http.Error(w, err.Error(), http.StatusBadRequest)
			return
		}
		type event struct {
			WhenString string
			Elapsed    time.Duration
			Goroutine  trace.GoID
			What       string
			// TODO: include stack trace of creation time
		}
		type task struct {
			WhenString string
			ID         trace.TaskID
			Duration   time.Duration
			Complete   bool
			Events     []event

func (out *OutBuf) Mmap(filesize uint64) error {
	// We need space to put all the symbols before we apply relocations.
	oldheap := out.heap
	if filesize < uint64(len(oldheap)) {
		panic("mmap size too small")
	}
	out.heap = make([]byte, filesize)
	copy(out.heap, oldheap)
	return nil
}

// 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.

// TODO: live at start of block instead?

package ssa

import (
	"cmd/compile/internal/ir"
	"cmd/compile/internal/types"
	"cmd/internal/src"
	"fmt"
)

type stackAllocState struct {
	f *Func

	// live is the output of stackalloc.

	case scanner.Int, '(':
		p.back()
		x := int64(p.expr())
		if p.arch.Family == sys.ARM64 {
			if x >= 64 {
				p.errorf("register shift count too large: %s", str)
			}
			count = int16((x & 63) << 10)
		} else {
			if x >= 32 {
				p.errorf("register shift count too large: %s", str)
			}
			count = int16((x & 31) << 7)
		}
	default:
		p.errorf("unexpected %s in register shift", tok.String())
	}

func hasDots(call *syntax.CallExpr) bool { return call.HasDots }

// dddErrPos returns the node (poser) for reporting an invalid ... use in a call.
func dddErrPos(call *syntax.CallExpr) *syntax.CallExpr {
	// TODO(gri) should use "..." instead of call position
	return call
}

// argErrPos returns the node (poser) for reporting an invalid argument count.
func argErrPos(call *syntax.CallExpr) *syntax.CallExpr { return call }

package ssa

import (
	"cmd/compile/internal/base"
	"cmd/compile/internal/types"
	"container/heap"
	"sort"
)

const (
	ScorePhi       = iota // towards top of block
	ScoreArg              // must occur at the top of the entry block
	ScoreInitMem          // after the args - used as mark by debug info generation
	ScoreReadTuple        // must occur immediately after tuple-generating insn (or call)
	ScoreNilCheck

// because the internal package can't be used here.
func libFuzzerSupported(goos, goarch string) bool {
	switch goarch {
	case "amd64", "arm64":
		// TODO(#14565): support more architectures.
		switch goos {
		case "darwin", "freebsd", "linux", "windows":
			return true
		default:
			return false
		}
	default:
		return false
	}

			// TODO(matloob): This shouldn't be necessary, but the cmd/cgo/internal/testshared
			// test fails without Target set for this condition. Figure out why and
			// fix it.
			p.Target = filepath.Join(p.Internal.Build.PkgTargetRoot, p.ImportPath+".a")
		}
		if cfg.BuildLinkshared && p.Internal.Build.PkgTargetRoot != "" {

		p2.To.Reg = REGTMP
		p2.To.Name = obj.NAME_NONE
		p2.To.Sym = nil
	} else {
		return
	}
	obj.Nopout(p)
}

func preprocess(ctxt *obj.Link, cursym *obj.LSym, newprog obj.ProgAlloc) {
	// TODO(minux): add morestack short-cuts with small fixed frame-size.
	if cursym.Func().Text == nil || cursym.Func().Text.Link == nil {
		return
	}

	c := ctxt9{ctxt: ctxt, cursym: cursym, newprog: newprog}

		viewerEv.Ts = ctx.elapsed(start)
		// TODO(mknyszek): We don't have a state machine for threads, so approximate
		// running threads with running Ps.
		ctx.IncThreadStateCount(ctx.elapsed(start), traceviewer.ThreadStateRunning, 1)
	}
	if from.Executing() {
		start := ev.Time()
		viewerEv.Name = "proc stop"
		viewerEv.Ts = ctx.elapsed(start)
		// TODO(mknyszek): We don't have a state machine for threads, so approximate