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e80abebead
Spill intervals can be hidden using the "-rmf-intervals=virt-nospills*" option. llvm-svn: 112811
1015 lines
34 KiB
C++
1015 lines
34 KiB
C++
//===-- llvm/CodeGen/RenderMachineFunction.cpp - MF->HTML -----s-----------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#define DEBUG_TYPE "rendermf"
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#include "RenderMachineFunction.h"
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#include "VirtRegMap.h"
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#include "llvm/Function.h"
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#include "llvm/Module.h"
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/CodeGen/LiveIntervalAnalysis.h"
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#include "llvm/CodeGen/MachineFunction.h"
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#include "llvm/CodeGen/MachineInstr.h"
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#include "llvm/CodeGen/MachineRegisterInfo.h"
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Support/Debug.h"
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#include "llvm/Support/raw_ostream.h"
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#include "llvm/Target/TargetMachine.h"
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#include <sstream>
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using namespace llvm;
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char RenderMachineFunction::ID = 0;
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INITIALIZE_PASS(RenderMachineFunction, "rendermf",
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"Render machine functions (and related info) to HTML pages",
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false, false);
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static cl::opt<std::string>
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outputFileSuffix("rmf-file-suffix",
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cl::desc("Appended to function name to get output file name "
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"(default: \".html\")"),
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cl::init(".html"), cl::Hidden);
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static cl::opt<std::string>
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machineFuncsToRender("rmf-funcs",
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cl::desc("Coma seperated list of functions to render"
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", or \"*\"."),
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cl::init(""), cl::Hidden);
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static cl::opt<std::string>
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pressureClasses("rmf-classes",
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cl::desc("Register classes to render pressure for."),
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cl::init(""), cl::Hidden);
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static cl::opt<std::string>
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showIntervals("rmf-intervals",
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cl::desc("Live intervals to show alongside code."),
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cl::init(""), cl::Hidden);
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static cl::opt<bool>
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filterEmpty("rmf-filter-empty-intervals",
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cl::desc("Don't display empty intervals."),
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cl::init(true), cl::Hidden);
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static cl::opt<bool>
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showEmptyIndexes("rmf-empty-indexes",
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cl::desc("Render indexes not associated with instructions or "
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"MBB starts."),
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cl::init(false), cl::Hidden);
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static cl::opt<bool>
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useFancyVerticals("rmf-fancy-verts",
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cl::desc("Use SVG for vertical text."),
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cl::init(true), cl::Hidden);
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static cl::opt<bool>
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prettyHTML("rmf-pretty-html",
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cl::desc("Pretty print HTML. For debugging the renderer only.."),
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cl::init(false), cl::Hidden);
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namespace llvm {
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bool MFRenderingOptions::renderingOptionsProcessed;
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std::set<std::string> MFRenderingOptions::mfNamesToRender;
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bool MFRenderingOptions::renderAllMFs = false;
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std::set<std::string> MFRenderingOptions::classNamesToRender;
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bool MFRenderingOptions::renderAllClasses = false;
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std::set<std::pair<unsigned, unsigned> >
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MFRenderingOptions::intervalNumsToRender;
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unsigned MFRenderingOptions::intervalTypesToRender = ExplicitOnly;
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template <typename OutputItr>
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void MFRenderingOptions::splitComaSeperatedList(const std::string &s,
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OutputItr outItr) {
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std::string::const_iterator curPos = s.begin();
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std::string::const_iterator nextComa = std::find(curPos, s.end(), ',');
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while (nextComa != s.end()) {
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std::string elem;
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std::copy(curPos, nextComa, std::back_inserter(elem));
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*outItr = elem;
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++outItr;
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curPos = llvm::next(nextComa);
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nextComa = std::find(curPos, s.end(), ',');
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}
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if (curPos != s.end()) {
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std::string elem;
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std::copy(curPos, s.end(), std::back_inserter(elem));
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*outItr = elem;
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++outItr;
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}
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}
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void MFRenderingOptions::processOptions() {
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if (!renderingOptionsProcessed) {
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processFuncNames();
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processRegClassNames();
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processIntervalNumbers();
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renderingOptionsProcessed = true;
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}
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}
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void MFRenderingOptions::processFuncNames() {
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if (machineFuncsToRender == "*") {
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renderAllMFs = true;
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} else {
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splitComaSeperatedList(machineFuncsToRender,
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std::inserter(mfNamesToRender,
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mfNamesToRender.begin()));
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}
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}
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void MFRenderingOptions::processRegClassNames() {
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if (pressureClasses == "*") {
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renderAllClasses = true;
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} else {
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splitComaSeperatedList(pressureClasses,
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std::inserter(classNamesToRender,
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classNamesToRender.begin()));
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}
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}
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void MFRenderingOptions::processIntervalNumbers() {
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std::set<std::string> intervalRanges;
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splitComaSeperatedList(showIntervals,
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std::inserter(intervalRanges,
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intervalRanges.begin()));
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std::for_each(intervalRanges.begin(), intervalRanges.end(),
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processIntervalRange);
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}
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void MFRenderingOptions::processIntervalRange(
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const std::string &intervalRangeStr) {
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if (intervalRangeStr == "*") {
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intervalTypesToRender |= All;
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} else if (intervalRangeStr == "virt-nospills*") {
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intervalTypesToRender |= VirtNoSpills;
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} else if (intervalRangeStr == "spills*") {
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intervalTypesToRender |= VirtSpills;
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} else if (intervalRangeStr == "virt*") {
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intervalTypesToRender |= AllVirt;
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} else if (intervalRangeStr == "phys*") {
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intervalTypesToRender |= AllPhys;
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} else {
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std::istringstream iss(intervalRangeStr);
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unsigned reg1, reg2;
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if ((iss >> reg1 >> std::ws)) {
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if (iss.eof()) {
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intervalNumsToRender.insert(std::make_pair(reg1, reg1 + 1));
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} else {
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char c;
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iss >> c;
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if (c == '-' && (iss >> reg2)) {
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intervalNumsToRender.insert(std::make_pair(reg1, reg2 + 1));
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} else {
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dbgs() << "Warning: Invalid interval range \""
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<< intervalRangeStr << "\" in -rmf-intervals. Skipping.\n";
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}
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}
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} else {
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dbgs() << "Warning: Invalid interval number \""
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<< intervalRangeStr << "\" in -rmf-intervals. Skipping.\n";
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}
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}
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}
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void MFRenderingOptions::setup(MachineFunction *mf,
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const TargetRegisterInfo *tri,
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LiveIntervals *lis,
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const RenderMachineFunction *rmf) {
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this->mf = mf;
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this->tri = tri;
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this->lis = lis;
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this->rmf = rmf;
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clear();
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}
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void MFRenderingOptions::clear() {
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regClassesTranslatedToCurrentFunction = false;
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regClassSet.clear();
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intervalsTranslatedToCurrentFunction = false;
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intervalSet.clear();
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}
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void MFRenderingOptions::resetRenderSpecificOptions() {
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intervalSet.clear();
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intervalsTranslatedToCurrentFunction = false;
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}
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bool MFRenderingOptions::shouldRenderCurrentMachineFunction() const {
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processOptions();
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return (renderAllMFs ||
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mfNamesToRender.find(mf->getFunction()->getName()) !=
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mfNamesToRender.end());
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}
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const MFRenderingOptions::RegClassSet& MFRenderingOptions::regClasses() const{
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translateRegClassNamesToCurrentFunction();
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return regClassSet;
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}
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const MFRenderingOptions::IntervalSet& MFRenderingOptions::intervals() const {
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translateIntervalNumbersToCurrentFunction();
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return intervalSet;
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}
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bool MFRenderingOptions::renderEmptyIndexes() const {
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return showEmptyIndexes;
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}
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bool MFRenderingOptions::fancyVerticals() const {
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return useFancyVerticals;
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}
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void MFRenderingOptions::translateRegClassNamesToCurrentFunction() const {
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if (!regClassesTranslatedToCurrentFunction) {
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processOptions();
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for (TargetRegisterInfo::regclass_iterator rcItr = tri->regclass_begin(),
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rcEnd = tri->regclass_end();
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rcItr != rcEnd; ++rcItr) {
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const TargetRegisterClass *trc = *rcItr;
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if (renderAllClasses ||
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classNamesToRender.find(trc->getName()) !=
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classNamesToRender.end()) {
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regClassSet.insert(trc);
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}
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}
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regClassesTranslatedToCurrentFunction = true;
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}
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}
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void MFRenderingOptions::translateIntervalNumbersToCurrentFunction() const {
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if (!intervalsTranslatedToCurrentFunction) {
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processOptions();
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// If we're not just doing explicit then do a copy over all matching
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// types.
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if (intervalTypesToRender != ExplicitOnly) {
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for (LiveIntervals::iterator liItr = lis->begin(), liEnd = lis->end();
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liItr != liEnd; ++liItr) {
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LiveInterval *li = liItr->second;
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if (filterEmpty && li->empty())
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continue;
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if ((TargetRegisterInfo::isPhysicalRegister(li->reg) &&
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(intervalTypesToRender & AllPhys))) {
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intervalSet.insert(li);
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} else if (TargetRegisterInfo::isVirtualRegister(li->reg)) {
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if (((intervalTypesToRender & VirtNoSpills) && !rmf->isSpill(li)) ||
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((intervalTypesToRender & VirtSpills) && rmf->isSpill(li))) {
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intervalSet.insert(li);
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}
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}
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}
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}
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// If we need to process the explicit list...
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if (intervalTypesToRender != All) {
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for (std::set<std::pair<unsigned, unsigned> >::const_iterator
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regRangeItr = intervalNumsToRender.begin(),
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regRangeEnd = intervalNumsToRender.end();
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regRangeItr != regRangeEnd; ++regRangeItr) {
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const std::pair<unsigned, unsigned> &range = *regRangeItr;
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for (unsigned reg = range.first; reg != range.second; ++reg) {
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if (lis->hasInterval(reg)) {
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intervalSet.insert(&lis->getInterval(reg));
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}
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}
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}
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}
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intervalsTranslatedToCurrentFunction = true;
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}
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}
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// ---------- TargetRegisterExtraInformation implementation ----------
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TargetRegisterExtraInfo::TargetRegisterExtraInfo()
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: mapsPopulated(false) {
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}
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void TargetRegisterExtraInfo::setup(MachineFunction *mf,
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MachineRegisterInfo *mri,
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const TargetRegisterInfo *tri,
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LiveIntervals *lis) {
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this->mf = mf;
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this->mri = mri;
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this->tri = tri;
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this->lis = lis;
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}
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void TargetRegisterExtraInfo::reset() {
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if (!mapsPopulated) {
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initWorst();
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//initBounds();
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initCapacity();
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mapsPopulated = true;
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}
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resetPressureAndLiveStates();
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}
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void TargetRegisterExtraInfo::clear() {
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prWorst.clear();
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vrWorst.clear();
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capacityMap.clear();
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pressureMap.clear();
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//liveStatesMap.clear();
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mapsPopulated = false;
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}
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void TargetRegisterExtraInfo::initWorst() {
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assert(!mapsPopulated && prWorst.empty() && vrWorst.empty() &&
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"Worst map already initialised?");
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// Start with the physical registers.
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for (unsigned preg = 1; preg < tri->getNumRegs(); ++preg) {
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WorstMapLine &pregLine = prWorst[preg];
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for (TargetRegisterInfo::regclass_iterator rcItr = tri->regclass_begin(),
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rcEnd = tri->regclass_end();
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rcItr != rcEnd; ++rcItr) {
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const TargetRegisterClass *trc = *rcItr;
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unsigned numOverlaps = 0;
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for (TargetRegisterClass::iterator rItr = trc->begin(),
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rEnd = trc->end();
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rItr != rEnd; ++rItr) {
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unsigned trcPReg = *rItr;
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if (tri->regsOverlap(preg, trcPReg))
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++numOverlaps;
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}
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pregLine[trc] = numOverlaps;
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}
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}
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// Now the register classes.
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for (TargetRegisterInfo::regclass_iterator rc1Itr = tri->regclass_begin(),
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rcEnd = tri->regclass_end();
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rc1Itr != rcEnd; ++rc1Itr) {
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const TargetRegisterClass *trc1 = *rc1Itr;
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WorstMapLine &classLine = vrWorst[trc1];
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for (TargetRegisterInfo::regclass_iterator rc2Itr = tri->regclass_begin();
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rc2Itr != rcEnd; ++rc2Itr) {
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const TargetRegisterClass *trc2 = *rc2Itr;
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unsigned worst = 0;
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for (TargetRegisterClass::iterator trc1Itr = trc1->begin(),
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trc1End = trc1->end();
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trc1Itr != trc1End; ++trc1Itr) {
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unsigned trc1Reg = *trc1Itr;
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unsigned trc1RegWorst = 0;
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for (TargetRegisterClass::iterator trc2Itr = trc2->begin(),
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trc2End = trc2->end();
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trc2Itr != trc2End; ++trc2Itr) {
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unsigned trc2Reg = *trc2Itr;
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if (tri->regsOverlap(trc1Reg, trc2Reg))
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++trc1RegWorst;
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}
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if (trc1RegWorst > worst) {
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worst = trc1RegWorst;
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}
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}
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if (worst != 0) {
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classLine[trc2] = worst;
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}
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}
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}
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}
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unsigned TargetRegisterExtraInfo::getWorst(
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unsigned reg,
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const TargetRegisterClass *trc) const {
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const WorstMapLine *wml = 0;
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if (TargetRegisterInfo::isPhysicalRegister(reg)) {
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PRWorstMap::const_iterator prwItr = prWorst.find(reg);
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assert(prwItr != prWorst.end() && "Missing prWorst entry.");
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wml = &prwItr->second;
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} else {
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const TargetRegisterClass *regTRC = mri->getRegClass(reg);
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VRWorstMap::const_iterator vrwItr = vrWorst.find(regTRC);
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assert(vrwItr != vrWorst.end() && "Missing vrWorst entry.");
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wml = &vrwItr->second;
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}
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WorstMapLine::const_iterator wmlItr = wml->find(trc);
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if (wmlItr == wml->end())
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return 0;
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return wmlItr->second;
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}
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void TargetRegisterExtraInfo::initCapacity() {
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assert(!mapsPopulated && capacityMap.empty() &&
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"Capacity map already initialised?");
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for (TargetRegisterInfo::regclass_iterator rcItr = tri->regclass_begin(),
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rcEnd = tri->regclass_end();
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rcItr != rcEnd; ++rcItr) {
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const TargetRegisterClass *trc = *rcItr;
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unsigned capacity = std::distance(trc->allocation_order_begin(*mf),
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trc->allocation_order_end(*mf));
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if (capacity != 0)
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capacityMap[trc] = capacity;
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}
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}
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unsigned TargetRegisterExtraInfo::getCapacity(
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const TargetRegisterClass *trc) const {
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CapacityMap::const_iterator cmItr = capacityMap.find(trc);
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assert(cmItr != capacityMap.end() &&
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"vreg with unallocable register class");
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return cmItr->second;
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}
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void TargetRegisterExtraInfo::resetPressureAndLiveStates() {
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pressureMap.clear();
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//liveStatesMap.clear();
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// Iterate over all slots.
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// Iterate over all live intervals.
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for (LiveIntervals::iterator liItr = lis->begin(),
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liEnd = lis->end();
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liItr != liEnd; ++liItr) {
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LiveInterval *li = liItr->second;
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const TargetRegisterClass *liTRC;
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if (TargetRegisterInfo::isPhysicalRegister(li->reg))
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continue;
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liTRC = mri->getRegClass(li->reg);
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// For all ranges in the current interal.
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for (LiveInterval::iterator lrItr = li->begin(),
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lrEnd = li->end();
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lrItr != lrEnd; ++lrItr) {
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LiveRange *lr = &*lrItr;
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// For all slots in the current range.
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for (SlotIndex i = lr->start; i != lr->end; i = i.getNextSlot()) {
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// Record increased pressure at index for all overlapping classes.
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for (TargetRegisterInfo::regclass_iterator
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rcItr = tri->regclass_begin(),
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rcEnd = tri->regclass_end();
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rcItr != rcEnd; ++rcItr) {
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const TargetRegisterClass *trc = *rcItr;
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if (trc->allocation_order_begin(*mf) ==
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trc->allocation_order_end(*mf))
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continue;
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unsigned worstAtI = getWorst(li->reg, trc);
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if (worstAtI != 0) {
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pressureMap[i][trc] += worstAtI;
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}
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}
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}
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}
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}
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}
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unsigned TargetRegisterExtraInfo::getPressureAtSlot(
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const TargetRegisterClass *trc,
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SlotIndex i) const {
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PressureMap::const_iterator pmItr = pressureMap.find(i);
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if (pmItr == pressureMap.end())
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return 0;
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const PressureMapLine &pmLine = pmItr->second;
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PressureMapLine::const_iterator pmlItr = pmLine.find(trc);
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if (pmlItr == pmLine.end())
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return 0;
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return pmlItr->second;
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}
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bool TargetRegisterExtraInfo::classOverCapacityAtSlot(
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const TargetRegisterClass *trc,
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SlotIndex i) const {
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return (getPressureAtSlot(trc, i) > getCapacity(trc));
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}
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// ---------- MachineFunctionRenderer implementation ----------
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void RenderMachineFunction::Spacer::print(raw_ostream &os) const {
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if (!prettyHTML)
|
|
return;
|
|
for (unsigned i = 0; i < ns; ++i) {
|
|
os << " ";
|
|
}
|
|
}
|
|
|
|
RenderMachineFunction::Spacer RenderMachineFunction::s(unsigned ns) const {
|
|
return Spacer(ns);
|
|
}
|
|
|
|
raw_ostream& operator<<(raw_ostream &os, const RenderMachineFunction::Spacer &s) {
|
|
s.print(os);
|
|
return os;
|
|
}
|
|
|
|
template <typename Iterator>
|
|
std::string RenderMachineFunction::escapeChars(Iterator sBegin, Iterator sEnd) const {
|
|
std::string r;
|
|
|
|
for (Iterator sItr = sBegin; sItr != sEnd; ++sItr) {
|
|
char c = *sItr;
|
|
|
|
switch (c) {
|
|
case '<': r.append("<"); break;
|
|
case '>': r.append(">"); break;
|
|
case '&': r.append("&"); break;
|
|
case ' ': r.append(" "); break;
|
|
case '\"': r.append("""); break;
|
|
default: r.push_back(c); break;
|
|
}
|
|
}
|
|
|
|
return r;
|
|
}
|
|
|
|
RenderMachineFunction::LiveState
|
|
RenderMachineFunction::getLiveStateAt(const LiveInterval *li,
|
|
SlotIndex i) const {
|
|
const MachineInstr *mi = sis->getInstructionFromIndex(i);
|
|
|
|
// For uses/defs recorded use/def indexes override current liveness and
|
|
// instruction operands (Only for the interval which records the indexes).
|
|
if (i.isUse() || i.isDef()) {
|
|
UseDefs::const_iterator udItr = useDefs.find(li);
|
|
if (udItr != useDefs.end()) {
|
|
const SlotSet &slotSet = udItr->second;
|
|
if (slotSet.count(i)) {
|
|
if (i.isUse()) {
|
|
return Used;
|
|
}
|
|
// else
|
|
return Defined;
|
|
}
|
|
}
|
|
}
|
|
|
|
// If the slot is a load/store, or there's no info in the use/def set then
|
|
// use liveness and instruction operand info.
|
|
if (li->liveAt(i)) {
|
|
|
|
if (mi == 0) {
|
|
if (vrm == 0 ||
|
|
(vrm->getStackSlot(li->reg) == VirtRegMap::NO_STACK_SLOT)) {
|
|
return AliveReg;
|
|
} else {
|
|
return AliveStack;
|
|
}
|
|
} else {
|
|
if (i.isDef() && mi->definesRegister(li->reg, tri)) {
|
|
return Defined;
|
|
} else if (i.isUse() && mi->readsRegister(li->reg)) {
|
|
return Used;
|
|
} else {
|
|
if (vrm == 0 ||
|
|
(vrm->getStackSlot(li->reg) == VirtRegMap::NO_STACK_SLOT)) {
|
|
return AliveReg;
|
|
} else {
|
|
return AliveStack;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return Dead;
|
|
}
|
|
|
|
RenderMachineFunction::PressureState
|
|
RenderMachineFunction::getPressureStateAt(const TargetRegisterClass *trc,
|
|
SlotIndex i) const {
|
|
if (trei.getPressureAtSlot(trc, i) == 0) {
|
|
return Zero;
|
|
} else if (trei.classOverCapacityAtSlot(trc, i)){
|
|
return High;
|
|
}
|
|
return Low;
|
|
}
|
|
|
|
/// \brief Render a machine instruction.
|
|
void RenderMachineFunction::renderMachineInstr(raw_ostream &os,
|
|
const MachineInstr *mi) const {
|
|
std::string s;
|
|
raw_string_ostream oss(s);
|
|
oss << *mi;
|
|
|
|
os << escapeChars(oss.str());
|
|
}
|
|
|
|
template <typename T>
|
|
void RenderMachineFunction::renderVertical(const Spacer &indent,
|
|
raw_ostream &os,
|
|
const T &t) const {
|
|
if (ro.fancyVerticals()) {
|
|
os << indent << "<object\n"
|
|
<< indent + s(2) << "class=\"obj\"\n"
|
|
<< indent + s(2) << "type=\"image/svg+xml\"\n"
|
|
<< indent + s(2) << "width=\"14px\"\n"
|
|
<< indent + s(2) << "height=\"55px\"\n"
|
|
<< indent + s(2) << "data=\"data:image/svg+xml,\n"
|
|
<< indent + s(4) << "<svg xmlns='http://www.w3.org/2000/svg'>\n"
|
|
<< indent + s(6) << "<text x='-55' y='10' "
|
|
"font-family='Courier' font-size='12' "
|
|
"transform='rotate(-90)' "
|
|
"text-rendering='optimizeSpeed' "
|
|
"fill='#000'>" << t << "</text>\n"
|
|
<< indent + s(4) << "</svg>\">\n"
|
|
<< indent << "</object>\n";
|
|
} else {
|
|
std::ostringstream oss;
|
|
oss << t;
|
|
std::string tStr(oss.str());
|
|
|
|
os << indent;
|
|
for (std::string::iterator tStrItr = tStr.begin(), tStrEnd = tStr.end();
|
|
tStrItr != tStrEnd; ++tStrItr) {
|
|
os << *tStrItr << "<br/>";
|
|
}
|
|
os << "\n";
|
|
}
|
|
}
|
|
|
|
void RenderMachineFunction::insertCSS(const Spacer &indent,
|
|
raw_ostream &os) const {
|
|
os << indent << "<style type=\"text/css\">\n"
|
|
<< indent + s(2) << "body { font-color: black; }\n"
|
|
<< indent + s(2) << "table.code td { font-family: monospace; "
|
|
"border-width: 0px; border-style: solid; "
|
|
"border-bottom: 1px solid #dddddd; white-space: nowrap; }\n"
|
|
<< indent + s(2) << "table.code td.p-z { background-color: #000000; }\n"
|
|
<< indent + s(2) << "table.code td.p-l { background-color: #00ff00; }\n"
|
|
<< indent + s(2) << "table.code td.p-h { background-color: #ff0000; }\n"
|
|
<< indent + s(2) << "table.code td.l-n { background-color: #ffffff; }\n"
|
|
<< indent + s(2) << "table.code td.l-d { background-color: #ff0000; }\n"
|
|
<< indent + s(2) << "table.code td.l-u { background-color: #ffff00; }\n"
|
|
<< indent + s(2) << "table.code td.l-r { background-color: #000000; }\n"
|
|
<< indent + s(2) << "table.code td.l-s { background-color: #770000; }\n"
|
|
<< indent + s(2) << "table.code th { border-width: 0px; "
|
|
"border-style: solid; }\n"
|
|
<< indent << "</style>\n";
|
|
}
|
|
|
|
void RenderMachineFunction::renderFunctionSummary(
|
|
const Spacer &indent, raw_ostream &os,
|
|
const char * const renderContextStr) const {
|
|
os << indent << "<h1>Function: " << mf->getFunction()->getName()
|
|
<< "</h1>\n"
|
|
<< indent << "<h2>Rendering context: " << renderContextStr << "</h2>\n";
|
|
}
|
|
|
|
|
|
void RenderMachineFunction::renderPressureTableLegend(
|
|
const Spacer &indent,
|
|
raw_ostream &os) const {
|
|
os << indent << "<h2>Rendering Pressure Legend:</h2>\n"
|
|
<< indent << "<table class=\"code\">\n"
|
|
<< indent + s(2) << "<tr>\n"
|
|
<< indent + s(4) << "<th>Pressure</th><th>Description</th>"
|
|
"<th>Appearance</th>\n"
|
|
<< indent + s(2) << "</tr>\n"
|
|
<< indent + s(2) << "<tr>\n"
|
|
<< indent + s(4) << "<td>No Pressure</td>"
|
|
"<td>No physical registers of this class requested.</td>"
|
|
"<td class=\"p-z\"> </td>\n"
|
|
<< indent + s(2) << "</tr>\n"
|
|
<< indent + s(2) << "<tr>\n"
|
|
<< indent + s(4) << "<td>Low Pressure</td>"
|
|
"<td>Sufficient physical registers to meet demand.</td>"
|
|
"<td class=\"p-l\"> </td>\n"
|
|
<< indent + s(2) << "</tr>\n"
|
|
<< indent + s(2) << "<tr>\n"
|
|
<< indent + s(4) << "<td>High Pressure</td>"
|
|
"<td>Potentially insufficient physical registers to meet demand.</td>"
|
|
"<td class=\"p-h\"> </td>\n"
|
|
<< indent + s(2) << "</tr>\n"
|
|
<< indent << "</table>\n";
|
|
}
|
|
|
|
template <typename CellType>
|
|
void RenderMachineFunction::renderCellsWithRLE(
|
|
const Spacer &indent, raw_ostream &os,
|
|
const std::pair<CellType, unsigned> &rleAccumulator,
|
|
const std::map<CellType, std::string> &cellTypeStrs) const {
|
|
|
|
if (rleAccumulator.second == 0)
|
|
return;
|
|
|
|
typename std::map<CellType, std::string>::const_iterator ctsItr =
|
|
cellTypeStrs.find(rleAccumulator.first);
|
|
|
|
assert(ctsItr != cellTypeStrs.end() && "No string for given cell type.");
|
|
|
|
os << indent + s(4) << "<td class=\"" << ctsItr->second << "\"";
|
|
if (rleAccumulator.second > 1)
|
|
os << " colspan=" << rleAccumulator.second;
|
|
os << "></td>\n";
|
|
}
|
|
|
|
|
|
void RenderMachineFunction::renderCodeTablePlusPI(const Spacer &indent,
|
|
raw_ostream &os) const {
|
|
|
|
std::map<LiveState, std::string> lsStrs;
|
|
lsStrs[Dead] = "l-n";
|
|
lsStrs[Defined] = "l-d";
|
|
lsStrs[Used] = "l-u";
|
|
lsStrs[AliveReg] = "l-r";
|
|
lsStrs[AliveStack] = "l-s";
|
|
|
|
std::map<PressureState, std::string> psStrs;
|
|
psStrs[Zero] = "p-z";
|
|
psStrs[Low] = "p-l";
|
|
psStrs[High] = "p-h";
|
|
|
|
// Open the table...
|
|
|
|
os << indent << "<table cellpadding=0 cellspacing=0 class=\"code\">\n"
|
|
<< indent + s(2) << "<tr>\n";
|
|
|
|
// Render the header row...
|
|
|
|
os << indent + s(4) << "<th>index</th>\n"
|
|
<< indent + s(4) << "<th>instr</th>\n";
|
|
|
|
// Render class names if necessary...
|
|
if (!ro.regClasses().empty()) {
|
|
for (MFRenderingOptions::RegClassSet::const_iterator
|
|
rcItr = ro.regClasses().begin(),
|
|
rcEnd = ro.regClasses().end();
|
|
rcItr != rcEnd; ++rcItr) {
|
|
const TargetRegisterClass *trc = *rcItr;
|
|
os << indent + s(4) << "<th>\n";
|
|
renderVertical(indent + s(6), os, trc->getName());
|
|
os << indent + s(4) << "</th>\n";
|
|
}
|
|
}
|
|
|
|
// FIXME: Is there a nicer way to insert space between columns in HTML?
|
|
if (!ro.regClasses().empty() && !ro.intervals().empty())
|
|
os << indent + s(4) << "<th> </th>\n";
|
|
|
|
// Render interval numbers if necessary...
|
|
if (!ro.intervals().empty()) {
|
|
for (MFRenderingOptions::IntervalSet::const_iterator
|
|
liItr = ro.intervals().begin(),
|
|
liEnd = ro.intervals().end();
|
|
liItr != liEnd; ++liItr) {
|
|
|
|
const LiveInterval *li = *liItr;
|
|
os << indent + s(4) << "<th>\n";
|
|
renderVertical(indent + s(6), os, li->reg);
|
|
os << indent + s(4) << "</th>\n";
|
|
}
|
|
}
|
|
|
|
os << indent + s(2) << "</tr>\n";
|
|
|
|
// End header row, start with the data rows...
|
|
|
|
MachineInstr *mi = 0;
|
|
|
|
// Data rows:
|
|
for (SlotIndex i = sis->getZeroIndex(); i != sis->getLastIndex();
|
|
i = i.getNextSlot()) {
|
|
|
|
// Render the slot column.
|
|
os << indent + s(2) << "<tr height=6ex>\n";
|
|
|
|
// Render the code column.
|
|
if (i.isLoad()) {
|
|
MachineBasicBlock *mbb = sis->getMBBFromIndex(i);
|
|
mi = sis->getInstructionFromIndex(i);
|
|
|
|
if (i == sis->getMBBStartIdx(mbb) || mi != 0 ||
|
|
ro.renderEmptyIndexes()) {
|
|
os << indent + s(4) << "<td rowspan=4>" << i << " </td>\n"
|
|
<< indent + s(4) << "<td rowspan=4>\n";
|
|
|
|
if (i == sis->getMBBStartIdx(mbb)) {
|
|
os << indent + s(6) << "BB#" << mbb->getNumber() << ": \n";
|
|
} else if (mi != 0) {
|
|
os << indent + s(6) << " ";
|
|
renderMachineInstr(os, mi);
|
|
} else {
|
|
// Empty interval - leave blank.
|
|
}
|
|
os << indent + s(4) << "</td>\n";
|
|
} else {
|
|
i = i.getStoreIndex(); // <- Will be incremented to the next index.
|
|
continue;
|
|
}
|
|
}
|
|
|
|
// Render the class columns.
|
|
if (!ro.regClasses().empty()) {
|
|
std::pair<PressureState, unsigned> psRLEAccumulator(Zero, 0);
|
|
for (MFRenderingOptions::RegClassSet::const_iterator
|
|
rcItr = ro.regClasses().begin(),
|
|
rcEnd = ro.regClasses().end();
|
|
rcItr != rcEnd; ++rcItr) {
|
|
const TargetRegisterClass *trc = *rcItr;
|
|
PressureState newPressure = getPressureStateAt(trc, i);
|
|
|
|
if (newPressure == psRLEAccumulator.first) {
|
|
++psRLEAccumulator.second;
|
|
} else {
|
|
renderCellsWithRLE(indent + s(4), os, psRLEAccumulator, psStrs);
|
|
psRLEAccumulator.first = newPressure;
|
|
psRLEAccumulator.second = 1;
|
|
}
|
|
}
|
|
renderCellsWithRLE(indent + s(4), os, psRLEAccumulator, psStrs);
|
|
}
|
|
|
|
// FIXME: Is there a nicer way to insert space between columns in HTML?
|
|
if (!ro.regClasses().empty() && !ro.intervals().empty())
|
|
os << indent + s(4) << "<td width=2em></td>\n";
|
|
|
|
if (!ro.intervals().empty()) {
|
|
std::pair<LiveState, unsigned> lsRLEAccumulator(Dead, 0);
|
|
for (MFRenderingOptions::IntervalSet::const_iterator
|
|
liItr = ro.intervals().begin(),
|
|
liEnd = ro.intervals().end();
|
|
liItr != liEnd; ++liItr) {
|
|
const LiveInterval *li = *liItr;
|
|
LiveState newLiveness = getLiveStateAt(li, i);
|
|
|
|
if (newLiveness == lsRLEAccumulator.first) {
|
|
++lsRLEAccumulator.second;
|
|
} else {
|
|
renderCellsWithRLE(indent + s(4), os, lsRLEAccumulator, lsStrs);
|
|
lsRLEAccumulator.first = newLiveness;
|
|
lsRLEAccumulator.second = 1;
|
|
}
|
|
}
|
|
renderCellsWithRLE(indent + s(4), os, lsRLEAccumulator, lsStrs);
|
|
}
|
|
os << indent + s(2) << "</tr>\n";
|
|
}
|
|
|
|
os << indent << "</table>\n";
|
|
|
|
if (!ro.regClasses().empty())
|
|
renderPressureTableLegend(indent, os);
|
|
}
|
|
|
|
void RenderMachineFunction::renderFunctionPage(
|
|
raw_ostream &os,
|
|
const char * const renderContextStr) const {
|
|
os << "<html>\n"
|
|
<< s(2) << "<head>\n"
|
|
<< s(4) << "<title>" << fqn << "</title>\n";
|
|
|
|
insertCSS(s(4), os);
|
|
|
|
os << s(2) << "<head>\n"
|
|
<< s(2) << "<body >\n";
|
|
|
|
renderFunctionSummary(s(4), os, renderContextStr);
|
|
|
|
os << s(4) << "<br/><br/><br/>\n";
|
|
|
|
//renderLiveIntervalInfoTable(" ", os);
|
|
|
|
os << s(4) << "<br/><br/><br/>\n";
|
|
|
|
renderCodeTablePlusPI(s(4), os);
|
|
|
|
os << s(2) << "</body>\n"
|
|
<< "</html>\n";
|
|
}
|
|
|
|
void RenderMachineFunction::getAnalysisUsage(AnalysisUsage &au) const {
|
|
au.addRequired<SlotIndexes>();
|
|
au.addRequired<LiveIntervals>();
|
|
au.setPreservesAll();
|
|
MachineFunctionPass::getAnalysisUsage(au);
|
|
}
|
|
|
|
bool RenderMachineFunction::runOnMachineFunction(MachineFunction &fn) {
|
|
|
|
mf = &fn;
|
|
mri = &mf->getRegInfo();
|
|
tri = mf->getTarget().getRegisterInfo();
|
|
lis = &getAnalysis<LiveIntervals>();
|
|
sis = &getAnalysis<SlotIndexes>();
|
|
|
|
trei.setup(mf, mri, tri, lis);
|
|
ro.setup(mf, tri, lis, this);
|
|
spillIntervals.clear();
|
|
spillFor.clear();
|
|
useDefs.clear();
|
|
|
|
fqn = mf->getFunction()->getParent()->getModuleIdentifier() + "." +
|
|
mf->getFunction()->getName().str();
|
|
|
|
return false;
|
|
}
|
|
|
|
void RenderMachineFunction::releaseMemory() {
|
|
trei.clear();
|
|
ro.clear();
|
|
spillIntervals.clear();
|
|
spillFor.clear();
|
|
useDefs.clear();
|
|
}
|
|
|
|
void RenderMachineFunction::rememberUseDefs(const LiveInterval *li) {
|
|
|
|
if (!ro.shouldRenderCurrentMachineFunction())
|
|
return;
|
|
|
|
for (MachineRegisterInfo::reg_iterator rItr = mri->reg_begin(li->reg),
|
|
rEnd = mri->reg_end();
|
|
rItr != rEnd; ++rItr) {
|
|
const MachineInstr *mi = &*rItr;
|
|
if (mi->readsRegister(li->reg)) {
|
|
useDefs[li].insert(lis->getInstructionIndex(mi).getUseIndex());
|
|
}
|
|
if (mi->definesRegister(li->reg)) {
|
|
useDefs[li].insert(lis->getInstructionIndex(mi).getDefIndex());
|
|
}
|
|
}
|
|
}
|
|
|
|
void RenderMachineFunction::rememberSpills(
|
|
const LiveInterval *li,
|
|
const std::vector<LiveInterval*> &spills) {
|
|
|
|
if (!ro.shouldRenderCurrentMachineFunction())
|
|
return;
|
|
|
|
for (std::vector<LiveInterval*>::const_iterator siItr = spills.begin(),
|
|
siEnd = spills.end();
|
|
siItr != siEnd; ++siItr) {
|
|
const LiveInterval *spill = *siItr;
|
|
spillIntervals[li].insert(spill);
|
|
spillFor[spill] = li;
|
|
}
|
|
}
|
|
|
|
bool RenderMachineFunction::isSpill(const LiveInterval *li) const {
|
|
SpillForMap::const_iterator sfItr = spillFor.find(li);
|
|
if (sfItr == spillFor.end())
|
|
return false;
|
|
return true;
|
|
}
|
|
|
|
void RenderMachineFunction::renderMachineFunction(
|
|
const char *renderContextStr,
|
|
const VirtRegMap *vrm,
|
|
const char *renderSuffix) {
|
|
if (!ro.shouldRenderCurrentMachineFunction())
|
|
return;
|
|
|
|
this->vrm = vrm;
|
|
trei.reset();
|
|
|
|
std::string rpFileName(mf->getFunction()->getName().str() +
|
|
(renderSuffix ? renderSuffix : "") +
|
|
outputFileSuffix);
|
|
|
|
std::string errMsg;
|
|
raw_fd_ostream outFile(rpFileName.c_str(), errMsg, raw_fd_ostream::F_Binary);
|
|
|
|
renderFunctionPage(outFile, renderContextStr);
|
|
|
|
ro.resetRenderSpecificOptions();
|
|
}
|
|
|
|
std::string RenderMachineFunction::escapeChars(const std::string &s) const {
|
|
return escapeChars(s.begin(), s.end());
|
|
}
|
|
|
|
}
|