File: issue66066.go

package info (click to toggle)
golang-1.24 1.24.4-3
  • links: PTS, VCS
  • area: main
  • in suites: experimental, sid
  • size: 167,820 kB
  • sloc: asm: 154,901; ansic: 7,009; sh: 2,267; javascript: 1,705; perl: 1,052; python: 421; makefile: 110; cpp: 39; f90: 8; awk: 7; objc: 4
file content (41 lines) | stat: -rw-r--r-- 677 bytes parent folder | download | duplicates (12)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
// run

// Copyright 2024 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

import "fmt"

func main() {
	testMod()
	testMul()
}

//go:noinline
func mod3(x uint32) uint64 {
	return uint64(x % 3)
}

func testMod() {
	got := mod3(1<<32 - 1)
	want := uint64((1<<32 - 1) % 3)
	if got != want {
		fmt.Printf("testMod: got %x want %x\n", got, want)
	}

}

//go:noinline
func mul3(a uint32) uint64 {
	return uint64(a * 3)
}

func testMul() {
	got := mul3(1<<32 - 1)
	want := uint64((1<<32-1)*3 - 2<<32)
	if got != want {
		fmt.Printf("testMul: got %x want %x\n", got, want)
	}
}