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https://github.com/golang/go
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23e8e197b0
When loading multiple elements of an array into a single register, make sure we treat them as unsigned. When treated as signed, the upper bits might all be set, causing the shift-or combo to clobber the values higher in the register. Fixes #23719. Change-Id: Ic87da03e9bd0fe2c60bb214b99f846e4e9446052 Reviewed-on: https://go-review.googlesource.com/92335 Run-TryBot: Keith Randall <khr@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ilya Tocar <ilya.tocar@intel.com>
43 lines
826 B
Go
43 lines
826 B
Go
// run
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// Copyright 2018 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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func main() {
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v1 := [2]int32{-1, 88}
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v2 := [2]int32{-1, 99}
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if v1 == v2 {
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panic("bad comparison")
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}
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w1 := [2]int16{-1, 88}
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w2 := [2]int16{-1, 99}
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if w1 == w2 {
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panic("bad comparison")
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}
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x1 := [4]int16{-1, 88, 88, 88}
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x2 := [4]int16{-1, 99, 99, 99}
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if x1 == x2 {
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panic("bad comparison")
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}
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a1 := [2]int8{-1, 88}
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a2 := [2]int8{-1, 99}
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if a1 == a2 {
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panic("bad comparison")
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}
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b1 := [4]int8{-1, 88, 88, 88}
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b2 := [4]int8{-1, 99, 99, 99}
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if b1 == b2 {
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panic("bad comparison")
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}
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c1 := [8]int8{-1, 88, 88, 88, 88, 88, 88, 88}
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c2 := [8]int8{-1, 99, 99, 99, 99, 99, 99, 99}
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if c1 == c2 {
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panic("bad comparison")
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}
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}
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