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cmd/compile: remove I-saw-a-register-pragma chatter

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It is not multithreaded-compilation-safe, and also seems
to cause problems on the noopt-builder.

Change-Id: I52dbcd507d256990f1ec7c8040ec7b76595aae4f
Reviewed-on: https://go-review.googlesource.com/c/go/+/298850
Trust: David Chase <drchase@google.com>
Run-TryBot: David Chase <drchase@google.com>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
This commit is contained in:
David Chase 2021-03-04 16:38:20 -05:00
parent c015f76acb
commit 9d3718e834
5 changed files with 0 additions and 78 deletions
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4
src/cmd/compile/internal/ssagen/ssa.go
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@ -230,7 +230,6 @@ func abiForFunc(fn *ir.Func, abi0, abi1 *abi.ABIConfig) *abi.ABIConfig {
base.ErrorfAt(fn.Pos(), "Calls to //go:registerparams method %s won't work, remove the pragma from the declaration.", name)
}
a = abi1
base.WarnfAt(fn.Pos(), "declared function %v has register params", fn)
}
return a
}
@ -4850,9 +4849,6 @@ func (s *state) call(n *ir.CallExpr, k callKind, returnResultAddr bool) *ssa.Val
inRegistersImported := fn.Pragma()&ir.RegisterParams != 0
inRegistersSamePackage := fn.Func != nil && fn.Func.Pragma&ir.RegisterParams != 0
inRegisters = inRegistersImported || inRegistersSamePackage
if inRegisters {
s.f.Warnl(n.Pos(), "called function %v has register params", callee)
}
break
}
closure = s.expr(fn)

36
test/abi/regabipragma.dir/main.go
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@ -1,36 +0,0 @@
// 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"
"regabipragma.dir/tmp"
)
type S string
//go:noinline
func (s S) ff(t string) string {
return string(s) + " " + t
}
//go:noinline
//go:registerparams
func f(s,t string) string { // ERROR "Declared function f has register params"
return s + " " + t
}
func check(s string) {
if s != "Hello world!" {
fmt.Printf("FAIL, wanted 'Hello world!' but got '%s'\n", s)
}
}
func main() {
check(f("Hello", "world!")) // ERROR "Called function ...f has register params"
check(tmp.F("Hello", "world!")) // ERROR "Called function regabipragma.dir/tmp.F has register params"
check(S("Hello").ff("world!"))
check(tmp.S("Hello").FF("world!"))
}

19
test/abi/regabipragma.dir/tmp/foo.go
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@ -1,19 +0,0 @@
// 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 tmp
type S string
//go:noinline
func (s S) FF(t string) string {
return string(s) + " " + t
}
//go:noinline
//go:registerparams
func F(s,t string) string {
return s + " " + t
}

13
test/abi/regabipragma.go
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@ -1,13 +0,0 @@
// skip
// runindir -gcflags=-c=1
//go:build !windows
// +build !windows
// 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.
// TODO(register args) Temporarily disabled now that register abi info is flowing halfway through the compiler.
// TODO(register args) May delete or adapt this test once regabi is the default
package ignore

6
test/abi/regabipragma.out
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@ -1,6 +0,0 @@
# regabipragma.dir/tmp
tmp/foo.go:17:6: declared function F has register params
# regabipragma.dir
./main.go:21:6: declared function f has register params
./main.go:32:9: called function f has register params
./main.go:33:13: called function tmp.F has register params