64(math.Float64bits(val))]))
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(ConstNil) => (MOVDconst [0])
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@ -557,18 +514,9 @@
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(TailCall ...) => (CALLtail ...)
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// Atomic Intrinsics
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(AtomicLoad8 ...) => (LoweredAtomicLoad8 ...)
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(AtomicLoad32 ...) => (LoweredAtomicLoad32 ...)
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(AtomicLoad64 ...) => (LoweredAtomicLoad64 ...)
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(AtomicLoadPtr ...) => (LoweredAtomicLoad64 ...)
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(AtomicStore8 ...) => (LoweredAtomicStore8 ...)
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(AtomicStore32 ...) => (LoweredAtomicStore32 ...)
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(AtomicStore64 ...) => (LoweredAtomicStore64 ...)
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(AtomicStorePtrNoWB ...) => (LoweredAtomicStore64 ...)
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(AtomicAdd32 ...) => (LoweredAtomicAdd32 ...)
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(AtomicAdd64 ...) => (LoweredAtomicAdd64 ...)
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(AtomicLoad(Ptr|64|32|8) ...) => (LoweredAtomicLoad(64|64|32|8) ...)
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(AtomicStore(PtrNoWB|64|32|8) ...) => (LoweredAtomicStore(64|64|32|8) ...)
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(AtomicAdd(64|32) ...) => (LoweredAtomicAdd(64|32) ...)
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// AtomicAnd8(ptr,val) => LoweredAtomicAnd32(ptr&^3, ^((uint8(val) ^ 0xff) << ((ptr & 3) * 8)))
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(AtomicAnd8 ptr val mem) =>
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@ -581,8 +529,7 @@
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(AtomicCompareAndSwap32 ptr old new mem) => (LoweredAtomicCas32 ptr (SignExt32to64 old) new mem)
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(AtomicCompareAndSwap64 ...) => (LoweredAtomicCas64 ...)
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(AtomicExchange32 ...) => (LoweredAtomicExchange32 ...)
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(AtomicExchange64 ...) => (LoweredAtomicExchange64 ...)
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(AtomicExchange(64|32) ...) => (LoweredAtomicExchange(64|32) ...)
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// AtomicOr8(ptr,val) => LoweredAtomicOr32(ptr&^3, uint32(val)<<((ptr&3)*8))
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(AtomicOr8 ptr val mem) =>
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