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915c1839fe
Separate patterns in asmcheck by spaces instead of commas. Many patterns end in comma (like "MOV [$]123,") so separating patterns by comma is not great; they're already quoted, so spaces are fine. Also replace all tabs in the assembly lines with spaces before matching. Finally, replace \$ or \\$ with [$] as the matching idiom. The effect of all these is to make the patterns look like: // amd64:"BSFQ" "ORQ [$]256" instead of the old: // amd64:"BSFQ","ORQ\t\\$256" Update all tests as well. Change-Id: Ia39febe5d7f67ba115846422789e11b185d5c807 Reviewed-on: https://go-review.googlesource.com/c/go/+/716060 LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Alan Donovan <adonovan@google.com> Reviewed-by: Jorropo <jorropo.pgm@gmail.com>
44 lines
1.1 KiB
Go
44 lines
1.1 KiB
Go
// asmcheck
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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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// Make sure a pointer variable and a zero-sized variable
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// aren't allocated to the same stack slot.
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// See issue 24993.
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package codegen
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func zeroSize() {
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c := make(chan struct{})
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// amd64:`MOVQ \$0, command-line-arguments\.s\+56\(SP\)`
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var s *int
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// force s to be a stack object, also use some (fixed) stack space
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g(&s, 1, 2, 3, 4, 5)
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// amd64:`LEAQ command-line-arguments\..*\+55\(SP\)`
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c <- noliteral(struct{}{})
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}
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// Like zeroSize, but without hiding the zero-sized struct.
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func zeroSize2() {
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c := make(chan struct{})
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// amd64:`MOVQ \$0, command-line-arguments\.s\+48\(SP\)`
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var s *int
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// force s to be a stack object, also use some (fixed) stack space
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g(&s, 1, 2, 3, 4, 5)
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// amd64:`LEAQ command-line-arguments\..*stmp_\d+\(SB\)`
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c <- struct{}{}
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}
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//go:noinline
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func g(**int, int, int, int, int, int) {}
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// noliteral prevents the compiler from recognizing a literal value.
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//
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//go:noinline
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func noliteral[T any](t T) T {
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return t
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}
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