X neo/protogen/decode: Help compiler to elmiminate bounds checks by explicitly specifying :hi
See https://github.com/golang/go/issues/19126#issuecomment-358743715. Examples: before after TEXT ·(*GetObject).neoMsgDecode(SB), NOSPLIT, $8-56 // zproto-marshal.go:1914 │TEXT ·(*GetObject).neoMsgDecode(SB), NOSPLIT, $0-56 // zproto-marshal.go:1914 // SUBQ $8, SP │ NO_LOCAL_POINTERS // MOVQ BP, (SP) (BP save) │ // FUNCDATA $0, gclocals·846769608458630ae82546dab39e913e(SB) (args) // LEAQ (SP), BP (BP init) │ // FUNCDATA $1, gclocals·33cdeccccebe80329f1fdbee7f5874cb(SB) (no locals) // FUNCDATA $0, gclocals·21e863e2261befa92f8534560680bbb6(SB) (args) │ MOVQ data+24(SP), AX FUNCDATA $1, gclocals·69c1753bd5f81501d95132d08af04464(SB) (locals) │ CMPQ AX, $24 // zproto-marshal.go:1915 MOVQ data+32(SP), AX │ JGE pc45 CMPQ AX, $24 // zproto-marshal.go:1915 │ MOVQ ·ErrDecodeOverflow+8(SB), AX // zproto-marshal.go:1924 JLT pc163 │ MOVQ ·ErrDecodeOverflow(SB), CX MOVQ data+24(SP), CX │ MOVQ $0, _r1+40(SP) MOVQ (CX), DX // zproto-marshal.go:1918 │ MOVQ CX, _r2+48(SP) BSWAPQ DX │ MOVQ AX, _r2+56(SP) MOVQ p+16(SP), BX │ RET MOVQ DX, (BX) │pc45: LEAQ -8(AX), DX // zproto-marshal.go:1919 │ MOVQ data+16(SP), AX MOVQ data+40(SP), SI │ MOVQ (AX), CX // zproto-marshal.go:1918 LEAQ -8(SI), DI │ BSWAPQ CX NEGQ DI │ MOVQ p+8(SP), DX SARQ $63, DI │ MOVQ CX, (DX) ANDQ $8, DI │ MOVQ 8(AX), CX // zproto-marshal.go:1919 CMPQ DX, $7 │ BSWAPQ CX JLS pc212 │ MOVQ CX, 8(DX) MOVQ (CX)(DI*1), DX │ MOVQ 16(AX), AX // zproto-marshal.go:1920 BSWAPQ DX │ BSWAPQ AX MOVQ DX, 8(BX) │ MOVQ AX, 16(DX) LEAQ -16(SI), DX // zproto-marshal.go:1920 │ MOVQ $24, _r1+40(SP) // zproto-marshal.go:1921 NEGQ DX │ MOVQ $0, _r2+48(SP) ADDQ $-16, AX │ MOVQ $0, _r2+56(SP) SARQ $63, DX │ RET ANDQ $16, DX │ CMPQ AX, $7 │ JLS pc205 │ MOVQ (CX)(DX*1), AX │ BSWAPQ AX │ MOVQ AX, 16(BX) │ MOVQ $24, _r1+48(SP) // zproto-marshal.go:1921 │ MOVQ $0, _r2+56(SP) │ MOVQ $0, _r2+64(SP) │ // MOVQ (SP), BP (BP restore) │ // ADDQ $8, SP (SP restore) │ RET │ pc163: │ MOVQ ·ErrDecodeOverflow(SB), AX // zproto-marshal.go:1924 │ MOVQ ·ErrDecodeOverflow+8(SB), CX │ MOVQ $0, _r1+48(SP) │ MOVQ AX, _r2+56(SP) │ MOVQ CX, _r2+64(SP) │ // MOVQ (SP), BP (BP restore) │ // ADDQ $8, SP (SP restore) │ RET │ pc205: │ PCDATA $0, $1 // zproto-marshal.go:1920 │ CALL runtime.panicindex(SB) │ UNDEF │ pc212: │ PCDATA $0, $1 // zproto-marshal.go:1919 │ CALL runtime.panicindex(SB) │ UNDEF │
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