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Copy pathhtml.go
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1124 lines (990 loc) · 27.6 KB
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// Copyright 2015 The Go Authors. All rights reserved.
// Copyright 2019 Dominik Honnef. All rights reserved.
package ir
import (
"bytes"
"fmt"
"go/types"
"html"
"io"
"log"
"os"
"os/exec"
"path/filepath"
"reflect"
"sort"
"strings"
)
func live(f *Function) []bool {
max := 0
var ops []*Value
for _, b := range f.Blocks {
for _, instr := range b.Instrs {
if int(instr.ID()) > max {
max = int(instr.ID())
}
}
}
out := make([]bool, max+1)
var q []Node
for _, b := range f.Blocks {
for _, instr := range b.Instrs {
switch instr.(type) {
case *BlankStore, *Call, *ConstantSwitch, *Defer, *Go, *If, *Jump, *MapUpdate, *Next, *Panic, *Recv, *Return, *RunDefers, *Send, *Store, *Unreachable:
out[instr.ID()] = true
q = append(q, instr)
}
}
}
for len(q) > 0 {
v := q[len(q)-1]
q = q[:len(q)-1]
for _, op := range v.Operands(ops) {
if *op == nil {
continue
}
if !out[(*op).ID()] {
out[(*op).ID()] = true
q = append(q, *op)
}
}
}
return out
}
type funcPrinter interface {
startBlock(b *BasicBlock, reachable bool)
endBlock(b *BasicBlock)
value(v Node, live bool)
startDepCycle()
endDepCycle()
named(n string, vals []Value)
}
func namedValues(f *Function) map[types.Object][]Value {
names := map[types.Object][]Value{}
for _, b := range f.Blocks {
for _, instr := range b.Instrs {
if instr, ok := instr.(*DebugRef); ok {
if obj := instr.object; obj != nil {
names[obj] = append(names[obj], instr.X)
}
}
}
}
// XXX deduplicate values
return names
}
func fprintFunc(p funcPrinter, f *Function) {
// XXX does our IR form preserve unreachable blocks?
// reachable, live := findlive(f)
l := live(f)
for _, b := range f.Blocks {
// XXX
// p.startBlock(b, reachable[b.Index])
p.startBlock(b, true)
end := len(b.Instrs) - 1
if end < 0 {
end = 0
}
for _, v := range b.Instrs[:end] {
if _, ok := v.(*DebugRef); !ok {
p.value(v, l[v.ID()])
}
}
p.endBlock(b)
}
names := namedValues(f)
keys := make([]types.Object, 0, len(names))
for key := range names {
keys = append(keys, key)
}
sort.Slice(keys, func(i, j int) bool {
return keys[i].Pos() < keys[j].Pos()
})
for _, key := range keys {
p.named(key.Name(), names[key])
}
}
func opName(v Node) string {
switch v := v.(type) {
case *Call:
if v.Common().IsInvoke() {
return "Invoke"
}
return "Call"
case *Alloc:
if v.Heap {
return "HeapAlloc"
}
return "StackAlloc"
case *Select:
if v.Blocking {
return "SelectBlocking"
}
return "SelectNonBlocking"
default:
return reflect.ValueOf(v).Type().Elem().Name()
}
}
type HTMLWriter struct {
w io.WriteCloser
path string
dot *dotWriter
}
func NewHTMLWriter(path string, funcname, cfgMask string) *HTMLWriter {
out, err := os.OpenFile(path, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0644)
if err != nil {
log.Fatalf("%v", err)
}
pwd, err := os.Getwd()
if err != nil {
log.Fatalf("%v", err)
}
html := HTMLWriter{w: out, path: filepath.Join(pwd, path)}
html.dot = newDotWriter()
html.start(funcname)
return &html
}
func (w *HTMLWriter) start(name string) {
if w == nil {
return
}
w.WriteString("<html>")
w.WriteString(`<head>
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
<style>
body {
font-size: 14px;
font-family: Arial, sans-serif;
}
h1 {
font-size: 18px;
display: inline-block;
margin: 0 1em .5em 0;
}
#helplink {
display: inline-block;
}
#help {
display: none;
}
.stats {
font-size: 60%;
}
table {
border: 1px solid black;
table-layout: fixed;
width: 300px;
}
th, td {
border: 1px solid black;
overflow: hidden;
width: 400px;
vertical-align: top;
padding: 5px;
}
td > h2 {
cursor: pointer;
font-size: 120%;
}
td.collapsed {
font-size: 12px;
width: 12px;
border: 0px;
padding: 0;
cursor: pointer;
background: #fafafa;
}
td.collapsed div {
-moz-transform: rotate(-90.0deg); /* FF3.5+ */
-o-transform: rotate(-90.0deg); /* Opera 10.5 */
-webkit-transform: rotate(-90.0deg); /* Saf3.1+, Chrome */
filter: progid:DXImageTransform.Microsoft.BasicImage(rotation=0.083); /* IE6,IE7 */
-ms-filter: "progid:DXImageTransform.Microsoft.BasicImage(rotation=0.083)"; /* IE8 */
margin-top: 10.3em;
margin-left: -10em;
margin-right: -10em;
text-align: right;
}
code, pre, .lines, .ast {
font-family: Menlo, monospace;
font-size: 12px;
}
pre {
-moz-tab-size: 4;
-o-tab-size: 4;
tab-size: 4;
}
.allow-x-scroll {
overflow-x: scroll;
}
.lines {
float: left;
overflow: hidden;
text-align: right;
}
.lines div {
padding-right: 10px;
color: gray;
}
div.line-number {
font-size: 12px;
}
.ast {
white-space: nowrap;
}
td.ssa-prog {
width: 600px;
word-wrap: break-word;
}
li {
list-style-type: none;
}
li.ssa-long-value {
text-indent: -2em; /* indent wrapped lines */
}
li.ssa-value-list {
display: inline;
}
li.ssa-start-block {
padding: 0;
margin: 0;
}
li.ssa-end-block {
padding: 0;
margin: 0;
}
ul.ssa-print-func {
padding-left: 0;
}
li.ssa-start-block button {
padding: 0 1em;
margin: 0;
border: none;
display: inline;
font-size: 14px;
float: right;
}
button:hover {
background-color: #eee;
cursor: pointer;
}
dl.ssa-gen {
padding-left: 0;
}
dt.ssa-prog-src {
padding: 0;
margin: 0;
float: left;
width: 4em;
}
dd.ssa-prog {
padding: 0;
margin-right: 0;
margin-left: 4em;
}
.dead-value {
color: gray;
}
.dead-block {
opacity: 0.5;
}
.depcycle {
font-style: italic;
}
.line-number {
font-size: 11px;
}
.no-line-number {
font-size: 11px;
color: gray;
}
.zoom {
position: absolute;
float: left;
white-space: nowrap;
background-color: #eee;
}
.zoom a:link, .zoom a:visited {
text-decoration: none;
color: blue;
font-size: 16px;
padding: 4px 2px;
}
svg {
cursor: default;
outline: 1px solid #eee;
}
.highlight-aquamarine { background-color: aquamarine; }
.highlight-coral { background-color: coral; }
.highlight-lightpink { background-color: lightpink; }
.highlight-lightsteelblue { background-color: lightsteelblue; }
.highlight-palegreen { background-color: palegreen; }
.highlight-skyblue { background-color: skyblue; }
.highlight-lightgray { background-color: lightgray; }
.highlight-yellow { background-color: yellow; }
.highlight-lime { background-color: lime; }
.highlight-khaki { background-color: khaki; }
.highlight-aqua { background-color: aqua; }
.highlight-salmon { background-color: salmon; }
.outline-blue { outline: blue solid 2px; }
.outline-red { outline: red solid 2px; }
.outline-blueviolet { outline: blueviolet solid 2px; }
.outline-darkolivegreen { outline: darkolivegreen solid 2px; }
.outline-fuchsia { outline: fuchsia solid 2px; }
.outline-sienna { outline: sienna solid 2px; }
.outline-gold { outline: gold solid 2px; }
.outline-orangered { outline: orangered solid 2px; }
.outline-teal { outline: teal solid 2px; }
.outline-maroon { outline: maroon solid 2px; }
.outline-black { outline: black solid 2px; }
ellipse.outline-blue { stroke-width: 2px; stroke: blue; }
ellipse.outline-red { stroke-width: 2px; stroke: red; }
ellipse.outline-blueviolet { stroke-width: 2px; stroke: blueviolet; }
ellipse.outline-darkolivegreen { stroke-width: 2px; stroke: darkolivegreen; }
ellipse.outline-fuchsia { stroke-width: 2px; stroke: fuchsia; }
ellipse.outline-sienna { stroke-width: 2px; stroke: sienna; }
ellipse.outline-gold { stroke-width: 2px; stroke: gold; }
ellipse.outline-orangered { stroke-width: 2px; stroke: orangered; }
ellipse.outline-teal { stroke-width: 2px; stroke: teal; }
ellipse.outline-maroon { stroke-width: 2px; stroke: maroon; }
ellipse.outline-black { stroke-width: 2px; stroke: black; }
</style>
<script type="text/javascript">
// ordered list of all available highlight colors
var highlights = [
"highlight-aquamarine",
"highlight-coral",
"highlight-lightpink",
"highlight-lightsteelblue",
"highlight-palegreen",
"highlight-skyblue",
"highlight-lightgray",
"highlight-yellow",
"highlight-lime",
"highlight-khaki",
"highlight-aqua",
"highlight-salmon"
];
// state: which value is highlighted this color?
var highlighted = {};
for (var i = 0; i < highlights.length; i++) {
highlighted[highlights[i]] = "";
}
// ordered list of all available outline colors
var outlines = [
"outline-blue",
"outline-red",
"outline-blueviolet",
"outline-darkolivegreen",
"outline-fuchsia",
"outline-sienna",
"outline-gold",
"outline-orangered",
"outline-teal",
"outline-maroon",
"outline-black"
];
// state: which value is outlined this color?
var outlined = {};
for (var i = 0; i < outlines.length; i++) {
outlined[outlines[i]] = "";
}
window. {
var ssaElemClicked = function(elem, event, selections, selected) {
event.stopPropagation();
// TODO: pushState with updated state and read it on page load,
// so that state can survive across reloads
// find all values with the same name
var c = elem.classList.item(0);
var x = document.getElementsByClassName(c);
// if selected, remove selections from all of them
// otherwise, attempt to add
var remove = "";
for (var i = 0; i < selections.length; i++) {
var color = selections[i];
if (selected[color] == c) {
remove = color;
break;
}
}
if (remove != "") {
for (var i = 0; i < x.length; i++) {
x[i].classList.remove(remove);
}
selected[remove] = "";
return;
}
// we're adding a selection
// find first available color
var avail = "";
for (var i = 0; i < selections.length; i++) {
var color = selections[i];
if (selected[color] == "") {
avail = color;
break;
}
}
if (avail == "") {
alert("out of selection colors; go add more");
return;
}
// set that as the selection
for (var i = 0; i < x.length; i++) {
x[i].classList.add(avail);
}
selected[avail] = c;
};
var ssaValueClicked = function(event) {
ssaElemClicked(th
1798
is, event, highlights, highlighted);
};
var ssaBlockClicked = function(event) {
ssaElemClicked(this, event, outlines, outlined);
};
var ssavalues = document.getElementsByClassName("ssa-value");
for (var i = 0; i < ssavalues.length; i++) {
ssavalues[i].addEventListener('click', ssaValueClicked);
}
var ssalongvalues = document.getElementsByClassName("ssa-long-value");
for (var i = 0; i < ssalongvalues.length; i++) {
// don't attach listeners to li nodes, just the spans they contain
if (ssalongvalues[i].nodeName == "SPAN") {
ssalongvalues[i].addEventListener('click', ssaValueClicked);
}
}
var ssablocks = document.getElementsByClassName("ssa-block");
for (var i = 0; i < ssablocks.length; i++) {
ssablocks[i].addEventListener('click', ssaBlockClicked);
}
var lines = document.getElementsByClassName("line-number");
for (var i = 0; i < lines.length; i++) {
lines[i].addEventListener('click', ssaValueClicked);
}
// Contains phase names which are expanded by default. Other columns are collapsed.
var expandedDefault = [
"start",
"deadcode",
"opt",
"lower",
"late deadcode",
"regalloc",
"genssa",
];
function toggler(phase) {
return function() {
toggle_cell(phase+'-col');
toggle_cell(phase+'-exp');
};
}
function toggle_cell(id) {
var e = document.getElementById(id);
if (e.style.display == 'table-cell') {
e.style.display = 'none';
} else {
e.style.display = 'table-cell';
}
}
// Go through all columns and collapse needed phases.
var td = document.getElementsByTagName("td");
for (var i = 0; i < td.length; i++) {
var id = td[i].id;
var phase = id.substr(0, id.length-4);
var show = expandedDefault.indexOf(phase) !== -1
if (id.endsWith("-exp")) {
var h2 = td[i].getElementsByTagName("h2");
if (h2 && h2[0]) {
h2[0].addEventListener('click', toggler(phase));
}
} else {
td[i].addEventListener('click', toggler(phase));
}
if (id.endsWith("-col") && show || id.endsWith("-exp") && !show) {
td[i].style.display = 'none';
continue;
}
td[i].style.display = 'table-cell';
}
// find all svg block nodes, add their block classes
var nodes = document.querySelectorAll('*[id^="graph_node_"]');
for (var i = 0; i < nodes.length; i++) {
var node = nodes[i];
var name = node.id.toString();
var block = name.substring(name.lastIndexOf("_")+1);
node.classList.remove("node");
node.classList.add(block);
node.addEventListener('click', ssaBlockClicked);
var ellipse = node.getElementsByTagName('ellipse')[0];
ellipse.classList.add(block);
ellipse.addEventListener('click', ssaBlockClicked);
}
// make big graphs smaller
var targetScale = 0.5;
var nodes = document.querySelectorAll('*[id^="svg_graph_"]');
// TODO: Implement smarter auto-zoom using the viewBox attribute
// and in case of big graphs set the width and height of the svg graph to
// maximum allowed.
for (var i = 0; i < nodes.length; i++) {
var node = nodes[i];
var name = node.id.toString();
var phase = name.substring(name.lastIndexOf("_")+1);
var gNode = document.getElementById("g_graph_"+phase);
var scale = gNode.transform.baseVal.getItem(0).matrix.a;
if (scale > targetScale) {
node.width.baseVal.value *= targetScale / scale;
node.height.baseVal.value *= targetScale / scale;
}
}
};
function toggle_visibility(id) {
var e = document.getElementById(id);
if (e.style.display == 'block') {
e.style.display = 'none';
} else {
e.style.display = 'block';
}
}
function hideBlock(el) {
var es = el.parentNode.parentNode.getElementsByClassName("ssa-value-list");
if (es.length===0)
return;
var e = es[0];
if (e.style.display === 'block' || e.style.display === '') {
e.style.display = 'none';
el.innerHTML = '+';
} else {
e.style.display = 'block';
el.innerHTML = '-';
}
}
// TODO: scale the graph with the viewBox attribute.
function graphReduce(id) {
var node = document.getElementById(id);
if (node) {
node.width.baseVal.value *= 0.9;
node.height.baseVal.value *= 0.9;
}
return false;
}
function graphEnlarge(id) {
var node = document.getElementById(id);
if (node) {
node.width.baseVal.value *= 1.1;
node.height.baseVal.value *= 1.1;
}
return false;
}
function makeDraggable(event) {
var svg = event.target;
if (window.PointerEvent) {
svg.addEventListener('pointerdown', startDrag);
svg.addEventListener('pointermove', drag);
svg.addEventListener('pointerup', endDrag);
svg.addEventListener('pointerleave', endDrag);
} else {
svg.addEventListener('mousedown', startDrag);
svg.addEventListener('mousemove', drag);
svg.addEventListener('mouseup', endDrag);
svg.addEventListener('mouseleave', endDrag);
}
var point = svg.createSVGPoint();
var isPointerDown = false;
var pointerOrigin;
var viewBox = svg.viewBox.baseVal;
function getPointFromEvent (event) {
point.x = event.clientX;
point.y = event.clientY;
// We get the current transformation matrix of the SVG and we inverse it
var invertedSVGMatrix = svg.getScreenCTM().inverse();
return point.matrixTransform(invertedSVGMatrix);
}
function startDrag(event) {
isPointerDown = true;
pointerOrigin = getPointFromEvent(event);
}
function drag(event) {
if (!isPointerDown) {
return;
}
event.preventDefault();
var pointerPosition = getPointFromEvent(event);
viewBox.x -= (pointerPosition.x - pointerOrigin.x);
viewBox.y -= (pointerPosition.y - pointerOrigin.y);
}
function endDrag(event) {
isPointerDown = false;
}
}</script>
</head>`)
w.WriteString("<body>")
w.WriteString("<h1>")
w.WriteString(html.EscapeString(name))
w.WriteString("</h1>")
w.WriteString(`
<a href="#" false;" id="helplink">help</a>
<div id="help">
<p>
Click on a value or block to toggle highlighting of that value/block
and its uses. (Values and blocks are highlighted by ID, and IDs of
dead items may be reused, so not all highlights necessarily correspond
to the clicked item.)
</p>
<p>
Faded out values and blocks are dead code that has not been eliminated.
</p>
<p>
Values printed in italics have a dependency cycle.
</p>
<p>
<b>CFG</b>: Dashed edge is for unlikely branches. Blue color is for backward edges.
Edge with a dot means that this edge follows the order in which blocks were laidout.
</p>
</div>
`)
w.WriteString("<table>")
w.WriteString("<tr>")
}
func (w *HTMLWriter) Close() {
if w == nil {
return
}
io.WriteString(w.w, "</tr>")
io.WriteString(w.w, "</table>")
io.WriteString(w.w, "</body>")
io.WriteString(w.w, "</html>")
w.w.Close()
fmt.Printf("dumped IR to %v\n", w.path)
}
// WriteFunc writes f in a column headed by title.
// phase is used for collapsing columns and should be unique across the table.
func (w *HTMLWriter) WriteFunc(phase, title string, f *Function) {
if w == nil {
return
}
w.WriteColumn(phase, title, "", funcHTML(f, phase, w.dot))
}
// WriteColumn writes raw HTML in a column headed by title.
// It is intended for pre- and post-compilation log output.
func (w *HTMLWriter) WriteColumn(phase, title, class, html string) {
if w == nil {
return
}
id := strings.Replace(phase, " ", "-", -1)
// collapsed column
w.Printf("<td id=\"%v-col\" class=\"collapsed\"><div>%v</div></td>", id, phase)
if class == "" {
w.Printf("<td id=\"%v-exp\">", id)
} else {
w.Printf("<td id=\"%v-exp\" class=\"%v\">", id, class)
}
w.WriteString("<h2>" + title + "</h2>")
w.WriteString(html)
w.WriteString("</td>")
}
func (w *HTMLWriter) Printf(msg string, v ...interface{}) {
if _, err := fmt.Fprintf(w.w, msg, v...); err != nil {
log.Fatalf("%v", err)
}
}
func (w *HTMLWriter) WriteString(s string) {
if _, err := io.WriteString(w.w, s); err != nil {
log.Fatalf("%v", err)
}
}
func valueHTML(v Node) string {
if v == nil {
return "<nil>"
}
// TODO: Using the value ID as the class ignores the fact
// that value IDs get recycled and that some values
// are transmuted into other values.
class := fmt.Sprintf("t%d", v.ID())
var label string
switch v := v.(type) {
case *Function:
label = v.RelString(nil)
case *Builtin:
label = v.Name()
default:
label = class
}
return fmt.Sprintf("<span class=\"%s ssa-value\">%s</span>", class, label)
}
func valueLongHTML(v Node) string {
// TODO: Any intra-value formatting?
// I'm wary of adding too much visual noise,
// but a little bit might be valuable.
// We already have visual noise in the form of punctuation
// maybe we could replace some of that with formatting.
s := fmt.Sprintf("<span class=\"t%d ssa-long-value\">", v.ID())
linenumber := "<span class=\"no-line-number\">(?)</span>"
if v.Pos().IsValid() {
line := v.Parent().Prog.Fset.Position(v.Pos()).Line
linenumber = fmt.Sprintf("<span class=\"l%v line-number\">(%d)</span>", line, line)
}
s += fmt.Sprintf("%s %s = %s", valueHTML(v), linenumber, opName(v))
if v, ok := v.(Value); ok {
s += " <" + html.EscapeString(v.Type().String()) + ">"
}
switch v := v.(type) {
case *Parameter:
s += fmt.Sprintf(" {%s}", html.EscapeString(v.name))
case *BinOp:
s += fmt.Sprintf(" {%s}", html.EscapeString(v.Op.String()))
case *UnOp:
s += fmt.Sprintf(" {%s}", html.EscapeString(v.Op.String()))
case *Extract:
name := v.Tuple.Type().(*types.Tuple).At(v.Index).Name()
s += fmt.Sprintf(" [%d] (%s)", v.Index, name)
case *Field:
st := v.X.Type().Underlying().(*types.Struct)
// Be robust against a bad index.
name := "?"
if 0 <= v.Field && v.Field < st.NumFields() {
name = st.Field(v.Field).Name()
}
s += fmt.Sprintf(" [%d] (%s)", v.Field, name)
case *FieldAddr:
st := deref(v.X.Type()).Underlying().(*types.Struct)
// Be robust against a bad index.
name := "?"
if 0 <= v.Field && v.Field < st.NumFields() {
name = st.Field(v.Field).Name()
}
s += fmt.Sprintf(" [%d] (%s)", v.Field, name)
case *Recv:
s += fmt.Sprintf(" {%t}", v.CommaOk)
case *Call:
if v.Common().IsInvoke() {
s += fmt.Sprintf(" {%s}", html.EscapeString(v.Common().Method.FullName()))
}
case *Const:
if v.Value == nil {
s += " {<nil>}"
} else {
s += fmt.Sprintf(" {%s}", html.EscapeString(v.Value.String()))
}
case *Sigma:
s += fmt.Sprintf(" [#%s]", v.From)
}
for _, a := range v.Operands(nil) {
s += fmt.Sprintf(" %s", valueHTML(*a))
}
// OPT(dh): we're calling namedValues many times on the same function.
allNames := namedValues(v.Parent())
var names []string
for name, values := range allNames {
for _, value := range values {
if v == value {
names = append(names, name.Name())
break
}
}
}
if len(names) != 0 {
s += " (" + strings.Join(names, ", ") + ")"
}
s += "</span>"
return s
}
func blockHTML(b *BasicBlock) string {
// TODO: Using the value ID as the class ignores the fact
// that value IDs get recycled and that some values
// are transmuted into other values.
s := html.EscapeString(b.String())
return fmt.Sprintf("<span class=\"%s ssa-block\">%s</span>", s, s)
}
func blockLongHTML(b *BasicBlock) string {
var kind string
var term Instruction
if len(b.Instrs) > 0 {
term = b.Control()
kind = opName(term)
}
// TODO: improve this for HTML?
s := fmt.Sprintf("<span class=\"b%d ssa-block\">%s</span>", b.Index, kind)
if term != nil {
ops := term.Operands(nil)
if len(ops) > 0 {
var ss []string
for _, op := range ops {
ss = append(ss, valueHTML(*op))
}
s += " " + strings.Join(ss, ", ")
}
}
if len(b.Succs) > 0 {
s += " →" // right arrow
for _, c := range b.Succs {
s += " " + blockHTML(c)
}
}
return s
}
func funcHTML(f *Function, phase string, dot *dotWriter) string {
buf := new(bytes.Buffer)
if dot != nil {
dot.writeFuncSVG(buf, phase, f)
}
fmt.Fprint(buf, "<code>")
p := htmlFuncPrinter{w: buf}
fprintFunc(p, f)
// fprintFunc(&buf, f) // TODO: HTML, not text, <br /> for line breaks, etc.
fmt.Fprint(buf, "</code>")
return buf.String()
}
type htmlFuncPrinter struct {
w io.Writer
}
func (p htmlFuncPrinter) startBlock(b *BasicBlock, reachable bool) {
var dead string
if !reachable {
dead = "dead-block"
}
fmt.Fprintf(p.w, "<ul class=\"%s ssa-print-func %s\">", b, dead)
fmt.Fprintf(p.w, "<li class=\"ssa-start-block\">%s:", blockHTML(b))
if len(b.Preds) > 0 {
io.WriteString(p.w, " ←") // left arrow
for _, pred := range b.Preds {
fmt.Fprintf(p.w, " %s", blockHTML(pred))
}
}
if len(b.Instrs) > 0 {
io.WriteString(p.w, `<button >
}
io.WriteString(p.w, "</li>")
if len(b.Instrs) > 0 { // start list of values
io.WriteString(p.w, "<li class=\"ssa-value-list\">")
io.WriteString(p.w, "<ul>")
}
}
func (p htmlFuncPrinter) endBlock(b *BasicBlock) {
if len(b.Instrs) > 0 { // end list of values
io.WriteString(p.w, "</ul>")
io.WriteString(p.w, "</li>")
}
io.WriteString(p.w, "<li class=\"ssa-end-block\">")
fmt.Fprint(p.w, blockLongHTML(b))
io.WriteString(p.w, "</li>")
io.WriteString(p.w, "</ul>")
}
func (p htmlFuncPrinter) value(v Node, live bool) {
var dead string
if !live {
dead = "dead-value"
}
fmt.Fprintf(p.w, "<li class=\"ssa-long-value %s\">", dead)
fmt.Fprint(p.w, valueLongHTML(v))
io.WriteString(p.w, "</li>")