// (for example AMD64.rules) contain rules specific to the architecture in the
// filename. The rules here apply to every architecture.
//
// The code for parsing this file lives in rulegen.go; this file generates
// ssa/rewritegeneric.go.

// values are specified using the following format:
// (op <type> [auxint] {aux} arg0 arg1 ...)
// the type, aux, and auxint fields are optional

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// Stress test setgid and thread creation. A thread
// can get a SIGSETXID signal early on at thread
// initialization, causing crash. See issue 53374.

package cgotest

/*
#include <sys/types.h>
#include <unistd.h>
*/
import "C"

import (
	"runtime"
	"testing"
)

func testSetgidStress(t *testing.T) {

	if *verbflag >= vlevel {
		fmt.Printf(s, a...)
		fmt.Printf("\n")
	}
}

func warn(s string, a ...interface{}) {
	fmt.Fprintf(os.Stderr, "warning: ")
	fmt.Fprintf(os.Stderr, s, a...)
	fmt.Fprintf(os.Stderr, "\n")
	if *hwflag {
		panic("unexpected warning")
	}
}

func fatal(s string, a ...interface{}) {
	fmt.Fprintf(os.Stderr, "error: ")
	fmt.Fprintf(os.Stderr, s, a...)
	fmt.Fprintf(os.Stderr, "\n")

	Pkg  *Pkg
	Name string // object name

	// The unique ONAME, OTYPE, OPACK, or OLITERAL node that this symbol is
	// bound to within the current scope. (Most parts of the compiler should
	// prefer passing the Node directly, rather than relying on this field.)
	//
	// Deprecated: New code should avoid depending on Sym.Def. Add
	// mdempsky@ as a reviewer for any CLs involving Sym.Def.
	Def Object

	flags bitset8
}

			ind, limit = limit, ind
			less = false
		}

		if ind.Block != b {
			// TODO: Could be extended to include disjointed loop headers.
			// I don't think this is causing missed optimizations in real world code often.
			// See https://go.dev/issue/63955
			continue
		}

		// Expect the increment to be a nonzero constant.
		if !inc.isGenericIntConst() {
			continue
		}

	flag.BoolVar(&noBanner, "no-banner", noBanner, "do not print banner")
	flag.BoolVar(&noClean, "no-clean", noClean, "print deprecation warning")

	xflagparse(0)

	if noClean {
		xprintf("warning: --no-clean is deprecated and has no effect; use 'go install std cmd' instead\n")
	}

	// Don't build broken ports by default.
	if broken[goos+"/"+goarch] && !force {

//
// We implement this by performing the max shift (-1) if y > the maximum value.
//
// We OR (uint64(y < 64) - 1) into y before passing it to SRA. This leaves
// us with -1 (0xffff...) if y >= 64.  Similarly, we OR (uint64(y < 32) - 1) into y
// before passing it to SRAW.
//
// We don't need to sign-extend the OR result, as it will be at minimum 8 bits,
// more than the 5 or 6 bits SRAW and SRA care about.

			// register is free, allocate that one. Otherwise when processing
			// another input we may kick a value into the free register, which
			// then will be kicked out again.
			// This is a common case for passing-in-register arguments for
			// function calls.
			for {
				freed := false
				for _, i := range regspec.inputs {
					if args[i.idx] != nil {
						continue // already allocated
					}

(CIJ  {c} (MOV(W|WZ)reg x) [y] yes no) => (CIJ  {c} x [y] yes no)
(CLIJ {c} (MOV(W|WZ)reg x) [y] yes no) => (CLIJ {c} x [y] yes no)

// Bring out-of-range signed immediates into range by varying branch condition.
(BRC {s390x.Less}           (CMPconst  x [ 128]) yes no) => (CGIJ {s390x.LessOrEqual}    x [ 127] yes no)
(BRC {s390x.Less}           (CMPWconst x [ 128]) yes no) => (CIJ  {s390x.LessOrEqual}    x [ 127] yes no)

			[]testInst{{`g`, []string{`int`, `string`}, `func(int, string)`}},
		},
		// reverse3a not possible (cannot assign to generic function outside of argument passing)
		{`package reverse3b; func f[R any](func(int) R) {}; func g[P any](P) string { return "" }; func _() { f(g) }`,
			[]testInst{
				{`f`, []string{`string`}, `func(func(int) string)`},