go defer_recover_results 源码
golang defer_recover_results 代码
文件路径：/test/abi/defer_recover_results.go
// run
// 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 that when a function recovers from a panic, it
// returns the correct results to the caller (in particular,
// setting the result registers correctly).
package main
type S struct {
x uint8
y uint16
z uint32
w float64
}
var a0, b0, c0, d0 = 10, "hello", S{1, 2, 3, 4}, [2]int{111, 222}
//go:noinline
//go:registerparams
func F() (a int, b string, _ int, c S, d [2]int) {
a, b, c, d = a0, b0, c0, d0
defer func() { recover() }()
panic("XXX")
return
}
func main() {
a1, b1, zero, c1, d1 := F()
if a1 != a0 || b1 != b0 || c1 != c0 || d1 != d0 || zero != 0 { // unnamed result gets zero value
panic("FAIL")
}
}
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