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go/test/abi/fibish2.go
David Chase 0ec2c4abba cmd/compile: (fixed) spill output parameters passed in registers as autos
Repair of CL 300749.

ALSO:
found evidence that stack maps for bodyless methods are wrong.
gofmt in test/abi
removed never-executed code in types/size.go

Updates #44816.
Updates #40724.

Change-Id: Ifeb5fee60f60e7c7b58ee0457f58a3265d6cf3f6
Reviewed-on: https://go-review.googlesource.com/c/go/+/302071
Trust: David Chase <drchase@google.com>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
2021-03-16 19:22:44 +00:00

41 lines
935 B
Go

// run
//go:build !wasm
// +build !wasm
// 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.
package main
import "fmt"
// Test that register results are correctly returned (and passed)
type MagicLastTypeNameForTestingRegisterABI func(int, MagicLastTypeNameForTestingRegisterABI) int
//go:registerparams
//go:noinline
func minus(decrement int) MagicLastTypeNameForTestingRegisterABI {
return MagicLastTypeNameForTestingRegisterABI(func(x int, _ MagicLastTypeNameForTestingRegisterABI) int { return x - decrement })
}
//go:noinline
func f(x int, sub1 MagicLastTypeNameForTestingRegisterABI) (int, int) {
if x < 3 {
return 0, x
}
a, b := f(sub1(sub1(x, sub1), sub1), sub1)
c, d := f(sub1(x, sub1), sub1)
return a + d, b + c
}
func main() {
x := 40
a, b := f(x, minus(1))
fmt.Printf("f(%d)=%d,%d\n", x, a, b)
}