[compiler:gccgo] skip # gccgo assumes cross-compilation is always possible

env GOOS=windwos # intentional misspelling of windows

! go build -n exclude

[compiler:gccgo] skip 'gccgo has no standard packages'
go build -tags 'tag1 tag2' math
! go build -tags 'tag1,tag2 tag3' math

	atomic.AddUint32(&Sink, 1)
	for time.Since(start) < dt {
		// When using gccgo the loop of mutex operations is
		// not preemptible. This can cause the loop to block a GC,
		// causing the time limits in TestDeltaContentionz to fail.
		// Since this loop is not very realistic, when using
		// gccgo add preemption points 100 times a second.
		t1 := time.Now()

[short] skip
[!cgo] skip
[compiler:gccgo] skip # gccgo has no cover tool

# Test coverage on cgo code.

go test -short -cover cgocover
stdout  'coverage:.*[1-9][0-9.]+%'
! stderr '[^0-9]0\.0%'

-- go.mod --
module cgocover

go 1.16
-- p.go --
package p

/*
void
f(void)
{
}
*/
import "C"

var b bool

func F() {
	if b {
		for {
		}
	}
	C.f()
}
-- p_test.go --

[short] skip
[compiler:gccgo] skip # gccgo has no cover tool

go test -coverpkg=coverdot/a,coverdot/b coverdot/b
! stderr '[^0-9]0\.0%'
! stdout '[^0-9]0\.0%'

-- go.mod --
module coverdot

go 1.16
-- a/a.go --
package a

func F() {}
-- b/b.go --
package b

import . "coverdot/a"

func G() { F() }
-- b/b_test.go --
package b

import "testing"

func TestG(t *testing.T) {
	G()

// Copyright 2015 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.

//go:build gccgo

package main

func useVFPv1() {}

func useVFPv3() {}

[short] skip
[!cgo] skip
[compiler:gccgo] skip # gccgo has no cover tool

# Test cgo coverage with an external test.

go test -short -cover cgocover2
stdout  'coverage:.*[1-9][0-9.]+%'
! stderr '[^0-9]0\.0%'

-- go.mod --
module cgocover2

go 1.16
-- p.go --
package p

/*
void
f(void)
{
}
*/
import "C"

var b bool

func F() {
	if b {
		for {
		}
	}
	C.f()
}

env GO111MODULE=off

# Test that the user can override default code generation flags.

[compiler:gccgo] skip  # gccgo does not use -gcflags
[!cgo] skip
[!GOOS:linux] skip  # test only works if c-archive implies -shared
[short] skip

env GOCACHE=$WORK/gocache  # Looking for compile commands, so need a clean cache.
go build -x -n -buildmode=c-archive -gcflags=all=-shared=false ./override.go
stderr '^.*/compile (.* )?-shared (.* )?-shared=false'

// 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.

//go:build linux && gccgo && arm

package unix

import (
	"syscall"
	"unsafe"
)

func seek(fd int, offset int64, whence int) (int64, syscall.Errno) {
	var newoffset int64
	offsetLow := uint32(offset & 0xffffffff)
	offsetHigh := uint32((offset >> 32) & 0xffffffff)

[compiler:gccgo] skip 'gccgo has no cover tool'
[short] skip

go test -short -coverpkg=strings strings regexp
! stdout '[^0-9]0\.0%'
stdout  'strings.*coverage:.*[1-9][0-9.]+%'
stdout  'regexp.*coverage:.*[1-9][0-9.]+%'

go test -short -cover strings math regexp
! stdout '[^0-9]0\.0%'
stdout  'strings.*coverage:.*[1-9][0-9.]+%'
stdout  'math.*coverage:.*[1-9][0-9.]+%'