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The code for converting negative floats was incorrectly loading an FP control word from the stack without ever having stored it there. Thanks to Lars Pensjö for reporting this bug. R=golang-dev, rsc CC=golang-dev https://golang.org/cl/4515091
23 lines
512 B
Go
23 lines
512 B
Go
// $G $D/$F.go && $L $F.$A && ./$A.out || echo BUG: bug341
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// Copyright 2011 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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// Used to panic because 8g was generating incorrect
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// code for converting a negative float to a uint64.
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package main
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func main() {
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var x float32 = -2.5
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_ = uint64(x)
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_ = float32(0)
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}
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/*
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panic: runtime error: floating point error
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[signal 0x8 code=0x6 addr=0x8048c64 pc=0x8048c64]
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*/
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