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These registers are not available for programs to use. Prior to this change, the compiler would crash attempting to use ZR as a general purpose register. Other programs would compile but on execution would overwrite the G register and cause havoc. Fixes linux/arm64 build. Fixes #10304 Fixes #10320 Change-Id: I5cf51d3b77cfe3db7dd6377324950cafb02f8d8b Reviewed-on: https://go-review.googlesource.com/8456 Reviewed-by: Minux Ma <minux@golang.org>
56 lines
890 B
Go
56 lines
890 B
Go
// run
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// Copyright 2015 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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// Issue 10320: 7g failed to compile a program because it attempted
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// to use ZR as register. Other programs compiled but failed to
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// execute correctly because they clobbered the g register.
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package main
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func main() {
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var x00, x01, x02, x03, x04, x05, x06, x07, x08, x09 int
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var x10, x11, x12, x13, x14, x15, x16, x17, x18, x19 int
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var x20, x21, x22, x23, x24, x25, x26, x27, x28, x29 int
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var x30, x31, x32 int
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_ = x00
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_ = x01
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_ = x02
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_ = x03
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_ = x04
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_ = x05
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_ = x06
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_ = x07
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_ = x08
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_ = x09
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_ = x10
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_ = x11
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_ = x12
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_ = x13
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_ = x14
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_ = x15
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_ = x16
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_ = x17
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_ = x18
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_ = x19
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_ = x20
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_ = x21
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_ = x22
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_ = x23
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_ = x24
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_ = x25
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_ = x26
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_ = x27
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_ = x28
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_ = x29
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_ = x30
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_ = x31
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_ = x32
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}
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