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cmd/compile: don't discard inlineable but empty functions with binary export format
Change-Id: I0f016fa000f949d27847d645b4cdebe68a8abf20 Reviewed-on: https://go-review.googlesource.com/22474 Run-TryBot: Robert Griesemer <gri@golang.org> Reviewed-by: Matthew Dempsky <mdempsky@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org>
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@ -145,7 +145,16 @@ func Import(in *bufio.Reader) {
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if f := p.funcList[i]; f != nil {
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// function not yet imported - read body and set it
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funchdr(f)
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f.Func.Inl.Set(p.stmtList())
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body := p.stmtList()
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if body == nil {
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// Make sure empty body is not interpreted as
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// no inlineable body (see also parser.fnbody)
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// (not doing so can cause significant performance
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// degradation due to unnecessary calls to empty
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// functions).
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body = []*Node{Nod(OEMPTY, nil, nil)}
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}
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f.Func.Inl.Set(body)
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funcbody(f)
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} else {
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// function already imported - read body but discard declarations
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