mirror of
https://github.com/Eaglercraft-TeaVM-Fork/eagler-teavm.git
synced 2024-12-22 16:14:10 -08:00
Improve GVN
This commit is contained in:
Alexey Andreev
parent
2c6068b36a
commit
c430578426
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@ -15,6 +15,8 @@
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*/
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package org.teavm.model.optimization;
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import com.carrotsearch.hppc.ObjectIntHashMap;
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import com.carrotsearch.hppc.ObjectIntMap;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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@ -29,6 +31,7 @@ import org.teavm.model.Instruction;
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import org.teavm.model.InvokeDynamicInstruction;
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import org.teavm.model.Program;
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import org.teavm.model.Variable;
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import org.teavm.model.instructions.AbstractInstructionVisitor;
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import org.teavm.model.instructions.ArrayLengthInstruction;
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import org.teavm.model.instructions.AssignInstruction;
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import org.teavm.model.instructions.BinaryBranchingInstruction;
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@ -38,34 +41,27 @@ import org.teavm.model.instructions.BranchingInstruction;
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import org.teavm.model.instructions.CastInstruction;
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import org.teavm.model.instructions.CastIntegerInstruction;
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import org.teavm.model.instructions.CastNumberInstruction;
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import org.teavm.model.instructions.ClassConstantInstruction;
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import org.teavm.model.instructions.CloneArrayInstruction;
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import org.teavm.model.instructions.ConstructArrayInstruction;
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import org.teavm.model.instructions.ConstructInstruction;
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import org.teavm.model.instructions.ConstructMultiArrayInstruction;
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import org.teavm.model.instructions.DoubleConstantInstruction;
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import org.teavm.model.instructions.EmptyInstruction;
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import org.teavm.model.instructions.ExitInstruction;
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import org.teavm.model.instructions.FloatConstantInstruction;
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import org.teavm.model.instructions.GetElementInstruction;
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import org.teavm.model.instructions.GetFieldInstruction;
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import org.teavm.model.instructions.InitClassInstruction;
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import org.teavm.model.instructions.InstructionVisitor;
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import org.teavm.model.instructions.IntegerConstantInstruction;
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import org.teavm.model.instructions.InvokeInstruction;
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import org.teavm.model.instructions.IsInstanceInstruction;
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import org.teavm.model.instructions.JumpInstruction;
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import org.teavm.model.instructions.LongConstantInstruction;
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import org.teavm.model.instructions.MonitorEnterInstruction;
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import org.teavm.model.instructions.MonitorExitInstruction;
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import org.teavm.model.instructions.NegateInstruction;
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import org.teavm.model.instructions.NullCheckInstruction;
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import org.teavm.model.instructions.NullConstantInstruction;
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import org.teavm.model.instructions.NumericOperandType;
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import org.teavm.model.instructions.PutElementInstruction;
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import org.teavm.model.instructions.PutFieldInstruction;
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import org.teavm.model.instructions.RaiseInstruction;
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import org.teavm.model.instructions.StringConstantInstruction;
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import org.teavm.model.instructions.SwitchInstruction;
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import org.teavm.model.instructions.UnwrapArrayInstruction;
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import org.teavm.model.util.ProgramUtils;
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@ -74,6 +70,9 @@ public class GlobalValueNumbering implements MethodOptimization {
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private Map<String, KnownValue> knownValues = new HashMap<>();
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private boolean eliminate;
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private int[] map;
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private int[] replaceMap;
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private boolean[] deletedVars;
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private ObjectIntMap<Number> constantIndexes = new ObjectIntHashMap<>();
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private Number[] numericConstants;
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private Number evaluatedConstant;
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private int receiver;
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@ -104,10 +103,14 @@ public class GlobalValueNumbering implements MethodOptimization {
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domTree = GraphUtils.buildDominatorTree(cfg);
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Graph dom = GraphUtils.buildDominatorGraph(domTree, cfg.size());
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map = new int[program.variableCount()];
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replaceMap = new int[program.variableCount()];
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numericConstants = new Number[program.variableCount()];
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for (int i = 0; i < map.length; ++i) {
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map[i] = i;
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replaceMap[i] = i;
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}
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deletedVars = new boolean[program.variableCount()];
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preprocessConstants();
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List<List<Incoming>> outgoings = ProgramUtils.getPhiOutputs(program);
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int[] stack = new int[cfg.size() * 2];
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@ -163,7 +166,7 @@ public class GlobalValueNumbering implements MethodOptimization {
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}
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}
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for (Incoming incoming : outgoings.get(v)) {
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int value = map[incoming.getValue().getIndex()];
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int value = replaceMap[incoming.getValue().getIndex()];
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incoming.setValue(program.variableAt(value));
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}
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@ -172,7 +175,7 @@ public class GlobalValueNumbering implements MethodOptimization {
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}
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}
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for (int i = 0; i < map.length; ++i) {
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if (map[i] != i) {
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if (deletedVars[i]) {
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program.deleteVariable(i);
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}
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}
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@ -182,7 +185,19 @@ public class GlobalValueNumbering implements MethodOptimization {
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return affected;
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}
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private void preprocessConstants() {
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for (BasicBlock block : program.getBasicBlocks()) {
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for (Instruction instruction : block) {
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instruction.acceptVisitor(constantPreprocessor);
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}
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}
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}
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private void bind(int var, String value) {
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bind(var, value, false);
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}
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private void bind(int var, String value, boolean noReplace) {
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String name = program.variableAt(map[var]).getDebugName();
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if (name == null || namesPreserved) {
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name = "";
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@ -202,8 +217,12 @@ public class GlobalValueNumbering implements MethodOptimization {
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}
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if (known != null && domTree.dominates(known.location, currentBlockIndex) && known.value != var
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&& namesCompatible) {
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eliminate = true;
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map[var] = known.value;
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if (!noReplace) {
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replaceMap[var] = known.value;
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deletedVars[var] = true;
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eliminate = true;
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}
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if (!name.isEmpty()) {
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program.variableAt(known.value).setDebugName(name);
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knownValues.put(name + ":" + value, known);
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@ -219,50 +238,49 @@ public class GlobalValueNumbering implements MethodOptimization {
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}
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}
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private InstructionVisitor optimizer = new InstructionVisitor() {
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@Override
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public void visit(EmptyInstruction insn) {
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}
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@Override
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public void visit(ClassConstantInstruction insn) {
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}
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@Override
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public void visit(NullConstantInstruction insn) {
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private InstructionVisitor constantPreprocessor = new AbstractInstructionVisitor() {
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private void setConstant(int index, Number value) {
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numericConstants[index] = value;
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int knownIndex = constantIndexes.getOrDefault(value, -1);
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if (knownIndex < 0) {
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constantIndexes.put(value, index);
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} else {
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map[index] = knownIndex;
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}
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}
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@Override
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public void visit(IntegerConstantInstruction insn) {
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numericConstants[insn.getReceiver().getIndex()] = insn.getConstant();
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setConstant(insn.getReceiver().getIndex(), insn.getConstant());
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}
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@Override
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public void visit(LongConstantInstruction insn) {
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numericConstants[insn.getReceiver().getIndex()] = insn.getConstant();
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setConstant(insn.getReceiver().getIndex(), insn.getConstant());
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}
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@Override
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public void visit(FloatConstantInstruction insn) {
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numericConstants[insn.getReceiver().getIndex()] = insn.getConstant();
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setConstant(insn.getReceiver().getIndex(), insn.getConstant());
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}
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@Override
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public void visit(DoubleConstantInstruction insn) {
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numericConstants[insn.getReceiver().getIndex()] = insn.getConstant();
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}
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@Override
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public void visit(StringConstantInstruction insn) {
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setConstant(insn.getReceiver().getIndex(), insn.getConstant());
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}
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};
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private InstructionVisitor optimizer = new AbstractInstructionVisitor() {
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@Override
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public void visit(BinaryInstruction insn) {
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int a = map[insn.getFirstOperand().getIndex()];
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int p = replaceMap[insn.getFirstOperand().getIndex()];
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int b = map[insn.getSecondOperand().getIndex()];
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insn.setFirstOperand(program.variableAt(a));
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insn.setSecondOperand(program.variableAt(b));
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int q = replaceMap[insn.getSecondOperand().getIndex()];
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insn.setFirstOperand(program.variableAt(p));
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insn.setSecondOperand(program.variableAt(q));
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boolean commutative = false;
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boolean noReplace = false;
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String value;
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switch (insn.getOperation()) {
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case ADD:
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@ -284,6 +302,7 @@ public class GlobalValueNumbering implements MethodOptimization {
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break;
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case COMPARE:
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value = "$";
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noReplace = true;
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break;
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case AND:
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value = "&";
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@ -501,7 +520,8 @@ public class GlobalValueNumbering implements MethodOptimization {
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@Override
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public void visit(NegateInstruction insn) {
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int a = map[insn.getOperand().getIndex()];
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insn.setOperand(program.variableAt(a));
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int p = replaceMap[insn.getOperand().getIndex()];
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insn.setOperand(program.variableAt(p));
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bind(insn.getReceiver().getIndex(), "-@" + a);
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Number value = numericConstants[a];
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@ -541,20 +561,23 @@ public class GlobalValueNumbering implements MethodOptimization {
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insn.getAssignee().setLabel(insn.getReceiver().getLabel());
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}
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map[insn.getReceiver().getIndex()] = map[insn.getAssignee().getIndex()];
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replaceMap[insn.getReceiver().getIndex()] = replaceMap[insn.getAssignee().getIndex()];
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eliminate = true;
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}
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@Override
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public void visit(CastInstruction insn) {
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int a = map[insn.getValue().getIndex()];
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insn.setValue(program.variableAt(a));
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int p = replaceMap[insn.getValue().getIndex()];
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insn.setValue(program.variableAt(p));
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bind(insn.getReceiver().getIndex(), "@" + a + "::" + insn.getTargetType());
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}
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@Override
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public void visit(CastNumberInstruction insn) {
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int a = map[insn.getValue().getIndex()];
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insn.setValue(program.variableAt(a));
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int p = replaceMap[insn.getValue().getIndex()];
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insn.setValue(program.variableAt(p));
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bind(insn.getReceiver().getIndex(), "@" + a + "::" + insn.getTargetType());
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Number value = numericConstants[a];
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@ -581,7 +604,8 @@ public class GlobalValueNumbering implements MethodOptimization {
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@Override
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public void visit(CastIntegerInstruction insn) {
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int a = map[insn.getValue().getIndex()];
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insn.setValue(program.variableAt(a));
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int p = replaceMap[insn.getValue().getIndex()];
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insn.setValue(program.variableAt(p));
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bind(insn.getReceiver().getIndex(), "@" + a + "::" + insn.getTargetType() + " " + insn.getDirection());
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Number value = numericConstants[a];
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@ -611,56 +635,48 @@ public class GlobalValueNumbering implements MethodOptimization {
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@Override
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public void visit(BranchingInstruction insn) {
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int a = map[insn.getOperand().getIndex()];
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int a = replaceMap[insn.getOperand().getIndex()];
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insn.setOperand(program.variableAt(a));
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}
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@Override
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public void visit(BinaryBranchingInstruction insn) {
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int a = map[insn.getFirstOperand().getIndex()];
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int b = map[insn.getSecondOperand().getIndex()];
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int a = replaceMap[insn.getFirstOperand().getIndex()];
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int b = replaceMap[insn.getSecondOperand().getIndex()];
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insn.setFirstOperand(program.variableAt(a));
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insn.setSecondOperand(program.variableAt(b));
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}
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@Override
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public void visit(JumpInstruction insn) {
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}
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@Override
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public void visit(SwitchInstruction insn) {
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int a = map[insn.getCondition().getIndex()];
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int a = replaceMap[insn.getCondition().getIndex()];
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insn.setCondition(program.variableAt(a));
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}
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@Override
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public void visit(ExitInstruction insn) {
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if (insn.getValueToReturn() != null) {
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int a = map[insn.getValueToReturn().getIndex()];
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int a = replaceMap[insn.getValueToReturn().getIndex()];
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insn.setValueToReturn(program.variableAt(a));
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}
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}
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@Override
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public void visit(RaiseInstruction insn) {
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int a = map[insn.getException().getIndex()];
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int a = replaceMap[insn.getException().getIndex()];
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insn.setException(program.variableAt(a));
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}
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@Override
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public void visit(ConstructArrayInstruction insn) {
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int a = map[insn.getSize().getIndex()];
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int a = replaceMap[insn.getSize().getIndex()];
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insn.setSize(program.variableAt(a));
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}
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@Override
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public void visit(ConstructInstruction insn) {
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}
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@Override
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public void visit(ConstructMultiArrayInstruction insn) {
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for (int i = 0; i < insn.getDimensions().size(); ++i) {
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int a = map[insn.getDimensions().get(i).getIndex()];
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int a = replaceMap[insn.getDimensions().get(i).getIndex()];
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insn.getDimensions().set(i, program.variableAt(a));
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}
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}
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@ -668,7 +684,7 @@ public class GlobalValueNumbering implements MethodOptimization {
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@Override
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public void visit(GetFieldInstruction insn) {
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if (insn.getInstance() != null) {
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int instance = map[insn.getInstance().getIndex()];
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int instance = replaceMap[insn.getInstance().getIndex()];
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insn.setInstance(program.variableAt(instance));
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}
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}
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@ -676,55 +692,57 @@ public class GlobalValueNumbering implements MethodOptimization {
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@Override
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public void visit(PutFieldInstruction insn) {
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if (insn.getInstance() != null) {
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int instance = map[insn.getInstance().getIndex()];
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int instance = replaceMap[insn.getInstance().getIndex()];
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insn.setInstance(program.variableAt(instance));
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}
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int val = map[insn.getValue().getIndex()];
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int val = replaceMap[insn.getValue().getIndex()];
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insn.setValue(program.variableAt(val));
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}
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@Override
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public void visit(ArrayLengthInstruction insn) {
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int a = map[insn.getArray().getIndex()];
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insn.setArray(program.variableAt(a));
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int p = replaceMap[insn.getArray().getIndex()];
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insn.setArray(program.variableAt(p));
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bind(insn.getReceiver().getIndex(), "@" + a + ".length");
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}
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@Override
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public void visit(CloneArrayInstruction insn) {
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int a = map[insn.getArray().getIndex()];
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int a = replaceMap[insn.getArray().getIndex()];
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insn.setArray(program.variableAt(a));
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}
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@Override
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public void visit(UnwrapArrayInstruction insn) {
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int a = map[insn.getArray().getIndex()];
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insn.setArray(program.variableAt(a));
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int p = replaceMap[insn.getArray().getIndex()];
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insn.setArray(program.variableAt(p));
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bind(insn.getReceiver().getIndex(), "@" + a + ".data");
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}
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@Override
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public void visit(GetElementInstruction insn) {
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int a = map[insn.getArray().getIndex()];
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int a = replaceMap[insn.getArray().getIndex()];
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insn.setArray(program.variableAt(a));
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int index = map[insn.getIndex().getIndex()];
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int index = replaceMap[insn.getIndex().getIndex()];
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insn.setIndex(program.variableAt(index));
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}
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@Override
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public void visit(PutElementInstruction insn) {
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int a = map[insn.getArray().getIndex()];
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int a = replaceMap[insn.getArray().getIndex()];
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insn.setArray(program.variableAt(a));
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int index = map[insn.getIndex().getIndex()];
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int index = replaceMap[insn.getIndex().getIndex()];
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insn.setIndex(program.variableAt(index));
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int val = map[insn.getValue().getIndex()];
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int val = replaceMap[insn.getValue().getIndex()];
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insn.setValue(program.variableAt(val));
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}
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@Override
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public void visit(InvokeInstruction insn) {
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if (insn.getInstance() != null) {
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int instance = map[insn.getInstance().getIndex()];
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int instance = replaceMap[insn.getInstance().getIndex()];
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insn.setInstance(program.variableAt(instance));
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}
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insn.replaceArguments(mapper);
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@ -736,35 +754,33 @@ public class GlobalValueNumbering implements MethodOptimization {
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insn.getArguments().replaceAll(mapper);
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}
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private UnaryOperator<Variable> mapper = var -> program.variableAt(map[var.getIndex()]);
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private UnaryOperator<Variable> mapper = var -> program.variableAt(replaceMap[var.getIndex()]);
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@Override
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public void visit(IsInstanceInstruction insn) {
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int val = map[insn.getValue().getIndex()];
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insn.setValue(program.variableAt(val));
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int p = replaceMap[insn.getValue().getIndex()];
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insn.setValue(program.variableAt(p));
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bind(insn.getReceiver().getIndex(), "@" + val + " :? " + insn.getType());
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}
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@Override
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public void visit(InitClassInstruction insn) {
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}
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@Override
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public void visit(NullCheckInstruction insn) {
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int val = map[insn.getValue().getIndex()];
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insn.setValue(program.variableAt(val));
|
||||
int p = replaceMap[insn.getValue().getIndex()];
|
||||
insn.setValue(program.variableAt(p));
|
||||
bind(insn.getReceiver().getIndex(), "nullCheck @" + val);
|
||||
}
|
||||
|
||||
@Override
|
||||
public void visit(MonitorEnterInstruction insn) {
|
||||
int val = map[insn.getObjectRef().getIndex()];
|
||||
int val = replaceMap[insn.getObjectRef().getIndex()];
|
||||
insn.setObjectRef(program.variableAt(val));
|
||||
}
|
||||
|
||||
@Override
|
||||
public void visit(MonitorExitInstruction insn) {
|
||||
int val = map[insn.getObjectRef().getIndex()];
|
||||
int val = replaceMap[insn.getObjectRef().getIndex()];
|
||||
insn.setObjectRef(program.variableAt(val));
|
||||
}
|
||||
};
|
||||
|
|
|
|||
|
|
@ -24,7 +24,7 @@ function $rt_nextId() {
|
|||
return x;
|
||||
}
|
||||
function $rt_compare(a, b) {
|
||||
return a > b ? 1 : a < b ? -1 : 0;
|
||||
return a > b ? 1 : a < b ? -1 : a === b ? 0 : 1;
|
||||
}
|
||||
function $rt_isInstance(obj, cls) {
|
||||
return obj !== null && !!obj.constructor.$meta && $rt_isAssignable(obj.constructor, cls);
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user