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go/test/fixedbugs/issue28688.go
Milan Knezevic c92e73b702 cmd/compile/internal/gc: OMUL should be evaluated when using soft-float
When using soft-float, OMUL might be rewritten to function call
so we should ensure it was evaluated first.

Fixes #28688

Change-Id: I30b87501782fff62d35151f394a1c22b0d490c6c
Reviewed-on: https://go-review.googlesource.com/c/148837
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
2018-11-14 18:52:15 +00:00

32 lines
622 B
Go

// run -gcflags=-d=softfloat
// Copyright 2018 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"
)
// When using soft-float, OMUL might be rewritten to function
// call so we should ensure it was evaluated first. Stack frame
// setup for "test" function call should happen after call to runtime.fmul32
var x int32 = 1
func main() {
var y float32 = 1.0
test(x, y*y)
}
//go:noinline
func test(id int32, a float32) {
if id != x {
fmt.Printf("got: %d, want: %d\n", id, x)
panic("FAIL")
}
}