| // Copyright 2016 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| (Add(Ptr|32|16|8) x y) -> (ADD x y) |
| (Add(32|64)F x y) -> (ADD(F|D) x y) |
| (Add32carry x y) -> (ADDS x y) |
| (Add32withcarry x y c) -> (ADC x y c) |
| |
| (Sub(Ptr|32|16|8) x y) -> (SUB x y) |
| (Sub(32|64)F x y) -> (SUB(F|D) x y) |
| (Sub32carry x y) -> (SUBS x y) |
| (Sub32withcarry x y c) -> (SBC x y c) |
| |
| (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) -> (HMU(L|LU) x y) |
| (Mul32uhilo x y) -> (MULLU x y) |
| |
| (Div32 x y) -> |
| (SUB (XOR <typ.UInt32> // negate the result if one operand is negative |
| (Select0 <typ.UInt32> (CALLudiv |
| (SUB <typ.UInt32> (XOR x <typ.UInt32> (Signmask x)) (Signmask x)) // negate x if negative |
| (SUB <typ.UInt32> (XOR y <typ.UInt32> (Signmask y)) (Signmask y)))) // negate y if negative |
| (Signmask (XOR <typ.UInt32> x y))) (Signmask (XOR <typ.UInt32> x y))) |
| (Div32u x y) -> (Select0 <typ.UInt32> (CALLudiv x y)) |
| (Div16 x y) -> (Div32 (SignExt16to32 x) (SignExt16to32 y)) |
| (Div16u x y) -> (Div32u (ZeroExt16to32 x) (ZeroExt16to32 y)) |
| (Div8 x y) -> (Div32 (SignExt8to32 x) (SignExt8to32 y)) |
| (Div8u x y) -> (Div32u (ZeroExt8to32 x) (ZeroExt8to32 y)) |
| (Div(32|64)F x y) -> (DIV(F|D) x y) |
| |
| (Mod32 x y) -> |
| (SUB (XOR <typ.UInt32> // negate the result if x is negative |
| (Select1 <typ.UInt32> (CALLudiv |
| (SUB <typ.UInt32> (XOR <typ.UInt32> x (Signmask x)) (Signmask x)) // negate x if negative |
| (SUB <typ.UInt32> (XOR <typ.UInt32> y (Signmask y)) (Signmask y)))) // negate y if negative |
| (Signmask x)) (Signmask x)) |
| (Mod32u x y) -> (Select1 <typ.UInt32> (CALLudiv x y)) |
| (Mod16 x y) -> (Mod32 (SignExt16to32 x) (SignExt16to32 y)) |
| (Mod16u x y) -> (Mod32u (ZeroExt16to32 x) (ZeroExt16to32 y)) |
| (Mod8 x y) -> (Mod32 (SignExt8to32 x) (SignExt8to32 y)) |
| (Mod8u x y) -> (Mod32u (ZeroExt8to32 x) (ZeroExt8to32 y)) |
| |
| // (x + y) / 2 with x>=y -> (x - y) / 2 + y |
| (Avg32u <t> x y) -> (ADD (SRLconst <t> (SUB <t> x y) [1]) 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) |
| |
| // unary ops |
| (Neg(32|16|8) x) -> (RSBconst [0] x) |
| (Neg(32|64)F x) -> (NEG(F|D) x) |
| |
| (Com(32|16|8) x) -> (MVN x) |
| |
| (Sqrt x) -> (SQRTD x) |
| |
| // TODO: optimize this for ARMv5 and ARMv6 |
| (Ctz32NonZero x) -> (Ctz32 x) |
| |
| // count trailing zero for ARMv5 and ARMv6 |
| // 32 - CLZ(x&-x - 1) |
| (Ctz32 <t> x) && objabi.GOARM<=6 -> (RSBconst [32] (CLZ <t> (SUBconst <t> (AND <t> x (RSBconst <t> [0] x)) [1]))) |
| |
| // count trailing zero for ARMv7 |
| (Ctz32 <t> x) && objabi.GOARM==7 -> (CLZ <t> (RBIT <t> x)) |
| |
| // bit length |
| (BitLen32 <t> x) -> (RSBconst [32] (CLZ <t> x)) |
| |
| // byte swap for ARMv5 |
| // let (a, b, c, d) be the bytes of x from high to low |
| // t1 = x right rotate 16 bits -- (c, d, a, b ) |
| // t2 = x ^ t1 -- (a^c, b^d, a^c, b^d) |
| // t3 = t2 &^ 0xff0000 -- (a^c, 0, a^c, b^d) |
| // t4 = t3 >> 8 -- (0, a^c, 0, a^c) |
| // t5 = x right rotate 8 bits -- (d, a, b, c ) |
| // result = t4 ^ t5 -- (d, c, b, a ) |
| // using shifted ops this can be done in 4 instructions. |
| (Bswap32 <t> x) && objabi.GOARM==5 -> |
| (XOR <t> |
| (SRLconst <t> (BICconst <t> (XOR <t> x (SRRconst <t> [16] x)) [0xff0000]) [8]) |
| (SRRconst <t> x [8])) |
| |
| // byte swap for ARMv6 and above |
| (Bswap32 x) && objabi.GOARM>=6 -> (REV x) |
| |
| // boolean ops -- booleans are represented with 0=false, 1=true |
| (AndB x y) -> (AND x y) |
| (OrB x y) -> (OR x y) |
| (EqB x y) -> (XORconst [1] (XOR <typ.Bool> x y)) |
| (NeqB x y) -> (XOR x y) |
| (Not x) -> (XORconst [1] x) |
| |
| // shifts |
| // hardware instruction uses only the low byte of the shift |
| // we compare to 256 to ensure Go semantics for large shifts |
| (Lsh32x32 x y) -> (CMOVWHSconst (SLL <x.Type> x y) (CMPconst [256] y) [0]) |
| (Lsh32x16 x y) -> (CMOVWHSconst (SLL <x.Type> x (ZeroExt16to32 y)) (CMPconst [256] (ZeroExt16to32 y)) [0]) |
| (Lsh32x8 x y) -> (SLL x (ZeroExt8to32 y)) |
| |
| (Lsh16x32 x y) -> (CMOVWHSconst (SLL <x.Type> x y) (CMPconst [256] y) [0]) |
| (Lsh16x16 x y) -> (CMOVWHSconst (SLL <x.Type> x (ZeroExt16to32 y)) (CMPconst [256] (ZeroExt16to32 y)) [0]) |
| (Lsh16x8 x y) -> (SLL x (ZeroExt8to32 y)) |
| |
| (Lsh8x32 x y) -> (CMOVWHSconst (SLL <x.Type> x y) (CMPconst [256] y) [0]) |
| (Lsh8x16 x y) -> (CMOVWHSconst (SLL <x.Type> x (ZeroExt16to32 y)) (CMPconst [256] (ZeroExt16to32 y)) [0]) |
| (Lsh8x8 x y) -> (SLL x (ZeroExt8to32 y)) |
| |
| (Rsh32Ux32 x y) -> (CMOVWHSconst (SRL <x.Type> x y) (CMPconst [256] y) [0]) |
| (Rsh32Ux16 x y) -> (CMOVWHSconst (SRL <x.Type> x (ZeroExt16to32 y)) (CMPconst [256] (ZeroExt16to32 y)) [0]) |
| (Rsh32Ux8 x y) -> (SRL x (ZeroExt8to32 y)) |
| |
| (Rsh16Ux32 x y) -> (CMOVWHSconst (SRL <x.Type> (ZeroExt16to32 x) y) (CMPconst [256] y) [0]) |
| (Rsh16Ux16 x y) -> (CMOVWHSconst (SRL <x.Type> (ZeroExt16to32 x) (ZeroExt16to32 y)) (CMPconst [256] (ZeroExt16to32 y)) [0]) |
| (Rsh16Ux8 x y) -> (SRL (ZeroExt16to32 x) (ZeroExt8to32 y)) |
| |
| (Rsh8Ux32 x y) -> (CMOVWHSconst (SRL <x.Type> (ZeroExt8to32 x) y) (CMPconst [256] y) [0]) |
| (Rsh8Ux16 x y) -> (CMOVWHSconst (SRL <x.Type> (ZeroExt8to32 x) (ZeroExt16to32 y)) (CMPconst [256] (ZeroExt16to32 y)) [0]) |
| (Rsh8Ux8 x y) -> (SRL (ZeroExt8to32 x) (ZeroExt8to32 y)) |
| |
| (Rsh32x32 x y) -> (SRAcond x y (CMPconst [256] y)) |
| (Rsh32x16 x y) -> (SRAcond x (ZeroExt16to32 y) (CMPconst [256] (ZeroExt16to32 y))) |
| (Rsh32x8 x y) -> (SRA x (ZeroExt8to32 y)) |
| |
| (Rsh16x32 x y) -> (SRAcond (SignExt16to32 x) y (CMPconst [256] y)) |
| (Rsh16x16 x y) -> (SRAcond (SignExt16to32 x) (ZeroExt16to32 y) (CMPconst [256] (ZeroExt16to32 y))) |
| (Rsh16x8 x y) -> (SRA (SignExt16to32 x) (ZeroExt8to32 y)) |
| |
| (Rsh8x32 x y) -> (SRAcond (SignExt8to32 x) y (CMPconst [256] y)) |
| (Rsh8x16 x y) -> (SRAcond (SignExt8to32 x) (ZeroExt16to32 y) (CMPconst [256] (ZeroExt16to32 y))) |
| (Rsh8x8 x y) -> (SRA (SignExt8to32 x) (ZeroExt8to32 y)) |
| |
| // constant shifts |
| // generic opt rewrites all constant shifts to shift by Const64 |
| (Lsh32x64 x (Const64 [c])) && uint64(c) < 32 -> (SLLconst x [c]) |
| (Rsh32x64 x (Const64 [c])) && uint64(c) < 32 -> (SRAconst x [c]) |
| (Rsh32Ux64 x (Const64 [c])) && uint64(c) < 32 -> (SRLconst x [c]) |
| (Lsh16x64 x (Const64 [c])) && uint64(c) < 16 -> (SLLconst x [c]) |
| (Rsh16x64 x (Const64 [c])) && uint64(c) < 16 -> (SRAconst (SLLconst <typ.UInt32> x [16]) [c+16]) |
| (Rsh16Ux64 x (Const64 [c])) && uint64(c) < 16 -> (SRLconst (SLLconst <typ.UInt32> x [16]) [c+16]) |
| (Lsh8x64 x (Const64 [c])) && uint64(c) < 8 -> (SLLconst x [c]) |
| (Rsh8x64 x (Const64 [c])) && uint64(c) < 8 -> (SRAconst (SLLconst <typ.UInt32> x [24]) [c+24]) |
| (Rsh8Ux64 x (Const64 [c])) && uint64(c) < 8 -> (SRLconst (SLLconst <typ.UInt32> x [24]) [c+24]) |
| |
| // large constant shifts |
| (Lsh32x64 _ (Const64 [c])) && uint64(c) >= 32 -> (Const32 [0]) |
| (Rsh32Ux64 _ (Const64 [c])) && uint64(c) >= 32 -> (Const32 [0]) |
| (Lsh16x64 _ (Const64 [c])) && uint64(c) >= 16 -> (Const16 [0]) |
| (Rsh16Ux64 _ (Const64 [c])) && uint64(c) >= 16 -> (Const16 [0]) |
| (Lsh8x64 _ (Const64 [c])) && uint64(c) >= 8 -> (Const8 [0]) |
| (Rsh8Ux64 _ (Const64 [c])) && uint64(c) >= 8 -> (Const8 [0]) |
| |
| // large constant signed right shift, we leave the sign bit |
| (Rsh32x64 x (Const64 [c])) && uint64(c) >= 32 -> (SRAconst x [31]) |
| (Rsh16x64 x (Const64 [c])) && uint64(c) >= 16 -> (SRAconst (SLLconst <typ.UInt32> x [16]) [31]) |
| (Rsh8x64 x (Const64 [c])) && uint64(c) >= 8 -> (SRAconst (SLLconst <typ.UInt32> x [24]) [31]) |
| |
| // constants |
| (Const8 [val]) -> (MOVWconst [val]) |
| (Const16 [val]) -> (MOVWconst [val]) |
| (Const32 [val]) -> (MOVWconst [val]) |
| (Const32F [val]) -> (MOVFconst [val]) |
| (Const64F [val]) -> (MOVDconst [val]) |
| (ConstNil) -> (MOVWconst [0]) |
| (ConstBool [b]) -> (MOVWconst [b]) |
| |
| // truncations |
| // Because we ignore high parts of registers, truncates are just copies. |
| (Trunc16to8 x) -> x |
| (Trunc32to8 x) -> x |
| (Trunc32to16 x) -> x |
| |
| // Zero-/Sign-extensions |
| (ZeroExt8to16 x) -> (MOVBUreg x) |
| (ZeroExt8to32 x) -> (MOVBUreg x) |
| (ZeroExt16to32 x) -> (MOVHUreg x) |
| |
| (SignExt8to16 x) -> (MOVBreg x) |
| (SignExt8to32 x) -> (MOVBreg x) |
| (SignExt16to32 x) -> (MOVHreg x) |
| |
| (Signmask x) -> (SRAconst x [31]) |
| (Zeromask x) -> (SRAconst (RSBshiftRL <typ.Int32> x x [1]) [31]) // sign bit of uint32(x)>>1 - x |
| (Slicemask <t> x) -> (SRAconst (RSBconst <t> [0] x) [31]) |
| |
| // float <-> int conversion |
| (Cvt32to32F x) -> (MOVWF x) |
| (Cvt32to64F x) -> (MOVWD x) |
| (Cvt32Uto32F x) -> (MOVWUF x) |
| (Cvt32Uto64F x) -> (MOVWUD x) |
| (Cvt32Fto32 x) -> (MOVFW x) |
| (Cvt64Fto32 x) -> (MOVDW x) |
| (Cvt32Fto32U x) -> (MOVFWU x) |
| (Cvt64Fto32U x) -> (MOVDWU x) |
| (Cvt32Fto64F x) -> (MOVFD x) |
| (Cvt64Fto32F x) -> (MOVDF x) |
| |
| (Round(32|64)F x) -> x |
| |
| // comparisons |
| (Eq8 x y) -> (Equal (CMP (ZeroExt8to32 x) (ZeroExt8to32 y))) |
| (Eq16 x y) -> (Equal (CMP (ZeroExt16to32 x) (ZeroExt16to32 y))) |
| (Eq32 x y) -> (Equal (CMP x y)) |
| (EqPtr x y) -> (Equal (CMP x y)) |
| (Eq(32|64)F x y) -> (Equal (CMP(F|D) x y)) |
| |
| (Neq8 x y) -> (NotEqual (CMP (ZeroExt8to32 x) (ZeroExt8to32 y))) |
| (Neq16 x y) -> (NotEqual (CMP (ZeroExt16to32 x) (ZeroExt16to32 y))) |
| (Neq32 x y) -> (NotEqual (CMP x y)) |
| (NeqPtr x y) -> (NotEqual (CMP x y)) |
| (Neq(32|64)F x y) -> (NotEqual (CMP(F|D) x y)) |
| |
| (Less8 x y) -> (LessThan (CMP (SignExt8to32 x) (SignExt8to32 y))) |
| (Less16 x y) -> (LessThan (CMP (SignExt16to32 x) (SignExt16to32 y))) |
| (Less32 x y) -> (LessThan (CMP x y)) |
| (Less(32|64)F x y) -> (GreaterThan (CMP(F|D) y x)) // reverse operands to work around NaN |
| |
| (Less8U x y) -> (LessThanU (CMP (ZeroExt8to32 x) (ZeroExt8to32 y))) |
| (Less16U x y) -> (LessThanU (CMP (ZeroExt16to32 x) (ZeroExt16to32 y))) |
| (Less32U x y) -> (LessThanU (CMP x y)) |
| |
| (Leq8 x y) -> (LessEqual (CMP (SignExt8to32 x) (SignExt8to32 y))) |
| (Leq16 x y) -> (LessEqual (CMP (SignExt16to32 x) (SignExt16to32 y))) |
| (Leq32 x y) -> (LessEqual (CMP x y)) |
| (Leq(32|64)F x y) -> (GreaterEqual (CMP(F|D) y x)) // reverse operands to work around NaN |
| |
| (Leq8U x y) -> (LessEqualU (CMP (ZeroExt8to32 x) (ZeroExt8to32 y))) |
| (Leq16U x y) -> (LessEqualU (CMP (ZeroExt16to32 x) (ZeroExt16to32 y))) |
| (Leq32U x y) -> (LessEqualU (CMP x y)) |
| |
| (Greater8 x y) -> (GreaterThan (CMP (SignExt8to32 x) (SignExt8to32 y))) |
| (Greater16 x y) -> (GreaterThan (CMP (SignExt16to32 x) (SignExt16to32 y))) |
| (Greater32 x y) -> (GreaterThan (CMP x y)) |
| (Greater(32|64)F x y) -> (GreaterThan (CMP(F|D) x y)) |
| |
| (Greater8U x y) -> (GreaterThanU (CMP (ZeroExt8to32 x) (ZeroExt8to32 y))) |
| (Greater16U x y) -> (GreaterThanU (CMP (ZeroExt16to32 x) (ZeroExt16to32 y))) |
| (Greater32U x y) -> (GreaterThanU (CMP x y)) |
| |
| (Geq8 x y) -> (GreaterEqual (CMP (SignExt8to32 x) (SignExt8to32 y))) |
| (Geq16 x y) -> (GreaterEqual (CMP (SignExt16to32 x) (SignExt16to32 y))) |
| (Geq32 x y) -> (GreaterEqual (CMP x y)) |
| (Geq(32|64)F x y) -> (GreaterEqual (CMP(F|D) x y)) |
| |
| (Geq8U x y) -> (GreaterEqualU (CMP (ZeroExt8to32 x) (ZeroExt8to32 y))) |
| (Geq16U x y) -> (GreaterEqualU (CMP (ZeroExt16to32 x) (ZeroExt16to32 y))) |
| (Geq32U x y) -> (GreaterEqualU (CMP x y)) |
| |
| (OffPtr [off] ptr:(SP)) -> (MOVWaddr [off] ptr) |
| (OffPtr [off] ptr) -> (ADDconst [off] ptr) |
| |
| (Addr {sym} base) -> (MOVWaddr {sym} base) |
| (LocalAddr {sym} base _) -> (MOVWaddr {sym} base) |
| |
| // loads |
| (Load <t> ptr mem) && t.IsBoolean() -> (MOVBUload ptr mem) |
| (Load <t> ptr mem) && (is8BitInt(t) && isSigned(t)) -> (MOVBload ptr mem) |
| (Load <t> ptr mem) && (is8BitInt(t) && !isSigned(t)) -> (MOVBUload ptr mem) |
| (Load <t> ptr mem) && (is16BitInt(t) && isSigned(t)) -> (MOVHload ptr mem) |
| (Load <t> ptr mem) && (is16BitInt(t) && !isSigned(t)) -> (MOVHUload ptr mem) |
| (Load <t> ptr mem) && (is32BitInt(t) || isPtr(t)) -> (MOVWload ptr mem) |
| (Load <t> ptr mem) && is32BitFloat(t) -> (MOVFload ptr mem) |
| (Load <t> ptr mem) && is64BitFloat(t) -> (MOVDload ptr mem) |
| |
| // stores |
| (Store {t} ptr val mem) && t.(*types.Type).Size() == 1 -> (MOVBstore ptr val mem) |
| (Store {t} ptr val mem) && t.(*types.Type).Size() == 2 -> (MOVHstore ptr val mem) |
| (Store {t} ptr val mem) && t.(*types.Type).Size() == 4 && !is32BitFloat(val.Type) -> (MOVWstore ptr val mem) |
| (Store {t} ptr val mem) && t.(*types.Type).Size() == 4 && is32BitFloat(val.Type) -> (MOVFstore ptr val mem) |
| (Store {t} ptr val mem) && t.(*types.Type).Size() == 8 && is64BitFloat(val.Type) -> (MOVDstore ptr val mem) |
| |
| // zero instructions |
| (Zero [0] _ mem) -> mem |
| (Zero [1] ptr mem) -> (MOVBstore ptr (MOVWconst [0]) mem) |
| (Zero [2] {t} ptr mem) && t.(*types.Type).Alignment()%2 == 0 -> |
| (MOVHstore ptr (MOVWconst [0]) mem) |
| (Zero [2] ptr mem) -> |
| (MOVBstore [1] ptr (MOVWconst [0]) |
| (MOVBstore [0] ptr (MOVWconst [0]) mem)) |
| (Zero [4] {t} ptr mem) && t.(*types.Type).Alignment()%4 == 0 -> |
| (MOVWstore ptr (MOVWconst [0]) mem) |
| (Zero [4] {t} ptr mem) && t.(*types.Type).Alignment()%2 == 0 -> |
| (MOVHstore [2] ptr (MOVWconst [0]) |
| (MOVHstore [0] ptr (MOVWconst [0]) mem)) |
| (Zero [4] ptr mem) -> |
| (MOVBstore [3] ptr (MOVWconst [0]) |
| (MOVBstore [2] ptr (MOVWconst [0]) |
| (MOVBstore [1] ptr (MOVWconst [0]) |
| (MOVBstore [0] ptr (MOVWconst [0]) mem)))) |
| |
| (Zero [3] ptr mem) -> |
| (MOVBstore [2] ptr (MOVWconst [0]) |
| (MOVBstore [1] ptr (MOVWconst [0]) |
| (MOVBstore [0] ptr (MOVWconst [0]) mem))) |
| |
| // Medium zeroing uses a duff device |
| // 4 and 128 are magic constants, see runtime/mkduff.go |
| (Zero [s] {t} ptr mem) |
| && s%4 == 0 && s > 4 && s <= 512 |
| && t.(*types.Type).Alignment()%4 == 0 && !config.noDuffDevice -> |
| (DUFFZERO [4 * (128 - s/4)] ptr (MOVWconst [0]) mem) |
| |
| // Large zeroing uses a loop |
| (Zero [s] {t} ptr mem) |
| && (s > 512 || config.noDuffDevice) || t.(*types.Type).Alignment()%4 != 0 -> |
| (LoweredZero [t.(*types.Type).Alignment()] |
| ptr |
| (ADDconst <ptr.Type> ptr [s-moveSize(t.(*types.Type).Alignment(), config)]) |
| (MOVWconst [0]) |
| mem) |
| |
| // moves |
| (Move [0] _ _ mem) -> mem |
| (Move [1] dst src mem) -> (MOVBstore dst (MOVBUload src mem) mem) |
| (Move [2] {t} dst src mem) && t.(*types.Type).Alignment()%2 == 0 -> |
| (MOVHstore dst (MOVHUload src mem) mem) |
| (Move [2] dst src mem) -> |
| (MOVBstore [1] dst (MOVBUload [1] src mem) |
| (MOVBstore dst (MOVBUload src mem) mem)) |
| (Move [4] {t} dst src mem) && t.(*types.Type).Alignment()%4 == 0 -> |
| (MOVWstore dst (MOVWload src mem) mem) |
| (Move [4] {t} dst src mem) && t.(*types.Type).Alignment()%2 == 0 -> |
| (MOVHstore [2] dst (MOVHUload [2] src mem) |
| (MOVHstore dst (MOVHUload src mem) mem)) |
| (Move [4] dst src mem) -> |
| (MOVBstore [3] dst (MOVBUload [3] src mem) |
| (MOVBstore [2] dst (MOVBUload [2] src mem) |
| (MOVBstore [1] dst (MOVBUload [1] src mem) |
| (MOVBstore dst (MOVBUload src mem) mem)))) |
| |
| (Move [3] dst src mem) -> |
| (MOVBstore [2] dst (MOVBUload [2] src mem) |
| (MOVBstore [1] dst (MOVBUload [1] src mem) |
| (MOVBstore dst (MOVBUload src mem) mem))) |
| |
| // Medium move uses a duff device |
| // 8 and 128 are magic constants, see runtime/mkduff.go |
| (Move [s] {t} dst src mem) |
| && s%4 == 0 && s > 4 && s <= 512 |
| && t.(*types.Type).Alignment()%4 == 0 && !config.noDuffDevice -> |
| (DUFFCOPY [8 * (128 - s/4)] dst src mem) |
| |
| // Large move uses a loop |
| (Move [s] {t} dst src mem) |
| && (s > 512 || config.noDuffDevice) || t.(*types.Type).Alignment()%4 != 0 -> |
| (LoweredMove [t.(*types.Type).Alignment()] |
| dst |
| src |
| (ADDconst <src.Type> src [s-moveSize(t.(*types.Type).Alignment(), config)]) |
| mem) |
| |
| // calls |
| (StaticCall [argwid] {target} mem) -> (CALLstatic [argwid] {target} mem) |
| (ClosureCall [argwid] entry closure mem) -> (CALLclosure [argwid] entry closure mem) |
| (InterCall [argwid] entry mem) -> (CALLinter [argwid] entry mem) |
| |
| // checks |
| (NilCheck ptr mem) -> (LoweredNilCheck ptr mem) |
| (IsNonNil ptr) -> (NotEqual (CMPconst [0] ptr)) |
| (IsInBounds idx len) -> (LessThanU (CMP idx len)) |
| (IsSliceInBounds idx len) -> (LessEqualU (CMP idx len)) |
| |
| // pseudo-ops |
| (GetClosurePtr) -> (LoweredGetClosurePtr) |
| (GetCallerSP) -> (LoweredGetCallerSP) |
| (GetCallerPC) -> (LoweredGetCallerPC) |
| |
| // Absorb pseudo-ops into blocks. |
| (If (Equal cc) yes no) -> (EQ cc yes no) |
| (If (NotEqual cc) yes no) -> (NE cc yes no) |
| (If (LessThan cc) yes no) -> (LT cc yes no) |
| (If (LessThanU cc) yes no) -> (ULT cc yes no) |
| (If (LessEqual cc) yes no) -> (LE cc yes no) |
| (If (LessEqualU cc) yes no) -> (ULE cc yes no) |
| (If (GreaterThan cc) yes no) -> (GT cc yes no) |
| (If (GreaterThanU cc) yes no) -> (UGT cc yes no) |
| (If (GreaterEqual cc) yes no) -> (GE cc yes no) |
| (If (GreaterEqualU cc) yes no) -> (UGE cc yes no) |
| |
| (If cond yes no) -> (NE (CMPconst [0] cond) yes no) |
| |
| // Absorb boolean tests into block |
| (NE (CMPconst [0] (Equal cc)) yes no) -> (EQ cc yes no) |
| (NE (CMPconst [0] (NotEqual cc)) yes no) -> (NE cc yes no) |
| (NE (CMPconst [0] (LessThan cc)) yes no) -> (LT cc yes no) |
| (NE (CMPconst [0] (LessThanU cc)) yes no) -> (ULT cc yes no) |
| (NE (CMPconst [0] (LessEqual cc)) yes no) -> (LE cc yes no) |
| (NE (CMPconst [0] (LessEqualU cc)) yes no) -> (ULE cc yes no) |
| (NE (CMPconst [0] (GreaterThan cc)) yes no) -> (GT cc yes no) |
| (NE (CMPconst [0] (GreaterThanU cc)) yes no) -> (UGT cc yes no) |
| (NE (CMPconst [0] (GreaterEqual cc)) yes no) -> (GE cc yes no) |
| (NE (CMPconst [0] (GreaterEqualU cc)) yes no) -> (UGE cc yes no) |
| |
| // Write barrier. |
| (WB {fn} destptr srcptr mem) -> (LoweredWB {fn} destptr srcptr mem) |
| |
| // Optimizations |
| |
| // fold offset into address |
| (ADDconst [off1] (MOVWaddr [off2] {sym} ptr)) -> (MOVWaddr [off1+off2] {sym} ptr) |
| (SUBconst [off1] (MOVWaddr [off2] {sym} ptr)) -> (MOVWaddr [off2-off1] {sym} ptr) |
| |
| // fold address into load/store |
| (MOVBload [off1] {sym} (ADDconst [off2] ptr) mem) -> (MOVBload [off1+off2] {sym} ptr mem) |
| (MOVBload [off1] {sym} (SUBconst [off2] ptr) mem) -> (MOVBload [off1-off2] {sym} ptr mem) |
| (MOVBUload [off1] {sym} (ADDconst [off2] ptr) mem) -> (MOVBUload [off1+off2] {sym} ptr mem) |
| (MOVBUload [off1] {sym} (SUBconst [off2] ptr) mem) -> (MOVBUload [off1-off2] {sym} ptr mem) |
| (MOVHload [off1] {sym} (ADDconst [off2] ptr) mem) -> (MOVHload [off1+off2] {sym} ptr mem) |
| (MOVHload [off1] {sym} (SUBconst [off2] ptr) mem) -> (MOVHload [off1-off2] {sym} ptr mem) |
| (MOVHUload [off1] {sym} (ADDconst [off2] ptr) mem) -> (MOVHUload [off1+off2] {sym} ptr mem) |
| (MOVHUload [off1] {sym} (SUBconst [off2] ptr) mem) -> (MOVHUload [off1-off2] {sym} ptr mem) |
| (MOVWload [off1] {sym} (ADDconst [off2] ptr) mem) -> (MOVWload [off1+off2] {sym} ptr mem) |
| (MOVWload [off1] {sym} (SUBconst [off2] ptr) mem) -> (MOVWload [off1-off2] {sym} ptr mem) |
| (MOVFload [off1] {sym} (ADDconst [off2] ptr) mem) -> (MOVFload [off1+off2] {sym} ptr mem) |
| (MOVFload [off1] {sym} (SUBconst [off2] ptr) mem) -> (MOVFload [off1-off2] {sym} ptr mem) |
| (MOVDload [off1] {sym} (ADDconst [off2] ptr) mem) -> (MOVDload [off1+off2] {sym} ptr mem) |
| (MOVDload [off1] {sym} (SUBconst [off2] ptr) mem) -> (MOVDload [off1-off2] {sym} ptr mem) |
| |
| (MOVBstore [off1] {sym} (ADDconst [off2] ptr) val mem) -> (MOVBstore [off1+off2] {sym} ptr val mem) |
| (MOVBstore [off1] {sym} (SUBconst [off2] ptr) val mem) -> (MOVBstore [off1-off2] {sym} ptr val mem) |
| (MOVHstore [off1] {sym} (ADDconst [off2] ptr) val mem) -> (MOVHstore [off1+off2] {sym} ptr val mem) |
| (MOVHstore [off1] {sym} (SUBconst [off2] ptr) val mem) -> (MOVHstore [off1-off2] {sym} ptr val mem) |
| (MOVWstore [off1] {sym} (ADDconst [off2] ptr) val mem) -> (MOVWstore [off1+off2] {sym} ptr val mem) |
| (MOVWstore [off1] {sym} (SUBconst [off2] ptr) val mem) -> (MOVWstore [off1-off2] {sym} ptr val mem) |
| (MOVFstore [off1] {sym} (ADDconst [off2] ptr) val mem) -> (MOVFstore [off1+off2] {sym} ptr val mem) |
| (MOVFstore [off1] {sym} (SUBconst [off2] ptr) val mem) -> (MOVFstore [off1-off2] {sym} ptr val mem) |
| (MOVDstore [off1] {sym} (ADDconst [off2] ptr) val mem) -> (MOVDstore [off1+off2] {sym} ptr val mem) |
| (MOVDstore [off1] {sym} (SUBconst [off2] ptr) val mem) -> (MOVDstore [off1-off2] {sym} ptr val mem) |
| |
| (MOVBload [off1] {sym1} (MOVWaddr [off2] {sym2} ptr) mem) && canMergeSym(sym1,sym2) -> |
| (MOVBload [off1+off2] {mergeSym(sym1,sym2)} ptr mem) |
| (MOVBUload [off1] {sym1} (MOVWaddr [off2] {sym2} ptr) mem) && canMergeSym(sym1,sym2) -> |
| (MOVBUload [off1+off2] {mergeSym(sym1,sym2)} ptr mem) |
| (MOVHload [off1] {sym1} (MOVWaddr [off2] {sym2} ptr) mem) && canMergeSym(sym1,sym2) -> |
| (MOVHload [off1+off2] {mergeSym(sym1,sym2)} ptr mem) |
| (MOVHUload [off1] {sym1} (MOVWaddr [off2] {sym2} ptr) mem) && canMergeSym(sym1,sym2) -> |
| (MOVHUload [off1+off2] {mergeSym(sym1,sym2)} ptr mem) |
| (MOVWload [off1] {sym1} (MOVWaddr [off2] {sym2} ptr) mem) && canMergeSym(sym1,sym2) -> |
| (MOVWload [off1+off2] {mergeSym(sym1,sym2)} ptr mem) |
| (MOVFload [off1] {sym1} (MOVWaddr [off2] {sym2} ptr) mem) && canMergeSym(sym1,sym2) -> |
| (MOVFload [off1+off2] {mergeSym(sym1,sym2)} ptr mem) |
| (MOVDload [off1] {sym1} (MOVWaddr [off2] {sym2} ptr) mem) && canMergeSym(sym1,sym2) -> |
| (MOVDload [off1+off2] {mergeSym(sym1,sym2)} ptr mem) |
| |
| (MOVBstore [off1] {sym1} (MOVWaddr [off2] {sym2} ptr) val mem) && canMergeSym(sym1,sym2) -> |
| (MOVBstore [off1+off2] {mergeSym(sym1,sym2)} ptr val mem) |
| (MOVHstore [off1] {sym1} (MOVWaddr [off2] {sym2} ptr) val mem) && canMergeSym(sym1,sym2) -> |
| (MOVHstore [off1+off2] {mergeSym(sym1,sym2)} ptr val mem) |
| (MOVWstore [off1] {sym1} (MOVWaddr [off2] {sym2} ptr) val mem) && canMergeSym(sym1,sym2) -> |
| (MOVWstore [off1+off2] {mergeSym(sym1,sym2)} ptr val mem) |
| (MOVFstore [off1] {sym1} (MOVWaddr [off2] {sym2} ptr) val mem) && canMergeSym(sym1,sym2) -> |
| (MOVFstore [off1+off2] {mergeSym(sym1,sym2)} ptr val mem) |
| (MOVDstore [off1] {sym1} (MOVWaddr [off2] {sym2} ptr) val mem) && canMergeSym(sym1,sym2) -> |
| (MOVDstore [off1+off2] {mergeSym(sym1,sym2)} ptr val mem) |
| |
| // replace load from same location as preceding store with zero/sign extension (or copy in case of full width) |
| (MOVBload [off] {sym} ptr (MOVBstore [off2] {sym2} ptr2 x _)) && sym == sym2 && off == off2 && isSamePtr(ptr, ptr2) -> (MOVBreg x) |
| (MOVBUload [off] {sym} ptr (MOVBstore [off2] {sym2} ptr2 x _)) && sym == sym2 && off == off2 && isSamePtr(ptr, ptr2) -> (MOVBUreg x) |
| (MOVHload [off] {sym} ptr (MOVHstore [off2] {sym2} ptr2 x _)) && sym == sym2 && off == off2 && isSamePtr(ptr, ptr2) -> (MOVHreg x) |
| (MOVHUload [off] {sym} ptr (MOVHstore [off2] {sym2} ptr2 x _)) && sym == sym2 && off == off2 && isSamePtr(ptr, ptr2) -> (MOVHUreg x) |
| (MOVWload [off] {sym} ptr (MOVWstore [off2] {sym2} ptr2 x _)) && sym == sym2 && off == off2 && isSamePtr(ptr, ptr2) -> x |
| |
| (MOVFload [off] {sym} ptr (MOVFstore [off2] {sym2} ptr2 x _)) && sym == sym2 && off == off2 && isSamePtr(ptr, ptr2) -> x |
| (MOVDload [off] {sym} ptr (MOVDstore [off2] {sym2} ptr2 x _)) && sym == sym2 && off == off2 && isSamePtr(ptr, ptr2) -> x |
| |
| (MOVWloadidx ptr idx (MOVWstoreidx ptr2 idx x _)) && isSamePtr(ptr, ptr2) -> x |
| (MOVWloadshiftLL ptr idx [c] (MOVWstoreshiftLL ptr2 idx [d] x _)) && c==d && isSamePtr(ptr, ptr2) -> x |
| (MOVWloadshiftRL ptr idx [c] (MOVWstoreshiftRL ptr2 idx [d] x _)) && c==d && isSamePtr(ptr, ptr2) -> x |
| (MOVWloadshiftRA ptr idx [c] (MOVWstoreshiftRA ptr2 idx [d] x _)) && c==d && isSamePtr(ptr, ptr2) -> x |
| (MOVBUloadidx ptr idx (MOVBstoreidx ptr2 idx x _)) && isSamePtr(ptr, ptr2) -> (MOVBUreg x) |
| (MOVBloadidx ptr idx (MOVBstoreidx ptr2 idx x _)) && isSamePtr(ptr, ptr2) -> (MOVBreg x) |
| (MOVHUloadidx ptr idx (MOVHstoreidx ptr2 idx x _)) && isSamePtr(ptr, ptr2) -> (MOVHUreg x) |
| (MOVHloadidx ptr idx (MOVHstoreidx ptr2 idx x _)) && isSamePtr(ptr, ptr2) -> (MOVHreg x) |
| |
| // fold constant into arithmatic ops |
| (ADD x (MOVWconst [c])) -> (ADDconst [c] x) |
| (SUB (MOVWconst [c]) x) -> (RSBconst [c] x) |
| (SUB x (MOVWconst [c])) -> (SUBconst [c] x) |
| (RSB (MOVWconst [c]) x) -> (SUBconst [c] x) |
| (RSB x (MOVWconst [c])) -> (RSBconst [c] x) |
| |
| (ADDS x (MOVWconst [c])) -> (ADDSconst [c] x) |
| (SUBS x (MOVWconst [c])) -> (SUBSconst [c] x) |
| |
| (ADC (MOVWconst [c]) x flags) -> (ADCconst [c] x flags) |
| (ADC x (MOVWconst [c]) flags) -> (ADCconst [c] x flags) |
| (SBC (MOVWconst [c]) x flags) -> (RSCconst [c] x flags) |
| (SBC x (MOVWconst [c]) flags) -> (SBCconst [c] x flags) |
| |
| (AND x (MOVWconst [c])) -> (ANDconst [c] x) |
| (OR x (MOVWconst [c])) -> (ORconst [c] x) |
| (XOR x (MOVWconst [c])) -> (XORconst [c] x) |
| (BIC x (MOVWconst [c])) -> (BICconst [c] x) |
| |
| (SLL x (MOVWconst [c])) -> (SLLconst x [c&31]) // Note: I don't think we ever generate bad constant shifts (i.e. c>=32) |
| (SRL x (MOVWconst [c])) -> (SRLconst x [c&31]) |
| (SRA x (MOVWconst [c])) -> (SRAconst x [c&31]) |
| |
| (CMP x (MOVWconst [c])) -> (CMPconst [c] x) |
| (CMP (MOVWconst [c]) x) -> (InvertFlags (CMPconst [c] x)) |
| (CMN x (MOVWconst [c])) -> (CMNconst [c] x) |
| (TST x (MOVWconst [c])) -> (TSTconst [c] x) |
| (TEQ x (MOVWconst [c])) -> (TEQconst [c] x) |
| |
| // don't extend after proper load |
| // MOVWreg instruction is not emitted if src and dst registers are same, but it ensures the type. |
| (MOVBreg x:(MOVBload _ _)) -> (MOVWreg x) |
| (MOVBUreg x:(MOVBUload _ _)) -> (MOVWreg x) |
| (MOVHreg x:(MOVBload _ _)) -> (MOVWreg x) |
| (MOVHreg x:(MOVBUload _ _)) -> (MOVWreg x) |
| (MOVHreg x:(MOVHload _ _)) -> (MOVWreg x) |
| (MOVHUreg x:(MOVBUload _ _)) -> (MOVWreg x) |
| (MOVHUreg x:(MOVHUload _ _)) -> (MOVWreg x) |
| |
| // fold extensions and ANDs together |
| (MOVBUreg (ANDconst [c] x)) -> (ANDconst [c&0xff] x) |
| (MOVHUreg (ANDconst [c] x)) -> (ANDconst [c&0xffff] x) |
| (MOVBreg (ANDconst [c] x)) && c & 0x80 == 0 -> (ANDconst [c&0x7f] x) |
| (MOVHreg (ANDconst [c] x)) && c & 0x8000 == 0 -> (ANDconst [c&0x7fff] x) |
| |
| // fold double extensions |
| (MOVBreg x:(MOVBreg _)) -> (MOVWreg x) |
| (MOVBUreg x:(MOVBUreg _)) -> (MOVWreg x) |
| (MOVHreg x:(MOVBreg _)) -> (MOVWreg x) |
| (MOVHreg x:(MOVBUreg _)) -> (MOVWreg x) |
| (MOVHreg x:(MOVHreg _)) -> (MOVWreg x) |
| (MOVHUreg x:(MOVBUreg _)) -> (MOVWreg x) |
| (MOVHUreg x:(MOVHUreg _)) -> (MOVWreg x) |
| |
| // don't extend before store |
| (MOVBstore [off] {sym} ptr (MOVBreg x) mem) -> (MOVBstore [off] {sym} ptr x mem) |
| (MOVBstore [off] {sym} ptr (MOVBUreg x) mem) -> (MOVBstore [off] {sym} ptr x mem) |
| (MOVBstore [off] {sym} ptr (MOVHreg x) mem) -> (MOVBstore [off] {sym} ptr x mem) |
| (MOVBstore [off] {sym} ptr (MOVHUreg x) mem) -> (MOVBstore [off] {sym} ptr x mem) |
| (MOVHstore [off] {sym} ptr (MOVHreg x) mem) -> (MOVHstore [off] {sym} ptr x mem) |
| (MOVHstore [off] {sym} ptr (MOVHUreg x) mem) -> (MOVHstore [off] {sym} ptr x mem) |
| |
| // if a register move has only 1 use, just use the same register without emitting instruction |
| // MOVWnop doesn't emit instruction, only for ensuring the type. |
| (MOVWreg x) && x.Uses == 1 -> (MOVWnop x) |
| |
| // mul by constant |
| (MUL x (MOVWconst [c])) && int32(c) == -1 -> (RSBconst [0] x) |
| (MUL _ (MOVWconst [0])) -> (MOVWconst [0]) |
| (MUL x (MOVWconst [1])) -> x |
| (MUL x (MOVWconst [c])) && isPowerOfTwo(c) -> (SLLconst [log2(c)] x) |
| (MUL x (MOVWconst [c])) && isPowerOfTwo(c-1) && int32(c) >= 3 -> (ADDshiftLL x x [log2(c-1)]) |
| (MUL x (MOVWconst [c])) && isPowerOfTwo(c+1) && int32(c) >= 7 -> (RSBshiftLL x x [log2(c+1)]) |
| (MUL x (MOVWconst [c])) && c%3 == 0 && isPowerOfTwo(c/3) && is32Bit(c) -> (SLLconst [log2(c/3)] (ADDshiftLL <x.Type> x x [1])) |
| (MUL x (MOVWconst [c])) && c%5 == 0 && isPowerOfTwo(c/5) && is32Bit(c) -> (SLLconst [log2(c/5)] (ADDshiftLL <x.Type> x x [2])) |
| (MUL x (MOVWconst [c])) && c%7 == 0 && isPowerOfTwo(c/7) && is32Bit(c) -> (SLLconst [log2(c/7)] (RSBshiftLL <x.Type> x x [3])) |
| (MUL x (MOVWconst [c])) && c%9 == 0 && isPowerOfTwo(c/9) && is32Bit(c) -> (SLLconst [log2(c/9)] (ADDshiftLL <x.Type> x x [3])) |
| |
| (MULA x (MOVWconst [c]) a) && int32(c) == -1 -> (SUB a x) |
| (MULA _ (MOVWconst [0]) a) -> a |
| (MULA x (MOVWconst [1]) a) -> (ADD x a) |
| (MULA x (MOVWconst [c]) a) && isPowerOfTwo(c) -> (ADD (SLLconst <x.Type> [log2(c)] x) a) |
| (MULA x (MOVWconst [c]) a) && isPowerOfTwo(c-1) && int32(c) >= 3 -> (ADD (ADDshiftLL <x.Type> x x [log2(c-1)]) a) |
| (MULA x (MOVWconst [c]) a) && isPowerOfTwo(c+1) && int32(c) >= 7 -> (ADD (RSBshiftLL <x.Type> x x [log2(c+1)]) a) |
| (MULA x (MOVWconst [c]) a) && c%3 == 0 && isPowerOfTwo(c/3) && is32Bit(c) -> (ADD (SLLconst <x.Type> [log2(c/3)] (ADDshiftLL <x.Type> x x [1])) a) |
| (MULA x (MOVWconst [c]) a) && c%5 == 0 && isPowerOfTwo(c/5) && is32Bit(c) -> (ADD (SLLconst <x.Type> [log2(c/5)] (ADDshiftLL <x.Type> x x [2])) a) |
| (MULA x (MOVWconst [c]) a) && c%7 == 0 && isPowerOfTwo(c/7) && is32Bit(c) -> (ADD (SLLconst <x.Type> [log2(c/7)] (RSBshiftLL <x.Type> x x [3])) a) |
| (MULA x (MOVWconst [c]) a) && c%9 == 0 && isPowerOfTwo(c/9) && is32Bit(c) -> (ADD (SLLconst <x.Type> [log2(c/9)] (ADDshiftLL <x.Type> x x [3])) a) |
| |
| (MULA (MOVWconst [c]) x a) && int32(c) == -1 -> (SUB a x) |
| (MULA (MOVWconst [0]) _ a) -> a |
| (MULA (MOVWconst [1]) x a) -> (ADD x a) |
| (MULA (MOVWconst [c]) x a) && isPowerOfTwo(c) -> (ADD (SLLconst <x.Type> [log2(c)] x) a) |
| (MULA (MOVWconst [c]) x a) && isPowerOfTwo(c-1) && int32(c) >= 3 -> (ADD (ADDshiftLL <x.Type> x x [log2(c-1)]) a) |
| (MULA (MOVWconst [c]) x a) && isPowerOfTwo(c+1) && int32(c) >= 7 -> (ADD (RSBshiftLL <x.Type> x x [log2(c+1)]) a) |
| (MULA (MOVWconst [c]) x a) && c%3 == 0 && isPowerOfTwo(c/3) && is32Bit(c) -> (ADD (SLLconst <x.Type> [log2(c/3)] (ADDshiftLL <x.Type> x x [1])) a) |
| (MULA (MOVWconst [c]) x a) && c%5 == 0 && isPowerOfTwo(c/5) && is32Bit(c) -> (ADD (SLLconst <x.Type> [log2(c/5)] (ADDshiftLL <x.Type> x x [2])) a) |
| (MULA (MOVWconst [c]) x a) && c%7 == 0 && isPowerOfTwo(c/7) && is32Bit(c) -> (ADD (SLLconst <x.Type> [log2(c/7)] (RSBshiftLL <x.Type> x x [3])) a) |
| (MULA (MOVWconst [c]) x a) && c%9 == 0 && isPowerOfTwo(c/9) && is32Bit(c) -> (ADD (SLLconst <x.Type> [log2(c/9)] (ADDshiftLL <x.Type> x x [3])) a) |
| |
| (MULS x (MOVWconst [c]) a) && int32(c) == -1 -> (ADD a x) |
| (MULS _ (MOVWconst [0]) a) -> a |
| (MULS x (MOVWconst [1]) a) -> (RSB x a) |
| (MULS x (MOVWconst [c]) a) && isPowerOfTwo(c) -> (RSB (SLLconst <x.Type> [log2(c)] x) a) |
| (MULS x (MOVWconst [c]) a) && isPowerOfTwo(c-1) && int32(c) >= 3 -> (RSB (ADDshiftLL <x.Type> x x [log2(c-1)]) a) |
| (MULS x (MOVWconst [c]) a) && isPowerOfTwo(c+1) && int32(c) >= 7 -> (RSB (RSBshiftLL <x.Type> x x [log2(c+1)]) a) |
| (MULS x (MOVWconst [c]) a) && c%3 == 0 && isPowerOfTwo(c/3) && is32Bit(c) -> (RSB (SLLconst <x.Type> [log2(c/3)] (ADDshiftLL <x.Type> x x [1])) a) |
| (MULS x (MOVWconst [c]) a) && c%5 == 0 && isPowerOfTwo(c/5) && is32Bit(c) -> (RSB (SLLconst <x.Type> [log2(c/5)] (ADDshiftLL <x.Type> x x [2])) a) |
| (MULS x (MOVWconst [c]) a) && c%7 == 0 && isPowerOfTwo(c/7) && is32Bit(c) -> (RSB (SLLconst <x.Type> [log2(c/7)] (RSBshiftLL <x.Type> x x [3])) a) |
| (MULS x (MOVWconst [c]) a) && c%9 == 0 && isPowerOfTwo(c/9) && is32Bit(c) -> (RSB (SLLconst <x.Type> [log2(c/9)] (ADDshiftLL <x.Type> x x [3])) a) |
| |
| (MULS (MOVWconst [c]) x a) && int32(c) == -1 -> (ADD a x) |
| (MULS (MOVWconst [0]) _ a) -> a |
| (MULS (MOVWconst [1]) x a) -> (RSB x a) |
| (MULS (MOVWconst [c]) x a) && isPowerOfTwo(c) -> (RSB (SLLconst <x.Type> [log2(c)] x) a) |
| (MULS (MOVWconst [c]) x a) && isPowerOfTwo(c-1) && int32(c) >= 3 -> (RSB (ADDshiftLL <x.Type> x x [log2(c-1)]) a) |
| (MULS (MOVWconst [c]) x a) && isPowerOfTwo(c+1) && int32(c) >= 7 -> (RSB (RSBshiftLL <x.Type> x x [log2(c+1)]) a) |
| (MULS (MOVWconst [c]) x a) && c%3 == 0 && isPowerOfTwo(c/3) && is32Bit(c) -> (RSB (SLLconst <x.Type> [log2(c/3)] (ADDshiftLL <x.Type> x x [1])) a) |
| (MULS (MOVWconst [c]) x a) && c%5 == 0 && isPowerOfTwo(c/5) && is32Bit(c) -> (RSB (SLLconst <x.Type> [log2(c/5)] (ADDshiftLL <x.Type> x x [2])) a) |
| (MULS (MOVWconst [c]) x a) && c%7 == 0 && isPowerOfTwo(c/7) && is32Bit(c) -> (RSB (SLLconst <x.Type> [log2(c/7)] (RSBshiftLL <x.Type> x x [3])) a) |
| (MULS (MOVWconst [c]) x a) && c%9 == 0 && isPowerOfTwo(c/9) && is32Bit(c) -> (RSB (SLLconst <x.Type> [log2(c/9)] (ADDshiftLL <x.Type> x x [3])) a) |
| |
| // div by constant |
| (Select0 (CALLudiv x (MOVWconst [1]))) -> x |
| (Select1 (CALLudiv _ (MOVWconst [1]))) -> (MOVWconst [0]) |
| (Select0 (CALLudiv x (MOVWconst [c]))) && isPowerOfTwo(c) -> (SRLconst [log2(c)] x) |
| (Select1 (CALLudiv x (MOVWconst [c]))) && isPowerOfTwo(c) -> (ANDconst [c-1] x) |
| |
| // constant comparisons |
| (CMPconst (MOVWconst [x]) [y]) && int32(x)==int32(y) -> (FlagEQ) |
| (CMPconst (MOVWconst [x]) [y]) && int32(x)<int32(y) && uint32(x)<uint32(y) -> (FlagLT_ULT) |
| (CMPconst (MOVWconst [x]) [y]) && int32(x)<int32(y) && uint32(x)>uint32(y) -> (FlagLT_UGT) |
| (CMPconst (MOVWconst [x]) [y]) && int32(x)>int32(y) && uint32(x)<uint32(y) -> (FlagGT_ULT) |
| (CMPconst (MOVWconst [x]) [y]) && int32(x)>int32(y) && uint32(x)>uint32(y) -> (FlagGT_UGT) |
| (CMNconst (MOVWconst [x]) [y]) && int32(x)==int32(-y) -> (FlagEQ) |
| (CMNconst (MOVWconst [x]) [y]) && int32(x)<int32(-y) && uint32(x)<uint32(-y) -> (FlagLT_ULT) |
| (CMNconst (MOVWconst [x]) [y]) && int32(x)<int32(-y) && uint32(x)>uint32(-y) -> (FlagLT_UGT) |
| (CMNconst (MOVWconst [x]) [y]) && int32(x)>int32(-y) && uint32(x)<uint32(-y) -> (FlagGT_ULT) |
| (CMNconst (MOVWconst [x]) [y]) && int32(x)>int32(-y) && uint32(x)>uint32(-y) -> (FlagGT_UGT) |
| (TSTconst (MOVWconst [x]) [y]) && int32(x&y)==0 -> (FlagEQ) |
| (TSTconst (MOVWconst [x]) [y]) && int32(x&y)<0 -> (FlagLT_UGT) |
| (TSTconst (MOVWconst [x]) [y]) && int32(x&y)>0 -> (FlagGT_UGT) |
| (TEQconst (MOVWconst [x]) [y]) && int32(x^y)==0 -> (FlagEQ) |
| (TEQconst (MOVWconst [x]) [y]) && int32(x^y)<0 -> (FlagLT_UGT) |
| (TEQconst (MOVWconst [x]) [y]) && int32(x^y)>0 -> (FlagGT_UGT) |
| |
| // other known comparisons |
| (CMPconst (MOVBUreg _) [c]) && 0xff < c -> (FlagLT_ULT) |
| (CMPconst (MOVHUreg _) [c]) && 0xffff < c -> (FlagLT_ULT) |
| (CMPconst (ANDconst _ [m]) [n]) && 0 <= int32(m) && int32(m) < int32(n) -> (FlagLT_ULT) |
| (CMPconst (SRLconst _ [c]) [n]) && 0 <= n && 0 < c && c <= 32 && (1<<uint32(32-c)) <= uint32(n) -> (FlagLT_ULT) |
| |
| // absorb flag constants into branches |
| (EQ (FlagEQ) yes no) -> (First nil yes no) |
| (EQ (FlagLT_ULT) yes no) -> (First nil no yes) |
| (EQ (FlagLT_UGT) yes no) -> (First nil no yes) |
| (EQ (FlagGT_ULT) yes no) -> (First nil no yes) |
| (EQ (FlagGT_UGT) yes no) -> (First nil no yes) |
| |
| (NE (FlagEQ) yes no) -> (First nil no yes) |
| (NE (FlagLT_ULT) yes no) -> (First nil yes no) |
| (NE (FlagLT_UGT) yes no) -> (First nil yes no) |
| (NE (FlagGT_ULT) yes no) -> (First nil yes no) |
| (NE (FlagGT_UGT) yes no) -> (First nil yes no) |
| |
| (LT (FlagEQ) yes no) -> (First nil no yes) |
| (LT (FlagLT_ULT) yes no) -> (First nil yes no) |
| (LT (FlagLT_UGT) yes no) -> (First nil yes no) |
| (LT (FlagGT_ULT) yes no) -> (First nil no yes) |
| (LT (FlagGT_UGT) yes no) -> (First nil no yes) |
| |
| (LE (FlagEQ) yes no) -> (First nil yes no) |
| (LE (FlagLT_ULT) yes no) -> (First nil yes no) |
| (LE (FlagLT_UGT) yes no) -> (First nil yes no) |
| (LE (FlagGT_ULT) yes no) -> (First nil no yes) |
| (LE (FlagGT_UGT) yes no) -> (First nil no yes) |
| |
| (GT (FlagEQ) yes no) -> (First nil no yes) |
| (GT (FlagLT_ULT) yes no) -> (First nil no yes) |
| (GT (FlagLT_UGT) yes no) -> (First nil no yes) |
| (GT (FlagGT_ULT) yes no) -> (First nil yes no) |
| (GT (FlagGT_UGT) yes no) -> (First nil yes no) |
| |
| (GE (FlagEQ) yes no) -> (First nil yes no) |
| (GE (FlagLT_ULT) yes no) -> (First nil no yes) |
| (GE (FlagLT_UGT) yes no) -> (First nil no yes) |
| (GE (FlagGT_ULT) yes no) -> (First nil yes no) |
| (GE (FlagGT_UGT) yes no) -> (First nil yes no) |
| |
| (ULT (FlagEQ) yes no) -> (First nil no yes) |
| (ULT (FlagLT_ULT) yes no) -> (First nil yes no) |
| (ULT (FlagLT_UGT) yes no) -> (First nil no yes) |
| (ULT (FlagGT_ULT) yes no) -> (First nil yes no) |
| (ULT (FlagGT_UGT) yes no) -> (First nil no yes) |
| |
| (ULE (FlagEQ) yes no) -> (First nil yes no) |
| (ULE (FlagLT_ULT) yes no) -> (First nil yes no) |
| (ULE (FlagLT_UGT) yes no) -> (First nil no yes) |
| (ULE (FlagGT_ULT) yes no) -> (First nil yes no) |
| (ULE (FlagGT_UGT) yes no) -> (First nil no yes) |
| |
| (UGT (FlagEQ) yes no) -> (First nil no yes) |
| (UGT (FlagLT_ULT) yes no) -> (First nil no yes) |
| (UGT (FlagLT_UGT) yes no) -> (First nil yes no) |
| (UGT (FlagGT_ULT) yes no) -> (First nil no yes) |
| (UGT (FlagGT_UGT) yes no) -> (First nil yes no) |
| |
| (UGE (FlagEQ) yes no) -> (First nil yes no) |
| (UGE (FlagLT_ULT) yes no) -> (First nil no yes) |
| (UGE (FlagLT_UGT) yes no) -> (First nil yes no) |
| (UGE (FlagGT_ULT) yes no) -> (First nil no yes) |
| (UGE (FlagGT_UGT) yes no) -> (First nil yes no) |
| |
| // absorb InvertFlags into branches |
| (LT (InvertFlags cmp) yes no) -> (GT cmp yes no) |
| (GT (InvertFlags cmp) yes no) -> (LT cmp yes no) |
| (LE (InvertFlags cmp) yes no) -> (GE cmp yes no) |
| (GE (InvertFlags cmp) yes no) -> (LE cmp yes no) |
| (ULT (InvertFlags cmp) yes no) -> (UGT cmp yes no) |
| (UGT (InvertFlags cmp) yes no) -> (ULT cmp yes no) |
| (ULE (InvertFlags cmp) yes no) -> (UGE cmp yes no) |
| (UGE (InvertFlags cmp) yes no) -> (ULE cmp yes no) |
| (EQ (InvertFlags cmp) yes no) -> (EQ cmp yes no) |
| (NE (InvertFlags cmp) yes no) -> (NE cmp yes no) |
| |
| // absorb flag constants into boolean values |
| (Equal (FlagEQ)) -> (MOVWconst [1]) |
| (Equal (FlagLT_ULT)) -> (MOVWconst [0]) |
| (Equal (FlagLT_UGT)) -> (MOVWconst [0]) |
| (Equal (FlagGT_ULT)) -> (MOVWconst [0]) |
| (Equal (FlagGT_UGT)) -> (MOVWconst [0]) |
| |
| (NotEqual (FlagEQ)) -> (MOVWconst [0]) |
| (NotEqual (FlagLT_ULT)) -> (MOVWconst [1]) |
| (NotEqual (FlagLT_UGT)) -> (MOVWconst [1]) |
| (NotEqual (FlagGT_ULT)) -> (MOVWconst [1]) |
| (NotEqual (FlagGT_UGT)) -> (MOVWconst [1]) |
| |
| (LessThan (FlagEQ)) -> (MOVWconst [0]) |
| (LessThan (FlagLT_ULT)) -> (MOVWconst [1]) |
| (LessThan (FlagLT_UGT)) -> (MOVWconst [1]) |
| (LessThan (FlagGT_ULT)) -> (MOVWconst [0]) |
| (LessThan (FlagGT_UGT)) -> (MOVWconst [0]) |
| |
| (LessThanU (FlagEQ)) -> (MOVWconst [0]) |
| (LessThanU (FlagLT_ULT)) -> (MOVWconst [1]) |
| (LessThanU (FlagLT_UGT)) -> (MOVWconst [0]) |
| (LessThanU (FlagGT_ULT)) -> (MOVWconst [1]) |
| (LessThanU (FlagGT_UGT)) -> (MOVWconst [0]) |
| |
| (LessEqual (FlagEQ)) -> (MOVWconst [1]) |
| (LessEqual (FlagLT_ULT)) -> (MOVWconst [1]) |
| (LessEqual (FlagLT_UGT)) -> (MOVWconst [1]) |
| (LessEqual (FlagGT_ULT)) -> (MOVWconst [0]) |
| (LessEqual (FlagGT_UGT)) -> (MOVWconst [0]) |
| |
| (LessEqualU (FlagEQ)) -> (MOVWconst [1]) |
| (LessEqualU (FlagLT_ULT)) -> (MOVWconst [1]) |
| (LessEqualU (FlagLT_UGT)) -> (MOVWconst [0]) |
| (LessEqualU (FlagGT_ULT)) -> (MOVWconst [1]) |
| (LessEqualU (FlagGT_UGT)) -> (MOVWconst [0]) |
| |
| (GreaterThan (FlagEQ)) -> (MOVWconst [0]) |
| (GreaterThan (FlagLT_ULT)) -> (MOVWconst [0]) |
| (GreaterThan (FlagLT_UGT)) -> (MOVWconst [0]) |
| (GreaterThan (FlagGT_ULT)) -> (MOVWconst [1]) |
| (GreaterThan (FlagGT_UGT)) -> (MOVWconst [1]) |
| |
| (GreaterThanU (FlagEQ)) -> (MOVWconst [0]) |
| (GreaterThanU (FlagLT_ULT)) -> (MOVWconst [0]) |
| (GreaterThanU (FlagLT_UGT)) -> (MOVWconst [1]) |
| (GreaterThanU (FlagGT_ULT)) -> (MOVWconst [0]) |
| (GreaterThanU (FlagGT_UGT)) -> (MOVWconst [1]) |
| |
| (GreaterEqual (FlagEQ)) -> (MOVWconst [1]) |
| (GreaterEqual (FlagLT_ULT)) -> (MOVWconst [0]) |
| (GreaterEqual (FlagLT_UGT)) -> (MOVWconst [0]) |
| (GreaterEqual (FlagGT_ULT)) -> (MOVWconst [1]) |
| (GreaterEqual (FlagGT_UGT)) -> (MOVWconst [1]) |
| |
| (GreaterEqualU (FlagEQ)) -> (MOVWconst [1]) |
| (GreaterEqualU (FlagLT_ULT)) -> (MOVWconst [0]) |
| (GreaterEqualU (FlagLT_UGT)) -> (MOVWconst [1]) |
| (GreaterEqualU (FlagGT_ULT)) -> (MOVWconst [0]) |
| (GreaterEqualU (FlagGT_UGT)) -> (MOVWconst [1]) |
| |
| // absorb InvertFlags into boolean values |
| (Equal (InvertFlags x)) -> (Equal x) |
| (NotEqual (InvertFlags x)) -> (NotEqual x) |
| (LessThan (InvertFlags x)) -> (GreaterThan x) |
| (LessThanU (InvertFlags x)) -> (GreaterThanU x) |
| (GreaterThan (InvertFlags x)) -> (LessThan x) |
| (GreaterThanU (InvertFlags x)) -> (LessThanU x) |
| (LessEqual (InvertFlags x)) -> (GreaterEqual x) |
| (LessEqualU (InvertFlags x)) -> (GreaterEqualU x) |
| (GreaterEqual (InvertFlags x)) -> (LessEqual x) |
| (GreaterEqualU (InvertFlags x)) -> (LessEqualU x) |
| |
| // absorb flag constants into conditional instructions |
| (CMOVWLSconst _ (FlagEQ) [c]) -> (MOVWconst [c]) |
| (CMOVWLSconst _ (FlagLT_ULT) [c]) -> (MOVWconst [c]) |
| (CMOVWLSconst x (FlagLT_UGT)) -> x |
| (CMOVWLSconst _ (FlagGT_ULT) [c]) -> (MOVWconst [c]) |
| (CMOVWLSconst x (FlagGT_UGT)) -> x |
| |
| (CMOVWHSconst _ (FlagEQ) [c]) -> (MOVWconst [c]) |
| (CMOVWHSconst x (FlagLT_ULT)) -> x |
| (CMOVWHSconst _ (FlagLT_UGT) [c]) -> (MOVWconst [c]) |
| (CMOVWHSconst x (FlagGT_ULT)) -> x |
| (CMOVWHSconst _ (FlagGT_UGT) [c]) -> (MOVWconst [c]) |
| |
| (CMOVWLSconst x (InvertFlags flags) [c]) -> (CMOVWHSconst x flags [c]) |
| (CMOVWHSconst x (InvertFlags flags) [c]) -> (CMOVWLSconst x flags [c]) |
| |
| (SRAcond x _ (FlagEQ)) -> (SRAconst x [31]) |
| (SRAcond x y (FlagLT_ULT)) -> (SRA x y) |
| (SRAcond x _ (FlagLT_UGT)) -> (SRAconst x [31]) |
| (SRAcond x y (FlagGT_ULT)) -> (SRA x y) |
| (SRAcond x _ (FlagGT_UGT)) -> (SRAconst x [31]) |
| |
| // remove redundant *const ops |
| (ADDconst [0] x) -> x |
| (SUBconst [0] x) -> x |
| (ANDconst [0] _) -> (MOVWconst [0]) |
| (ANDconst [c] x) && int32(c)==-1 -> x |
| (ORconst [0] x) -> x |
| (ORconst [c] _) && int32(c)==-1 -> (MOVWconst [-1]) |
| (XORconst [0] x) -> x |
| (BICconst [0] x) -> x |
| (BICconst [c] _) && int32(c)==-1 -> (MOVWconst [0]) |
| |
| // generic constant folding |
| (ADDconst [c] x) && !isARMImmRot(uint32(c)) && isARMImmRot(uint32(-c)) -> (SUBconst [int64(int32(-c))] x) |
| (SUBconst [c] x) && !isARMImmRot(uint32(c)) && isARMImmRot(uint32(-c)) -> (ADDconst [int64(int32(-c))] x) |
| (ANDconst [c] x) && !isARMImmRot(uint32(c)) && isARMImmRot(^uint32(c)) -> (BICconst [int64(int32(^uint32(c)))] x) |
| (BICconst [c] x) && !isARMImmRot(uint32(c)) && isARMImmRot(^uint32(c)) -> (ANDconst [int64(int32(^uint32(c)))] x) |
| (ADDconst [c] x) && objabi.GOARM==7 && !isARMImmRot(uint32(c)) && uint32(c)>0xffff && uint32(-c)<=0xffff -> (SUBconst [int64(int32(-c))] x) |
| (SUBconst [c] x) && objabi.GOARM==7 && !isARMImmRot(uint32(c)) && uint32(c)>0xffff && uint32(-c)<=0xffff -> (ANDconst [int64(int32(-c))] x) |
| (ANDconst [c] x) && objabi.GOARM==7 && !isARMImmRot(uint32(c)) && uint32(c)>0xffff && ^uint32(c)<=0xffff -> (BICconst [int64(int32(^uint32(c)))] x) |
| (BICconst [c] x) && objabi.GOARM==7 && !isARMImmRot(uint32(c)) && uint32(c)>0xffff && ^uint32(c)<=0xffff -> (ANDconst [int64(int32(^uint32(c)))] x) |
| (ADDconst [c] (MOVWconst [d])) -> (MOVWconst [int64(int32(c+d))]) |
| (ADDconst [c] (ADDconst [d] x)) -> (ADDconst [int64(int32(c+d))] x) |
| (ADDconst [c] (SUBconst [d] x)) -> (ADDconst [int64(int32(c-d))] x) |
| (ADDconst [c] (RSBconst [d] x)) -> (RSBconst [int64(int32(c+d))] x) |
| (ADCconst [c] (ADDconst [d] x) flags) -> (ADCconst [int64(int32(c+d))] x flags) |
| (ADCconst [c] (SUBconst [d] x) flags) -> (ADCconst [int64(int32(c-d))] x flags) |
| (SUBconst [c] (MOVWconst [d])) -> (MOVWconst [int64(int32(d-c))]) |
| (SUBconst [c] (SUBconst [d] x)) -> (ADDconst [int64(int32(-c-d))] x) |
| (SUBconst [c] (ADDconst [d] x)) -> (ADDconst [int64(int32(-c+d))] x) |
| (SUBconst [c] (RSBconst [d] x)) -> (RSBconst [int64(int32(-c+d))] x) |
| (SBCconst [c] (ADDconst [d] x) flags) -> (SBCconst [int64(int32(c-d))] x flags) |
| (SBCconst [c] (SUBconst [d] x) flags) -> (SBCconst [int64(int32(c+d))] x flags) |
| (RSBconst [c] (MOVWconst [d])) -> (MOVWconst [int64(int32(c-d))]) |
| (RSBconst [c] (RSBconst [d] x)) -> (ADDconst [int64(int32(c-d))] x) |
| (RSBconst [c] (ADDconst [d] x)) -> (RSBconst [int64(int32(c-d))] x) |
| (RSBconst [c] (SUBconst [d] x)) -> (RSBconst [int64(int32(c+d))] x) |
| (RSCconst [c] (ADDconst [d] x) flags) -> (RSCconst [int64(int32(c-d))] x flags) |
| (RSCconst [c] (SUBconst [d] x) flags) -> (RSCconst [int64(int32(c+d))] x flags) |
| (SLLconst [c] (MOVWconst [d])) -> (MOVWconst [int64(int32(uint32(d)<<uint64(c)))]) |
| (SRLconst [c] (MOVWconst [d])) -> (MOVWconst [int64(int32(uint32(d)>>uint64(c)))]) |
| (SRAconst [c] (MOVWconst [d])) -> (MOVWconst [int64(int32(d)>>uint64(c))]) |
| (MUL (MOVWconst [c]) (MOVWconst [d])) -> (MOVWconst [int64(int32(c*d))]) |
| (MULA (MOVWconst [c]) (MOVWconst [d]) a) -> (ADDconst [int64(int32(c*d))] a) |
| (MULS (MOVWconst [c]) (MOVWconst [d]) a) -> (SUBconst [int64(int32(c*d))] a) |
| (Select0 (CALLudiv (MOVWconst [c]) (MOVWconst [d]))) -> (MOVWconst [int64(int32(uint32(c)/uint32(d)))]) |
| (Select1 (CALLudiv (MOVWconst [c]) (MOVWconst [d]))) -> (MOVWconst [int64(int32(uint32(c)%uint32(d)))]) |
| (ANDconst [c] (MOVWconst [d])) -> (MOVWconst [c&d]) |
| (ANDconst [c] (ANDconst [d] x)) -> (ANDconst [c&d] x) |
| (ORconst [c] (MOVWconst [d])) -> (MOVWconst [c|d]) |
| (ORconst [c] (ORconst [d] x)) -> (ORconst [c|d] x) |
| (XORconst [c] (MOVWconst [d])) -> (MOVWconst [c^d]) |
| (XORconst [c] (XORconst [d] x)) -> (XORconst [c^d] x) |
| (BICconst [c] (MOVWconst [d])) -> (MOVWconst [d&^c]) |
| (BICconst [c] (BICconst [d] x)) -> (BICconst [int64(int32(c|d))] x) |
| (MVN (MOVWconst [c])) -> (MOVWconst [^c]) |
| (MOVBreg (MOVWconst [c])) -> (MOVWconst [int64(int8(c))]) |
| (MOVBUreg (MOVWconst [c])) -> (MOVWconst [int64(uint8(c))]) |
| (MOVHreg (MOVWconst [c])) -> (MOVWconst [int64(int16(c))]) |
| (MOVHUreg (MOVWconst [c])) -> (MOVWconst [int64(uint16(c))]) |
| (MOVWreg (MOVWconst [c])) -> (MOVWconst [c]) |
| // BFX: Width = c >> 8, LSB = c & 0xff, result = d << (32 - Width - LSB) >> (32 - Width) |
| (BFX [c] (MOVWconst [d])) -> (MOVWconst [int64(int32(d)<<(32-uint32(c&0xff)-uint32(c>>8))>>(32-uint32(c>>8)))]) |
| (BFXU [c] (MOVWconst [d])) -> (MOVWconst [int64(int32(uint32(d)<<(32-uint32(c&0xff)-uint32(c>>8))>>(32-uint32(c>>8))))]) |
| |
| // absorb shifts into ops |
| (ADD x (SLLconst [c] y)) -> (ADDshiftLL x y [c]) |
| (ADD x (SRLconst [c] y)) -> (ADDshiftRL x y [c]) |
| (ADD x (SRAconst [c] y)) -> (ADDshiftRA x y [c]) |
| (ADD x (SLL y z)) -> (ADDshiftLLreg x y z) |
| (ADD x (SRL y z)) -> (ADDshiftRLreg x y z) |
| (ADD x (SRA y z)) -> (ADDshiftRAreg x y z) |
| (ADC x (SLLconst [c] y) flags) -> (ADCshiftLL x y [c] flags) |
| (ADC (SLLconst [c] y) x flags) -> (ADCshiftLL x y [c] flags) |
| (ADC x (SRLconst [c] y) flags) -> (ADCshiftRL x y [c] flags) |
| (ADC (SRLconst [c] y) x flags) -> (ADCshiftRL x y [c] flags) |
| (ADC x (SRAconst [c] y) flags) -> (ADCshiftRA x y [c] flags) |
| (ADC (SRAconst [c] y) x flags) -> (ADCshiftRA x y [c] flags) |
| (ADC x (SLL y z) flags) -> (ADCshiftLLreg x y z flags) |
| (ADC (SLL y z) x flags) -> (ADCshiftLLreg x y z flags) |
| (ADC x (SRL y z) flags) -> (ADCshiftRLreg x y z flags) |
| (ADC (SRL y z) x flags) -> (ADCshiftRLreg x y z flags) |
| (ADC x (SRA y z) flags) -> (ADCshiftRAreg x y z flags) |
| (ADC (SRA y z) x flags) -> (ADCshiftRAreg x y z flags) |
| (ADDS x (SLLconst [c] y)) -> (ADDSshiftLL x y [c]) |
| (ADDS x (SRLconst [c] y)) -> (ADDSshiftRL x y [c]) |
| (ADDS x (SRAconst [c] y)) -> (ADDSshiftRA x y [c]) |
| (ADDS x (SLL y z)) -> (ADDSshiftLLreg x y z) |
| (ADDS x (SRL y z)) -> (ADDSshiftRLreg x y z) |
| (ADDS x (SRA y z)) -> (ADDSshiftRAreg x y z) |
| (SUB x (SLLconst [c] y)) -> (SUBshiftLL x y [c]) |
| (SUB (SLLconst [c] y) x) -> (RSBshiftLL x y [c]) |
| (SUB x (SRLconst [c] y)) -> (SUBshiftRL x y [c]) |
| (SUB (SRLconst [c] y) x) -> (RSBshiftRL x y [c]) |
| (SUB x (SRAconst [c] y)) -> (SUBshiftRA x y [c]) |
| (SUB (SRAconst [c] y) x) -> (RSBshiftRA x y [c]) |
| (SUB x (SLL y z)) -> (SUBshiftLLreg x y z) |
| (SUB (SLL y z) x) -> (RSBshiftLLreg x y z) |
| (SUB x (SRL y z)) -> (SUBshiftRLreg x y z) |
| (SUB (SRL y z) x) -> (RSBshiftRLreg x y z) |
| (SUB x (SRA y z)) -> (SUBshiftRAreg x y z) |
| (SUB (SRA y z) x) -> (RSBshiftRAreg x y z) |
| (SBC x (SLLconst [c] y) flags) -> (SBCshiftLL x y [c] flags) |
| (SBC (SLLconst [c] y) x flags) -> (RSCshiftLL x y [c] flags) |
| (SBC x (SRLconst [c] y) flags) -> (SBCshiftRL x y [c] flags) |
| (SBC (SRLconst [c] y) x flags) -> (RSCshiftRL x y [c] flags) |
| (SBC x (SRAconst [c] y) flags) -> (SBCshiftRA x y [c] flags) |
| (SBC (SRAconst [c] y) x flags) -> (RSCshiftRA x y [c] flags) |
| (SBC x (SLL y z) flags) -> (SBCshiftLLreg x y z flags) |
| (SBC (SLL y z) x flags) -> (RSCshiftLLreg x y z flags) |
| (SBC x (SRL y z) flags) -> (SBCshiftRLreg x y z flags) |
| (SBC (SRL y z) x flags) -> (RSCshiftRLreg x y z flags) |
| (SBC x (SRA y z) flags) -> (SBCshiftRAreg x y z flags) |
| (SBC (SRA y z) x flags) -> (RSCshiftRAreg x y z flags) |
| (SUBS x (SLLconst [c] y)) -> (SUBSshiftLL x y [c]) |
| (SUBS (SLLconst [c] y) x) -> (RSBSshiftLL x y [c]) |
| (SUBS x (SRLconst [c] y)) -> (SUBSshiftRL x y [c]) |
| (SUBS (SRLconst [c] y) x) -> (RSBSshiftRL x y [c]) |
| (SUBS x (SRAconst [c] y)) -> (SUBSshiftRA x y [c]) |
| (SUBS (SRAconst [c] y) x) -> (RSBSshiftRA x y [c]) |
| (SUBS x (SLL y z)) -> (SUBSshiftLLreg x y z) |
| (SUBS (SLL y z) x) -> (RSBSshiftLLreg x y z) |
| (SUBS x (SRL y z)) -> (SUBSshiftRLreg x y z) |
| (SUBS (SRL y z) x) -> (RSBSshiftRLreg x y z) |
| (SUBS x (SRA y z)) -> (SUBSshiftRAreg x y z) |
| (SUBS (SRA y z) x) -> (RSBSshiftRAreg x y z) |
| (RSB x (SLLconst [c] y)) -> (RSBshiftLL x y [c]) |
| (RSB (SLLconst [c] y) x) -> (SUBshiftLL x y [c]) |
| (RSB x (SRLconst [c] y)) -> (RSBshiftRL x y [c]) |
| (RSB (SRLconst [c] y) x) -> (SUBshiftRL x y [c]) |
| (RSB x (SRAconst [c] y)) -> (RSBshiftRA x y [c]) |
| (RSB (SRAconst [c] y) x) -> (SUBshiftRA x y [c]) |
| (RSB x (SLL y z)) -> (RSBshiftLLreg x y z) |
| (RSB (SLL y z) x) -> (SUBshiftLLreg x y z) |
| (RSB x (SRL y z)) -> (RSBshiftRLreg x y z) |
| (RSB (SRL y z) x) -> (SUBshiftRLreg x y z) |
| (RSB x (SRA y z)) -> (RSBshiftRAreg x y z) |
| (RSB (SRA y z) x) -> (SUBshiftRAreg x y z) |
| (AND x (SLLconst [c] y)) -> (ANDshiftLL x y [c]) |
| (AND x (SRLconst [c] y)) -> (ANDshiftRL x y [c]) |
| (AND x (SRAconst [c] y)) -> (ANDshiftRA x y [c]) |
| (AND x (SLL y z)) -> (ANDshiftLLreg x y z) |
| (AND x (SRL y z)) -> (ANDshiftRLreg x y z) |
| (AND x (SRA y z)) -> (ANDshiftRAreg x y z) |
| (OR x (SLLconst [c] y)) -> (ORshiftLL x y [c]) |
| (OR x (SRLconst [c] y)) -> (ORshiftRL x y [c]) |
| (OR x (SRAconst [c] y)) -> (ORshiftRA x y [c]) |
| (OR x (SLL y z)) -> (ORshiftLLreg x y z) |
| (OR x (SRL y z)) -> (ORshiftRLreg x y z) |
| (OR x (SRA y z)) -> (ORshiftRAreg x y z) |
| (XOR x (SLLconst [c] y)) -> (XORshiftLL x y [c]) |
| (XOR x (SRLconst [c] y)) -> (XORshiftRL x y [c]) |
| (XOR x (SRAconst [c] y)) -> (XORshiftRA x y [c]) |
| (XOR x (SRRconst [c] y)) -> (XORshiftRR x y [c]) |
| (XOR x (SLL y z)) -> (XORshiftLLreg x y z) |
| (XOR x (SRL y z)) -> (XORshiftRLreg x y z) |
| (XOR x (SRA y z)) -> (XORshiftRAreg x y z) |
| (BIC x (SLLconst [c] y)) -> (BICshiftLL x y [c]) |
| (BIC x (SRLconst [c] y)) -> (BICshiftRL x y [c]) |
| (BIC x (SRAconst [c] y)) -> (BICshiftRA x y [c]) |
| (BIC x (SLL y z)) -> (BICshiftLLreg x y z) |
| (BIC x (SRL y z)) -> (BICshiftRLreg x y z) |
| (BIC x (SRA y z)) -> (BICshiftRAreg x y z) |
| (MVN (SLLconst [c] x)) -> (MVNshiftLL x [c]) |
| (MVN (SRLconst [c] x)) -> (MVNshiftRL x [c]) |
| (MVN (SRAconst [c] x)) -> (MVNshiftRA x [c]) |
| (MVN (SLL x y)) -> (MVNshiftLLreg x y) |
| (MVN (SRL x y)) -> (MVNshiftRLreg x y) |
| (MVN (SRA x y)) -> (MVNshiftRAreg x y) |
| |
| (CMP x (SLLconst [c] y)) -> (CMPshiftLL x y [c]) |
| (CMP (SLLconst [c] y) x) -> (InvertFlags (CMPshiftLL x y [c])) |
| (CMP x (SRLconst [c] y)) -> (CMPshiftRL x y [c]) |
| (CMP (SRLconst [c] y) x) -> (InvertFlags (CMPshiftRL x y [c])) |
| (CMP x (SRAconst [c] y)) -> (CMPshiftRA x y [c]) |
| (CMP (SRAconst [c] y) x) -> (InvertFlags (CMPshiftRA x y [c])) |
| (CMP x (SLL y z)) -> (CMPshiftLLreg x y z) |
| (CMP (SLL y z) x) -> (InvertFlags (CMPshiftLLreg x y z)) |
| (CMP x (SRL y z)) -> (CMPshiftRLreg x y z) |
| (CMP (SRL y z) x) -> (InvertFlags (CMPshiftRLreg x y z)) |
| (CMP x (SRA y z)) -> (CMPshiftRAreg x y z) |
| (CMP (SRA y z) x) -> (InvertFlags (CMPshiftRAreg x y z)) |
| (TST x (SLLconst [c] y)) -> (TSTshiftLL x y [c]) |
| (TST x (SRLconst [c] y)) -> (TSTshiftRL x y [c]) |
| (TST x (SRAconst [c] y)) -> (TSTshiftRA x y [c]) |
| (TST x (SLL y z)) -> (TSTshiftLLreg x y z) |
| (TST x (SRL y z)) -> (TSTshiftRLreg x y z) |
| (TST x (SRA y z)) -> (TSTshiftRAreg x y z) |
| (TEQ x (SLLconst [c] y)) -> (TEQshiftLL x y [c]) |
| (TEQ x (SRLconst [c] y)) -> (TEQshiftRL x y [c]) |
| (TEQ x (SRAconst [c] y)) -> (TEQshiftRA x y [c]) |
| (TEQ x (SLL y z)) -> (TEQshiftLLreg x y z) |
| (TEQ x (SRL y z)) -> (TEQshiftRLreg x y z) |
| (TEQ x (SRA y z)) -> (TEQshiftRAreg x y z) |
| (CMN x (SLLconst [c] y)) -> (CMNshiftLL x y [c]) |
| (CMN x (SRLconst [c] y)) -> (CMNshiftRL x y [c]) |
| (CMN x (SRAconst [c] y)) -> (CMNshiftRA x y [c]) |
| (CMN x (SLL y z)) -> (CMNshiftLLreg x y z) |
| (CMN x (SRL y z)) -> (CMNshiftRLreg x y z) |
| (CMN x (SRA y z)) -> (CMNshiftRAreg x y z) |
| |
| // prefer *const ops to *shift ops |
| (ADDshiftLL (MOVWconst [c]) x [d]) -> (ADDconst [c] (SLLconst <x.Type> x [d])) |
| (ADDshiftRL (MOVWconst [c]) x [d]) -> (ADDconst [c] (SRLconst <x.Type> x [d])) |
| (ADDshiftRA (MOVWconst [c]) x [d]) -> (ADDconst [c] (SRAconst <x.Type> x [d])) |
| (ADCshiftLL (MOVWconst [c]) x [d] flags) -> (ADCconst [c] (SLLconst <x.Type> x [d]) flags) |
| (ADCshiftRL (MOVWconst [c]) x [d] flags) -> (ADCconst [c] (SRLconst <x.Type> x [d]) flags) |
| (ADCshiftRA (MOVWconst [c]) x [d] flags) -> (ADCconst [c] (SRAconst <x.Type> x [d]) flags) |
| (ADDSshiftLL (MOVWconst [c]) x [d]) -> (ADDSconst [c] (SLLconst <x.Type> x [d])) |
| (ADDSshiftRL (MOVWconst [c]) x [d]) -> (ADDSconst [c] (SRLconst <x.Type> x [d])) |
| (ADDSshiftRA (MOVWconst [c]) x [d]) -> (ADDSconst [c] (SRAconst <x.Type> x [d])) |
| (SUBshiftLL (MOVWconst [c]) x [d]) -> (RSBconst [c] (SLLconst <x.Type> x [d])) |
| (SUBshiftRL (MOVWconst [c]) x [d]) -> (RSBconst [c] (SRLconst <x.Type> x [d])) |
| (SUBshiftRA (MOVWconst [c]) x [d]) -> (RSBconst [c] (SRAconst <x.Type> x [d])) |
| (SBCshiftLL (MOVWconst [c]) x [d] flags) -> (RSCconst [c] (SLLconst <x.Type> x [d]) flags) |
| (SBCshiftRL (MOVWconst [c]) x [d] flags) -> (RSCconst [c] (SRLconst <x.Type> x [d]) flags) |
| (SBCshiftRA (MOVWconst [c]) x [d] flags) -> (RSCconst [c] (SRAconst <x.Type> x [d]) flags) |
| (SUBSshiftLL (MOVWconst [c]) x [d]) -> (RSBSconst [c] (SLLconst <x.Type> x [d])) |
| (SUBSshiftRL (MOVWconst [c]) x [d]) -> (RSBSconst [c] (SRLconst <x.Type> x [d])) |
| (SUBSshiftRA (MOVWconst [c]) x [d]) -> (RSBSconst [c] (SRAconst <x.Type> x [d])) |
| (RSBshiftLL (MOVWconst [c]) x [d]) -> (SUBconst [c] (SLLconst <x.Type> x [d])) |
| (RSBshiftRL (MOVWconst [c]) x [d]) -> (SUBconst [c] (SRLconst <x.Type> x [d])) |
| (RSBshiftRA (MOVWconst [c]) x [d]) -> (SUBconst [c] (SRAconst <x.Type> x [d])) |
| (RSCshiftLL (MOVWconst [c]) x [d] flags) -> (SBCconst [c] (SLLconst <x.Type> x [d]) flags) |
| (RSCshiftRL (MOVWconst [c]) x [d] flags) -> (SBCconst [c] (SRLconst <x.Type> x [d]) flags) |
| (RSCshiftRA (MOVWconst [c]) x [d] flags) -> (SBCconst [c] (SRAconst <x.Type> x [d]) flags) |
| (RSBSshiftLL (MOVWconst [c]) x [d]) -> (SUBSconst [c] (SLLconst <x.Type> x [d])) |
| (RSBSshiftRL (MOVWconst [c]) x [d]) -> (SUBSconst [c] (SRLconst <x.Type> x [d])) |
| (RSBSshiftRA (MOVWconst [c]) x [d]) -> (SUBSconst [c] (SRAconst <x.Type> x [d])) |
| (ANDshiftLL (MOVWconst [c]) x [d]) -> (ANDconst [c] (SLLconst <x.Type> x [d])) |
| (ANDshiftRL (MOVWconst [c]) x [d]) -> (ANDconst [c] (SRLconst <x.Type> x [d])) |
| (ANDshiftRA (MOVWconst [c]) x [d]) -> (ANDconst [c] (SRAconst <x.Type> x [d])) |
| (ORshiftLL (MOVWconst [c]) x [d]) -> (ORconst [c] (SLLconst <x.Type> x [d])) |
| (ORshiftRL (MOVWconst [c]) x [d]) -> (ORconst [c] (SRLconst <x.Type> x [d])) |
| (ORshiftRA (MOVWconst [c]) x [d]) -> (ORconst [c] (SRAconst <x.Type> x [d])) |
| (XORshiftLL (MOVWconst [c]) x [d]) -> (XORconst [c] (SLLconst <x.Type> x [d])) |
| (XORshiftRL (MOVWconst [c]) x [d]) -> (XORconst [c] (SRLconst <x.Type> x [d])) |
| (XORshiftRA (MOVWconst [c]) x [d]) -> (XORconst [c] (SRAconst <x.Type> x [d])) |
| (XORshiftRR (MOVWconst [c]) x [d]) -> (XORconst [c] (SRRconst <x.Type> x [d])) |
| (CMPshiftLL (MOVWconst [c]) x [d]) -> (InvertFlags (CMPconst [c] (SLLconst <x.Type> x [d]))) |
| (CMPshiftRL (MOVWconst [c]) x [d]) -> (InvertFlags (CMPconst [c] (SRLconst <x.Type> x [d]))) |
| (CMPshiftRA (MOVWconst [c]) x [d]) -> (InvertFlags (CMPconst [c] (SRAconst <x.Type> x [d]))) |
| (TSTshiftLL (MOVWconst [c]) x [d]) -> (TSTconst [c] (SLLconst <x.Type> x [d])) |
| (TSTshiftRL (MOVWconst [c]) x [d]) -> (TSTconst [c] (SRLconst <x.Type> x [d])) |
| (TSTshiftRA (MOVWconst [c]) x [d]) -> (TSTconst [c] (SRAconst <x.Type> x [d])) |
| (TEQshiftLL (MOVWconst [c]) x [d]) -> (TEQconst [c] (SLLconst <x.Type> x [d])) |
| (TEQshiftRL (MOVWconst [c]) x [d]) -> (TEQconst [c] (SRLconst <x.Type> x [d])) |
| (TEQshiftRA (MOVWconst [c]) x [d]) -> (TEQconst [c] (SRAconst <x.Type> x [d])) |
| (CMNshiftLL (MOVWconst [c]) x [d]) -> (CMNconst [c] (SLLconst <x.Type> x [d])) |
| (CMNshiftRL (MOVWconst [c]) x [d]) -> (CMNconst [c] (SRLconst <x.Type> x [d])) |
| (CMNshiftRA (MOVWconst [c]) x [d]) -> (CMNconst [c] (SRAconst <x.Type> x [d])) |
| |
| (ADDshiftLLreg (MOVWconst [c]) x y) -> (ADDconst [c] (SLL <x.Type> x y)) |
| (ADDshiftRLreg (MOVWconst [c]) x y) -> (ADDconst [c] (SRL <x.Type> x y)) |
| (ADDshiftRAreg (MOVWconst [c]) x y) -> (ADDconst [c] (SRA <x.Type> x y)) |
| (ADCshiftLLreg (MOVWconst [c]) x y flags) -> (ADCconst [c] (SLL <x.Type> x y) flags) |
| (ADCshiftRLreg (MOVWconst [c]) x y flags) -> (ADCconst [c] (SRL <x.Type> x y) flags) |
| (ADCshiftRAreg (MOVWconst [c]) x y flags) -> (ADCconst [c] (SRA <x.Type> x y) flags) |
| (ADDSshiftLLreg (MOVWconst [c]) x y) -> (ADDSconst [c] (SLL <x.Type> x y)) |
| (ADDSshiftRLreg (MOVWconst [c]) x y) -> (ADDSconst [c] (SRL <x.Type> x y)) |
| (ADDSshiftRAreg (MOVWconst [c]) x y) -> (ADDSconst [c] (SRA <x.Type> x y)) |
| (SUBshiftLLreg (MOVWconst [c]) x y) -> (RSBconst [c] (SLL <x.Type> x y)) |
| (SUBshiftRLreg (MOVWconst [c]) x y) -> (RSBconst [c] (SRL <x.Type> x y)) |
| (SUBshiftRAreg (MOVWconst [c]) x y) -> (RSBconst [c] (SRA <x.Type> x y)) |
| (SBCshiftLLreg (MOVWconst [c]) x y flags) -> (RSCconst [c] (SLL <x.Type> x y) flags) |
| (SBCshiftRLreg (MOVWconst [c]) x y flags) -> (RSCconst [c] (SRL <x.Type> x y) flags) |
| (SBCshiftRAreg (MOVWconst [c]) x y flags) -> (RSCconst [c] (SRA <x.Type> x y) flags) |
| (SUBSshiftLLreg (MOVWconst [c]) x y) -> (RSBSconst [c] (SLL <x.Type> x y)) |
| (SUBSshiftRLreg (MOVWconst [c]) x y) -> (RSBSconst [c] (SRL <x.Type> x y)) |
| (SUBSshiftRAreg (MOVWconst [c]) x y) -> (RSBSconst [c] (SRA <x.Type> x y)) |
| (RSBshiftLLreg (MOVWconst [c]) x y) -> (SUBconst [c] (SLL <x.Type> x y)) |
| (RSBshiftRLreg (MOVWconst [c]) x y) -> (SUBconst [c] (SRL <x.Type> x y)) |
| (RSBshiftRAreg (MOVWconst [c]) x y) -> (SUBconst [c] (SRA <x.Type> x y)) |
| (RSCshiftLLreg (MOVWconst [c]) x y flags) -> (SBCconst [c] (SLL <x.Type> x y) flags) |
| (RSCshiftRLreg (MOVWconst [c]) x y flags) -> (SBCconst [c] (SRL <x.Type> x y) flags) |
| (RSCshiftRAreg (MOVWconst [c]) x y flags) -> (SBCconst [c] (SRA <x.Type> x y) flags) |
| (RSBSshiftLLreg (MOVWconst [c]) x y) -> (SUBSconst [c] (SLL <x.Type> x y)) |
| (RSBSshiftRLreg (MOVWconst [c]) x y) -> (SUBSconst [c] (SRL <x.Type> x y)) |
| (RSBSshiftRAreg (MOVWconst [c]) x y) -> (SUBSconst [c] (SRA <x.Type> x y)) |
| (ANDshiftLLreg (MOVWconst [c]) x y) -> (ANDconst [c] (SLL <x.Type> x y)) |
| (ANDshiftRLreg (MOVWconst [c]) x y) -> (ANDconst [c] (SRL <x.Type> x y)) |
| (ANDshiftRAreg (MOVWconst [c]) x y) -> (ANDconst [c] (SRA <x.Type> x y)) |
| (ORshiftLLreg (MOVWconst [c]) x y) -> (ORconst [c] (SLL <x.Type> x y)) |
| (ORshiftRLreg (MOVWconst [c]) x y) -> (ORconst [c] (SRL <x.Type> x y)) |
| (ORshiftRAreg (MOVWconst [c]) x y) -> (ORconst [c] (SRA <x.Type> x y)) |
| (XORshiftLLreg (MOVWconst [c]) x y) -> (XORconst [c] (SLL <x.Type> x y)) |
| (XORshiftRLreg (MOVWconst [c]) x y) -> (XORconst [c] (SRL <x.Type> x y)) |
| (XORshiftRAreg (MOVWconst [c]) x y) -> (XORconst [c] (SRA <x.Type> x y)) |
| (CMPshiftLLreg (MOVWconst [c]) x y) -> (InvertFlags (CMPconst [c] (SLL <x.Type> x y))) |
| (CMPshiftRLreg (MOVWconst [c]) x y) -> (InvertFlags (CMPconst [c] (SRL <x.Type> x y))) |
| (CMPshiftRAreg (MOVWconst [c]) x y) -> (InvertFlags (CMPconst [c] (SRA <x.Type> x y))) |
| (TSTshiftLLreg (MOVWconst [c]) x y) -> (TSTconst [c] (SLL <x.Type> x y)) |
| (TSTshiftRLreg (MOVWconst [c]) x y) -> (TSTconst [c] (SRL <x.Type> x y)) |
| (TSTshiftRAreg (MOVWconst [c]) x y) -> (TSTconst [c] (SRA <x.Type> x y)) |
| (TEQshiftLLreg (MOVWconst [c]) x y) -> (TEQconst [c] (SLL <x.Type> x y)) |
| (TEQshiftRLreg (MOVWconst [c]) x y) -> (TEQconst [c] (SRL <x.Type> x y)) |
| (TEQshiftRAreg (MOVWconst [c]) x y) -> (TEQconst [c] (SRA <x.Type> x y)) |
| (CMNshiftLLreg (MOVWconst [c]) x y) -> (CMNconst [c] (SLL <x.Type> x y)) |
| (CMNshiftRLreg (MOVWconst [c]) x y) -> (CMNconst [c] (SRL <x.Type> x y)) |
| (CMNshiftRAreg (MOVWconst [c]) x y) -> (CMNconst [c] (SRA <x.Type> x y)) |
| |
| // constant folding in *shift ops |
| (ADDshiftLL x (MOVWconst [c]) [d]) -> (ADDconst x [int64(int32(uint32(c)<<uint64(d)))]) |
| (ADDshiftRL x (MOVWconst [c]) [d]) -> (ADDconst x [int64(int32(uint32(c)>>uint64(d)))]) |
| (ADDshiftRA x (MOVWconst [c]) [d]) -> (ADDconst x [int64(int32(c)>>uint64(d))]) |
| (ADCshiftLL x (MOVWconst [c]) [d] flags) -> (ADCconst x [int64(int32(uint32(c)<<uint64(d)))] flags) |
| (ADCshiftRL x (MOVWconst [c]) [d] flags) -> (ADCconst x [int64(int32(uint32(c)>>uint64(d)))] flags) |
| (ADCshiftRA x (MOVWconst [c]) [d] flags) -> (ADCconst x [int64(int32(c)>>uint64(d))] flags) |
| (ADDSshiftLL x (MOVWconst [c]) [d]) -> (ADDSconst x [int64(int32(uint32(c)<<uint64(d)))]) |
| (ADDSshiftRL x (MOVWconst [c]) [d]) -> (ADDSconst x [int64(int32(uint32(c)>>uint64(d)))]) |
| (ADDSshiftRA x (MOVWconst [c]) [d]) -> (ADDSconst x [int64(int32(c)>>uint64(d))]) |
| (SUBshiftLL x (MOVWconst [c]) [d]) -> (SUBconst x [int64(int32(uint32(c)<<uint64(d)))]) |
| (SUBshiftRL x (MOVWconst [c]) [d]) -> (SUBconst x [int64(int32(uint32(c)>>uint64(d)))]) |
| (SUBshiftRA x (MOVWconst [c]) [d]) -> (SUBconst x [int64(int32(c)>>uint64(d))]) |
| (SBCshiftLL x (MOVWconst [c]) [d] flags) -> (SBCconst x [int64(int32(uint32(c)<<uint64(d)))] flags) |
| (SBCshiftRL x (MOVWconst [c]) [d] flags) -> (SBCconst x [int64(int32(uint32(c)>>uint64(d)))] flags) |
| (SBCshiftRA x (MOVWconst [c]) [d] flags) -> (SBCconst x [int64(int32(c)>>uint64(d))] flags) |
| (SUBSshiftLL x (MOVWconst [c]) [d]) -> (SUBSconst x [int64(int32(uint32(c)<<uint64(d)))]) |
| (SUBSshiftRL x (MOVWconst [c]) [d]) -> (SUBSconst x [int64(int32(uint32(c)>>uint64(d)))]) |
| (SUBSshiftRA x (MOVWconst [c]) [d]) -> (SUBSconst x [int64(int32(c)>>uint64(d))]) |
| (RSBshiftLL x (MOVWconst [c]) [d]) -> (RSBconst x [int64(int32(uint32(c)<<uint64(d)))]) |
| (RSBshiftRL x (MOVWconst [c]) [d]) -> (RSBconst x [int64(int32(uint32(c)>>uint64(d)))]) |
| (RSBshiftRA x (MOVWconst [c]) [d]) -> (RSBconst x [int64(int32(c)>>uint64(d))]) |
| (RSCshiftLL x (MOVWconst [c]) [d] flags) -> (RSCconst x [int64(int32(uint32(c)<<uint64(d)))] flags) |
| (RSCshiftRL x (MOVWconst [c]) [d] flags) -> (RSCconst x [int64(int32(uint32(c)>>uint64(d)))] flags) |
| (RSCshiftRA x (MOVWconst [c]) [d] flags) -> (RSCconst x [int64(int32(c)>>uint64(d))] flags) |
| (RSBSshiftLL x (MOVWconst [c]) [d]) -> (RSBSconst x [int64(int32(uint32(c)<<uint64(d)))]) |
| (RSBSshiftRL x (MOVWconst [c]) [d]) -> (RSBSconst x [int64(int32(uint32(c)>>uint64(d)))]) |
| (RSBSshiftRA x (MOVWconst [c]) [d]) -> (RSBSconst x [int64(int32(c)>>uint64(d))]) |
| (ANDshiftLL x (MOVWconst [c]) [d]) -> (ANDconst x [int64(int32(uint32(c)<<uint64(d)))]) |
| (ANDshiftRL x (MOVWconst [c]) [d]) -> (ANDconst x [int64(int32(uint32(c)>>uint64(d)))]) |
| (ANDshiftRA x (MOVWconst [c]) [d]) -> (ANDconst x [int64(int32(c)>>uint64(d))]) |
| (ORshiftLL x (MOVWconst [c]) [d]) -> (ORconst x [int64(int32(uint32(c)<<uint64(d)))]) |
| (ORshiftRL x (MOVWconst [c]) [d]) -> (ORconst x [int64(int32(uint32(c)>>uint64(d)))]) |
| (ORshiftRA x (MOVWconst [c]) [d]) -> (ORconst x [int64(int32(c)>>uint64(d))]) |
| (XORshiftLL x (MOVWconst [c]) [d]) -> (XORconst x [int64(int32(uint32(c)<<uint64(d)))]) |
| (XORshiftRL x (MOVWconst [c]) [d]) -> (XORconst x [int64(int32(uint32(c)>>uint64(d)))]) |
| (XORshiftRA x (MOVWconst [c]) [d]) -> (XORconst x [int64(int32(c)>>uint64(d))]) |
| (XORshiftRR x (MOVWconst [c]) [d]) -> (XORconst x [int64(int32(uint32(c)>>uint64(d)|uint32(c)<<uint64(32-d)))]) |
| (BICshiftLL x (MOVWconst [c]) [d]) -> (BICconst x [int64(int32(uint32(c)<<uint64(d)))]) |
| (BICshiftRL x (MOVWconst [c]) [d]) -> (BICconst x [int64(int32(uint32(c)>>uint64(d)))]) |
| (BICshiftRA x (MOVWconst [c]) [d]) -> (BICconst x [int64(int32(c)>>uint64(d))]) |
| (MVNshiftLL (MOVWconst [c]) [d]) -> (MOVWconst [^int64(uint32(c)<<uint64(d))]) |
| (MVNshiftRL (MOVWconst [c]) [d]) -> (MOVWconst [^int64(uint32(c)>>uint64(d))]) |
| (MVNshiftRA (MOVWconst [c]) [d]) -> (MOVWconst [^int64(int32(c)>>uint64(d))]) |
| (CMPshiftLL x (MOVWconst [c]) [d]) -> (CMPconst x [int64(int32(uint32(c)<<uint64(d)))]) |
| (CMPshiftRL x (MOVWconst [c]) [d]) -> (CMPconst x [int64(int32(uint32(c)>>uint64(d)))]) |
| (CMPshiftRA x (MOVWconst [c]) [d]) -> (CMPconst x [int64(int32(c)>>uint64(d))]) |
| (TSTshiftLL x (MOVWconst [c]) [d]) -> (TSTconst x [int64(int32(uint32(c)<<uint64(d)))]) |
| (TSTshiftRL x (MOVWconst [c]) [d]) -> (TSTconst x [int64(int32(uint32(c)>>uint64(d)))]) |
| (TSTshiftRA x (MOVWconst [c]) [d]) -> (TSTconst x [int64(int32(c)>>uint64(d))]) |
| (TEQshiftLL x (MOVWconst [c]) [d]) -> (TEQconst x [int64(int32(uint32(c)<<uint64(d)))]) |
| (TEQshiftRL x (MOVWconst [c]) [d]) -> (TEQconst x [int64(int32(uint32(c)>>uint64(d)))]) |
| (TEQshiftRA x (MOVWconst [c]) [d]) -> (TEQconst x [int64(int32(c)>>uint64(d))]) |
| (CMNshiftLL x (MOVWconst [c]) [d]) -> (CMNconst x [int64(int32(uint32(c)<<uint64(d)))]) |
| (CMNshiftRL x (MOVWconst [c]) [d]) -> (CMNconst x [int64(int32(uint32(c)>>uint64(d)))]) |
| (CMNshiftRA x (MOVWconst [c]) [d]) -> (CMNconst x [int64(int32(c)>>uint64(d))]) |
| |
| (ADDshiftLLreg x y (MOVWconst [c])) -> (ADDshiftLL x y [c]) |
| (ADDshiftRLreg x y (MOVWconst [c])) -> (ADDshiftRL x y [c]) |
| (ADDshiftRAreg x y (MOVWconst [c])) -> (ADDshiftRA x y [c]) |
| (ADCshiftLLreg x y (MOVWconst [c]) flags) -> (ADCshiftLL x y [c] flags) |
| (ADCshiftRLreg x y (MOVWconst [c]) flags) -> (ADCshiftRL x y [c] flags) |
| (ADCshiftRAreg x y (MOVWconst [c]) flags) -> (ADCshiftRA x y [c] flags) |
| (ADDSshiftLLreg x y (MOVWconst [c])) -> (ADDSshiftLL x y [c]) |
| (ADDSshiftRLreg x y (MOVWconst [c])) -> (ADDSshiftRL x y [c]) |
| (ADDSshiftRAreg x y (MOVWconst [c])) -> (ADDSshiftRA x y [c]) |
| (SUBshiftLLreg x y (MOVWconst [c])) -> (SUBshiftLL x y [c]) |
| (SUBshiftRLreg x y (MOVWconst [c])) -> (SUBshiftRL x y [c]) |
| (SUBshiftRAreg x y (MOVWconst [c])) -> (SUBshiftRA x y [c]) |
| (SBCshiftLLreg x y (MOVWconst [c]) flags) -> (SBCshiftLL x y [c] flags) |
| (SBCshiftRLreg x y (MOVWconst [c]) flags) -> (SBCshiftRL x y [c] flags) |
| (SBCshiftRAreg x y (MOVWconst [c]) flags) -> (SBCshiftRA x y [c] flags) |
| (SUBSshiftLLreg x y (MOVWconst [c])) -> (SUBSshiftLL x y [c]) |
| (SUBSshiftRLreg x y (MOVWconst [c])) -> (SUBSshiftRL x y [c]) |
| (SUBSshiftRAreg x y (MOVWconst [c])) -> (SUBSshiftRA x y [c]) |
| (RSBshiftLLreg x y (MOVWconst [c])) -> (RSBshiftLL x y [c]) |
| (RSBshiftRLreg x y (MOVWconst [c])) -> (RSBshiftRL x y [c]) |
| (RSBshiftRAreg x y (MOVWconst [c])) -> (RSBshiftRA x y [c]) |
| (RSCshiftLLreg x y (MOVWconst [c]) flags) -> (RSCshiftLL x y [c] flags) |
| (RSCshiftRLreg x y (MOVWconst [c]) flags) -> (RSCshiftRL x y [c] flags) |
| (RSCshiftRAreg x y (MOVWconst [c]) flags) -> (RSCshiftRA x y [c] flags) |
| (RSBSshiftLLreg x y (MOVWconst [c])) -> (RSBSshiftLL x y [c]) |
| (RSBSshiftRLreg x y (MOVWconst [c])) -> (RSBSshiftRL x y [c]) |
| (RSBSshiftRAreg x y (MOVWconst [c])) -> (RSBSshiftRA x y [c]) |
| (ANDshiftLLreg x y (MOVWconst [c])) -> (ANDshiftLL x y [c]) |
| (ANDshiftRLreg x y (MOVWconst [c])) -> (ANDshiftRL x y [c]) |
| (ANDshiftRAreg x y (MOVWconst [c])) -> (ANDshiftRA x y [c]) |
| (ORshiftLLreg x y (MOVWconst [c])) -> (ORshiftLL x y [c]) |
| (ORshiftRLreg x y (MOVWconst [c])) -> (ORshiftRL x y [c]) |
| (ORshiftRAreg x y (MOVWconst [c])) -> (ORshiftRA x y [c]) |
| (XORshiftLLreg x y (MOVWconst [c])) -> (XORshiftLL x y [c]) |
| (XORshiftRLreg x y (MOVWconst [c])) -> (XORshiftRL x y [c]) |
| (XORshiftRAreg x y (MOVWconst [c])) -> (XORshiftRA x y [c]) |
| (BICshiftLLreg x y (MOVWconst [c])) -> (BICshiftLL x y [c]) |
| (BICshiftRLreg x y (MOVWconst [c])) -> (BICshiftRL x y [c]) |
| (BICshiftRAreg x y (MOVWconst [c])) -> (BICshiftRA x y [c]) |
| (MVNshiftLLreg x (MOVWconst [c])) -> (MVNshiftLL x [c]) |
| (MVNshiftRLreg x (MOVWconst [c])) -> (MVNshiftRL x [c]) |
| (MVNshiftRAreg x (MOVWconst [c])) -> (MVNshiftRA x [c]) |
| (CMPshiftLLreg x y (MOVWconst [c])) -> (CMPshiftLL x y [c]) |
| (CMPshiftRLreg x y (MOVWconst [c])) -> (CMPshiftRL x y [c]) |
| (CMPshiftRAreg x y (MOVWconst [c])) -> (CMPshiftRA x y [c]) |
| (TSTshiftLLreg x y (MOVWconst [c])) -> (TSTshiftLL x y [c]) |
| (TSTshiftRLreg x y (MOVWconst [c])) -> (TSTshiftRL x y [c]) |
| (TSTshiftRAreg x y (MOVWconst [c])) -> (TSTshiftRA x y [c]) |
| (TEQshiftLLreg x y (MOVWconst [c])) -> (TEQshiftLL x y [c]) |
| (TEQshiftRLreg x y (MOVWconst [c])) -> (TEQshiftRL x y [c]) |
| (TEQshiftRAreg x y (MOVWconst [c])) -> (TEQshiftRA x y [c]) |
| (CMNshiftLLreg x y (MOVWconst [c])) -> (CMNshiftLL x y [c]) |
| (CMNshiftRLreg x y (MOVWconst [c])) -> (CMNshiftRL x y [c]) |
| (CMNshiftRAreg x y (MOVWconst [c])) -> (CMNshiftRA x y [c]) |
| |
| // Generate rotates |
| (ADDshiftLL [c] (SRLconst x [32-c]) x) -> (SRRconst [32-c] x) |
| ( ORshiftLL [c] (SRLconst x [32-c]) x) -> (SRRconst [32-c] x) |
| (XORshiftLL [c] (SRLconst x [32-c]) x) -> (SRRconst [32-c] x) |
| (ADDshiftRL [c] (SLLconst x [32-c]) x) -> (SRRconst [ c] x) |
| ( ORshiftRL [c] (SLLconst x [32-c]) x) -> (SRRconst [ c] x) |
| (XORshiftRL [c] (SLLconst x [32-c]) x) -> (SRRconst [ c] x) |
| |
| // use indexed loads and stores |
| (MOVWload [0] {sym} (ADD ptr idx) mem) && sym == nil && !config.nacl -> (MOVWloadidx ptr idx mem) |
| (MOVWstore [0] {sym} (ADD ptr idx) val mem) && sym == nil && !config.nacl -> (MOVWstoreidx ptr idx val mem) |
| (MOVWload [0] {sym} (ADDshiftLL ptr idx [c]) mem) && sym == nil && !config.nacl -> (MOVWloadshiftLL ptr idx [c] mem) |
| (MOVWload [0] {sym} (ADDshiftRL ptr idx [c]) mem) && sym == nil && !config.nacl -> (MOVWloadshiftRL ptr idx [c] mem) |
| (MOVWload [0] {sym} (ADDshiftRA ptr idx [c]) mem) && sym == nil && !config.nacl -> (MOVWloadshiftRA ptr idx [c] mem) |
| (MOVWstore [0] {sym} (ADDshiftLL ptr idx [c]) val mem) && sym == nil && !config.nacl -> (MOVWstoreshiftLL ptr idx [c] val mem) |
| (MOVWstore [0] {sym} (ADDshiftRL ptr idx [c]) val mem) && sym == nil && !config.nacl -> (MOVWstoreshiftRL ptr idx [c] val mem) |
| (MOVWstore [0] {sym} (ADDshiftRA ptr idx [c]) val mem) && sym == nil && !config.nacl -> (MOVWstoreshiftRA ptr idx [c] val mem) |
| (MOVBUload [0] {sym} (ADD ptr idx) mem) && sym == nil && !config.nacl -> (MOVBUloadidx ptr idx mem) |
| (MOVBload [0] {sym} (ADD ptr idx) mem) && sym == nil && !config.nacl -> (MOVBloadidx ptr idx mem) |
| (MOVBstore [0] {sym} (ADD ptr idx) val mem) && sym == nil && !config.nacl -> (MOVBstoreidx ptr idx val mem) |
| (MOVHUload [0] {sym} (ADD ptr idx) mem) && sym == nil && !config.nacl -> (MOVHUloadidx ptr idx mem) |
| (MOVHload [0] {sym} (ADD ptr idx) mem) && sym == nil && !config.nacl -> (MOVHloadidx ptr idx mem) |
| (MOVHstore [0] {sym} (ADD ptr idx) val mem) && sym == nil && !config.nacl -> (MOVHstoreidx ptr idx val mem) |
| |
| // constant folding in indexed loads and stores |
| (MOVWloadidx ptr (MOVWconst [c]) mem) -> (MOVWload [c] ptr mem) |
| (MOVWloadidx (MOVWconst [c]) ptr mem) -> (MOVWload [c] ptr mem) |
| (MOVBloadidx ptr (MOVWconst [c]) mem) -> (MOVBload [c] ptr mem) |
| (MOVBloadidx (MOVWconst [c]) ptr mem) -> (MOVBload [c] ptr mem) |
| (MOVBUloadidx ptr (MOVWconst [c]) mem) -> (MOVBUload [c] ptr mem) |
| (MOVBUloadidx (MOVWconst [c]) ptr mem) -> (MOVBUload [c] ptr mem) |
| (MOVHUloadidx ptr (MOVWconst [c]) mem) -> (MOVHUload [c] ptr mem) |
| (MOVHUloadidx (MOVWconst [c]) ptr mem) -> (MOVHUload [c] ptr mem) |
| (MOVHloadidx ptr (MOVWconst [c]) mem) -> (MOVHload [c] ptr mem) |
| (MOVHloadidx (MOVWconst [c]) ptr mem) -> (MOVHload [c] ptr mem) |
| |
| (MOVWstoreidx ptr (MOVWconst [c]) val mem) -> (MOVWstore [c] ptr val mem) |
| (MOVWstoreidx (MOVWconst [c]) ptr val mem) -> (MOVWstore [c] ptr val mem) |
| (MOVBstoreidx ptr (MOVWconst [c]) val mem) -> (MOVBstore [c] ptr val mem) |
| (MOVBstoreidx (MOVWconst [c]) ptr val mem) -> (MOVBstore [c] ptr val mem) |
| (MOVHstoreidx ptr (MOVWconst [c]) val mem) -> (MOVHstore [c] ptr val mem) |
| (MOVHstoreidx (MOVWconst [c]) ptr val mem) -> (MOVHstore [c] ptr val mem) |
| |
| (MOVWloadidx ptr (SLLconst idx [c]) mem) -> (MOVWloadshiftLL ptr idx [c] mem) |
| (MOVWloadidx (SLLconst idx [c]) ptr mem) -> (MOVWloadshiftLL ptr idx [c] mem) |
| (MOVWloadidx ptr (SRLconst idx [c]) mem) -> (MOVWloadshiftRL ptr idx [c] mem) |
| (MOVWloadidx (SRLconst idx [c]) ptr mem) -> (MOVWloadshiftRL ptr idx [c] mem) |
| (MOVWloadidx ptr (SRAconst idx [c]) mem) -> (MOVWloadshiftRA ptr idx [c] mem) |
| (MOVWloadidx (SRAconst idx [c]) ptr mem) -> (MOVWloadshiftRA ptr idx [c] mem) |
| |
| (MOVWstoreidx ptr (SLLconst idx [c]) val mem) -> (MOVWstoreshiftLL ptr idx [c] val mem) |
| (MOVWstoreidx (SLLconst idx [c]) ptr val mem) -> (MOVWstoreshiftLL ptr idx [c] val mem) |
| (MOVWstoreidx ptr (SRLconst idx [c]) val mem) -> (MOVWstoreshiftRL ptr idx [c] val mem) |
| (MOVWstoreidx (SRLconst idx [c]) ptr val mem) -> (MOVWstoreshiftRL ptr idx [c] val mem) |
| (MOVWstoreidx ptr (SRAconst idx [c]) val mem) -> (MOVWstoreshiftRA ptr idx [c] val mem) |
| (MOVWstoreidx (SRAconst idx [c]) ptr val mem) -> (MOVWstoreshiftRA ptr idx [c] val mem) |
| |
| (MOVWloadshiftLL ptr (MOVWconst [c]) [d] mem) -> (MOVWload [int64(uint32(c)<<uint64(d))] ptr mem) |
| (MOVWloadshiftRL ptr (MOVWconst [c]) [d] mem) -> (MOVWload [int64(uint32(c)>>uint64(d))] ptr mem) |
| (MOVWloadshiftRA ptr (MOVWconst [c]) [d] mem) -> (MOVWload [int64(int32(c)>>uint64(d))] ptr mem) |
| |
| (MOVWstoreshiftLL ptr (MOVWconst [c]) [d] val mem) -> (MOVWstore [int64(uint32(c)<<uint64(d))] ptr val mem) |
| (MOVWstoreshiftRL ptr (MOVWconst [c]) [d] val mem) -> (MOVWstore [int64(uint32(c)>>uint64(d))] ptr val mem) |
| (MOVWstoreshiftRA ptr (MOVWconst [c]) [d] val mem) -> (MOVWstore [int64(int32(c)>>uint64(d))] ptr val mem) |
| |
| // generic simplifications |
| (ADD x (RSBconst [0] y)) -> (SUB x y) |
| (ADD <t> (RSBconst [c] x) (RSBconst [d] y)) -> (RSBconst [c+d] (ADD <t> x y)) |
| (SUB x x) -> (MOVWconst [0]) |
| (RSB x x) -> (MOVWconst [0]) |
| (AND x x) -> x |
| (OR x x) -> x |
| (XOR x x) -> (MOVWconst [0]) |
| (BIC x x) -> (MOVWconst [0]) |
| |
| (ADD (MUL x y) a) -> (MULA x y a) |
| (SUB a (MUL x y)) && objabi.GOARM == 7 -> (MULS x y a) |
| (RSB (MUL x y) a) && objabi.GOARM == 7 -> (MULS x y a) |
| |
| (NEGF (MULF x y)) && objabi.GOARM >= 6 -> (NMULF x y) |
| (NEGD (MULD x y)) && objabi.GOARM >= 6 -> (NMULD x y) |
| (MULF (NEGF x) y) && objabi.GOARM >= 6 -> (NMULF x y) |
| (MULD (NEGD x) y) && objabi.GOARM >= 6 -> (NMULD x y) |
| (NMULF (NEGF x) y) -> (MULF x y) |
| (NMULD (NEGD x) y) -> (MULD x y) |
| |
| // the result will overwrite the addend, since they are in the same register |
| (ADDF a (MULF x y)) && a.Uses == 1 && objabi.GOARM >= 6 -> (MULAF a x y) |
| (ADDF a (NMULF x y)) && a.Uses == 1 && objabi.GOARM >= 6 -> (MULSF a x y) |
| (ADDD a (MULD x y)) && a.Uses == 1 && objabi.GOARM >= 6 -> (MULAD a x y) |
| (ADDD a (NMULD x y)) && a.Uses == 1 && objabi.GOARM >= 6 -> (MULSD a x y) |
| (SUBF a (MULF x y)) && a.Uses == 1 && objabi.GOARM >= 6 -> (MULSF a x y) |
| (SUBF a (NMULF x y)) && a.Uses == 1 && objabi.GOARM >= 6 -> (MULAF a x y) |
| (SUBD a (MULD x y)) && a.Uses == 1 && objabi.GOARM >= 6 -> (MULSD a x y) |
| (SUBD a (NMULD x y)) && a.Uses == 1 && objabi.GOARM >= 6 -> (MULAD a x y) |
| |
| (AND x (MVN y)) -> (BIC x y) |
| |
| // simplification with *shift ops |
| (SUBshiftLL x (SLLconst x [c]) [d]) && c==d -> (MOVWconst [0]) |
| (SUBshiftRL x (SRLconst x [c]) [d]) && c==d -> (MOVWconst [0]) |
| (SUBshiftRA x (SRAconst x [c]) [d]) && c==d -> (MOVWconst [0]) |
| (RSBshiftLL x (SLLconst x [c]) [d]) && c==d -> (MOVWconst [0]) |
| (RSBshiftRL x (SRLconst x [c]) [d]) && c==d -> (MOVWconst [0]) |
| (RSBshiftRA x (SRAconst x [c]) [d]) && c==d -> (MOVWconst [0]) |
| (ANDshiftLL x y:(SLLconst x [c]) [d]) && c==d -> y |
| (ANDshiftRL x y:(SRLconst x [c]) [d]) && c==d -> y |
| (ANDshiftRA x y:(SRAconst x [c]) [d]) && c==d -> y |
| (ORshiftLL x y:(SLLconst x [c]) [d]) && c==d -> y |
| (ORshiftRL x y:(SRLconst x [c]) [d]) && c==d -> y |
| (ORshiftRA x y:(SRAconst x [c]) [d]) && c==d -> y |
| (XORshiftLL x (SLLconst x [c]) [d]) && c==d -> (MOVWconst [0]) |
| (XORshiftRL x (SRLconst x [c]) [d]) && c==d -> (MOVWconst [0]) |
| (XORshiftRA x (SRAconst x [c]) [d]) && c==d -> (MOVWconst [0]) |
| (BICshiftLL x (SLLconst x [c]) [d]) && c==d -> (MOVWconst [0]) |
| (BICshiftRL x (SRLconst x [c]) [d]) && c==d -> (MOVWconst [0]) |
| (BICshiftRA x (SRAconst x [c]) [d]) && c==d -> (MOVWconst [0]) |
| (AND x (MVNshiftLL y [c])) -> (BICshiftLL x y [c]) |
| (AND x (MVNshiftRL y [c])) -> (BICshiftRL x y [c]) |
| (AND x (MVNshiftRA y [c])) -> (BICshiftRA x y [c]) |
| |
| // floating point optimizations |
| (CMPF x (MOVFconst [0])) -> (CMPF0 x) |
| (CMPD x (MOVDconst [0])) -> (CMPD0 x) |
| |
| // bit extraction |
| (SRAconst (SLLconst x [c]) [d]) && objabi.GOARM==7 && uint64(d)>=uint64(c) && uint64(d)<=31 -> (BFX [(d-c)|(32-d)<<8] x) |
| (SRLconst (SLLconst x [c]) [d]) && objabi.GOARM==7 && uint64(d)>=uint64(c) && uint64(d)<=31 -> (BFXU [(d-c)|(32-d)<<8] x) |
| |
| // comparison simplification |
| (CMP x (RSBconst [0] y)) -> (CMN x y) |
| (CMN x (RSBconst [0] y)) -> (CMP x y) |
| (EQ (CMPconst [0] l:(SUB x y)) yes no) && l.Uses==1 -> (EQ (CMP x y) yes no) |
| (EQ (CMPconst [0] l:(MULS x y a)) yes no) && l.Uses==1 -> (EQ (CMP a (MUL <x.Type> x y)) yes no) |
| (EQ (CMPconst [0] l:(SUBconst [c] x)) yes no) && l.Uses==1 -> (EQ (CMPconst [c] x) yes no) |
| (EQ (CMPconst [0] l:(SUBshiftLL x y [c])) yes no) && l.Uses==1 -> (EQ (CMPshiftLL x y [c]) yes no) |
| (EQ (CMPconst [0] l:(SUBshiftRL x y [c])) yes no) && l.Uses==1 -> (EQ (CMPshiftRL x y [c]) yes no) |
| (EQ (CMPconst [0] l:(SUBshiftRA x y [c])) yes no) && l.Uses==1 -> (EQ (CMPshiftRA x y [c]) yes no) |
| (EQ (CMPconst [0] l:(SUBshiftLLreg x y z)) yes no) && l.Uses==1 -> (EQ (CMPshiftLLreg x y z) yes no) |
| (EQ (CMPconst [0] l:(SUBshiftRLreg x y z)) yes no) && l.Uses==1 -> (EQ (CMPshiftRLreg x y z) yes no) |
| (EQ (CMPconst [0] l:(SUBshiftRAreg x y z)) yes no) && l.Uses==1 -> (EQ (CMPshiftRAreg x y z) yes no) |
| (NE (CMPconst [0] l:(SUB x y)) yes no) && l.Uses==1 -> (NE (CMP x y) yes no) |
| (NE (CMPconst [0] l:(MULS x y a)) yes no) && l.Uses==1 -> (NE (CMP a (MUL <x.Type> x y)) yes no) |
| (NE (CMPconst [0] l:(SUBconst [c] x)) yes no) && l.Uses==1 -> (NE (CMPconst [c] x) yes no) |
| (NE (CMPconst [0] l:(SUBshiftLL x y [c])) yes no) && l.Uses==1 -> (NE (CMPshiftLL x y [c]) yes no) |
| (NE (CMPconst [0] l:(SUBshiftRL x y [c])) yes no) && l.Uses==1 -> (NE (CMPshiftRL x y [c]) yes no) |
| (NE (CMPconst [0] l:(SUBshiftRA x y [c])) yes no) && l.Uses==1 -> (NE (CMPshiftRA x y [c]) yes no) |
| (NE (CMPconst [0] l:(SUBshiftLLreg x y z)) yes no) && l.Uses==1 -> (NE (CMPshiftLLreg x y z) yes no) |
| (NE (CMPconst [0] l:(SUBshiftRLreg x y z)) yes no) && l.Uses==1 -> (NE (CMPshiftRLreg x y z) yes no) |
| (NE (CMPconst [0] l:(SUBshiftRAreg x y z)) yes no) && l.Uses==1 -> (NE (CMPshiftRAreg x y z) yes no) |
| (EQ (CMPconst [0] l:(ADD x y)) yes no) && l.Uses==1 -> (EQ (CMN x y) yes no) |
| (EQ (CMPconst [0] l:(MULA x y a)) yes no) && l.Uses==1 -> (EQ (CMN a (MUL <x.Type> x y)) yes no) |
| (EQ (CMPconst [0] l:(ADDconst [c] x)) yes no) && l.Uses==1 -> (EQ (CMNconst [c] x) yes no) |
| (EQ (CMPconst [0] l:(ADDshiftLL x y [c])) yes no) && l.Uses==1 -> (EQ (CMNshiftLL x y [c]) yes no) |
| (EQ (CMPconst [0] l:(ADDshiftRL x y [c])) yes no) && l.Uses==1 -> (EQ (CMNshiftRL x y [c]) yes no) |
| (EQ (CMPconst [0] l:(ADDshiftRA x y [c])) yes no) && l.Uses==1 -> (EQ (CMNshiftRA x y [c]) yes no) |
| (EQ (CMPconst [0] l:(ADDshiftLLreg x y z)) yes no) && l.Uses==1 -> (EQ (CMNshiftLLreg x y z) yes no) |
| (EQ (CMPconst [0] l:(ADDshiftRLreg x y z)) yes no) && l.Uses==1 -> (EQ (CMNshiftRLreg x y z) yes no) |
| (EQ (CMPconst [0] l:(ADDshiftRAreg x y z)) yes no) && l.Uses==1 -> (EQ (CMNshiftRAreg x y z) yes no) |
| (NE (CMPconst [0] l:(ADD x y)) yes no) && l.Uses==1 -> (NE (CMN x y) yes no) |
| (NE (CMPconst [0] l:(MULA x y a)) yes no) && l.Uses==1 -> (NE (CMN a (MUL <x.Type> x y)) yes no) |
| (NE (CMPconst [0] l:(ADDconst [c] x)) yes no) && l.Uses==1 -> (NE (CMNconst [c] x) yes no) |
| (NE (CMPconst [0] l:(ADDshiftLL x y [c])) yes no) && l.Uses==1 -> (NE (CMNshiftLL x y [c]) yes no) |
| (NE (CMPconst [0] l:(ADDshiftRL x y [c])) yes no) && l.Uses==1 -> (NE (CMNshiftRL x y [c]) yes no) |
| (NE (CMPconst [0] l:(ADDshiftRA x y [c])) yes no) && l.Uses==1 -> (NE (CMNshiftRA x y [c]) yes no) |
| (NE (CMPconst [0] l:(ADDshiftLLreg x y z)) yes no) && l.Uses==1 -> (NE (CMNshiftLLreg x y z) yes no) |
| (NE (CMPconst [0] l:(ADDshiftRLreg x y z)) yes no) && l.Uses==1 -> (NE (CMNshiftRLreg x y z) yes no) |
| (NE (CMPconst [0] l:(ADDshiftRAreg x y z)) yes no) && l.Uses==1 -> (NE (CMNshiftRAreg x y z) yes no) |
| (EQ (CMPconst [0] l:(AND x y)) yes no) && l.Uses==1 -> (EQ (TST x y) yes no) |
| (EQ (CMPconst [0] l:(ANDconst [c] x)) yes no) && l.Uses==1 -> (EQ (TSTconst [c] x) yes no) |
| (EQ (CMPconst [0] l:(ANDshiftLL x y [c])) yes no) && l.Uses==1 -> (EQ (TSTshiftLL x y [c]) yes no) |
| (EQ (CMPconst [0] l:(ANDshiftRL x y [c])) yes no) && l.Uses==1 -> (EQ (TSTshiftRL x y [c]) yes no) |
| (EQ (CMPconst [0] l:(ANDshiftRA x y [c])) yes no) && l.Uses==1 -> (EQ (TSTshiftRA x y [c]) yes no) |
| (EQ (CMPconst [0] l:(ANDshiftLLreg x y z)) yes no) && l.Uses==1 -> (EQ (TSTshiftLLreg x y z) yes no) |
| (EQ (CMPconst [0] l:(ANDshiftRLreg x y z)) yes no) && l.Uses==1 -> (EQ (TSTshiftRLreg x y z) yes no) |
| (EQ (CMPconst [0] l:(ANDshiftRAreg x y z)) yes no) && l.Uses==1 -> (EQ (TSTshiftRAreg x y z) yes no) |
| (NE (CMPconst [0] l:(AND x y)) yes no) && l.Uses==1 -> (NE (TST x y) yes no) |
| (NE (CMPconst [0] l:(ANDconst [c] x)) yes no) && l.Uses==1 -> (NE (TSTconst [c] x) yes no) |
| (NE (CMPconst [0] l:(ANDshiftLL x y [c])) yes no) && l.Uses==1 -> (NE (TSTshiftLL x y [c]) yes no) |
| (NE (CMPconst [0] l:(ANDshiftRL x y [c])) yes no) && l.Uses==1 -> (NE (TSTshiftRL x y [c]) yes no) |
| (NE (CMPconst [0] l:(ANDshiftRA x y [c])) yes no) && l.Uses==1 -> (NE (TSTshiftRA x y [c]) yes no) |
| (NE (CMPconst [0] l:(ANDshiftLLreg x y z)) yes no) && l.Uses==1 -> (NE (TSTshiftLLreg x y z) yes no) |
| (NE (CMPconst [0] l:(ANDshiftRLreg x y z)) yes no) && l.Uses==1 -> (NE (TSTshiftRLreg x y z) yes no) |
| (NE (CMPconst [0] l:(ANDshiftRAreg x y z)) yes no) && l.Uses==1 -> (NE (TSTshiftRAreg x y z) yes no) |
| (EQ (CMPconst [0] l:(XOR x y)) yes no) && l.Uses==1 -> (EQ (TEQ x y) yes no) |
| (EQ (CMPconst [0] l:(XORconst [c] x)) yes no) && l.Uses==1 -> (EQ (TEQconst [c] x) yes no) |
| (EQ (CMPconst [0] l:(XORshiftLL x y [c])) yes no) && l.Uses==1 -> (EQ (TEQshiftLL x y [c]) yes no) |
| (EQ (CMPconst [0] l:(XORshiftRL x y [c])) yes no) && l.Uses==1 -> (EQ (TEQshiftRL x y [c]) yes no) |
| (EQ (CMPconst [0] l:(XORshiftRA x y [c])) yes no) && l.Uses==1 -> (EQ (TEQshiftRA x y [c]) yes no) |
| (EQ (CMPconst [0] l:(XORshiftLLreg x y z)) yes no) && l.Uses==1 -> (EQ (TEQshiftLLreg x y z) yes no) |
| (EQ (CMPconst [0] l:(XORshiftRLreg x y z)) yes no) && l.Uses==1 -> (EQ (TEQshiftRLreg x y z) yes no) |
| (EQ (CMPconst [0] l:(XORshiftRAreg x y z)) yes no) && l.Uses==1 -> (EQ (TEQshiftRAreg x y z) yes no) |
| (NE (CMPconst [0] l:(XOR x y)) yes no) && l.Uses==1 -> (NE (TEQ x y) yes no) |
| (NE (CMPconst [0] l:(XORconst [c] x)) yes no) && l.Uses==1 -> (NE (TEQconst [c] x) yes no) |
| (NE (CMPconst [0] l:(XORshiftLL x y [c])) yes no) && l.Uses==1 -> (NE (TEQshiftLL x y [c]) yes no) |
| (NE (CMPconst [0] l:(XORshiftRL x y [c])) yes no) && l.Uses==1 -> (NE (TEQshiftRL x y [c]) yes no) |
| (NE (CMPconst [0] l:(XORshiftRA x y [c])) yes no) && l.Uses==1 -> (NE (TEQshiftRA x y [c]) yes no) |
| (NE (CMPconst [0] l:(XORshiftLLreg x y z)) yes no) && l.Uses==1 -> (NE (TEQshiftLLreg x y z) yes no) |
| (NE (CMPconst [0] l:(XORshiftRLreg x y z)) yes no) && l.Uses==1 -> (NE (TEQshiftRLreg x y z) yes no) |
| (NE (CMPconst [0] l:(XORshiftRAreg x y z)) yes no) && l.Uses==1 -> (NE (TEQshiftRAreg x y z) yes no) |
| (LT (CMPconst [0] l:(SUB x y)) yes no) && l.Uses==1 -> (LT (CMP x y) yes no) |
| (LT (CMPconst [0] l:(MULS x y a)) yes no) && l.Uses==1 -> (LT (CMP a (MUL <x.Type> x y)) yes no) |
| (LT (CMPconst [0] l:(SUBconst [c] x)) yes no) && l.Uses==1 -> (LT (CMPconst [c] x) yes no) |
| (LT (CMPconst [0] l:(SUBshiftLL x y [c])) yes no) && l.Uses==1 -> (LT (CMPshiftLL x y [c]) yes no) |
| (LT (CMPconst [0] l:(SUBshiftRL x y [c])) yes no) && l.Uses==1 -> (LT (CMPshiftRL x y [c]) yes no) |
| (LT (CMPconst [0] l:(SUBshiftRA x y [c])) yes no) && l.Uses==1 -> (LT (CMPshiftRA x y [c]) yes no) |
| (LT (CMPconst [0] l:(SUBshiftLLreg x y z)) yes no) && l.Uses==1 -> (LT (CMPshiftLLreg x y z) yes no) |
| (LT (CMPconst [0] l:(SUBshiftRLreg x y z)) yes no) && l.Uses==1 -> (LT (CMPshiftRLreg x y z) yes no) |
| (LT (CMPconst [0] l:(SUBshiftRAreg x y z)) yes no) && l.Uses==1 -> (LT (CMPshiftRAreg x y z) yes no) |
| (LE (CMPconst [0] l:(SUB x y)) yes no) && l.Uses==1 -> (LE (CMP x y) yes no) |
| (LE (CMPconst [0] l:(MULS x y a)) yes no) && l.Uses==1 -> (LE (CMP a (MUL <x.Type> x y)) yes no) |
| (LE (CMPconst [0] l:(SUBconst [c] x)) yes no) && l.Uses==1 -> (LE (CMPconst [c] x) yes no) |
| (LE (CMPconst [0] l:(SUBshiftLL x y [c])) yes no) && l.Uses==1 -> (LE (CMPshiftLL x y [c]) yes no) |
| (LE (CMPconst [0] l:(SUBshiftRL x y [c])) yes no) && l.Uses==1 -> (LE (CMPshiftRL x y [c]) yes no) |
| (LE (CMPconst [0] l:(SUBshiftRA x y [c])) yes no) && l.Uses==1 -> (LE (CMPshiftRA x y [c]) yes no) |
| (LE (CMPconst [0] l:(SUBshiftLLreg x y z)) yes no) && l.Uses==1 -> (LE (CMPshiftLLreg x y z) yes no) |
| (LE (CMPconst [0] l:(SUBshiftRLreg x y z)) yes no) && l.Uses==1 -> (LE (CMPshiftRLreg x y z) yes no) |
| (LE (CMPconst [0] l:(SUBshiftRAreg x y z)) yes no) && l.Uses==1 -> (LE (CMPshiftRAreg x y z) yes no) |
| (LT (CMPconst [0] l:(ADD x y)) yes no) && l.Uses==1 -> (LT (CMN x y) yes no) |
| (LT (CMPconst [0] l:(MULA x y a)) yes no) && l.Uses==1 -> (LT (CMN a (MUL <x.Type> x y)) yes no) |
| (LT (CMPconst [0] l:(ADDconst [c] x)) yes no) && l.Uses==1 -> (LT (CMNconst [c] x) yes no) |
| (LT (CMPconst [0] l:(ADDshiftLL x y [c])) yes no) && l.Uses==1 -> (LT (CMNshiftLL x y [c]) yes no) |
| (LT (CMPconst [0] l:(ADDshiftRL x y [c])) yes no) && l.Uses==1 -> (LT (CMNshiftRL x y [c]) yes no) |
| (LT (CMPconst [0] l:(ADDshiftRA x y [c])) yes no) && l.Uses==1 -> (LT (CMNshiftRA x y [c]) yes no) |
| (LT (CMPconst [0] l:(ADDshiftLLreg x y z)) yes no) && l.Uses==1 -> (LT (CMNshiftLLreg x y z) yes no) |
| (LT (CMPconst [0] l:(ADDshiftRLreg x y z)) yes no) && l.Uses==1 -> (LT (CMNshiftRLreg x y z) yes no) |
| (LT (CMPconst [0] l:(ADDshiftRAreg x y z)) yes no) && l.Uses==1 -> (LT (CMNshiftRAreg x y z) yes no) |
| (LE (CMPconst [0] l:(ADD x y)) yes no) && l.Uses==1 -> (LE (CMN x y) yes no) |
| (LE (CMPconst [0] l:(MULA x y a)) yes no) && l.Uses==1 -> (LE (CMN a (MUL <x.Type> x y)) yes no) |
| (LE (CMPconst [0] l:(ADDconst [c] x)) yes no) && l.Uses==1 -> (LE (CMNconst [c] x) yes no) |
| (LE (CMPconst [0] l:(ADDshiftLL x y [c])) yes no) && l.Uses==1 -> (LE (CMNshiftLL x y [c]) yes no) |
| (LE (CMPconst [0] l:(ADDshiftRL x y [c])) yes no) && l.Uses==1 -> (LE (CMNshiftRL x y [c]) yes no) |
| (LE (CMPconst [0] l:(ADDshiftRA x y [c])) yes no) && l.Uses==1 -> (LE (CMNshiftRA x y [c]) yes no) |
| (LE (CMPconst [0] l:(ADDshiftLLreg x y z)) yes no) && l.Uses==1 -> (LE (CMNshiftLLreg x y z) yes no) |
| (LE (CMPconst [0] l:(ADDshiftRLreg x y z)) yes no) && l.Uses==1 -> (LE (CMNshiftRLreg x y z) yes no) |
| (LE (CMPconst [0] l:(ADDshiftRAreg x y z)) yes no) && l.Uses==1 -> (LE (CMNshiftRAreg x y z) yes no) |
| (LT (CMPconst [0] l:(AND x y)) yes no) && l.Uses==1 -> (LT (TST x y) yes no) |
| (LT (CMPconst [0] l:(ANDconst [c] x)) yes no) && l.Uses==1 -> (LT (TSTconst [c] x) yes no) |
| (LT (CMPconst [0] l:(ANDshiftLL x y [c])) yes no) && l.Uses==1 -> (LT (TSTshiftLL x y [c]) yes no) |
| (LT (CMPconst [0] l:(ANDshiftRL x y [c])) yes no) && l.Uses==1 -> (LT (TSTshiftRL x y [c]) yes no) |
| (LT (CMPconst [0] l:(ANDshiftRA x y [c])) yes no) && l.Uses==1 -> (LT (TSTshiftRA x y [c]) yes no) |
| (LT (CMPconst [0] l:(ANDshiftLLreg x y z)) yes no) && l.Uses==1 -> (LT (TSTshiftLLreg x y z) yes no) |
| (LT (CMPconst [0] l:(ANDshiftRLreg x y z)) yes no) && l.Uses==1 -> (LT (TSTshiftRLreg x y z) yes no) |
| (LT (CMPconst [0] l:(ANDshiftRAreg x y z)) yes no) && l.Uses==1 -> (LT (TSTshiftRAreg x y z) yes no) |
| (LE (CMPconst [0] l:(AND x y)) yes no) && l.Uses==1 -> (LE (TST x y) yes no) |
| (LE (CMPconst [0] l:(ANDconst [c] x)) yes no) && l.Uses==1 -> (LE (TSTconst [c] x) yes no) |
| (LE (CMPconst [0] l:(ANDshiftLL x y [c])) yes no) && l.Uses==1 -> (LE (TSTshiftLL x y [c]) yes no) |
| (LE (CMPconst [0] l:(ANDshiftRL x y [c])) yes no) && l.Uses==1 -> (LE (TSTshiftRL x y [c]) yes no) |
| (LE (CMPconst [0] l:(ANDshiftRA x y [c])) yes no) && l.Uses==1 -> (LE (TSTshiftRA x y [c]) yes no) |
| (LE (CMPconst [0] l:(ANDshiftLLreg x y z)) yes no) && l.Uses==1 -> (LE (TSTshiftLLreg x y z) yes no) |
| (LE (CMPconst [0] l:(ANDshiftRLreg x y z)) yes no) && l.Uses==1 -> (LE (TSTshiftRLreg x y z) yes no) |
| (LE (CMPconst [0] l:(ANDshiftRAreg x y z)) yes no) && l.Uses==1 -> (LE (TSTshiftRAreg x y z) yes no) |
| (LT (CMPconst [0] l:(XOR x y)) yes no) && l.Uses==1 -> (LT (TEQ x y) yes no) |
| (LT (CMPconst [0] l:(XORconst [c] x)) yes no) && l.Uses==1 -> (LT (TEQconst [c] x) yes no) |
| (LT (CMPconst [0] l:(XORshiftLL x y [c])) yes no) && l.Uses==1 -> (LT (TEQshiftLL x y [c]) yes no) |
| (LT (CMPconst [0] l:(XORshiftRL x y [c])) yes no) && l.Uses==1 -> (LT (TEQshiftRL x y [c]) yes no) |
| (LT (CMPconst [0] l:(XORshiftRA x y [c])) yes no) && l.Uses==1 -> (LT (TEQshiftRA x y [c]) yes no) |
| (LT (CMPconst [0] l:(XORshiftLLreg x y z)) yes no) && l.Uses==1 -> (LT (TEQshiftLLreg x y z) yes no) |
| (LT (CMPconst [0] l:(XORshiftRLreg x y z)) yes no) && l.Uses==1 -> (LT (TEQshiftRLreg x y z) yes no) |
| (LT (CMPconst [0] l:(XORshiftRAreg x y z)) yes no) && l.Uses==1 -> (LT (TEQshiftRAreg x y z) yes no) |
| (LE (CMPconst [0] l:(XOR x y)) yes no) && l.Uses==1 -> (LE (TEQ x y) yes no) |
| (LE (CMPconst [0] l:(XORconst [c] x)) yes no) && l.Uses==1 -> (LE (TEQconst [c] x) yes no) |
| (LE (CMPconst [0] l:(XORshiftLL x y [c])) yes no) && l.Uses==1 -> (LE (TEQshiftLL x y [c]) yes no) |
| (LE (CMPconst [0] l:(XORshiftRL x y [c])) yes no) && l.Uses==1 -> (LE (TEQshiftRL x y [c]) yes no) |
| (LE (CMPconst [0] l:(XORshiftRA x y [c])) yes no) && l.Uses==1 -> (LE (TEQshiftRA x y [c]) yes no) |
| (LE (CMPconst [0] l:(XORshiftLLreg x y z)) yes no) && l.Uses==1 -> (LE (TEQshiftLLreg x y z) yes no) |
| (LE (CMPconst [0] l:(XORshiftRLreg x y z)) yes no) && l.Uses==1 -> (LE (TEQshiftRLreg x y z) yes no) |
| (LE (CMPconst [0] l:(XORshiftRAreg x y z)) yes no) && l.Uses==1 -> (LE (TEQshiftRAreg x y z) yes no) |
| (GT (CMPconst [0] l:(SUB x y)) yes no) && l.Uses==1 -> (GT (CMP x y) yes no) |
| (GT (CMPconst [0] l:(MULS x y a)) yes no) && l.Uses==1 -> (GT (CMP a (MUL <x.Type> x y)) yes no) |
| (GT (CMPconst [0] l:(SUBconst [c] x)) yes no) && l.Uses==1 -> (GT (CMPconst [c] x) yes no) |
| (GT (CMPconst [0] l:(SUBshiftLL x y [c])) yes no) && l.Uses==1 -> (GT (CMPshiftLL x y [c]) yes no) |
| (GT (CMPconst [0] l:(SUBshiftRL x y [c])) yes no) && l.Uses==1 -> (GT (CMPshiftRL x y [c]) yes no) |
| (GT (CMPconst [0] l:(SUBshiftRA x y [c])) yes no) && l.Uses==1 -> (GT (CMPshiftRA x y [c]) yes no) |
| (GT (CMPconst [0] l:(SUBshiftLLreg x y z)) yes no) && l.Uses==1 -> (GT (CMPshiftLLreg x y z) yes no) |
| (GT (CMPconst [0] l:(SUBshiftRLreg x y z)) yes no) && l.Uses==1 -> (GT (CMPshiftRLreg x y z) yes no) |
| (GT (CMPconst [0] l:(SUBshiftRAreg x y z)) yes no) && l.Uses==1 -> (GT (CMPshiftRAreg x y z) yes no) |
| (GE (CMPconst [0] l:(SUB x y)) yes no) && l.Uses==1 -> (GE (CMP x y) yes no) |
| (GE (CMPconst [0] l:(MULS x y a)) yes no) && l.Uses==1 -> (GE (CMP a (MUL <x.Type> x y)) yes no) |
| (GE (CMPconst [0] l:(SUBconst [c] x)) yes no) && l.Uses==1 -> (GE (CMPconst [c] x) yes no) |
| (GE (CMPconst [0] l:(SUBshiftLL x y [c])) yes no) && l.Uses==1 -> (GE (CMPshiftLL x y [c]) yes no) |
| (GE (CMPconst [0] l:(SUBshiftRL x y [c])) yes no) && l.Uses==1 -> (GE (CMPshiftRL x y [c]) yes no) |
| (GE (CMPconst [0] l:(SUBshiftRA x y [c])) yes no) && l.Uses==1 -> (GE (CMPshiftRA x y [c]) yes no) |
| (GE (CMPconst [0] l:(SUBshiftLLreg x y z)) yes no) && l.Uses==1 -> (GE (CMPshiftLLreg x y z) yes no) |
| (GE (CMPconst [0] l:(SUBshiftRLreg x y z)) yes no) && l.Uses==1 -> (GE (CMPshiftRLreg x y z) yes no) |
| (GE (CMPconst [0] l:(SUBshiftRAreg x y z)) yes no) && l.Uses==1 -> (GE (CMPshiftRAreg x y z) yes no) |
| (GT (CMPconst [0] l:(ADD x y)) yes no) && l.Uses==1 -> (GT (CMN x y) yes no) |
| (GT (CMPconst [0] l:(ADDconst [c] x)) yes no) && l.Uses==1 -> (GT (CMNconst [c] x) yes no) |
| (GT (CMPconst [0] l:(ADDshiftLL x y [c])) yes no) && l.Uses==1 -> (GT (CMNshiftLL x y [c]) yes no) |
| (GT (CMPconst [0] l:(ADDshiftRL x y [c])) yes no) && l.Uses==1 -> (GT (CMNshiftRL x y [c]) yes no) |
| (GT (CMPconst [0] l:(ADDshiftRA x y [c])) yes no) && l.Uses==1 -> (GT (CMNshiftRA x y [c]) yes no) |
| (GT (CMPconst [0] l:(ADDshiftLLreg x y z)) yes no) && l.Uses==1 -> (GT (CMNshiftLLreg x y z) yes no) |
| (GT (CMPconst [0] l:(ADDshiftRLreg x y z)) yes no) && l.Uses==1 -> (GT (CMNshiftRLreg x y z) yes no) |
| (GT (CMPconst [0] l:(ADDshiftRAreg x y z)) yes no) && l.Uses==1 -> (GT (CMNshiftRAreg x y z) yes no) |
| (GE (CMPconst [0] l:(ADD x y)) yes no) && l.Uses==1 -> (GE (CMN x y) yes no) |
| (GE (CMPconst [0] l:(MULA x y a)) yes no) && l.Uses==1 -> (GE (CMN a (MUL <x.Type> x y)) yes no) |
| (GE (CMPconst [0] l:(ADDconst [c] x)) yes no) && l.Uses==1 -> (GE (CMNconst [c] x) yes no) |
| (GE (CMPconst [0] l:(ADDshiftLL x y [c])) yes no) && l.Uses==1 -> (GE (CMNshiftLL x y [c]) yes no) |
| (GE (CMPconst [0] l:(ADDshiftRL x y [c])) yes no) && l.Uses==1 -> (GE (CMNshiftRL x y [c]) yes no) |
| (GE (CMPconst [0] l:(ADDshiftRA x y [c])) yes no) && l.Uses==1 -> (GE (CMNshiftRA x y [c]) yes no) |
| (GE (CMPconst [0] l:(ADDshiftLLreg x y z)) yes no) && l.Uses==1 -> (GE (CMNshiftLLreg x y z) yes no) |
| (GE (CMPconst [0] l:(ADDshiftRLreg x y z)) yes no) && l.Uses==1 -> (GE (CMNshiftRLreg x y z) yes no) |
| (GE (CMPconst [0] l:(ADDshiftRAreg x y z)) yes no) && l.Uses==1 -> (GE (CMNshiftRAreg x y z) yes no) |
| (GT (CMPconst [0] l:(AND x y)) yes no) && l.Uses==1 -> (GT (TST x y) yes no) |
| (GT (CMPconst [0] l:(MULA x y a)) yes no) && l.Uses==1 -> (GT (CMN a (MUL <x.Type> x y)) yes no) |
| (GT (CMPconst [0] l:(ANDconst [c] x)) yes no) && l.Uses==1 -> (GT (TSTconst [c] x) yes no) |
| (GT (CMPconst [0] l:(ANDshiftLL x y [c])) yes no) && l.Uses==1 -> (GT (TSTshiftLL x y [c]) yes no) |
| (GT (CMPconst [0] l:(ANDshiftRL x y [c])) yes no) && l.Uses==1 -> (GT (TSTshiftRL x y [c]) yes no) |
| (GT (CMPconst [0] l:(ANDshiftRA x y [c])) yes no) && l.Uses==1 -> (GT (TSTshiftRA x y [c]) yes no) |
| (GT (CMPconst [0] l:(ANDshiftLLreg x y z)) yes no) && l.Uses==1 -> (GT (TSTshiftLLreg x y z) yes no) |
| (GT (CMPconst [0] l:(ANDshiftRLreg x y z)) yes no) && l.Uses==1 -> (GT (TSTshiftRLreg x y z) yes no) |
| (GT (CMPconst [0] l:(ANDshiftRAreg x y z)) yes no) && l.Uses==1 -> (GT (TSTshiftRAreg x y z) yes no) |
| (GE (CMPconst [0] l:(AND x y)) yes no) && l.Uses==1 -> (GE (TST x y) yes no) |
| (GE (CMPconst [0] l:(ANDconst [c] x)) yes no) && l.Uses==1 -> (GE (TSTconst [c] x) yes no) |
| (GE (CMPconst [0] l:(ANDshiftLL x y [c])) yes no) && l.Uses==1 -> (GE (TSTshiftLL x y [c]) yes no) |
| (GE (CMPconst [0] l:(ANDshiftRL x y [c])) yes no) && l.Uses==1 -> (GE (TSTshiftRL x y [c]) yes no) |
| (GE (CMPconst [0] l:(ANDshiftRA x y [c])) yes no) && l.Uses==1 -> (GE (TSTshiftRA x y [c]) yes no) |
| (GE (CMPconst [0] l:(ANDshiftLLreg x y z)) yes no) && l.Uses==1 -> (GE (TSTshiftLLreg x y z) yes no) |
| (GE (CMPconst [0] l:(ANDshiftRLreg x y z)) yes no) && l.Uses==1 -> (GE (TSTshiftRLreg x y z) yes no) |
| (GE (CMPconst [0] l:(ANDshiftRAreg x y z)) yes no) && l.Uses==1 -> (GE (TSTshiftRAreg x y z) yes no) |
| (GT (CMPconst [0] l:(XOR x y)) yes no) && l.Uses==1 -> (GT (TEQ x y) yes no) |
| (GT (CMPconst [0] l:(XORconst [c] x)) yes no) && l.Uses==1 -> (GT (TEQconst [c] x) yes no) |
| (GT (CMPconst [0] l:(XORshiftLL x y [c])) yes no) && l.Uses==1 -> (GT (TEQshiftLL x y [c]) yes no) |
| (GT (CMPconst [0] l:(XORshiftRL x y [c])) yes no) && l.Uses==1 -> (GT (TEQshiftRL x y [c]) yes no) |
| (GT (CMPconst [0] l:(XORshiftRA x y [c])) yes no) && l.Uses==1 -> (GT (TEQshiftRA x y [c]) yes no) |
| (GT (CMPconst [0] l:(XORshiftLLreg x y z)) yes no) && l.Uses==1 -> (GT (TEQshiftLLreg x y z) yes no) |
| (GT (CMPconst [0] l:(XORshiftRLreg x y z)) yes no) && l.Uses==1 -> (GT (TEQshiftRLreg x y z) yes no) |
| (GT (CMPconst [0] l:(XORshiftRAreg x y z)) yes no) && l.Uses==1 -> (GT (TEQshiftRAreg x y z) yes no) |
| (GE (CMPconst [0] l:(XOR x y)) yes no) && l.Uses==1 -> (GE (TEQ x y) yes no) |
| (GE (CMPconst [0] l:(XORconst [c] x)) yes no) && l.Uses==1 -> (GE (TEQconst [c] x) yes no) |
| (GE (CMPconst [0] l:(XORshiftLL x y [c])) yes no) && l.Uses==1 -> (GE (TEQshiftLL x y [c]) yes no) |
| (GE (CMPconst [0] l:(XORshiftRL x y [c])) yes no) && l.Uses==1 -> (GE (TEQshiftRL x y [c]) yes no) |
| (GE (CMPconst [0] l:(XORshiftRA x y [c])) yes no) && l.Uses==1 -> (GE (TEQshiftRA x y [c]) yes no) |
| (GE (CMPconst [0] l:(XORshiftLLreg x y z)) yes no) && l.Uses==1 -> (GE (TEQshiftLLreg x y z) yes no) |
| (GE (CMPconst [0] l:(XORshiftRLreg x y z)) yes no) && l.Uses==1 -> (GE (TEQshiftRLreg x y z) yes no) |
| (GE (CMPconst [0] l:(XORshiftRAreg x y z)) yes no) && l.Uses==1 -> (GE (TEQshiftRAreg x y z) yes no) |
| |
| (MOVBUload [off] {sym} (SB) _) && symIsRO(sym) -> (MOVWconst [int64(read8(sym, off))]) |
| (MOVHUload [off] {sym} (SB) _) && symIsRO(sym) -> (MOVWconst [int64(read16(sym, off, config.BigEndian))]) |
| (MOVWload [off] {sym} (SB) _) && symIsRO(sym) -> (MOVWconst [int64(int32(read32(sym, off, config.BigEndian)))]) |
