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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
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// Copyright 2020 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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// Check to make sure we don't try to constant fold a divide by zero.
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// This is a tricky test, as we need a value that's not recognized as 0
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// until lowering (otherwise it gets handled in a different path).
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package p
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func f() {
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var i int
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var s string
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for i > 0 {
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_ = s[0]
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i++
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}
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var c chan int
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c <- 1 % i
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}
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func f32() uint32 {
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s := "\x00\x00\x00\x00"
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c := uint32(s[0]) | uint32(s[1])<<8 | uint32(s[2])<<16 | uint32(s[3])<<24
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return 1 / c
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}
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func f64() uint64 {
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s := "\x00\x00\x00\x00\x00\x00\x00\x00"
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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
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return 1 / c
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}
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