| // Copyright 2018 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. |
| |
| // Lowering arithmetic |
| (Add(64|32|16|8|Ptr) x y) -> (I64Add x y) |
| (Add(64|32)F x y) -> (F64Add x y) |
| |
| (Sub(64|32|16|8|Ptr) x y) -> (I64Sub x y) |
| (Sub(64|32)F x y) -> (F64Sub x y) |
| |
| (Mul(64|32|16|8) x y) -> (I64Mul x y) |
| (Mul(64|32)F x y) -> (F64Mul x y) |
| |
| (Div64 x y) -> (I64DivS x y) |
| (Div64u x y) -> (I64DivU x y) |
| (Div32 x y) -> (I64DivS (SignExt32to64 x) (SignExt32to64 y)) |
| (Div32u x y) -> (I64DivU (ZeroExt32to64 x) (ZeroExt32to64 y)) |
| (Div16 x y) -> (I64DivS (SignExt16to64 x) (SignExt16to64 y)) |
| (Div16u x y) -> (I64DivU (ZeroExt16to64 x) (ZeroExt16to64 y)) |
| (Div8 x y) -> (I64DivS (SignExt8to64 x) (SignExt8to64 y)) |
| (Div8u x y) -> (I64DivU (ZeroExt8to64 x) (ZeroExt8to64 y)) |
| (Div(64|32)F x y) -> (F64Div x y) |
| |
| (Mod64 x y) -> (I64RemS x y) |
| (Mod64u x y) -> (I64RemU x y) |
| (Mod32 x y) -> (I64RemS (SignExt32to64 x) (SignExt32to64 y)) |
| (Mod32u x y) -> (I64RemU (ZeroExt32to64 x) (ZeroExt32to64 y)) |
| (Mod16 x y) -> (I64RemS (SignExt16to64 x) (SignExt16to64 y)) |
| (Mod16u x y) -> (I64RemU (ZeroExt16to64 x) (ZeroExt16to64 y)) |
| (Mod8 x y) -> (I64RemS (SignExt8to64 x) (SignExt8to64 y)) |
| (Mod8u x y) -> (I64RemU (ZeroExt8to64 x) (ZeroExt8to64 y)) |
| |
| (And(64|32|16|8|B) x y) -> (I64And x y) |
| |
| (Or(64|32|16|8|B) x y) -> (I64Or x y) |
| |
| (Xor(64|32|16|8) x y) -> (I64Xor x y) |
| |
| (Neg(64|32|16|8) x) -> (I64Sub (I64Const [0]) x) |
| (Neg32F x) -> (F64Neg x) |
| (Neg64F x) -> (F64Neg x) |
| |
| (Com(64|32|16|8) x) -> (I64Xor x (I64Const [-1])) |
| |
| (Not x) -> (I64Eqz x) |
| |
| // Lowering pointer arithmetic |
| (OffPtr [off] ptr) -> (I64AddConst [off] ptr) |
| |
| // Lowering extension |
| // It is unnecessary to extend loads |
| (SignExt32to64 x:(I64Load32S _ _)) -> x |
| (SignExt16to(64|32) x:(I64Load16S _ _)) -> x |
| (SignExt8to(64|32|16) x:(I64Load8S _ _)) -> x |
| (ZeroExt32to64 x:(I64Load32U _ _)) -> x |
| (ZeroExt16to(64|32) x:(I64Load16U _ _)) -> x |
| (ZeroExt8to(64|32|16) x:(I64Load8U _ _)) -> x |
| (SignExt32to64 x) && objabi.GOWASM.SignExt -> (I64Extend32S x) |
| (SignExt8to(64|32|16) x) && objabi.GOWASM.SignExt -> (I64Extend8S x) |
| (SignExt16to(64|32) x) && objabi.GOWASM.SignExt -> (I64Extend16S x) |
| (SignExt32to64 x) -> (I64ShrS (I64Shl x (I64Const [32])) (I64Const [32])) |
| (SignExt16to(64|32) x) -> (I64ShrS (I64Shl x (I64Const [48])) (I64Const [48])) |
| (SignExt8to(64|32|16) x) -> (I64ShrS (I64Shl x (I64Const [56])) (I64Const [56])) |
| (ZeroExt32to64 x) -> (I64And x (I64Const [0xffffffff])) |
| (ZeroExt16to(64|32) x) -> (I64And x (I64Const [0xffff])) |
| (ZeroExt8to(64|32|16) x) -> (I64And x (I64Const [0xff])) |
| |
| (Slicemask x) -> (I64ShrS (I64Sub (I64Const [0]) x) (I64Const [63])) |
| |
| // Lowering truncation |
| // Because we ignore the high parts, truncates are just copies. |
| (Trunc64to(32|16|8) x) -> x |
| (Trunc32to(16|8) x) -> x |
| (Trunc16to8 x) -> x |
| |
| // Lowering float <-> int |
| (Cvt32to32F x) -> (LoweredRound32F (F64ConvertI64S (SignExt32to64 x))) |
| (Cvt32to64F x) -> (F64ConvertI64S (SignExt32to64 x)) |
| (Cvt64to32F x) -> (LoweredRound32F (F64ConvertI64S x)) |
| (Cvt64to64F x) -> (F64ConvertI64S x) |
| (Cvt32Uto32F x) -> (LoweredRound32F (F64ConvertI64U (ZeroExt32to64 x))) |
| (Cvt32Uto64F x) -> (F64ConvertI64U (ZeroExt32to64 x)) |
| (Cvt64Uto32F x) -> (LoweredRound32F (F64ConvertI64U x)) |
| (Cvt64Uto64F x) -> (F64ConvertI64U x) |
| |
| (Cvt32Fto32 x) -> (I64TruncSatF64S x) |
| (Cvt32Fto64 x) -> (I64TruncSatF64S x) |
| (Cvt64Fto32 x) -> (I64TruncSatF64S x) |
| (Cvt64Fto64 x) -> (I64TruncSatF64S x) |
| (Cvt32Fto32U x) -> (I64TruncSatF64U x) |
| (Cvt32Fto64U x) -> (I64TruncSatF64U x) |
| (Cvt64Fto32U x) -> (I64TruncSatF64U x) |
| (Cvt64Fto64U x) -> (I64TruncSatF64U x) |
| |
| (Cvt32Fto64F x) -> x |
| (Cvt64Fto32F x) -> (LoweredRound32F x) |
| |
| (Round32F x) -> (LoweredRound32F x) |
| (Round64F x) -> x |
| |
| // Lowering shifts |
| // Unsigned shifts need to return 0 if shift amount is >= width of shifted value. |
| |
| (Lsh64x64 x y) && shiftIsBounded(v) -> (I64Shl x y) |
| (Lsh64x64 x y) -> (Select (I64Shl x y) (I64Const [0]) (I64LtU y (I64Const [64]))) |
| (Lsh64x(32|16|8) x y) -> (Lsh64x64 x (ZeroExt(32|16|8)to64 y)) |
| |
| (Lsh32x64 x y) -> (Lsh64x64 x y) |
| (Lsh32x(32|16|8) x y) -> (Lsh64x64 x (ZeroExt(32|16|8)to64 y)) |
| |
| (Lsh16x64 x y) -> (Lsh64x64 x y) |
| (Lsh16x(32|16|8) x y) -> (Lsh64x64 x (ZeroExt(32|16|8)to64 y)) |
| |
| (Lsh8x64 x y) -> (Lsh64x64 x y) |
| (Lsh8x(32|16|8) x y) -> (Lsh64x64 x (ZeroExt(32|16|8)to64 y)) |
| |
| (Rsh64Ux64 x y) && shiftIsBounded(v) -> (I64ShrU x y) |
| (Rsh64Ux64 x y) -> (Select (I64ShrU x y) (I64Const [0]) (I64LtU y (I64Const [64]))) |
| (Rsh64Ux(32|16|8) x y) -> (Rsh64Ux64 x (ZeroExt(32|16|8)to64 y)) |
| |
| (Rsh32Ux64 x y) -> (Rsh64Ux64 (ZeroExt32to64 x) y) |
| (Rsh32Ux(32|16|8) x y) -> (Rsh64Ux64 (ZeroExt32to64 x) (ZeroExt(32|16|8)to64 y)) |
| |
| (Rsh16Ux64 x y) -> (Rsh64Ux64 (ZeroExt16to64 x) y) |
| (Rsh16Ux(32|16|8) x y) -> (Rsh64Ux64 (ZeroExt16to64 x) (ZeroExt(32|16|8)to64 y)) |
| |
| (Rsh8Ux64 x y) -> (Rsh64Ux64 (ZeroExt8to64 x) y) |
| (Rsh8Ux(32|16|8) x y) -> (Rsh64Ux64 (ZeroExt8to64 x) (ZeroExt(32|16|8)to64 y)) |
| |
| // Signed right shift needs to return 0/-1 if shift amount is >= width of shifted value. |
| // We implement this by setting the shift value to (width - 1) if the shift value is >= width. |
| |
| (Rsh64x64 x y) && shiftIsBounded(v) -> (I64ShrS x y) |
| (Rsh64x64 x y) -> (I64ShrS x (Select <typ.Int64> y (I64Const [63]) (I64LtU y (I64Const [64])))) |
| (Rsh64x(32|16|8) x y) -> (Rsh64x64 x (ZeroExt(32|16|8)to64 y)) |
| |
| (Rsh32x64 x y) -> (Rsh64x64 (SignExt32to64 x) y) |
| (Rsh32x(32|16|8) x y) -> (Rsh64x64 (SignExt32to64 x) (ZeroExt(32|16|8)to64 y)) |
| |
| (Rsh16x64 x y) -> (Rsh64x64 (SignExt16to64 x) y) |
| (Rsh16x(32|16|8) x y) -> (Rsh64x64 (SignExt16to64 x) (ZeroExt(32|16|8)to64 y)) |
| |
| (Rsh8x64 x y) -> (Rsh64x64 (SignExt8to64 x) y) |
| (Rsh8x(32|16|8) x y) -> (Rsh64x64 (SignExt8to64 x) (ZeroExt(32|16|8)to64 y)) |
| |
| // Lowering rotates |
| (RotateLeft8 <t> x (I64Const [c])) -> (Or8 (Lsh8x64 <t> x (I64Const [c&7])) (Rsh8Ux64 <t> x (I64Const [-c&7]))) |
| (RotateLeft16 <t> x (I64Const [c])) -> (Or16 (Lsh16x64 <t> x (I64Const [c&15])) (Rsh16Ux64 <t> x (I64Const [-c&15]))) |
| (RotateLeft32 <t> x (I64Const [c])) -> (Or32 (Lsh32x64 <t> x (I64Const [c&31])) (Rsh32Ux64 <t> x (I64Const [-c&31]))) |
| |
| // Lowering comparisons |
| (Less64 x y) -> (I64LtS x y) |
| (Less32 x y) -> (I64LtS (SignExt32to64 x) (SignExt32to64 y)) |
| (Less16 x y) -> (I64LtS (SignExt16to64 x) (SignExt16to64 y)) |
| (Less8 x y) -> (I64LtS (SignExt8to64 x) (SignExt8to64 y)) |
| (Less64U x y) -> (I64LtU x y) |
| (Less32U x y) -> (I64LtU (ZeroExt32to64 x) (ZeroExt32to64 y)) |
| (Less16U x y) -> (I64LtU (ZeroExt16to64 x) (ZeroExt16to64 y)) |
| (Less8U x y) -> (I64LtU (ZeroExt8to64 x) (ZeroExt8to64 y)) |
| (Less64F x y) -> (F64Lt x y) |
| (Less32F x y) -> (F64Lt (LoweredRound32F x) (LoweredRound32F y)) |
| |
| (Leq64 x y) -> (I64LeS x y) |
| (Leq32 x y) -> (I64LeS (SignExt32to64 x) (SignExt32to64 y)) |
| (Leq16 x y) -> (I64LeS (SignExt16to64 x) (SignExt16to64 y)) |
| (Leq8 x y) -> (I64LeS (SignExt8to64 x) (SignExt8to64 y)) |
| (Leq64U x y) -> (I64LeU x y) |
| (Leq32U x y) -> (I64LeU (ZeroExt32to64 x) (ZeroExt32to64 y)) |
| (Leq16U x y) -> (I64LeU (ZeroExt16to64 x) (ZeroExt16to64 y)) |
| (Leq8U x y) -> (I64LeU (ZeroExt8to64 x) (ZeroExt8to64 y)) |
| (Leq64F x y) -> (F64Le x y) |
| (Leq32F x y) -> (F64Le (LoweredRound32F x) (LoweredRound32F y)) |
| |
| (Greater64 x y) -> (I64GtS x y) |
| (Greater32 x y) -> (I64GtS (SignExt32to64 x) (SignExt32to64 y)) |
| (Greater16 x y) -> (I64GtS (SignExt16to64 x) (SignExt16to64 y)) |
| (Greater8 x y) -> (I64GtS (SignExt8to64 x) (SignExt8to64 y)) |
| (Greater64U x y) -> (I64GtU x y) |
| (Greater32U x y) -> (I64GtU (ZeroExt32to64 x) (ZeroExt32to64 y)) |
| (Greater16U x y) -> (I64GtU (ZeroExt16to64 x) (ZeroExt16to64 y)) |
| (Greater8U x y) -> (I64GtU (ZeroExt8to64 x) (ZeroExt8to64 y)) |
| (Greater64F x y) -> (F64Gt x y) |
| (Greater32F x y) -> (F64Gt (LoweredRound32F x) (LoweredRound32F y)) |
| |
| (Geq64 x y) -> (I64GeS x y) |
| (Geq32 x y) -> (I64GeS (SignExt32to64 x) (SignExt32to64 y)) |
| (Geq16 x y) -> (I64GeS (SignExt16to64 x) (SignExt16to64 y)) |
| (Geq8 x y) -> (I64GeS (SignExt8to64 x) (SignExt8to64 y)) |
| (Geq64U x y) -> (I64GeU x y) |
| (Geq32U x y) -> (I64GeU (ZeroExt32to64 x) (ZeroExt32to64 y)) |
| (Geq16U x y) -> (I64GeU (ZeroExt16to64 x) (ZeroExt16to64 y)) |
| (Geq8U x y) -> (I64GeU (ZeroExt8to64 x) (ZeroExt8to64 y)) |
| (Geq64F x y) -> (F64Ge x y) |
| (Geq32F x y) -> (F64Ge (LoweredRound32F x) (LoweredRound32F y)) |
| |
| (Eq64 x y) -> (I64Eq x y) |
| (Eq32 x y) -> (I64Eq (ZeroExt32to64 x) (ZeroExt32to64 y)) |
| (Eq16 x y) -> (I64Eq (ZeroExt16to64 x) (ZeroExt16to64 y)) |
| (Eq8 x y) -> (I64Eq (ZeroExt8to64 x) (ZeroExt8to64 y)) |
| (EqB x y) -> (I64Eq x y) |
| (EqPtr x y) -> (I64Eq x y) |
| (Eq64F x y) -> (F64Eq x y) |
| (Eq32F x y) -> (F64Eq (LoweredRound32F x) (LoweredRound32F y)) |
| |
| (Neq64 x y) -> (I64Ne x y) |
| (Neq32 x y) -> (I64Ne (ZeroExt32to64 x) (ZeroExt32to64 y)) |
| (Neq16 x y) -> (I64Ne (ZeroExt16to64 x) (ZeroExt16to64 y)) |
| (Neq8 x y) -> (I64Ne (ZeroExt8to64 x) (ZeroExt8to64 y)) |
| (NeqB x y) -> (I64Ne x y) |
| (NeqPtr x y) -> (I64Ne x y) |
| (Neq64F x y) -> (F64Ne x y) |
| (Neq32F x y) -> (F64Ne (LoweredRound32F x) (LoweredRound32F y)) |
| |
| // Lowering loads |
| (Load <t> ptr mem) && is32BitFloat(t) -> (F32Load ptr mem) |
| (Load <t> ptr mem) && is64BitFloat(t) -> (F64Load ptr mem) |
| (Load <t> ptr mem) && t.Size() == 8 -> (I64Load ptr mem) |
| (Load <t> ptr mem) && t.Size() == 4 && !t.IsSigned() -> (I64Load32U ptr mem) |
| (Load <t> ptr mem) && t.Size() == 4 && t.IsSigned() -> (I64Load32S ptr mem) |
| (Load <t> ptr mem) && t.Size() == 2 && !t.IsSigned() -> (I64Load16U ptr mem) |
| (Load <t> ptr mem) && t.Size() == 2 && t.IsSigned() -> (I64Load16S ptr mem) |
| (Load <t> ptr mem) && t.Size() == 1 && !t.IsSigned() -> (I64Load8U ptr mem) |
| (Load <t> ptr mem) && t.Size() == 1 && t.IsSigned() -> (I64Load8S ptr mem) |
| |
| // Lowering stores |
| (Store {t} ptr val mem) && is64BitFloat(t.(*types.Type)) -> (F64Store ptr val mem) |
| (Store {t} ptr val mem) && is32BitFloat(t.(*types.Type)) -> (F32Store ptr val mem) |
| (Store {t} ptr val mem) && t.(*types.Type).Size() == 8 -> (I64Store ptr val mem) |
| (Store {t} ptr val mem) && t.(*types.Type).Size() == 4 -> (I64Store32 ptr val mem) |
| (Store {t} ptr val mem) && t.(*types.Type).Size() == 2 -> (I64Store16 ptr val mem) |
| (Store {t} ptr val mem) && t.(*types.Type).Size() == 1 -> (I64Store8 ptr val mem) |
| |
| // Lowering moves |
| (Move [0] _ _ mem) -> mem |
| (Move [1] dst src mem) -> (I64Store8 dst (I64Load8U src mem) mem) |
| (Move [2] dst src mem) -> (I64Store16 dst (I64Load16U src mem) mem) |
| (Move [4] dst src mem) -> (I64Store32 dst (I64Load32U src mem) mem) |
| (Move [8] dst src mem) -> (I64Store dst (I64Load src mem) mem) |
| (Move [16] dst src mem) -> |
| (I64Store [8] dst (I64Load [8] src mem) |
| (I64Store dst (I64Load src mem) mem)) |
| (Move [3] dst src mem) -> |
| (I64Store8 [2] dst (I64Load8U [2] src mem) |
| (I64Store16 dst (I64Load16U src mem) mem)) |
| (Move [5] dst src mem) -> |
| (I64Store8 [4] dst (I64Load8U [4] src mem) |
| (I64Store32 dst (I64Load32U src mem) mem)) |
| (Move [6] dst src mem) -> |
| (I64Store16 [4] dst (I64Load16U [4] src mem) |
| (I64Store32 dst (I64Load32U src mem) mem)) |
| (Move [7] dst src mem) -> |
| (I64Store32 [3] dst (I64Load32U [3] src mem) |
| (I64Store32 dst (I64Load32U src mem) mem)) |
| (Move [s] dst src mem) && s > 8 && s < 16 -> |
| (I64Store [s-8] dst (I64Load [s-8] src mem) |
| (I64Store dst (I64Load src mem) mem)) |
| |
| // Adjust moves to be a multiple of 16 bytes. |
| (Move [s] dst src mem) |
| && s > 16 && s%16 != 0 && s%16 <= 8 -> |
| (Move [s-s%16] |
| (OffPtr <dst.Type> dst [s%16]) |
| (OffPtr <src.Type> src [s%16]) |
| (I64Store dst (I64Load src mem) mem)) |
| (Move [s] dst src mem) |
| && s > 16 && s%16 != 0 && s%16 > 8 -> |
| (Move [s-s%16] |
| (OffPtr <dst.Type> dst [s%16]) |
| (OffPtr <src.Type> src [s%16]) |
| (I64Store [8] dst (I64Load [8] src mem) |
| (I64Store dst (I64Load src mem) mem))) |
| |
| // Large copying uses helper. |
| (Move [s] dst src mem) && s%8 == 0 -> |
| (LoweredMove [s/8] dst src mem) |
| |
| // Lowering Zero instructions |
| (Zero [0] _ mem) -> mem |
| (Zero [1] destptr mem) -> (I64Store8 destptr (I64Const [0]) mem) |
| (Zero [2] destptr mem) -> (I64Store16 destptr (I64Const [0]) mem) |
| (Zero [4] destptr mem) -> (I64Store32 destptr (I64Const [0]) mem) |
| (Zero [8] destptr mem) -> (I64Store destptr (I64Const [0]) mem) |
| |
| (Zero [3] destptr mem) -> |
| (I64Store8 [2] destptr (I64Const [0]) |
| (I64Store16 destptr (I64Const [0]) mem)) |
| (Zero [5] destptr mem) -> |
| (I64Store8 [4] destptr (I64Const [0]) |
| (I64Store32 destptr (I64Const [0]) mem)) |
| (Zero [6] destptr mem) -> |
| (I64Store16 [4] destptr (I64Const [0]) |
| (I64Store32 destptr (I64Const [0]) mem)) |
| (Zero [7] destptr mem) -> |
| (I64Store32 [3] destptr (I64Const [0]) |
| (I64Store32 destptr (I64Const [0]) mem)) |
| |
| // Strip off any fractional word zeroing. |
| (Zero [s] destptr mem) && s%8 != 0 && s > 8 -> |
| (Zero [s-s%8] (OffPtr <destptr.Type> destptr [s%8]) |
| (I64Store destptr (I64Const [0]) mem)) |
| |
| // Zero small numbers of words directly. |
| (Zero [16] destptr mem) -> |
| (I64Store [8] destptr (I64Const [0]) |
| (I64Store destptr (I64Const [0]) mem)) |
| (Zero [24] destptr mem) -> |
| (I64Store [16] destptr (I64Const [0]) |
| (I64Store [8] destptr (I64Const [0]) |
| (I64Store destptr (I64Const [0]) mem))) |
| (Zero [32] destptr mem) -> |
| (I64Store [24] destptr (I64Const [0]) |
| (I64Store [16] destptr (I64Const [0]) |
| (I64Store [8] destptr (I64Const [0]) |
| (I64Store destptr (I64Const [0]) mem)))) |
| |
| // Large zeroing uses helper. |
| (Zero [s] destptr mem) && s%8 == 0 && s > 32 -> |
| (LoweredZero [s/8] destptr mem) |
| |
| // Lowering constants |
| (Const(64|32|16|8) [val]) -> (I64Const [val]) |
| (Const(64|32)F [val]) -> (F64Const [val]) |
| (ConstNil) -> (I64Const [0]) |
| (ConstBool [b]) -> (I64Const [b]) |
| |
| // Lowering calls |
| (StaticCall [argwid] {target} mem) -> (LoweredStaticCall [argwid] {target} mem) |
| (ClosureCall [argwid] entry closure mem) -> (LoweredClosureCall [argwid] entry closure mem) |
| (InterCall [argwid] entry mem) -> (LoweredInterCall [argwid] entry mem) |
| |
| // Miscellaneous |
| (Convert <t> x mem) -> (LoweredConvert <t> x mem) |
| (IsNonNil p) -> (I64Eqz (I64Eqz p)) |
| (IsInBounds idx len) -> (I64LtU idx len) |
| (IsSliceInBounds idx len) -> (I64LeU idx len) |
| (NilCheck ptr mem) -> (LoweredNilCheck ptr mem) |
| (GetClosurePtr) -> (LoweredGetClosurePtr) |
| (GetCallerPC) -> (LoweredGetCallerPC) |
| (GetCallerSP) -> (LoweredGetCallerSP) |
| (Addr {sym} base) -> (LoweredAddr {sym} base) |
| (LocalAddr {sym} base _) -> (LoweredAddr {sym} base) |
| |
| // Write barrier. |
| (WB {fn} destptr srcptr mem) -> (LoweredWB {fn} destptr srcptr mem) |
| |
| // --- Intrinsics --- |
| (Sqrt x) -> (F64Sqrt x) |
| (Trunc x) -> (F64Trunc x) |
| (Ceil x) -> (F64Ceil x) |
| (Floor x) -> (F64Floor x) |
| (RoundToEven x) -> (F64Nearest x) |
| (Abs x) -> (F64Abs x) |
| (Copysign x y) -> (F64Copysign x y) |
| |
| (Ctz64 x) -> (I64Ctz x) |
| (Ctz32 x) -> (I64Ctz (I64Or x (I64Const [0x100000000]))) |
| (Ctz16 x) -> (I64Ctz (I64Or x (I64Const [0x10000]))) |
| (Ctz8 x) -> (I64Ctz (I64Or x (I64Const [0x100]))) |
| |
| (Ctz(64|32|16|8)NonZero x) -> (I64Ctz x) |
| |
| (BitLen64 x) -> (I64Sub (I64Const [64]) (I64Clz x)) |
| |
| (RotateLeft64 x y) -> (I64Rotl x y) |
| |
| (PopCount64 x) -> (I64Popcnt x) |
| (PopCount32 x) -> (I64Popcnt (ZeroExt32to64 x)) |
| (PopCount16 x) -> (I64Popcnt (ZeroExt16to64 x)) |
| (PopCount8 x) -> (I64Popcnt (ZeroExt8to64 x)) |
| |
| (CondSelect <t> x y cond) -> (Select <t> x y cond) |
| |
| // --- Optimizations --- |
| (I64Add (I64Const [x]) (I64Const [y])) -> (I64Const [x + y]) |
| (I64Mul (I64Const [x]) (I64Const [y])) -> (I64Const [x * y]) |
| (I64And (I64Const [x]) (I64Const [y])) -> (I64Const [x & y]) |
| (I64Or (I64Const [x]) (I64Const [y])) -> (I64Const [x | y]) |
| (I64Xor (I64Const [x]) (I64Const [y])) -> (I64Const [x ^ y]) |
| (F64Add (F64Const [x]) (F64Const [y])) -> (F64Const [auxFrom64F(auxTo64F(x) + auxTo64F(y))]) |
| (F64Mul (F64Const [x]) (F64Const [y])) -> (F64Const [auxFrom64F(auxTo64F(x) * auxTo64F(y))]) |
| (I64Eq (I64Const [x]) (I64Const [y])) && x == y -> (I64Const [1]) |
| (I64Eq (I64Const [x]) (I64Const [y])) && x != y -> (I64Const [0]) |
| (I64Ne (I64Const [x]) (I64Const [y])) && x == y -> (I64Const [0]) |
| (I64Ne (I64Const [x]) (I64Const [y])) && x != y -> (I64Const [1]) |
| |
| (I64Shl (I64Const [x]) (I64Const [y])) -> (I64Const [x << uint64(y)]) |
| (I64ShrU (I64Const [x]) (I64Const [y])) -> (I64Const [int64(uint64(x) >> uint64(y))]) |
| (I64ShrS (I64Const [x]) (I64Const [y])) -> (I64Const [x >> uint64(y)]) |
| |
| (I64Add (I64Const [x]) y) -> (I64Add y (I64Const [x])) |
| (I64Mul (I64Const [x]) y) -> (I64Mul y (I64Const [x])) |
| (I64And (I64Const [x]) y) -> (I64And y (I64Const [x])) |
| (I64Or (I64Const [x]) y) -> (I64Or y (I64Const [x])) |
| (I64Xor (I64Const [x]) y) -> (I64Xor y (I64Const [x])) |
| (F64Add (F64Const [x]) y) -> (F64Add y (F64Const [x])) |
| (F64Mul (F64Const [x]) y) -> (F64Mul y (F64Const [x])) |
| (I64Eq (I64Const [x]) y) -> (I64Eq y (I64Const [x])) |
| (I64Ne (I64Const [x]) y) -> (I64Ne y (I64Const [x])) |
| |
| (I64Eq x (I64Const [0])) -> (I64Eqz x) |
| (I64Ne x (I64Const [0])) -> (I64Eqz (I64Eqz x)) |
| |
| (I64Add x (I64Const [y])) -> (I64AddConst [y] x) |
| (I64AddConst [0] x) -> x |
| (I64Eqz (I64Eqz (I64Eqz x))) -> (I64Eqz x) |
| |
| // folding offset into load/store |
| ((I64Load|I64Load32U|I64Load32S|I64Load16U|I64Load16S|I64Load8U|I64Load8S) [off] (I64AddConst [off2] ptr) mem) |
| && isU32Bit(off+off2) -> |
| ((I64Load|I64Load32U|I64Load32S|I64Load16U|I64Load16S|I64Load8U|I64Load8S) [off+off2] ptr mem) |
| |
| ((I64Store|I64Store32|I64Store16|I64Store8) [off] (I64AddConst [off2] ptr) val mem) |
| && isU32Bit(off+off2) -> |
| ((I64Store|I64Store32|I64Store16|I64Store8) [off+off2] ptr val mem) |
| |
| // folding offset into address |
| (I64AddConst [off] (LoweredAddr {sym} [off2] base)) && isU32Bit(off+off2) -> |
| (LoweredAddr {sym} [off+off2] base) |
| |
| // transforming readonly globals into constants |
| (I64Load [off] (LoweredAddr {sym} [off2] (SB)) _) && symIsRO(sym) && isU32Bit(off+off2) -> (I64Const [int64(read64(sym, off+off2, config.BigEndian))]) |
| (I64Load32U [off] (LoweredAddr {sym} [off2] (SB)) _) && symIsRO(sym) && isU32Bit(off+off2) -> (I64Const [int64(read32(sym, off+off2, config.BigEndian))]) |
| (I64Load16U [off] (LoweredAddr {sym} [off2] (SB)) _) && symIsRO(sym) && isU32Bit(off+off2) -> (I64Const [int64(read16(sym, off+off2, config.BigEndian))]) |
| (I64Load8U [off] (LoweredAddr {sym} [off2] (SB)) _) && symIsRO(sym) && isU32Bit(off+off2) -> (I64Const [int64(read8(sym, off+off2))]) |
