package runtime

// Compiler is the name of the compiler toolchain that built the
// running binary. Known toolchains are:
//
//	gc      Also known as cmd/compile.
//	gccgo   The gccgo front end, part of the GCC compiler suite.

// license that can be found in the LICENSE file.

//go:build gccgo && !aix && !hurd

#include <errno.h>
#include <stdint.h>
#include <unistd.h>

#define _STRINGIFY2_(x) #x
#define _STRINGIFY_(x) _STRINGIFY2_(x)
#define GOSYM_PREFIX _STRINGIFY_(__USER_LABEL_PREFIX__)

// Call syscall from C code because the gccgo support for calling from
// Go to C does not support varargs functions.

struct ret {

//go:build (386 || amd64 || amd64p32) && gc

package cpu

// cpuid is implemented in cpu_x86.s for gc compiler
// and in cpu_gccgo.c for gccgo.
func cpuid(eaxArg, ecxArg uint32) (eax, ebx, ecx, edx uint32)

// xgetbv with ecx = 0 is implemented in cpu_x86.s for gc compiler
// and in cpu_gccgo.c for gccgo.

go get -x golang.org/x/text/language@14c0d48
! stderr 'compile|cp|gccgo .*language\.a$'

# go get should skip build with no Go files in root
go get golang.org/x/text@14c0d48

# dropping -d, we should see a build.
[short] skip

env GOCACHE=$WORK/gocache  # Looking for compile commands, so need a clean cache.

go build -x golang.org/x/text/language
stderr 'compile|cp|gccgo .*language\.a$'

go clean -cache
exists $GOCACHE/fuzz

# 'go clean -fuzzcache' should delete the fuzz cache but not the build cache.
go build -x ./empty
stderr '(compile|gccgo)( |\.exe).*empty.go'
go clean -fuzzcache
! exists $GOCACHE/fuzz
go build -x ./empty
! stderr '(compile|gccgo)( |\.exe).*empty.go'

# Fuzzing indicates that one new interesting value was found with an empty
# corpus, and the total size of the cache is now 1.

// 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 (386 || amd64 || amd64p32) && gccgo

package cpu

//extern gccgoGetCpuidCount
func gccgoGetCpuidCount(eaxArg, ecxArg uint32, eax, ebx, ecx, edx *uint32)

func cpuid(eaxArg, ecxArg uint32) (eax, ebx, ecx, edx uint32) {
	var a, b, c, d uint32

	switch compiler {
	case "gc":
		return &gcimports{
			fset:     fset,
			packages: make(map[string]*types.Package),
			lookup:   lookup,
		}

	case "gccgo":
		var inst gccgoimporter.GccgoInstallation
		if err := inst.InitFromDriver("gccgo"); err != nil {
			return nil
		}
		return &gccgoimports{
			packages: make(map[string]*types.Package),
			importer: inst.GetImporter(nil, nil),
			lookup:   lookup,
		}

	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()

// compile

// 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.

// https://gcc.gnu.org/PR101994
// gccgo compiler crash with zero-sized result.

package p

type Empty struct{}

func F() (int, Empty) {
	return 0, Empty{}

// Copyright 2019 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 cpu

func getisar0() uint64 { return 0 }
func getisar1() uint64 { return 0 }