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go/test/fixedbugs/issue59709.dir/dcache.go
Than McIntosh ea69de9b92 cmd/compile: rework marking of dead hidden closure functions
[This is a roll-forward of CL 484859, this time including a fix for
issue #59709. The call to do dead function marking was taking place in
the wrong spot, causing it to run more than once if generics were
instantiated.]

This patch generalizes the code in the inliner that marks unreferenced
hidden closure functions as dead. Rather than doing the marking on the
fly (previous approach), this new approach does a single pass at the
end of inlining, which catches more dead functions.

Change-Id: I0e079ad755c21295477201acbd7e1a732a98fffd
Reviewed-on: https://go-review.googlesource.com/c/go/+/492016
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Run-TryBot: Than McIntosh <thanm@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
2023-05-05 21:04:28 +00:00

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626 B
Go

// Copyright 2023 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.
package dcache
import (
"./aconfig"
"./bresource"
"./cmem"
)
type Module struct {
cfg *aconfig.Config
err error
last any
}
//go:noinline
func TD() {
}
func (m *Module) Configure(x string) error {
if m.err != nil {
return m.err
}
res := cmem.NewResource(m.cfg)
m.last = res
return nil
}
func (m *Module) Blurb(x string, e error) bool {
res, ok := m.last.(*bresource.Resource[*int])
if !ok {
panic("bad")
}
return bresource.Should(res, e)
}