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go/test/prove_constant_folding.go
Dmitri Shuralyov b2fd76ab8d test: migrate remaining files to go:build syntax
Most of the test cases in the test directory use the new go:build syntax
already. Convert the rest. In general, try to place the build constraint
line below the test directive comment in more places.

For #41184.
For #60268.

Change-Id: I11c41a0642a8a26dc2eda1406da908645bbc005b
Cq-Include-Trybots: luci.golang.try:gotip-linux-386-longtest,gotip-linux-amd64-longtest,gotip-windows-amd64-longtest
Reviewed-on: https://go-review.googlesource.com/c/go/+/536236
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2023-10-19 23:33:25 +00:00

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// errorcheck -0 -d=ssa/prove/debug=2
//go:build amd64
// Copyright 2022 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 f0i(x int) int {
if x == 20 {
return x // ERROR "Proved.+is constant 20$"
}
if (x + 20) == 20 {
return x + 5 // ERROR "Proved.+is constant 0$"
}
return x / 2
}
func f0u(x uint) uint {
if x == 20 {
return x // ERROR "Proved.+is constant 20$"
}
if (x + 20) == 20 {
return x + 5 // ERROR "Proved.+is constant 0$"
}
return x / 2
}