| // 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) ...) => (ADD ...) |
| (Add(32|64)F ...) => (ADD(F|D) ...) |
| (Add32carry ...) => (ADDS ...) |
| (Add32withcarry ...) => (ADC ...) |
| |
| (Sub(Ptr|32|16|8) ...) => (SUB ...) |
| (Sub(32|64)F ...) => (SUB(F|D) ...) |
| (Sub32carry ...) => (SUBS ...) |
| (Sub32withcarry ...) => (SBC ...) |
| |
| (Mul(32|16|8) ...) => (MUL ...) |
| (Mul(32|64)F ...) => (MUL(F|D) ...) |
| (Hmul(32|32u) ...) => (HMU(L|LU) ...) |
| (Mul32uhilo ...) => (MULLU ...) |
| |
| (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 ...) => (DIV(F|D) ...) |
| |
| (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) ...) => (AND ...) |
| (Or(32|16|8) ...) => (OR ...) |
| (Xor(32|16|8) ...) => (XOR ...) |
| |
| // unary ops |
| (Neg(32|16|8) x) => (RSBconst [0] x) |
| (Neg(32|64)F ...) => (NEG(F|D) ...) |
| |
| (Com(32|16|8) ...) => (MVN ...) |
| |
| (Sqrt ...) => (SQRTD ...) |
| (Sqrt32 ...) => (SQRTF ...) |
| (Abs ...) => (ABSD ...) |
| |
| // TODO: optimize this for ARMv5 and ARMv6 |
| (Ctz32NonZero ...) => (Ctz32 ...) |
| (Ctz16NonZero ...) => (Ctz32 ...) |
| (Ctz8NonZero ...) => (Ctz32 ...) |
| |
| // count trailing zero for ARMv5 and ARMv6 |
| // 32 - CLZ(x&-x - 1) |
| (Ctz32 <t> x) && buildcfg.GOARM<=6 => |
| (RSBconst [32] (CLZ <t> (SUBconst <t> (AND <t> x (RSBconst <t> [0] x)) [1]))) |
| (Ctz16 <t> x) && buildcfg.GOARM<=6 => |
| (RSBconst [32] (CLZ <t> (SUBconst <typ.UInt32> (AND <typ.UInt32> (ORconst <typ.UInt32> [0x10000] x) (RSBconst <typ.UInt32> [0] (ORconst <typ.UInt32> [0x10000] x))) [1]))) |
| (Ctz8 <t> x) && buildcfg.GOARM<=6 => |
| (RSBconst [32] (CLZ <t> (SUBconst <typ.UInt32> (AND <typ.UInt32> (ORconst <typ.UInt32> [0x100] x) (RSBconst <typ.UInt32> [0] (ORconst <typ.UInt32> [0x100] x))) [1]))) |
| |
| // count trailing zero for ARMv7 |
| (Ctz32 <t> x) && buildcfg.GOARM==7 => (CLZ <t> (RBIT <t> x)) |
| (Ctz16 <t> x) && buildcfg.GOARM==7 => (CLZ <t> (RBIT <typ.UInt32> (ORconst <typ.UInt32> [0x10000] x))) |
| (Ctz8 <t> x) && buildcfg.GOARM==7 => (CLZ <t> (RBIT <typ.UInt32> (ORconst <typ.UInt32> [0x100] 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) && buildcfg.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) && buildcfg.GOARM>=6 => (REV x) |
| |
| // boolean ops -- booleans are represented with 0=false, 1=true |
| (AndB ...) => (AND ...) |
| (OrB ...) => (OR ...) |
| (EqB x y) => (XORconst [1] (XOR <typ.Bool> x y)) |
| (NeqB ...) => (XOR ...) |
| (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 [int32(c)]) |
| (Rsh32x64 x (Const64 [c])) && uint64(c) < 32 => (SRAconst x [int32(c)]) |
| (Rsh32Ux64 x (Const64 [c])) && uint64(c) < 32 => (SRLconst x [int32(c)]) |
| (Lsh16x64 x (Const64 [c])) && uint64(c) < 16 => (SLLconst x [int32(c)]) |
| (Rsh16x64 x (Const64 [c])) && uint64(c) < 16 => (SRAconst (SLLconst <typ.UInt32> x [16]) [int32(c+16)]) |
| (Rsh16Ux64 x (Const64 [c])) && uint64(c) < 16 => (SRLconst (SLLconst <typ.UInt32> x [16]) [int32(c+16)]) |
| (Lsh8x64 x (Const64 [c])) && uint64(c) < 8 => (SLLconst x [int32(c)]) |
| (Rsh8x64 x (Const64 [c])) && uint64(c) < 8 => (SRAconst (SLLconst <typ.UInt32> x [24]) [int32(c+24)]) |
| (Rsh8Ux64 x (Const64 [c])) && uint64(c) < 8 => (SRLconst (SLLconst <typ.UInt32> x [24]) [int32(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 |
| (Const(8|16|32) [val]) => (MOVWconst [int32(val)]) |
| (Const(32|64)F [val]) => (MOV(F|D)const [float64(val)]) |
| (ConstNil) => (MOVWconst [0]) |
| (ConstBool [t]) => (MOVWconst [b2i32(t)]) |
| |
| // truncations |
| // Because we ignore high parts of registers, truncates are just copies. |
| (Trunc16to8 ...) => (Copy ...) |
| (Trunc32to8 ...) => (Copy ...) |
| (Trunc32to16 ...) => (Copy ...) |
| |
| // Zero-/Sign-extensions |
| (ZeroExt8to16 ...) => (MOVBUreg ...) |
| (ZeroExt8to32 ...) => (MOVBUreg ...) |
| (ZeroExt16to32 ...) => (MOVHUreg ...) |
| |
| (SignExt8to16 ...) => (MOVBreg ...) |
| (SignExt8to32 ...) => (MOVBreg ...) |
| (SignExt16to32 ...) => (MOVHreg ...) |
| |
| (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 ...) => (MOVWF ...) |
| (Cvt32to64F ...) => (MOVWD ...) |
| (Cvt32Uto32F ...) => (MOVWUF ...) |
| (Cvt32Uto64F ...) => (MOVWUD ...) |
| (Cvt32Fto32 ...) => (MOVFW ...) |
| (Cvt64Fto32 ...) => (MOVDW ...) |
| (Cvt32Fto32U ...) => (MOVFWU ...) |
| (Cvt64Fto32U ...) => (MOVDWU ...) |
| (Cvt32Fto64F ...) => (MOVFD ...) |
| (Cvt64Fto32F ...) => (MOVDF ...) |
| |
| (Round(32|64)F ...) => (Copy ...) |
| |
| (CvtBoolToUint8 ...) => (Copy ...) |
| |
| // fused-multiply-add |
| (FMA x y z) => (FMULAD z x y) |
| |
| // 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)) |
| |
| (OffPtr [off] ptr:(SP)) => (MOVWaddr [int32(off)] ptr) |
| (OffPtr [off] ptr) => (ADDconst [int32(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.Size() == 1 => (MOVBstore ptr val mem) |
| (Store {t} ptr val mem) && t.Size() == 2 => (MOVHstore ptr val mem) |
| (Store {t} ptr val mem) && t.Size() == 4 && !is32BitFloat(val.Type) => (MOVWstore ptr val mem) |
| (Store {t} ptr val mem) && t.Size() == 4 && is32BitFloat(val.Type) => (MOVFstore ptr val mem) |
| (Store {t} ptr val mem) && t.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.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.Alignment()%4 == 0 => |
| (MOVWstore ptr (MOVWconst [0]) mem) |
| (Zero [4] {t} ptr mem) && t.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.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.Alignment()%4 != 0 => |
| (LoweredZero [t.Alignment()] |
| ptr |
| (ADDconst <ptr.Type> ptr [int32(s-moveSize(t.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.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.Alignment()%4 == 0 => |
| (MOVWstore dst (MOVWload src mem) mem) |
| (Move [4] {t} dst src mem) && t.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.Alignment()%4 == 0 && !config.noDuffDevice && logLargeCopy(v, s) => |
| (DUFFCOPY [8 * (128 - s/4)] dst src mem) |
| |
| // Large move uses a loop |
| (Move [s] {t} dst src mem) |
| && ((s > 512 || config.noDuffDevice) || t.Alignment()%4 != 0) && logLargeCopy(v, s) => |
| (LoweredMove [t.Alignment()] |
| dst |
| src |
| (ADDconst <src.Type> src [int32(s-moveSize(t.Alignment(), config))]) |
| mem) |
| |
| // calls |
| (StaticCall ...) => (CALLstatic ...) |
| (ClosureCall ...) => (CALLclosure ...) |
| (InterCall ...) => (CALLinter ...) |
| (TailCall ...) => (CALLtail ...) |
| |
| // checks |
| (NilCheck ...) => (LoweredNilCheck ...) |
| (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 ...) => (LoweredWB ...) |
| |
| (PanicBounds [kind] x y mem) && boundsABI(kind) == 0 => (LoweredPanicBoundsA [kind] x y mem) |
| (PanicBounds [kind] x y mem) && boundsABI(kind) == 1 => (LoweredPanicBoundsB [kind] x y mem) |
| (PanicBounds [kind] x y mem) && boundsABI(kind) == 2 => (LoweredPanicBoundsC [kind] x y mem) |
| |
| (PanicExtend [kind] hi lo y mem) && boundsABI(kind) == 0 => (LoweredPanicExtendA [kind] hi lo y mem) |
| (PanicExtend [kind] hi lo y mem) && boundsABI(kind) == 1 => (LoweredPanicExtendB [kind] hi lo y mem) |
| (PanicExtend [kind] hi lo y mem) && boundsABI(kind) == 2 => (LoweredPanicExtendC [kind] hi lo y 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 arithmetic 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) |
| (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])) && 0 <= c && c < 32 => (SLLconst x [c]) |
| (SRL x (MOVWconst [c])) && 0 <= c && c < 32 => (SRLconst x [c]) |
| (SRA x (MOVWconst [c])) && 0 <= c && c < 32 => (SRAconst x [c]) |
| |
| (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) |
| |
| (SRR x (MOVWconst [c])) => (SRRconst x [c&31]) |
| |
| // Canonicalize the order of arguments to comparisons - helps with CSE. |
| (CMP x y) && canonLessThan(x,y) => (InvertFlags (CMP y 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) |
| |
| // TODO: we should be able to get rid of MOVWnop all together. |
| // But for now, this is enough to get rid of lots of them. |
| (MOVWnop (MOVWconst [c])) => (MOVWconst [c]) |
| |
| // 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])) && isPowerOfTwo32(c) => (SLLconst [int32(log32(c))] x) |
| (MUL x (MOVWconst [c])) && isPowerOfTwo32(c-1) && c >= 3 => (ADDshiftLL x x [int32(log32(c-1))]) |
| (MUL x (MOVWconst [c])) && isPowerOfTwo32(c+1) && c >= 7 => (RSBshiftLL x x [int32(log32(c+1))]) |
| (MUL x (MOVWconst [c])) && c%3 == 0 && isPowerOfTwo32(c/3) => (SLLconst [int32(log32(c/3))] (ADDshiftLL <x.Type> x x [1])) |
| (MUL x (MOVWconst [c])) && c%5 == 0 && isPowerOfTwo32(c/5) => (SLLconst [int32(log32(c/5))] (ADDshiftLL <x.Type> x x [2])) |
| (MUL x (MOVWconst [c])) && c%7 == 0 && isPowerOfTwo32(c/7) => (SLLconst [int32(log32(c/7))] (RSBshiftLL <x.Type> x x [3])) |
| (MUL x (MOVWconst [c])) && c%9 == 0 && isPowerOfTwo32(c/9) => (SLLconst [int32(log32(c/9))] (ADDshiftLL <x.Type> x x [3])) |
| |
| (MULA x (MOVWconst [c]) a) && c == -1 => (SUB a x) |
| (MULA _ (MOVWconst [0]) a) => a |
| (MULA x (MOVWconst [1]) a) => (ADD x a) |
| (MULA x (MOVWconst [c]) a) && isPowerOfTwo32(c) => (ADD (SLLconst <x.Type> [int32(log32(c))] x) a) |
| (MULA x (MOVWconst [c]) a) && isPowerOfTwo32(c-1) && c >= 3 => (ADD (ADDshiftLL <x.Type> x x [int32(log32(c-1))]) a) |
| (MULA x (MOVWconst [c]) a) && isPowerOfTwo32(c+1) && c >= 7 => (ADD (RSBshiftLL <x.Type> x x [int32(log32(c+1))]) a) |
| (MULA x (MOVWconst [c]) a) && c%3 == 0 && isPowerOfTwo32(c/3) => (ADD (SLLconst <x.Type> [int32(log32(c/3))] (ADDshiftLL <x.Type> x x [1])) a) |
| (MULA x (MOVWconst [c]) a) && c%5 == 0 && isPowerOfTwo32(c/5) => (ADD (SLLconst <x.Type> [int32(log32(c/5))] (ADDshiftLL <x.Type> x x [2])) a) |
| (MULA x (MOVWconst [c]) a) && c%7 == 0 && isPowerOfTwo32(c/7) => (ADD (SLLconst <x.Type> [int32(log32(c/7))] (RSBshiftLL <x.Type> x x [3])) a) |
| (MULA x (MOVWconst [c]) a) && c%9 == 0 && isPowerOfTwo32(c/9) => (ADD (SLLconst <x.Type> [int32(log32(c/9))] (ADDshiftLL <x.Type> x x [3])) a) |
| |
| (MULA (MOVWconst [c]) x a) && c == -1 => (SUB a x) |
| (MULA (MOVWconst [0]) _ a) => a |
| (MULA (MOVWconst [1]) x a) => (ADD x a) |
| (MULA (MOVWconst [c]) x a) && isPowerOfTwo32(c) => (ADD (SLLconst <x.Type> [int32(log32(c))] x) a) |
| (MULA (MOVWconst [c]) x a) && isPowerOfTwo32(c-1) && c >= 3 => (ADD (ADDshiftLL <x.Type> x x [int32(log32(c-1))]) a) |
| (MULA (MOVWconst [c]) x a) && isPowerOfTwo32(c+1) && c >= 7 => (ADD (RSBshiftLL <x.Type> x x [int32(log32(c+1))]) a) |
| (MULA (MOVWconst [c]) x a) && c%3 == 0 && isPowerOfTwo32(c/3) => (ADD (SLLconst <x.Type> [int32(log32(c/3))] (ADDshiftLL <x.Type> x x [1])) a) |
| (MULA (MOVWconst [c]) x a) && c%5 == 0 && isPowerOfTwo32(c/5) => (ADD (SLLconst <x.Type> [int32(log32(c/5))] (ADDshiftLL <x.Type> x x [2])) a) |
| (MULA (MOVWconst [c]) x a) && c%7 == 0 && isPowerOfTwo32(c/7) => (ADD (SLLconst <x.Type> [int32(log32(c/7))] (RSBshiftLL <x.Type> x x [3])) a) |
| (MULA (MOVWconst [c]) x a) && c%9 == 0 && isPowerOfTwo32(c/9) => (ADD (SLLconst <x.Type> [int32(log32(c/9))] (ADDshiftLL <x.Type> x x [3])) a) |
| |
| (MULS x (MOVWconst [c]) a) && c == -1 => (ADD a x) |
| (MULS _ (MOVWconst [0]) a) => a |
| (MULS x (MOVWconst [1]) a) => (RSB x a) |
| (MULS x (MOVWconst [c]) a) && isPowerOfTwo32(c) => (RSB (SLLconst <x.Type> [int32(log32(c))] x) a) |
| (MULS x (MOVWconst [c]) a) && isPowerOfTwo32(c-1) && c >= 3 => (RSB (ADDshiftLL <x.Type> x x [int32(log32(c-1))]) a) |
| (MULS x (MOVWconst [c]) a) && isPowerOfTwo32(c+1) && c >= 7 => (RSB (RSBshiftLL <x.Type> x x [int32(log32(c+1))]) a) |
| (MULS x (MOVWconst [c]) a) && c%3 == 0 && isPowerOfTwo32(c/3) => (RSB (SLLconst <x.Type> [int32(log32(c/3))] (ADDshiftLL <x.Type> x x [1])) a) |
| (MULS x (MOVWconst [c]) a) && c%5 == 0 && isPowerOfTwo32(c/5) => (RSB (SLLconst <x.Type> [int32(log32(c/5))] (ADDshiftLL <x.Type> x x [2])) a) |
| (MULS x (MOVWconst [c]) a) && c%7 == 0 && isPowerOfTwo32(c/7) => (RSB (SLLconst <x.Type> [int32(log32(c/7))] (RSBshiftLL <x.Type> x x [3])) a) |
| (MULS x (MOVWconst [c]) a) && c%9 == 0 && isPowerOfTwo32(c/9) => (RSB (SLLconst <x.Type> [int32(log32(c/9))] (ADDshiftLL <x.Type> x x [3])) a) |
| |
| (MULS (MOVWconst [c]) x a) && c == -1 => (ADD a x) |
| (MULS (MOVWconst [0]) _ a) => a |
| (MULS (MOVWconst [1]) x a) => (RSB x a) |
| (MULS (MOVWconst [c]) x a) && isPowerOfTwo32(c) => (RSB (SLLconst <x.Type> [int32(log32(c))] x) a) |
| (MULS (MOVWconst [c]) x a) && isPowerOfTwo32(c-1) && c >= 3 => (RSB (ADDshiftLL <x.Type> x x [int32(log32(c-1))]) a) |
| (MULS (MOVWconst [c]) x a) && isPowerOfTwo32(c+1) && c >= 7 => (RSB (RSBshiftLL <x.Type> x x [int32(log32(c+1))]) a) |
| (MULS (MOVWconst [c]) x a) && c%3 == 0 && isPowerOfTwo32(c/3) => (RSB (SLLconst <x.Type> [int32(log32(c/3))] (ADDshiftLL <x.Type> x x [1])) a) |
| (MULS (MOVWconst [c]) x a) && c%5 == 0 && isPowerOfTwo32(c/5) => (RSB (SLLconst <x.Type> [int32(log32(c/5))] (ADDshiftLL <x.Type> x x [2])) a) |
| (MULS (MOVWconst [c]) x a) && c%7 == 0 && isPowerOfTwo32(c/7) => (RSB (SLLconst <x.Type> [int32(log32(c/7))] (RSBshiftLL <x.Type> x x [3])) a) |
| (MULS (MOVWconst [c]) x a) && c%9 == 0 && isPowerOfTwo32(c/9) => (RSB (SLLconst <x.Type> [int32(log32(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]))) && isPowerOfTwo32(c) => (SRLconst [int32(log32(c))] x) |
| (Select1 (CALLudiv x (MOVWconst [c]))) && isPowerOfTwo32(c) => (ANDconst [c-1] x) |
| |
| // constant comparisons |
| (CMPconst (MOVWconst [x]) [y]) => (FlagConstant [subFlags32(x,y)]) |
| (CMNconst (MOVWconst [x]) [y]) => (FlagConstant [addFlags32(x,y)]) |
| (TSTconst (MOVWconst [x]) [y]) => (FlagConstant [logicFlags32(x&y)]) |
| (TEQconst (MOVWconst [x]) [y]) => (FlagConstant [logicFlags32(x^y)]) |
| |
| // other known comparisons |
| (CMPconst (MOVBUreg _) [c]) && 0xff < c => (FlagConstant [subFlags32(0, 1)]) |
| (CMPconst (MOVHUreg _) [c]) && 0xffff < c => (FlagConstant [subFlags32(0, 1)]) |
| (CMPconst (ANDconst _ [m]) [n]) && 0 <= m && m < n => (FlagConstant [subFlags32(0, 1)]) |
| (CMPconst (SRLconst _ [c]) [n]) && 0 <= n && 0 < c && c <= 32 && (1<<uint32(32-c)) <= uint32(n) => (FlagConstant [subFlags32(0, 1)]) |
| |
| // absorb flag constants into branches |
| (EQ (FlagConstant [fc]) yes no) && fc.eq() => (First yes no) |
| (EQ (FlagConstant [fc]) yes no) && !fc.eq() => (First no yes) |
| |
| (NE (FlagConstant [fc]) yes no) && fc.ne() => (First yes no) |
| (NE (FlagConstant [fc]) yes no) && !fc.ne() => (First no yes) |
| |
| (LT (FlagConstant [fc]) yes no) && fc.lt() => (First yes no) |
| (LT (FlagConstant [fc]) yes no) && !fc.lt() => (First no yes) |
| |
| (LE (FlagConstant [fc]) yes no) && fc.le() => (First yes no) |
| (LE (FlagConstant [fc]) yes no) && !fc.le() => (First no yes) |
| |
| (GT (FlagConstant [fc]) yes no) && fc.gt() => (First yes no) |
| (GT (FlagConstant [fc]) yes no) && !fc.gt() => (First no yes) |
| |
| (GE (FlagConstant [fc]) yes no) && fc.ge() => (First yes no) |
| (GE (FlagConstant [fc]) yes no) && !fc.ge() => (First no yes) |
| |
| (ULT (FlagConstant [fc]) yes no) && fc.ult() => (First yes no) |
| (ULT (FlagConstant [fc]) yes no) && !fc.ult() => (First no yes) |
| |
| (ULE (FlagConstant [fc]) yes no) && fc.ule() => (First yes no) |
| (ULE (FlagConstant [fc]) yes no) && !fc.ule() => (First no yes) |
| |
| (UGT (FlagConstant [fc]) yes no) && fc.ugt() => (First yes no) |
| (UGT (FlagConstant [fc]) yes no) && !fc.ugt() => (First no yes) |
| |
| (UGE (FlagConstant [fc]) yes no) && fc.uge() => (First yes no) |
| (UGE (FlagConstant [fc]) yes no) && !fc.uge() => (First no yes) |
| |
| (LTnoov (FlagConstant [fc]) yes no) && fc.ltNoov() => (First yes no) |
| (LTnoov (FlagConstant [fc]) yes no) && !fc.ltNoov() => (First no yes) |
| |
| (LEnoov (FlagConstant [fc]) yes no) && fc.leNoov() => (First yes no) |
| (LEnoov (FlagConstant [fc]) yes no) && !fc.leNoov() => (First no yes) |
| |
| (GTnoov (FlagConstant [fc]) yes no) && fc.gtNoov() => (First yes no) |
| (GTnoov (FlagConstant [fc]) yes no) && !fc.gtNoov() => (First no yes) |
| |
| (GEnoov (FlagConstant [fc]) yes no) && fc.geNoov() => (First yes no) |
| (GEnoov (FlagConstant [fc]) yes no) && !fc.geNoov() => (First no yes) |
| |
| // 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) |
| (LTnoov (InvertFlags cmp) yes no) => (GTnoov cmp yes no) |
| (GEnoov (InvertFlags cmp) yes no) => (LEnoov cmp yes no) |
| (LEnoov (InvertFlags cmp) yes no) => (GEnoov cmp yes no) |
| (GTnoov (InvertFlags cmp) yes no) => (LTnoov cmp yes no) |
| |
| // absorb flag constants into boolean values |
| (Equal (FlagConstant [fc])) => (MOVWconst [b2i32(fc.eq())]) |
| (NotEqual (FlagConstant [fc])) => (MOVWconst [b2i32(fc.ne())]) |
| (LessThan (FlagConstant [fc])) => (MOVWconst [b2i32(fc.lt())]) |
| (LessThanU (FlagConstant [fc])) => (MOVWconst [b2i32(fc.ult())]) |
| (LessEqual (FlagConstant [fc])) => (MOVWconst [b2i32(fc.le())]) |
| (LessEqualU (FlagConstant [fc])) => (MOVWconst [b2i32(fc.ule())]) |
| (GreaterThan (FlagConstant [fc])) => (MOVWconst [b2i32(fc.gt())]) |
| (GreaterThanU (FlagConstant [fc])) => (MOVWconst [b2i32(fc.ugt())]) |
| (GreaterEqual (FlagConstant [fc])) => (MOVWconst [b2i32(fc.ge())]) |
| (GreaterEqualU (FlagConstant [fc])) => (MOVWconst [b2i32(fc.uge())]) |
| |
| // 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 _ (FlagConstant [fc]) [c]) && fc.ule() => (MOVWconst [c]) |
| (CMOVWLSconst x (FlagConstant [fc]) [c]) && fc.ugt() => x |
| |
| (CMOVWHSconst _ (FlagConstant [fc]) [c]) && fc.uge() => (MOVWconst [c]) |
| (CMOVWHSconst x (FlagConstant [fc]) [c]) && fc.ult() => x |
| |
| (CMOVWLSconst x (InvertFlags flags) [c]) => (CMOVWHSconst x flags [c]) |
| (CMOVWHSconst x (InvertFlags flags) [c]) => (CMOVWLSconst x flags [c]) |
| |
| (SRAcond x _ (FlagConstant [fc])) && fc.uge() => (SRAconst x [31]) |
| (SRAcond x y (FlagConstant [fc])) && fc.ult() => (SRA x y) |
| |
| // 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 [-c] x) |
| (SUBconst [c] x) && !isARMImmRot(uint32(c)) && isARMImmRot(uint32(-c)) => (ADDconst [-c] x) |
| (ANDconst [c] x) && !isARMImmRot(uint32(c)) && isARMImmRot(^uint32(c)) => (BICconst [int32(^uint32(c))] x) |
| (BICconst [c] x) && !isARMImmRot(uint32(c)) && isARMImmRot(^uint32(c)) => (ANDconst [int32(^uint32(c))] x) |
| (ADDconst [c] x) && buildcfg.GOARM==7 && !isARMImmRot(uint32(c)) && uint32(c)>0xffff && uint32(-c)<=0xffff => (SUBconst [-c] x) |
| (SUBconst [c] x) && buildcfg.GOARM==7 && !isARMImmRot(uint32(c)) && uint32(c)>0xffff && uint32(-c)<=0xffff => (ADDconst [-c] x) |
| (ANDconst [c] x) && buildcfg.GOARM==7 && !isARMImmRot(uint32(c)) && uint32(c)>0xffff && ^uint32(c)<=0xffff => (BICconst [int32(^uint32(c))] x) |
| (BICconst [c] x) && buildcfg.GOARM==7 && !isARMImmRot(uint32(c)) && uint32(c)>0xffff && ^uint32(c)<=0xffff => (ANDconst [int32(^uint32(c))] x) |
| (ADDconst [c] (MOVWconst [d])) => (MOVWconst [c+d]) |
| (ADDconst [c] (ADDconst [d] x)) => (ADDconst [c+d] x) |
| (ADDconst [c] (SUBconst [d] x)) => (ADDconst [c-d] x) |
| (ADDconst [c] (RSBconst [d] x)) => (RSBconst [c+d] x) |
| (ADCconst [c] (ADDconst [d] x) flags) => (ADCconst [c+d] x flags) |
| (ADCconst [c] (SUBconst [d] x) flags) => (ADCconst [c-d] x flags) |
| (SUBconst [c] (MOVWconst [d])) => (MOVWconst [d-c]) |
| (SUBconst [c] (SUBconst [d] x)) => (ADDconst [-c-d] x) |
| (SUBconst [c] (ADDconst [d] x)) => (ADDconst [-c+d] x) |
| (SUBconst [c] (RSBconst [d] x)) => (RSBconst [-c+d] x) |
| (SBCconst [c] (ADDconst [d] x) flags) => (SBCconst [c-d] x flags) |
| (SBCconst [c] (SUBconst [d] x) flags) => (SBCconst [c+d] x flags) |
| (RSBconst [c] (MOVWconst [d])) => (MOVWconst [c-d]) |
| (RSBconst [c] (RSBconst [d] x)) => (ADDconst [c-d] x) |
| (RSBconst [c] (ADDconst [d] x)) => (RSBconst [c-d] x) |
| (RSBconst [c] (SUBconst [d] x)) => (RSBconst [c+d] x) |
| (RSCconst [c] (ADDconst [d] x) flags) => (RSCconst [c-d] x flags) |
| (RSCconst [c] (SUBconst [d] x) flags) => (RSCconst [c+d] x flags) |
| (SLLconst [c] (MOVWconst [d])) => (MOVWconst [d<<uint64(c)]) |
| (SRLconst [c] (MOVWconst [d])) => (MOVWconst [int32(uint32(d)>>uint64(c))]) |
| (SRAconst [c] (MOVWconst [d])) => (MOVWconst [d>>uint64(c)]) |
| (MUL (MOVWconst [c]) (MOVWconst [d])) => (MOVWconst [c*d]) |
| (MULA (MOVWconst [c]) (MOVWconst [d]) a) => (ADDconst [c*d] a) |
| (MULS (MOVWconst [c]) (MOVWconst [d]) a) => (SUBconst [c*d] a) |
| (Select0 (CALLudiv (MOVWconst [c]) (MOVWconst [d]))) && d != 0 => (MOVWconst [int32(uint32(c)/uint32(d))]) |
| (Select1 (CALLudiv (MOVWconst [c]) (MOVWconst [d]))) && d != 0 => (MOVWconst [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 [c|d] x) |
| (MVN (MOVWconst [c])) => (MOVWconst [^c]) |
| (MOVBreg (MOVWconst [c])) => (MOVWconst [int32(int8(c))]) |
| (MOVBUreg (MOVWconst [c])) => (MOVWconst [int32(uint8(c))]) |
| (MOVHreg (MOVWconst [c])) => (MOVWconst [int32(int16(c))]) |
| (MOVHUreg (MOVWconst [c])) => (MOVWconst [int32(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 [d<<(32-uint32(c&0xff)-uint32(c>>8))>>(32-uint32(c>>8))]) |
| (BFXU [c] (MOVWconst [d])) => (MOVWconst [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 x (SRLconst [c] y) flags) => (ADCshiftRL x y [c] flags) |
| (ADC x (SRAconst [c] y) flags) => (ADCshiftRA x y [c] flags) |
| (ADC x (SLL y z) flags) => (ADCshiftLLreg x y z flags) |
| (ADC x (SRL y z) flags) => (ADCshiftRLreg x y z flags) |
| (ADC x (SRA y z) 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 [c<<uint64(d)]) |
| (ADDshiftRL x (MOVWconst [c]) [d]) => (ADDconst x [int32(uint32(c)>>uint64(d))]) |
| (ADDshiftRA x (MOVWconst [c]) [d]) => (ADDconst x [c>>uint64(d)]) |
| (ADCshiftLL x (MOVWconst [c]) [d] flags) => (ADCconst x [c<<uint64(d)] flags) |
| (ADCshiftRL x (MOVWconst [c]) [d] flags) => (ADCconst x [int32(uint32(c)>>uint64(d))] flags) |
| (ADCshiftRA x (MOVWconst [c]) [d] flags) => (ADCconst x [c>>uint64(d)] flags) |
| (ADDSshiftLL x (MOVWconst [c]) [d]) => (ADDSconst x [c<<uint64(d)]) |
| (ADDSshiftRL x (MOVWconst [c]) [d]) => (ADDSconst x [int32(uint32(c)>>uint64(d))]) |
| (ADDSshiftRA x (MOVWconst [c]) [d]) => (ADDSconst x [c>>uint64(d)]) |
| (SUBshiftLL x (MOVWconst [c]) [d]) => (SUBconst x [c<<uint64(d)]) |
| (SUBshiftRL x (MOVWconst [c]) [d]) => (SUBconst x [int32(uint32(c)>>uint64(d))]) |
| (SUBshiftRA x (MOVWconst [c]) [d]) => (SUBconst x [c>>uint64(d)]) |
| (SBCshiftLL x (MOVWconst [c]) [d] flags) => (SBCconst x [c<<uint64(d)] flags) |
| (SBCshiftRL x (MOVWconst [c]) [d] flags) => (SBCconst x [int32(uint32(c)>>uint64(d))] flags) |
| (SBCshiftRA x (MOVWconst [c]) [d] flags) => (SBCconst x [c>>uint64(d)] flags) |
| (SUBSshiftLL x (MOVWconst [c]) [d]) => (SUBSconst x [c<<uint64(d)]) |
| (SUBSshiftRL x (MOVWconst [c]) [d]) => (SUBSconst x [int32(uint32(c)>>uint64(d))]) |
| (SUBSshiftRA x (MOVWconst [c]) [d]) => (SUBSconst x [c>>uint64(d)]) |
| (RSBshiftLL x (MOVWconst [c]) [d]) => (RSBconst x [c<<uint64(d)]) |
| (RSBshiftRL x (MOVWconst [c]) [d]) => (RSBconst x [int32(uint32(c)>>uint64(d))]) |
| (RSBshiftRA x (MOVWconst [c]) [d]) => (RSBconst x [c>>uint64(d)]) |
| (RSCshiftLL x (MOVWconst [c]) [d] flags) => (RSCconst x [c<<uint64(d)] flags) |
| (RSCshiftRL x (MOVWconst [c]) [d] flags) => (RSCconst x [int32(uint32(c)>>uint64(d))] flags) |
| (RSCshiftRA x (MOVWconst [c]) [d] flags) => (RSCconst x [c>>uint64(d)] flags) |
| (RSBSshiftLL x (MOVWconst [c]) [d]) => (RSBSconst x [c<<uint64(d)]) |
| (RSBSshiftRL x (MOVWconst [c]) [d]) => (RSBSconst x [int32(uint32(c)>>uint64(d))]) |
| (RSBSshiftRA x (MOVWconst [c]) [d]) => (RSBSconst x [c>>uint64(d)]) |
| (ANDshiftLL x (MOVWconst [c]) [d]) => (ANDconst x [c<<uint64(d)]) |
| (ANDshiftRL x (MOVWconst [c]) [d]) => (ANDconst x [int32(uint32(c)>>uint64(d))]) |
| (ANDshiftRA x (MOVWconst [c]) [d]) => (ANDconst x [c>>uint64(d)]) |
| (ORshiftLL x (MOVWconst [c]) [d]) => (ORconst x [c<<uint64(d)]) |
| (ORshiftRL x (MOVWconst [c]) [d]) => (ORconst x [int32(uint32(c)>>uint64(d))]) |
| (ORshiftRA x (MOVWconst [c]) [d]) => (ORconst x [c>>uint64(d)]) |
| (XORshiftLL x (MOVWconst [c]) [d]) => (XORconst x [c<<uint64(d)]) |
| (XORshiftRL x (MOVWconst [c]) [d]) => (XORconst x [int32(uint32(c)>>uint64(d))]) |
| (XORshiftRA x (MOVWconst [c]) [d]) => (XORconst x [c>>uint64(d)]) |
| (XORshiftRR x (MOVWconst [c]) [d]) => (XORconst x [int32(uint32(c)>>uint64(d)|uint32(c)<<uint64(32-d))]) |
| (BICshiftLL x (MOVWconst [c]) [d]) => (BICconst x [c<<uint64(d)]) |
| (BICshiftRL x (MOVWconst [c]) [d]) => (BICconst x [int32(uint32(c)>>uint64(d))]) |
| (BICshiftRA x (MOVWconst [c]) [d]) => (BICconst x [c>>uint64(d)]) |
| (MVNshiftLL (MOVWconst [c]) [d]) => (MOVWconst [^(c<<uint64(d))]) |
| (MVNshiftRL (MOVWconst [c]) [d]) => (MOVWconst [^int32(uint32(c)>>uint64(d))]) |
| (MVNshiftRA (MOVWconst [c]) [d]) => (MOVWconst [int32(c)>>uint64(d)]) |
| (CMPshiftLL x (MOVWconst [c]) [d]) => (CMPconst x [c<<uint64(d)]) |
| (CMPshiftRL x (MOVWconst [c]) [d]) => (CMPconst x [int32(uint32(c)>>uint64(d))]) |
| (CMPshiftRA x (MOVWconst [c]) [d]) => (CMPconst x [c>>uint64(d)]) |
| (TSTshiftLL x (MOVWconst [c]) [d]) => (TSTconst x [c<<uint64(d)]) |
| (TSTshiftRL x (MOVWconst [c]) [d]) => (TSTconst x [int32(uint32(c)>>uint64(d))]) |
| (TSTshiftRA x (MOVWconst [c]) [d]) => (TSTconst x [c>>uint64(d)]) |
| (TEQshiftLL x (MOVWconst [c]) [d]) => (TEQconst x [c<<uint64(d)]) |
| (TEQshiftRL x (MOVWconst [c]) [d]) => (TEQconst x [int32(uint32(c)>>uint64(d))]) |
| (TEQshiftRA x (MOVWconst [c]) [d]) => (TEQconst x [c>>uint64(d)]) |
| (CMNshiftLL x (MOVWconst [c]) [d]) => (CMNconst x [c<<uint64(d)]) |
| (CMNshiftRL x (MOVWconst [c]) [d]) => (CMNconst x [int32(uint32(c)>>uint64(d))]) |
| (CMNshiftRA x (MOVWconst [c]) [d]) => (CMNconst x [c>>uint64(d)]) |
| |
| (ADDshiftLLreg x y (MOVWconst [c])) && 0 <= c && c < 32 => (ADDshiftLL x y [c]) |
| (ADDshiftRLreg x y (MOVWconst [c])) && 0 <= c && c < 32 => (ADDshiftRL x y [c]) |
| (ADDshiftRAreg x y (MOVWconst [c])) && 0 <= c && c < 32 => (ADDshiftRA x y [c]) |
| (ADCshiftLLreg x y (MOVWconst [c]) flags) && 0 <= c && c < 32 => (ADCshiftLL x y [c] flags) |
| (ADCshiftRLreg x y (MOVWconst [c]) flags) && 0 <= c && c < 32 => (ADCshiftRL x y [c] flags) |
| (ADCshiftRAreg x y (MOVWconst [c]) flags) && 0 <= c && c < 32 => (ADCshiftRA x y [c] flags) |
| (ADDSshiftLLreg x y (MOVWconst [c])) && 0 <= c && c < 32 => (ADDSshiftLL x y [c]) |
| (ADDSshiftRLreg x y (MOVWconst [c])) && 0 <= c && c < 32 => (ADDSshiftRL x y [c]) |
| (ADDSshiftRAreg x y (MOVWconst [c])) && 0 <= c && c < 32 => (ADDSshiftRA x y [c]) |
| (SUBshiftLLreg x y (MOVWconst [c])) && 0 <= c && c < 32 => (SUBshiftLL x y [c]) |
| (SUBshiftRLreg x y (MOVWconst [c])) && 0 <= c && c < 32 => (SUBshiftRL x y [c]) |
| (SUBshiftRAreg x y (MOVWconst [c])) && 0 <= c && c < 32 => (SUBshiftRA x y [c]) |
| (SBCshiftLLreg x y (MOVWconst [c]) flags) && 0 <= c && c < 32 => (SBCshiftLL x y [c] flags) |
| (SBCshiftRLreg x y (MOVWconst [c]) flags) && 0 <= c && c < 32 => (SBCshiftRL x y [c] flags) |
| (SBCshiftRAreg x y (MOVWconst [c]) flags) && 0 <= c && c < 32 => (SBCshiftRA x y [c] flags) |
| (SUBSshiftLLreg x y (MOVWconst [c])) && 0 <= c && c < 32 => (SUBSshiftLL x y [c]) |
| (SUBSshiftRLreg x y (MOVWconst [c])) && 0 <= c && c < 32 => (SUBSshiftRL x y [c]) |
| (SUBSshiftRAreg x y (MOVWconst [c])) && 0 <= c && c < 32 => (SUBSshiftRA x y [c]) |
| (RSBshiftLLreg x y (MOVWconst [c])) && 0 <= c && c < 32 => (RSBshiftLL x y [c]) |
| (RSBshiftRLreg x y (MOVWconst [c])) && 0 <= c && c < 32 => (RSBshiftRL x y [c]) |
| (RSBshiftRAreg x y (MOVWconst [c])) && 0 <= c && c < 32 => (RSBshiftRA x y [c]) |
| (RSCshiftLLreg x y (MOVWconst [c]) flags) && 0 <= c && c < 32 => (RSCshiftLL x y [c] flags) |
| (RSCshiftRLreg x y (MOVWconst [c]) flags) && 0 <= c && c < 32 => (RSCshiftRL x y [c] flags) |
| (RSCshiftRAreg x y (MOVWconst [c]) flags) && 0 <= c && c < 32 => (RSCshiftRA x y [c] flags) |
| (RSBSshiftLLreg x y (MOVWconst [c])) && 0 <= c && c < 32 => (RSBSshiftLL x y [c]) |
| (RSBSshiftRLreg x y (MOVWconst [c])) && 0 <= c && c < 32 => (RSBSshiftRL x y [c]) |
| (RSBSshiftRAreg x y (MOVWconst [c])) && 0 <= c && c < 32 => (RSBSshiftRA x y [c]) |
| (ANDshiftLLreg x y (MOVWconst [c])) && 0 <= c && c < 32 => (ANDshiftLL x y [c]) |
| (ANDshiftRLreg x y (MOVWconst [c])) && 0 <= c && c < 32 => (ANDshiftRL x y [c]) |
| (ANDshiftRAreg x y (MOVWconst [c])) && 0 <= c && c < 32 => (ANDshiftRA x y [c]) |
| (ORshiftLLreg x y (MOVWconst [c])) && 0 <= c && c < 32 => (ORshiftLL x y [c]) |
| (ORshiftRLreg x y (MOVWconst [c])) && 0 <= c && c < 32 => (ORshiftRL x y [c]) |
| (ORshiftRAreg x y (MOVWconst [c])) && 0 <= c && c < 32 => (ORshiftRA x y [c]) |
| (XORshiftLLreg x y (MOVWconst [c])) && 0 <= c && c < 32 => (XORshiftLL x y [c]) |
| (XORshiftRLreg x y (MOVWconst [c])) && 0 <= c && c < 32 => (XORshiftRL x y [c]) |
| (XORshiftRAreg x y (MOVWconst [c])) && 0 <= c && c < 32 => (XORshiftRA x y [c]) |
| (BICshiftLLreg x y (MOVWconst [c])) && 0 <= c && c < 32 => (BICshiftLL x y [c]) |
| (BICshiftRLreg x y (MOVWconst [c])) && 0 <= c && c < 32 => (BICshiftRL x y [c]) |
| (BICshiftRAreg x y (MOVWconst [c])) && 0 <= c && c < 32 => (BICshiftRA x y [c]) |
| (MVNshiftLLreg x (MOVWconst [c])) && 0 <= c && c < 32 => (MVNshiftLL x [c]) |
| (MVNshiftRLreg x (MOVWconst [c])) && 0 <= c && c < 32 => (MVNshiftRL x [c]) |
| (MVNshiftRAreg x (MOVWconst [c])) && 0 <= c && c < 32 => (MVNshiftRA x [c]) |
| (CMPshiftLLreg x y (MOVWconst [c])) && 0 <= c && c < 32 => (CMPshiftLL x y [c]) |
| (CMPshiftRLreg x y (MOVWconst [c])) && 0 <= c && c < 32 => (CMPshiftRL x y [c]) |
| (CMPshiftRAreg x y (MOVWconst [c])) && 0 <= c && c < 32 => (CMPshiftRA x y [c]) |
| (TSTshiftLLreg x y (MOVWconst [c])) && 0 <= c && c < 32 => (TSTshiftLL x y [c]) |
| (TSTshiftRLreg x y (MOVWconst [c])) && 0 <= c && c < 32 => (TSTshiftRL x y [c]) |
| (TSTshiftRAreg x y (MOVWconst [c])) && 0 <= c && c < 32 => (TSTshiftRA x y [c]) |
| (TEQshiftLLreg x y (MOVWconst [c])) && 0 <= c && c < 32 => (TEQshiftLL x y [c]) |
| (TEQshiftRLreg x y (MOVWconst [c])) && 0 <= c && c < 32 => (TEQshiftRL x y [c]) |
| (TEQshiftRAreg x y (MOVWconst [c])) && 0 <= c && c < 32 => (TEQshiftRA x y [c]) |
| (CMNshiftLLreg x y (MOVWconst [c])) && 0 <= c && c < 32 => (CMNshiftLL x y [c]) |
| (CMNshiftRLreg x y (MOVWconst [c])) && 0 <= c && c < 32 => (CMNshiftRL x y [c]) |
| (CMNshiftRAreg x y (MOVWconst [c])) && 0 <= c && c < 32 => (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) |
| |
| (RotateLeft16 <t> x (MOVWconst [c])) => (Or16 (Lsh16x32 <t> x (MOVWconst [c&15])) (Rsh16Ux32 <t> x (MOVWconst [-c&15]))) |
| (RotateLeft8 <t> x (MOVWconst [c])) => (Or8 (Lsh8x32 <t> x (MOVWconst [c&7])) (Rsh8Ux32 <t> x (MOVWconst [-c&7]))) |
| (RotateLeft32 x y) => (SRR x (RSBconst [0] <y.Type> y)) |
| |
| // ((x>>8) | (x<<8)) -> (REV16 x), the type of x is uint16, "|" can also be "^" or "+". |
| // UBFX instruction is supported by ARMv6T2, ARMv7 and above versions, REV16 is supported by |
| // ARMv6 and above versions. So for ARMv6, we need to match SLLconst, SRLconst and ORshiftLL. |
| ((ADDshiftLL|ORshiftLL|XORshiftLL) <typ.UInt16> [8] (BFXU <typ.UInt16> [int32(armBFAuxInt(8, 8))] x) x) => (REV16 x) |
| ((ADDshiftLL|ORshiftLL|XORshiftLL) <typ.UInt16> [8] (SRLconst <typ.UInt16> [24] (SLLconst [16] x)) x) && buildcfg.GOARM>=6 => (REV16 x) |
| |
| // use indexed loads and stores |
| (MOVWload [0] {sym} (ADD ptr idx) mem) && sym == nil => (MOVWloadidx ptr idx mem) |
| (MOVWstore [0] {sym} (ADD ptr idx) val mem) && sym == nil => (MOVWstoreidx ptr idx val mem) |
| (MOVWload [0] {sym} (ADDshiftLL ptr idx [c]) mem) && sym == nil => (MOVWloadshiftLL ptr idx [c] mem) |
| (MOVWload [0] {sym} (ADDshiftRL ptr idx [c]) mem) && sym == nil => (MOVWloadshiftRL ptr idx [c] mem) |
| (MOVWload [0] {sym} (ADDshiftRA ptr idx [c]) mem) && sym == nil => (MOVWloadshiftRA ptr idx [c] mem) |
| (MOVWstore [0] {sym} (ADDshiftLL ptr idx [c]) val mem) && sym == nil => (MOVWstoreshiftLL ptr idx [c] val mem) |
| (MOVWstore [0] {sym} (ADDshiftRL ptr idx [c]) val mem) && sym == nil => (MOVWstoreshiftRL ptr idx [c] val mem) |
| (MOVWstore [0] {sym} (ADDshiftRA ptr idx [c]) val mem) && sym == nil => (MOVWstoreshiftRA ptr idx [c] val mem) |
| (MOVBUload [0] {sym} (ADD ptr idx) mem) && sym == nil => (MOVBUloadidx ptr idx mem) |
| (MOVBload [0] {sym} (ADD ptr idx) mem) && sym == nil => (MOVBloadidx ptr idx mem) |
| (MOVBstore [0] {sym} (ADD ptr idx) val mem) && sym == nil => (MOVBstoreidx ptr idx val mem) |
| (MOVHUload [0] {sym} (ADD ptr idx) mem) && sym == nil => (MOVHUloadidx ptr idx mem) |
| (MOVHload [0] {sym} (ADD ptr idx) mem) && sym == nil => (MOVHloadidx ptr idx mem) |
| (MOVHstore [0] {sym} (ADD ptr idx) val mem) && sym == nil => (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 [int32(uint32(c)<<uint64(d))] ptr mem) |
| (MOVWloadshiftRL ptr (MOVWconst [c]) [d] mem) => (MOVWload [int32(uint32(c)>>uint64(d))] ptr mem) |
| (MOVWloadshiftRA ptr (MOVWconst [c]) [d] mem) => (MOVWload [c>>uint64(d)] ptr mem) |
| |
| (MOVWstoreshiftLL ptr (MOVWconst [c]) [d] val mem) => (MOVWstore [int32(uint32(c)<<uint64(d))] ptr val mem) |
| (MOVWstoreshiftRL ptr (MOVWconst [c]) [d] val mem) => (MOVWstore [int32(uint32(c)>>uint64(d))] ptr val mem) |
| (MOVWstoreshiftRA ptr (MOVWconst [c]) [d] val mem) => (MOVWstore [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)) && buildcfg.GOARM == 7 => (MULS x y a) |
| (RSB (MUL x y) a) && buildcfg.GOARM == 7 => (MULS x y a) |
| |
| (NEGF (MULF x y)) && buildcfg.GOARM >= 6 => (NMULF x y) |
| (NEGD (MULD x y)) && buildcfg.GOARM >= 6 => (NMULD x y) |
| (MULF (NEGF x) y) && buildcfg.GOARM >= 6 => (NMULF x y) |
| (MULD (NEGD x) y) && buildcfg.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 && buildcfg.GOARM >= 6 => (MULAF a x y) |
| (ADDF a (NMULF x y)) && a.Uses == 1 && buildcfg.GOARM >= 6 => (MULSF a x y) |
| (ADDD a (MULD x y)) && a.Uses == 1 && buildcfg.GOARM >= 6 => (MULAD a x y) |
| (ADDD a (NMULD x y)) && a.Uses == 1 && buildcfg.GOARM >= 6 => (MULSD a x y) |
| (SUBF a (MULF x y)) && a.Uses == 1 && buildcfg.GOARM >= 6 => (MULSF a x y) |
| (SUBF a (NMULF x y)) && a.Uses == 1 && buildcfg.GOARM >= 6 => (MULAF a x y) |
| (SUBD a (MULD x y)) && a.Uses == 1 && buildcfg.GOARM >= 6 => (MULSD a x y) |
| (SUBD a (NMULD x y)) && a.Uses == 1 && buildcfg.GOARM >= 6 => (MULAD a x y) |
| |
| (AND x (MVN y)) => (BIC x y) |
| |
| // simplification with *shift ops |
| (SUBshiftLL (SLLconst x [c]) x [c]) => (MOVWconst [0]) |
| (SUBshiftRL (SRLconst x [c]) x [c]) => (MOVWconst [0]) |
| (SUBshiftRA (SRAconst x [c]) x [c]) => (MOVWconst [0]) |
| (RSBshiftLL (SLLconst x [c]) x [c]) => (MOVWconst [0]) |
| (RSBshiftRL (SRLconst x [c]) x [c]) => (MOVWconst [0]) |
| (RSBshiftRA (SRAconst x [c]) x [c]) => (MOVWconst [0]) |
| (ANDshiftLL y:(SLLconst x [c]) x [c]) => y |
| (ANDshiftRL y:(SRLconst x [c]) x [c]) => y |
| (ANDshiftRA y:(SRAconst x [c]) x [c]) => y |
| (ORshiftLL y:(SLLconst x [c]) x [c]) => y |
| (ORshiftRL y:(SRLconst x [c]) x [c]) => y |
| (ORshiftRA y:(SRAconst x [c]) x [c]) => y |
| (XORshiftLL (SLLconst x [c]) x [c]) => (MOVWconst [0]) |
| (XORshiftRL (SRLconst x [c]) x [c]) => (MOVWconst [0]) |
| (XORshiftRA (SRAconst x [c]) x [c]) => (MOVWconst [0]) |
| (BICshiftLL (SLLconst x [c]) x [c]) => (MOVWconst [0]) |
| (BICshiftRL (SRLconst x [c]) x [c]) => (MOVWconst [0]) |
| (BICshiftRA (SRAconst x [c]) x [c]) => (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]) && buildcfg.GOARM==7 && uint64(d)>=uint64(c) && uint64(d)<=31 => (BFX [(d-c)|(32-d)<<8] x) |
| (SRLconst (SLLconst x [c]) [d]) && buildcfg.GOARM==7 && uint64(d)>=uint64(c) && uint64(d)<=31 => (BFXU [(d-c)|(32-d)<<8] x) |
| |
| // comparison simplification |
| ((EQ|NE) (CMP x (RSBconst [0] y))) => ((EQ|NE) (CMN x y)) // sense of carry bit not preserved; see also #50854 |
| ((EQ|NE) (CMN x (RSBconst [0] y))) => ((EQ|NE) (CMP x y)) // sense of carry bit not preserved; see also #50864 |
| (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 => (LTnoov (CMP x y) yes no) |
| (LT (CMPconst [0] l:(MULS x y a)) yes no) && l.Uses==1 => (LTnoov (CMP a (MUL <x.Type> x y)) yes no) |
| (LT (CMPconst [0] l:(SUBconst [c] x)) yes no) && l.Uses==1 => (LTnoov (CMPconst [c] x) yes no) |
| (LT (CMPconst [0] l:(SUBshiftLL x y [c])) yes no) && l.Uses==1 => (LTnoov (CMPshiftLL x y [c]) yes no) |
| (LT (CMPconst [0] l:(SUBshiftRL x y [c])) yes no) && l.Uses==1 => (LTnoov (CMPshiftRL x y [c]) yes no) |
| (LT (CMPconst [0] l:(SUBshiftRA x y [c])) yes no) && l.Uses==1 => (LTnoov (CMPshiftRA x y [c]) yes no) |
| (LT (CMPconst [0] l:(SUBshiftLLreg x y z)) yes no) && l.Uses==1 => (LTnoov (CMPshiftLLreg x y z) yes no) |
| (LT (CMPconst [0] l:(SUBshiftRLreg x y z)) yes no) && l.Uses==1 => (LTnoov (CMPshiftRLreg x y z) yes no) |
| (LT (CMPconst [0] l:(SUBshiftRAreg x y z)) yes no) && l.Uses==1 => (LTnoov (CMPshiftRAreg x y z) yes no) |
| (LE (CMPconst [0] l:(SUB x y)) yes no) && l.Uses==1 => (LEnoov (CMP x y) yes no) |
| (LE (CMPconst [0] l:(MULS x y a)) yes no) && l.Uses==1 => (LEnoov (CMP a (MUL <x.Type> x y)) yes no) |
| (LE (CMPconst [0] l:(SUBconst [c] x)) yes no) && l.Uses==1 => (LEnoov (CMPconst [c] x) yes no) |
| (LE (CMPconst [0] l:(SUBshiftLL x y [c])) yes no) && l.Uses==1 => (LEnoov (CMPshiftLL x y [c]) yes no) |
| (LE (CMPconst [0] l:(SUBshiftRL x y [c])) yes no) && l.Uses==1 => (LEnoov (CMPshiftRL x y [c]) yes no) |
| (LE (CMPconst [0] l:(SUBshiftRA x y [c])) yes no) && l.Uses==1 => (LEnoov (CMPshiftRA x y [c]) yes no) |
| (LE (CMPconst [0] l:(SUBshiftLLreg x y z)) yes no) && l.Uses==1 => (LEnoov (CMPshiftLLreg x y z) yes no) |
| (LE (CMPconst [0] l:(SUBshiftRLreg x y z)) yes no) && l.Uses==1 => (LEnoov (CMPshiftRLreg x y z) yes no) |
| (LE (CMPconst [0] l:(SUBshiftRAreg x y z)) yes no) && l.Uses==1 => (LEnoov (CMPshiftRAreg x y z) yes no) |
| (LT (CMPconst [0] l:(ADD x y)) yes no) && l.Uses==1 => (LTnoov (CMN x y) yes no) |
| (LT (CMPconst [0] l:(MULA x y a)) yes no) && l.Uses==1 => (LTnoov (CMN a (MUL <x.Type> x y)) yes no) |
| (LT (CMPconst [0] l:(ADDconst [c] x)) yes no) && l.Uses==1 => (LTnoov (CMNconst [c] x) yes no) |
| (LT (CMPconst [0] l:(ADDshiftLL x y [c])) yes no) && l.Uses==1 => (LTnoov (CMNshiftLL x y [c]) yes no) |
| (LT (CMPconst [0] l:(ADDshiftRL x y [c])) yes no) && l.Uses==1 => (LTnoov (CMNshiftRL x y [c]) yes no) |
| (LT (CMPconst [0] l:(ADDshiftRA x y [c])) yes no) && l.Uses==1 => (LTnoov (CMNshiftRA x y [c]) yes no) |
| (LT (CMPconst [0] l:(ADDshiftLLreg x y z)) yes no) && l.Uses==1 => (LTnoov (CMNshiftLLreg x y z) yes no) |
| (LT (CMPconst [0] l:(ADDshiftRLreg x y z)) yes no) && l.Uses==1 => (LTnoov (CMNshiftRLreg x y z) yes no) |
| (LT (CMPconst [0] l:(ADDshiftRAreg x y z)) yes no) && l.Uses==1 => (LTnoov (CMNshiftRAreg x y z) yes no) |
| (LE (CMPconst [0] l:(ADD x y)) yes no) && l.Uses==1 => (LEnoov (CMN x y) yes no) |
| (LE (CMPconst [0] l:(MULA x y a)) yes no) && l.Uses==1 => (LEnoov (CMN a (MUL <x.Type> x y)) yes no) |
| (LE (CMPconst [0] l:(ADDconst [c] x)) yes no) && l.Uses==1 => (LEnoov (CMNconst [c] x) yes no) |
| (LE (CMPconst [0] l:(ADDshiftLL x y [c])) yes no) && l.Uses==1 => (LEnoov (CMNshiftLL x y [c]) yes no) |
| (LE (CMPconst [0] l:(ADDshiftRL x y [c])) yes no) && l.Uses==1 => (LEnoov (CMNshiftRL x y [c]) yes no) |
| (LE (CMPconst [0] l:(ADDshiftRA x y [c])) yes no) && l.Uses==1 => (LEnoov (CMNshiftRA x y [c]) yes no) |
| (LE (CMPconst [0] l:(ADDshiftLLreg x y z)) yes no) && l.Uses==1 => (LEnoov (CMNshiftLLreg x y z) yes no) |
| (LE (CMPconst [0] l:(ADDshiftRLreg x y z)) yes no) && l.Uses==1 => (LEnoov (CMNshiftRLreg x y z) yes no) |
| (LE (CMPconst [0] l:(ADDshiftRAreg x y z)) yes no) && l.Uses==1 => (LEnoov (CMNshiftRAreg x y z) yes no) |
| (LT (CMPconst [0] l:(AND x y)) yes no) && l.Uses==1 => (LTnoov (TST x y) yes no) |
| (LT (CMPconst [0] l:(ANDconst [c] x)) yes no) && l.Uses==1 => (LTnoov (TSTconst [c] x) yes no) |
| (LT (CMPconst [0] l:(ANDshiftLL x y [c])) yes no) && l.Uses==1 => (LTnoov (TSTshiftLL x y [c]) yes no) |
| (LT (CMPconst [0] l:(ANDshiftRL x y [c])) yes no) && l.Uses==1 => (LTnoov (TSTshiftRL x y [c]) yes no) |
| (LT (CMPconst [0] l:(ANDshiftRA x y [c])) yes no) && l.Uses==1 => (LTnoov (TSTshiftRA x y [c]) yes no) |
| (LT (CMPconst [0] l:(ANDshiftLLreg x y z)) yes no) && l.Uses==1 => (LTnoov (TSTshiftLLreg x y z) yes no) |
| (LT (CMPconst [0] l:(ANDshiftRLreg x y z)) yes no) && l.Uses==1 => (LTnoov (TSTshiftRLreg x y z) yes no) |
| (LT (CMPconst [0] l:(ANDshiftRAreg x y z)) yes no) && l.Uses==1 => (LTnoov (TSTshiftRAreg x y z) yes no) |
| (LE (CMPconst [0] l:(AND x y)) yes no) && l.Uses==1 => (LEnoov (TST x y) yes no) |
| (LE (CMPconst [0] l:(ANDconst [c] x)) yes no) && l.Uses==1 => (LEnoov (TSTconst [c] x) yes no) |
| (LE (CMPconst [0] l:(ANDshiftLL x y [c])) yes no) && l.Uses==1 => (LEnoov (TSTshiftLL x y [c]) yes no) |
| (LE (CMPconst [0] l:(ANDshiftRL x y [c])) yes no) && l.Uses==1 => (LEnoov (TSTshiftRL x y [c]) yes no) |
| (LE (CMPconst [0] l:(ANDshiftRA x y [c])) yes no) && l.Uses==1 => (LEnoov (TSTshiftRA x y [c]) yes no) |
| (LE (CMPconst [0] l:(ANDshiftLLreg x y z)) yes no) && l.Uses==1 => (LEnoov (TSTshiftLLreg x y z) yes no) |
| (LE (CMPconst [0] l:(ANDshiftRLreg x y z)) yes no) && l.Uses==1 => (LEnoov (TSTshiftRLreg x y z) yes no) |
| (LE (CMPconst [0] l:(ANDshiftRAreg x y z)) yes no) && l.Uses==1 => (LEnoov (TSTshiftRAreg x y z) yes no) |
| (LT (CMPconst [0] l:(XOR x y)) yes no) && l.Uses==1 => (LTnoov (TEQ x y) yes no) |
| (LT (CMPconst [0] l:(XORconst [c] x)) yes no) && l.Uses==1 => (LTnoov (TEQconst [c] x) yes no) |
| (LT (CMPconst [0] l:(XORshiftLL x y [c])) yes no) && l.Uses==1 => (LTnoov (TEQshiftLL x y [c]) yes no) |
| (LT (CMPconst [0] l:(XORshiftRL x y [c])) yes no) && l.Uses==1 => (LTnoov (TEQshiftRL x y [c]) yes no) |
| (LT (CMPconst [0] l:(XORshiftRA x y [c])) yes no) && l.Uses==1 => (LTnoov (TEQshiftRA x y [c]) yes no) |
| (LT (CMPconst [0] l:(XORshiftLLreg x y z)) yes no) && l.Uses==1 => (LTnoov (TEQshiftLLreg x y z) yes no) |
| (LT (CMPconst [0] l:(XORshiftRLreg x y z)) yes no) && l.Uses==1 => (LTnoov (TEQshiftRLreg x y z) yes no) |
| (LT (CMPconst [0] l:(XORshiftRAreg x y z)) yes no) && l.Uses==1 => (LTnoov (TEQshiftRAreg x y z) yes no) |
| (LE (CMPconst [0] l:(XOR x y)) yes no) && l.Uses==1 => (LEnoov (TEQ x y) yes no) |
| (LE (CMPconst [0] l:(XORconst [c] x)) yes no) && l.Uses==1 => (LEnoov (TEQconst [c] x) yes no) |
| (LE (CMPconst [0] l:(XORshiftLL x y [c])) yes no) && l.Uses==1 => (LEnoov (TEQshiftLL x y [c]) yes no) |
| (LE (CMPconst [0] l:(XORshiftRL x y [c])) yes no) && l.Uses==1 => (LEnoov (TEQshiftRL x y [c]) yes no) |
| (LE (CMPconst [0] l:(XORshiftRA x y [c])) yes no) && l.Uses==1 => (LEnoov (TEQshiftRA x y [c]) yes no) |
| (LE (CMPconst [0] l:(XORshiftLLreg x y z)) yes no) && l.Uses==1 => (LEnoov (TEQshiftLLreg x y z) yes no) |
| (LE (CMPconst [0] l:(XORshiftRLreg x y z)) yes no) && l.Uses==1 => (LEnoov (TEQshiftRLreg x y z) yes no) |
| (LE (CMPconst [0] l:(XORshiftRAreg x y z)) yes no) && l.Uses==1 => (LEnoov (TEQshiftRAreg x y z) yes no) |
| (GT (CMPconst [0] l:(SUB x y)) yes no) && l.Uses==1 => (GTnoov (CMP x y) yes no) |
| (GT (CMPconst [0] l:(MULS x y a)) yes no) && l.Uses==1 => (GTnoov (CMP a (MUL <x.Type> x y)) yes no) |
| (GT (CMPconst [0] l:(SUBconst [c] x)) yes no) && l.Uses==1 => (GTnoov (CMPconst [c] x) yes no) |
| (GT (CMPconst [0] l:(SUBshiftLL x y [c])) yes no) && l.Uses==1 => (GTnoov (CMPshiftLL x y [c]) yes no) |
| (GT (CMPconst [0] l:(SUBshiftRL x y [c])) yes no) && l.Uses==1 => (GTnoov (CMPshiftRL x y [c]) yes no) |
| (GT (CMPconst [0] l:(SUBshiftRA x y [c])) yes no) && l.Uses==1 => (GTnoov (CMPshiftRA x y [c]) yes no) |
| (GT (CMPconst [0] l:(SUBshiftLLreg x y z)) yes no) && l.Uses==1 => (GTnoov (CMPshiftLLreg x y z) yes no) |
| (GT (CMPconst [0] l:(SUBshiftRLreg x y z)) yes no) && l.Uses==1 => (GTnoov (CMPshiftRLreg x y z) yes no) |
| (GT (CMPconst [0] l:(SUBshiftRAreg x y z)) yes no) && l.Uses==1 => (GTnoov (CMPshiftRAreg x y z) yes no) |
| (GE (CMPconst [0] l:(SUB x y)) yes no) && l.Uses==1 => (GEnoov (CMP x y) yes no) |
| (GE (CMPconst [0] l:(MULS x y a)) yes no) && l.Uses==1 => (GEnoov (CMP a (MUL <x.Type> x y)) yes no) |
| (GE (CMPconst [0] l:(SUBconst [c] x)) yes no) && l.Uses==1 => (GEnoov (CMPconst [c] x) yes no) |
| (GE (CMPconst [0] l:(SUBshiftLL x y [c])) yes no) && l.Uses==1 => (GEnoov (CMPshiftLL x y [c]) yes no) |
| (GE (CMPconst [0] l:(SUBshiftRL x y [c])) yes no) && l.Uses==1 => (GEnoov (CMPshiftRL x y [c]) yes no) |
| (GE (CMPconst [0] l:(SUBshiftRA x y [c])) yes no) && l.Uses==1 => (GEnoov (CMPshiftRA x y [c]) yes no) |
| (GE (CMPconst [0] l:(SUBshiftLLreg x y z)) yes no) && l.Uses==1 => (GEnoov (CMPshiftLLreg x y z) yes no) |
| (GE (CMPconst [0] l:(SUBshiftRLreg x y z)) yes no) && l.Uses==1 => (GEnoov (CMPshiftRLreg x y z) yes no) |
| (GE (CMPconst [0] l:(SUBshiftRAreg x y z)) yes no) && l.Uses==1 => (GEnoov (CMPshiftRAreg x y z) yes no) |
| (GT (CMPconst [0] l:(ADD x y)) yes no) && l.Uses==1 => (GTnoov (CMN x y) yes no) |
| (GT (CMPconst [0] l:(ADDconst [c] x)) yes no) && l.Uses==1 => (GTnoov (CMNconst [c] x) yes no) |
| (GT (CMPconst [0] l:(ADDshiftLL x y [c])) yes no) && l.Uses==1 => (GTnoov (CMNshiftLL x y [c]) yes no) |
| (GT (CMPconst [0] l:(ADDshiftRL x y [c])) yes no) && l.Uses==1 => (GTnoov (CMNshiftRL x y [c]) yes no) |
| (GT (CMPconst [0] l:(ADDshiftRA x y [c])) yes no) && l.Uses==1 => (GTnoov (CMNshiftRA x y [c]) yes no) |
| (GT (CMPconst [0] l:(ADDshiftLLreg x y z)) yes no) && l.Uses==1 => (GTnoov (CMNshiftLLreg x y z) yes no) |
| (GT (CMPconst [0] l:(ADDshiftRLreg x y z)) yes no) && l.Uses==1 => (GTnoov (CMNshiftRLreg x y z) yes no) |
| (GT (CMPconst [0] l:(ADDshiftRAreg x y z)) yes no) && l.Uses==1 => (GTnoov (CMNshiftRAreg x y z) yes no) |
| (GE (CMPconst [0] l:(ADD x y)) yes no) && l.Uses==1 => (GEnoov (CMN x y) yes no) |
| (GE (CMPconst [0] l:(MULA x y a)) yes no) && l.Uses==1 => (GEnoov (CMN a (MUL <x.Type> x y)) yes no) |
| (GE (CMPconst [0] l:(ADDconst [c] x)) yes no) && l.Uses==1 => (GEnoov (CMNconst [c] x) yes no) |
| (GE (CMPconst [0] l:(ADDshiftLL x y [c])) yes no) && l.Uses==1 => (GEnoov (CMNshiftLL x y [c]) yes no) |
| (GE (CMPconst [0] l:(ADDshiftRL x y [c])) yes no) && l.Uses==1 => (GEnoov (CMNshiftRL x y [c]) yes no) |
| (GE (CMPconst [0] l:(ADDshiftRA x y [c])) yes no) && l.Uses==1 => (GEnoov (CMNshiftRA x y [c]) yes no) |
| (GE (CMPconst [0] l:(ADDshiftLLreg x y z)) yes no) && l.Uses==1 => (GEnoov (CMNshiftLLreg x y z) yes no) |
| (GE (CMPconst [0] l:(ADDshiftRLreg x y z)) yes no) && l.Uses==1 => (GEnoov (CMNshiftRLreg x y z) yes no) |
| (GE (CMPconst [0] l:(ADDshiftRAreg x y z)) yes no) && l.Uses==1 => (GEnoov (CMNshiftRAreg x y z) yes no) |
| (GT (CMPconst [0] l:(MULA x y a)) yes no) && l.Uses==1 => (GTnoov (CMN a (MUL <x.Type> x y)) yes no) |
| (GT (CMPconst [0] l:(AND x y)) yes no) && l.Uses==1 => (GTnoov (TST x y) yes no) |
| (GT (CMPconst [0] l:(ANDconst [c] x)) yes no) && l.Uses==1 => (GTnoov (TSTconst [c] x) yes no) |
| (GT (CMPconst [0] l:(ANDshiftLL x y [c])) yes no) && l.Uses==1 => (GTnoov (TSTshiftLL x y [c]) yes no) |
| (GT (CMPconst [0] l:(ANDshiftRL x y [c])) yes no) && l.Uses==1 => (GTnoov (TSTshiftRL x y [c]) yes no) |
| (GT (CMPconst [0] l:(ANDshiftRA x y [c])) yes no) && l.Uses==1 => (GTnoov (TSTshiftRA x y [c]) yes no) |
| (GT (CMPconst [0] l:(ANDshiftLLreg x y z)) yes no) && l.Uses==1 => (GTnoov (TSTshiftLLreg x y z) yes no) |
| (GT (CMPconst [0] l:(ANDshiftRLreg x y z)) yes no) && l.Uses==1 => (GTnoov (TSTshiftRLreg x y z) yes no) |
| (GT (CMPconst [0] l:(ANDshiftRAreg x y z)) yes no) && l.Uses==1 => (GTnoov (TSTshiftRAreg x y z) yes no) |
| (GE (CMPconst [0] l:(AND x y)) yes no) && l.Uses==1 => (GEnoov (TST x y) yes no) |
| (GE (CMPconst [0] l:(ANDconst [c] x)) yes no) && l.Uses==1 => (GEnoov (TSTconst [c] x) yes no) |
| (GE (CMPconst [0] l:(ANDshiftLL x y [c])) yes no) && l.Uses==1 => (GEnoov (TSTshiftLL x y [c]) yes no) |
| (GE (CMPconst [0] l:(ANDshiftRL x y [c])) yes no) && l.Uses==1 => (GEnoov (TSTshiftRL x y [c]) yes no) |
| (GE (CMPconst [0] l:(ANDshiftRA x y [c])) yes no) && l.Uses==1 => (GEnoov (TSTshiftRA x y [c]) yes no) |
| (GE (CMPconst [0] l:(ANDshiftLLreg x y z)) yes no) && l.Uses==1 => (GEnoov (TSTshiftLLreg x y z) yes no) |
| (GE (CMPconst [0] l:(ANDshiftRLreg x y z)) yes no) && l.Uses==1 => (GEnoov (TSTshiftRLreg x y z) yes no) |
| (GE (CMPconst [0] l:(ANDshiftRAreg x y z)) yes no) && l.Uses==1 => (GEnoov (TSTshiftRAreg x y z) yes no) |
| (GT (CMPconst [0] l:(XOR x y)) yes no) && l.Uses==1 => (GTnoov (TEQ x y) yes no) |
| (GT (CMPconst [0] l:(XORconst [c] x)) yes no) && l.Uses==1 => (GTnoov (TEQconst [c] x) yes no) |
| (GT (CMPconst [0] l:(XORshiftLL x y [c])) yes no) && l.Uses==1 => (GTnoov (TEQshiftLL x y [c]) yes no) |
| (GT (CMPconst [0] l:(XORshiftRL x y [c])) yes no) && l.Uses==1 => (GTnoov (TEQshiftRL x y [c]) yes no) |
| (GT (CMPconst [0] l:(XORshiftRA x y [c])) yes no) && l.Uses==1 => (GTnoov (TEQshiftRA x y [c]) yes no) |
| (GT (CMPconst [0] l:(XORshiftLLreg x y z)) yes no) && l.Uses==1 => (GTnoov (TEQshiftLLreg x y z) yes no) |
| (GT (CMPconst [0] l:(XORshiftRLreg x y z)) yes no) && l.Uses==1 => (GTnoov (TEQshiftRLreg x y z) yes no) |
| (GT (CMPconst [0] l:(XORshiftRAreg x y z)) yes no) && l.Uses==1 => (GTnoov (TEQshiftRAreg x y z) yes no) |
| (GE (CMPconst [0] l:(XOR x y)) yes no) && l.Uses==1 => (GEnoov (TEQ x y) yes no) |
| (GE (CMPconst [0] l:(XORconst [c] x)) yes no) && l.Uses==1 => (GEnoov (TEQconst [c] x) yes no) |
| (GE (CMPconst [0] l:(XORshiftLL x y [c])) yes no) && l.Uses==1 => (GEnoov (TEQshiftLL x y [c]) yes no) |
| (GE (CMPconst [0] l:(XORshiftRL x y [c])) yes no) && l.Uses==1 => (GEnoov (TEQshiftRL x y [c]) yes no) |
| (GE (CMPconst [0] l:(XORshiftRA x y [c])) yes no) && l.Uses==1 => (GEnoov (TEQshiftRA x y [c]) yes no) |
| (GE (CMPconst [0] l:(XORshiftLLreg x y z)) yes no) && l.Uses==1 => (GEnoov (TEQshiftLLreg x y z) yes no) |
| (GE (CMPconst [0] l:(XORshiftRLreg x y z)) yes no) && l.Uses==1 => (GEnoov (TEQshiftRLreg x y z) yes no) |
| (GE (CMPconst [0] l:(XORshiftRAreg x y z)) yes no) && l.Uses==1 => (GEnoov (TEQshiftRAreg x y z) yes no) |
| |
| (MOVBUload [off] {sym} (SB) _) && symIsRO(sym) => (MOVWconst [int32(read8(sym, int64(off)))]) |
| (MOVHUload [off] {sym} (SB) _) && symIsRO(sym) => (MOVWconst [int32(read16(sym, int64(off), config.ctxt.Arch.ByteOrder))]) |
| (MOVWload [off] {sym} (SB) _) && symIsRO(sym) => (MOVWconst [int32(read32(sym, int64(off), config.ctxt.Arch.ByteOrder))]) |
