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go/test/abi/s_sif_sif.go
David Chase 382851c1fd cmd/compile: fix failure to communicate between ABIinfo producer&consumer
ABI info producer and consumer had different ideas for register
order for parameters.

Includes a test, includes improvements to debugging output.

Updates #44816.

Change-Id: I4812976f7a6c08d6fc02aac1ec0544b1f141cca6
Reviewed-on: https://go-review.googlesource.com/c/go/+/299570
Trust: David Chase <drchase@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>
2021-03-09 18:45:05 +00:00

38 lines
667 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
// Test ensures that abi information producer and consumer agree about the
// order of registers for inputs. T's registers should be I0, F0, I1, F1.
import "fmt"
type P struct {
a int8
x float64
}
type T struct {
d, e P
}
//go:registerparams
//go:noinline
func G(t T) float64 {
return float64(t.d.a+t.e.a) + t.d.x + t.e.x
}
func main() {
x := G(T{P{10, 20}, P{30, 40}})
if x != 100.0 {
fmt.Printf("FAIL, Expected 100, got %f\n", x)
}
}