mirror of
https://github.com/golang/go
synced 2024-11-23 11:00:08 -07:00
6c64b6db68
It just makes the compiler crash. Oops. Fixes #43099 Change-Id: Id996c14799c1a5d0063ecae3b8770568161c2440 Reviewed-on: https://go-review.googlesource.com/c/go/+/276652 Trust: Keith Randall <khr@golang.org> Run-TryBot: Keith Randall <khr@golang.org> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
35 lines
858 B
Go
35 lines
858 B
Go
// compile
|
|
|
|
// Copyright 2020 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.
|
|
|
|
// Check to make sure we don't try to constant fold a divide by zero.
|
|
// This is a tricky test, as we need a value that's not recognized as 0
|
|
// until lowering (otherwise it gets handled in a different path).
|
|
|
|
package p
|
|
|
|
func f() {
|
|
var i int
|
|
var s string
|
|
for i > 0 {
|
|
_ = s[0]
|
|
i++
|
|
}
|
|
|
|
var c chan int
|
|
c <- 1 % i
|
|
}
|
|
|
|
func f32() uint32 {
|
|
s := "\x00\x00\x00\x00"
|
|
c := uint32(s[0]) | uint32(s[1])<<8 | uint32(s[2])<<16 | uint32(s[3])<<24
|
|
return 1 / c
|
|
}
|
|
func f64() uint64 {
|
|
s := "\x00\x00\x00\x00\x00\x00\x00\x00"
|
|
c := uint64(s[0]) | uint64(s[1])<<8 | uint64(s[2])<<16 | uint64(s[3])<<24 | uint64(s[4])<<32 | uint64(s[5])<<40 | uint64(s[6])<<48 | uint64(s[7])<<56
|
|
return 1 / c
|
|
}
|