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go/test/fixedbugs/issue58161.go
Jorropo 0d8d181bd5 cmd/compile: use MakeResult in empty MakeSlice elimination
This gets eliminated by thoses rules above:
  // for rewriting results of some late-expanded rewrites (below)
  (SelectN [0] (MakeResult x ___)) => x
  (SelectN [1] (MakeResult x y ___)) => y
  (SelectN [2] (MakeResult x y z ___)) => z

Fixes #58161

Change-Id: I4fbfd52c72c06b6b3db906bd9910b6dbb7fe8975
Reviewed-on: https://go-review.googlesource.com/c/go/+/463846
Reviewed-by: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
2023-02-08 22:31:12 +00:00

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Go

// compile -d=ssa/check/seed=1
// 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 main
func F[G int]() int {
return len(make([]int, copy([]G{}, []G{})))
}
func main() {
F[int]()
}