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compiler: optimize struct copy a bit

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POPITEM is cheaper than PUSH + PICKITEM.
This commit is contained in:
Evgeniy Stratonikov 2021-01-18 16:19:09 +03:00
parent 324107b31e
commit f0fe03117a
1 changed files with 1 additions and 1 deletions
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pkg/compiler/codegen.go
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@ -852,7 +852,7 @@ func (c *codegen) Visit(node ast.Node) ast.Visitor {
// This way even non-pointer struct fields will be copied. // This way even non-pointer struct fields will be copied.
emit.Opcodes(c.prog.BinWriter, opcode.NEWARRAY0, emit.Opcodes(c.prog.BinWriter, opcode.NEWARRAY0,
opcode.DUP, opcode.ROT, opcode.APPEND, opcode.DUP, opcode.ROT, opcode.APPEND,
opcode.PUSH0, opcode.PICKITEM) opcode.POPITEM)
} }
} }
// Do not swap for builtin functions. // Do not swap for builtin functions.