mirror of
https://github.com/golang/go
synced 2024-11-24 04:10:14 -07:00
399dcc75a8
Was not re-walking the new AND node, so that its ullman count was wrong, so that the code generator attempted to store values in registers across the call. Fixes #4752. R=ken2 CC=golang-dev https://golang.org/cl/7288054
27 lines
514 B
Go
27 lines
514 B
Go
// run
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// Copyright 2013 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package main
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func F(xi, yi interface{}) uint64 {
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x, y := xi.(uint64), yi.(uint64)
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return x &^ y
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}
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func G(xi, yi interface{}) uint64 {
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return xi.(uint64) &^ yi.(uint64) // generates incorrect code
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}
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func main() {
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var x, y uint64 = 0, 1 << 63
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f := F(x, y)
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g := G(x, y)
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if f != 0 || g != 0 {
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println("F", f, "G", g)
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panic("bad")
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}
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}
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