mirror of
https://github.com/golang/go
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42 lines
677 B
Go
42 lines
677 B
Go
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// run
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// Copyright 2024 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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import "fmt"
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func main() {
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testMod()
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testMul()
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}
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//go:noinline
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func mod3(x uint32) uint64 {
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return uint64(x % 3)
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}
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func testMod() {
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got := mod3(1<<32 - 1)
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want := uint64((1<<32 - 1) % 3)
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if got != want {
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fmt.Printf("testMod: got %x want %x\n", got, want)
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}
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}
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//go:noinline
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func mul3(a uint32) uint64 {
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return uint64(a * 3)
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}
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func testMul() {
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got := mul3(1<<32 - 1)
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want := uint64((1<<32-1)*3 - 2<<32)
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if got != want {
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fmt.Printf("testMul: got %x want %x\n", got, want)
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}
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}
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