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b60bf8f8e1
Right shifts, for some odd reasons, can encode shifts of constant 1-32 instead of 0-31. Left shifts, however, can encode shifts 0-31. When the shift amount is 0, arm recommends encoding right shifts using left shifts. Fixes #64715 Change-Id: Id3825349aa7195028037893dfe01fa0e405eaa51 Reviewed-on: https://go-review.googlesource.com/c/go/+/549955 Reviewed-by: Cherry Mui <cherryyz@google.com> Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Keith Randall <khr@google.com>
26 lines
401 B
Go
26 lines
401 B
Go
// run
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// Copyright 2023 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 boolInt32(b bool) int32 {
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if b {
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return 1
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}
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return 0
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}
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func f(left uint16, right int32) (r uint16) {
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return left >> right
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}
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var n = uint16(65535)
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func main() {
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println(f(n, boolInt32(int64(n^n) > 1)))
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}
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