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Fixes register allocation bugs

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This commit is contained in:
konsoletyper 2014-01-27 11:34:55 +04:00
parent b7917f2511
commit 0eb4e54e51
3 changed files with 13 additions and 7 deletions
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2
teavm-core/src/main/java/org/teavm/model/util/LivenessAnalyzer.java
View File

@ -118,7 +118,7 @@ public class LivenessAnalyzer {
}
private boolean dominates(int a, int b) {
return domLeft[a] <= domLeft[b] && domRight[a] >= domRight[b];
return domLeft[a] < domLeft[b] && domRight[a] > domRight[b];
}
private static class Task {

15
teavm-core/src/main/java/org/teavm/model/util/RegisterAllocator.java
View File

@ -15,9 +15,7 @@
*/
package org.teavm.model.util;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.*;
import org.teavm.common.DisjointSet;
import org.teavm.common.Graph;
import org.teavm.model.*;
@ -42,7 +40,7 @@ public class RegisterAllocator {
int[] classArray = congruenceClasses.pack(program.variableCount());
int[] colors = new int[program.variableCount()];
Arrays.fill(colors, -1);
for (int i = 0; i < method.parameterCount(); ++i) {
for (int i = 0; i <= method.parameterCount(); ++i) {
colors[i] = i;
}
GraphColorer colorer = new GraphColorer();
@ -61,6 +59,7 @@ public class RegisterAllocator {
private List<PhiArgumentCopy> insertPhiArgumentsCopies(Program program) {
List<PhiArgumentCopy> copies = new ArrayList<>();
for (int i = 0; i < program.basicBlockCount(); ++i) {
Map<BasicBlock, BasicBlock> blockMap = new HashMap<>();
for (final Phi phi : program.basicBlockAt(i).getPhis()) {
for (Incoming incoming : phi.getIncomings()) {
PhiArgumentCopy copy = new PhiArgumentCopy();
@ -70,6 +69,12 @@ public class RegisterAllocator {
copyInstruction.setReceiver(program.createVariable());
copyInstruction.setAssignee(incoming.getValue());
copy.var = copyInstruction.getReceiver().getIndex();
BasicBlock source = blockMap.get(incoming.getSource());
if (source == null) {
source = incoming.getSource();
} else {
incoming.setSource(source);
}
if (incoming.getSource().getLastInstruction() instanceof JumpInstruction) {
copy.index = incoming.getSource().getInstructions().size() - 1;
copy.block = incoming.getSource();
@ -89,10 +94,12 @@ public class RegisterAllocator {
}
}
});
blockMap.put(source, copyBlock);
incoming.setSource(copyBlock);
copy.index = 0;
copy.block = incoming.getSource();
}
incoming.setValue(copyInstruction.getReceiver());
copies.add(copy);
}
}

3
teavm-core/src/main/java/org/teavm/optimization/ClassSetOptimizer.java
View File

@ -27,8 +27,7 @@ import org.teavm.model.MethodHolder;
*/
public class ClassSetOptimizer {
private List<MethodOptimization> optimizations = Arrays.<MethodOptimization>asList(
new CommonSubexpressionElimination(), new UnusedVariableElimination(),
new EmptyBlockElimination());
new CommonSubexpressionElimination(), new UnusedVariableElimination());
public void optimizeAll(ListableClassHolderSource classSource) {
for (String className : classSource.getClassNames()) {