go/test/asmhdr.go

// buildrundir

// Copyright 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// Test the -asmhdr output of the compiler.

package ignored
cmd/compile: emit sensible go_asm.h consts for big ints Currently, the compiler will emit any const that doesn't fit in an int64 to go_asm.h like #define const_stackPreempt constant.intVal{val:(*big.Int)(0xc000c06c40)} This happens because dumpasmhdr formats the constant.Value using the verb "%#v". Since constant.Value doesn't implement the GoString() method, this just prints the Go-syntax representation of the value. This happens to work for small integer constants, which go/constant represents directly as an int64, but not for integer constants that don't fit in an int64, which go/constant represents as a big.Int. Make these constants usable by changing the formatting verb to "%v", which will call the String() method, giving a reasonable result in all cases. Change-Id: I365eeb88c8acfc43ff377cc873432269bde3f541 Reviewed-on: https://go-review.googlesource.com/c/go/+/359954 Trust: Austin Clements <austin@google.com> Run-TryBot: Austin Clements <austin@google.com> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: David Chase <drchase@google.com> 2021-08-06 21:01:25 +00:00			`// buildrundir`

			`// Copyright 2021 The Go Authors. All rights reserved.`
			`// Use of this source code is governed by a BSD-style`
			`// license that can be found in the LICENSE file.`

			`// Test the -asmhdr output of the compiler.`

			`package ignored`