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cmd/compile: use | in the most repetitive mips rules

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For now, limited to the most repetitive rules that are also short and
simple, so that we can have a substantial conciseness win without
compromising rules readability.

Ran rulegen, no change in the actual compiler code (as expected).

Change-Id: Ib0bfbbc181fcec095fb78ac752addd1eee0c3575
Reviewed-on: https://go-review.googlesource.com/95796
Reviewed-by: Giovanni Bajo <rasky@develer.com>
This commit is contained in:
Alberto Donizetti 2018-02-21 11:54:55 +01:00
parent af11038428
commit 3553262248
1 changed files with 25 additions and 64 deletions
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89
src/cmd/compile/internal/ssa/gen/MIPS.rules
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@ -2,37 +2,24 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
(AddPtr x y) -> (ADD x y)
(Add32 x y) -> (ADD x y)
(Add16 x y) -> (ADD x y)
(Add8 x y) -> (ADD x y)
(Add32F x y) -> (ADDF x y)
(Add64F x y) -> (ADDD x y)
(Add(Ptr|32|16|8) x y) -> (ADD x y)
(Add(32|64)F x y) -> (ADD(F|D) x y)
(Select0 (Add32carry <t> x y)) -> (ADD <t.FieldType(0)> x y)
(Select1 (Add32carry <t> x y)) -> (SGTU <typ.Bool> x (ADD <t.FieldType(0)> x y))
(Add32withcarry <t> x y c) -> (ADD c (ADD <t> x y))
(SubPtr x y) -> (SUB x y)
(Sub32 x y) -> (SUB x y)
(Sub16 x y) -> (SUB x y)
(Sub8 x y) -> (SUB x y)
(Sub32F x y) -> (SUBF x y)
(Sub64F x y) -> (SUBD x y)
(Sub(Ptr|32|16|8) x y) -> (SUB x y)
(Sub(32|64)F x y) -> (SUB(F|D) x y)
(Select0 (Sub32carry <t> x y)) -> (SUB <t.FieldType(0)> x y)
(Select1 (Sub32carry <t> x y)) -> (SGTU <typ.Bool> (SUB <t.FieldType(0)> x y) x)
(Sub32withcarry <t> x y c) -> (SUB (SUB <t> x y) c)
(Mul32 x y) -> (MUL x y)
(Mul16 x y) -> (MUL x y)
(Mul8 x y) -> (MUL x y)
(Mul32F x y) -> (MULF x y)
(Mul64F x y) -> (MULD x y)
(Hmul32 x y) -> (Select0 (MULT x y))
(Hmul32u x y) -> (Select0 (MULTU x y))
(Mul(32|16|8) x y) -> (MUL x y)
(Mul(32|64)F x y) -> (MUL(F|D) x y)
(Hmul(32|32u) x y) -> (Select0 (MUL(T|TU) x y))
(Mul32uhilo x y) -> (MULTU x y)
(Div32 x y) -> (Select1 (DIV x y))
@ -41,8 +28,7 @@
(Div16u x y) -> (Select1 (DIVU (ZeroExt16to32 x) (ZeroExt16to32 y)))
(Div8 x y) -> (Select1 (DIV (SignExt8to32 x) (SignExt8to32 y)))
(Div8u x y) -> (Select1 (DIVU (ZeroExt8to32 x) (ZeroExt8to32 y)))
(Div32F x y) -> (DIVF x y)
(Div64F x y) -> (DIVD x y)
(Div(32|64)F x y) -> (DIV(F|D) x y)
(Mod32 x y) -> (Select0 (DIV x y))
(Mod32u x y) -> (Select0 (DIVU x y))
@ -54,17 +40,9 @@
// (x + y) / 2 with x>=y -> (x - y) / 2 + y
(Avg32u <t> x y) -> (ADD (SRLconst <t> (SUB <t> x y) [1]) y)
(And32 x y) -> (AND x y)
(And16 x y) -> (AND x y)
(And8 x y) -> (AND x y)
(Or32 x y) -> (OR x y)
(Or16 x y) -> (OR x y)
(Or8 x y) -> (OR x y)
(Xor32 x y) -> (XOR x y)
(Xor16 x y) -> (XOR x y)
(Xor8 x y) -> (XOR x y)
(And(32|16|8) x y) -> (AND x y)
(Or(32|16|8) x y) -> (OR x y)
(Xor(32|16|8) x y) -> (XOR x y)
// constant shifts
// generic opt rewrites all constant shifts to shift by Const64
@ -131,15 +109,10 @@
(Rsh8x8 x y) -> (SRA (SignExt16to32 x) ( CMOVZ <typ.UInt32> (ZeroExt8to32 y) (MOVWconst [-1]) (SGTUconst [32] (ZeroExt8to32 y))))
// unary ops
(Neg32 x) -> (NEG x)
(Neg16 x) -> (NEG x)
(Neg8 x) -> (NEG x)
(Neg32F x) -> (NEGF x)
(Neg64F x) -> (NEGD x)
(Neg(32|16|8) x) -> (NEG x)
(Neg(32|64)F x) -> (NEG(F|D) x)
(Com32 x) -> (NORconst [0] x)
(Com16 x) -> (NORconst [0] x)
(Com8 x) -> (NORconst [0] x)
(Com(32|16|8) x) -> (NORconst [0] x)
(Sqrt x) -> (SQRTD x)
@ -158,11 +131,8 @@
(Not x) -> (XORconst [1] x)
// constants
(Const32 [val]) -> (MOVWconst [val])
(Const16 [val]) -> (MOVWconst [val])
(Const8 [val]) -> (MOVWconst [val])
(Const32F [val]) -> (MOVFconst [val])
(Const64F [val]) -> (MOVDconst [val])
(Const(32|16|8) [val]) -> (MOVWconst [val])
(Const(32|64)F [val]) -> (MOV(F|D)const [val])
(ConstNil) -> (MOVWconst [0])
(ConstBool [b]) -> (MOVWconst [b])
@ -186,36 +156,30 @@
(Slicemask <t> x) -> (SRAconst (NEG <t> x) [31])
// float <-> int conversion
(Cvt32to32F x) -> (MOVWF x)
(Cvt32to64F x) -> (MOVWD x)
(Cvt32Fto32 x) -> (TRUNCFW x)
(Cvt64Fto32 x) -> (TRUNCDW x)
(Cvt32to(32|64)F x) -> (MOVW(F|D) x)
(Cvt(32|64)Fto32 x) -> (TRUNC(F|D)W x)
(Cvt32Fto64F x) -> (MOVFD x)
(Cvt64Fto32F x) -> (MOVDF x)
(Round32F x) -> x
(Round64F x) -> x
(Round(32|64)F x) -> x
// comparisons
(Eq8 x y) -> (SGTUconst [1] (XOR (ZeroExt8to32 x) (ZeroExt8to32 y)))
(Eq16 x y) -> (SGTUconst [1] (XOR (ZeroExt16to32 x) (ZeroExt16to32 y)))
(Eq32 x y) -> (SGTUconst [1] (XOR x y))
(EqPtr x y) -> (SGTUconst [1] (XOR x y))
(Eq32F x y) -> (FPFlagTrue (CMPEQF x y))
(Eq64F x y) -> (FPFlagTrue (CMPEQD x y))
(Eq(32|64)F x y) -> (FPFlagTrue (CMPEQ(F|D) x y))
(Neq8 x y) -> (SGTU (XOR (ZeroExt8to32 x) (ZeroExt8to32 y)) (MOVWconst [0]))
(Neq16 x y) -> (SGTU (XOR (ZeroExt16to32 x) (ZeroExt16to32 y)) (MOVWconst [0]))
(Neq32 x y) -> (SGTU (XOR x y) (MOVWconst [0]))
(NeqPtr x y) -> (SGTU (XOR x y) (MOVWconst [0]))
(Neq32F x y) -> (FPFlagFalse (CMPEQF x y))
(Neq64F x y) -> (FPFlagFalse (CMPEQD x y))
(Neq(32|64)F x y) -> (FPFlagFalse (CMPEQ(F|D) x y))
(Less8 x y) -> (SGT (SignExt8to32 y) (SignExt8to32 x))
(Less16 x y) -> (SGT (SignExt16to32 y) (SignExt16to32 x))
(Less32 x y) -> (SGT y x)
(Less32F x y) -> (FPFlagTrue (CMPGTF y x)) // reverse operands to work around NaN
(Less64F x y) -> (FPFlagTrue (CMPGTD y x)) // reverse operands to work around NaN
(Less(32|64)F x y) -> (FPFlagTrue (CMPGT(F|D) y x)) // reverse operands to work around NaN
(Less8U x y) -> (SGTU (ZeroExt8to32 y) (ZeroExt8to32 x))
(Less16U x y) -> (SGTU (ZeroExt16to32 y) (ZeroExt16to32 x))
@ -224,8 +188,7 @@
(Leq8 x y) -> (XORconst [1] (SGT (SignExt8to32 x) (SignExt8to32 y)))
(Leq16 x y) -> (XORconst [1] (SGT (SignExt16to32 x) (SignExt16to32 y)))
(Leq32 x y) -> (XORconst [1] (SGT x y))
(Leq32F x y) -> (FPFlagTrue (CMPGEF y x)) // reverse operands to work around NaN
(Leq64F x y) -> (FPFlagTrue (CMPGED y x)) // reverse operands to work around NaN
(Leq(32|64)F x y) -> (FPFlagTrue (CMPGE(F|D) y x)) // reverse operands to work around NaN
(Leq8U x y) -> (XORconst [1] (SGTU (ZeroExt8to32 x) (ZeroExt8to32 y)))
(Leq16U x y) -> (XORconst [1] (SGTU (ZeroExt16to32 x) (ZeroExt16to32 y)))
@ -234,8 +197,7 @@
(Greater8 x y) -> (SGT (SignExt8to32 x) (SignExt8to32 y))
(Greater16 x y) -> (SGT (SignExt16to32 x) (SignExt16to32 y))
(Greater32 x y) -> (SGT x y)
(Greater32F x y) -> (FPFlagTrue (CMPGTF x y))
(Greater64F x y) -> (FPFlagTrue (CMPGTD x y))
(Greater(32|64)F x y) -> (FPFlagTrue (CMPGT(F|D) x y))
(Greater8U x y) -> (SGTU (ZeroExt8to32 x) (ZeroExt8to32 y))
(Greater16U x y) -> (SGTU (ZeroExt16to32 x) (ZeroExt16to32 y))
@ -244,8 +206,7 @@
(Geq8 x y) -> (XORconst [1] (SGT (SignExt8to32 y) (SignExt8to32 x)))
(Geq16 x y) -> (XORconst [1] (SGT (SignExt16to32 y) (SignExt16to32 x)))
(Geq32 x y) -> (XORconst [1] (SGT y x))
(Geq32F x y) -> (FPFlagTrue (CMPGEF x y))
(Geq64F x y) -> (FPFlagTrue (CMPGED x y))
(Geq(32|64)F x y) -> (FPFlagTrue (CMPGE(F|D) x y))
(Geq8U x y) -> (XORconst [1] (SGTU (ZeroExt8to32 y) (ZeroExt8to32 x)))
(Geq16U x y) -> (XORconst [1] (SGTU (ZeroExt16to32 y) (ZeroExt16to32 x)))