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Fixes generation of CFG debug information

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This commit is contained in:
Alexey Andreev 2014-08-24 17:37:57 +04:00
parent 97e107635b
commit 86003b45ca
3 changed files with 18 additions and 21 deletions
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4
teavm-core/src/main/java/org/teavm/model/BasicBlock.java
View File

@ -173,9 +173,7 @@ public class BasicBlock implements BasicBlockReader {
@Override
public void readInstruction(int index, InstructionReader reader) {
Instruction insn = instructions.get(index);
if (insn.getLocation() != null) {
reader.location(insn.getLocation());
}
reader.location(insn.getLocation());
insn.acceptVisitor(new InstructionReadVisitor(reader));
}

2
teavm-core/src/main/java/org/teavm/model/util/LocationGraphBuilder.java
View File

@ -66,7 +66,7 @@ class LocationGraphBuilder {
for (Instruction insn : block.getInstructions()) {
if (insn.getLocation() != null) {
if (!started) {
step.startLocations.add(location);
step.startLocations.add(insn.getLocation());
}
started = true;
if (blockLocations[step.block] == null) {

33
teavm-core/src/main/java/org/teavm/parsing/ProgramParser.java
View File

@ -45,9 +45,6 @@ public class ProgramParser implements VariableDebugInformation {
private int minLocal;
private Program program;
private String currentClassName;
private int currentLineNumber;
private boolean lineNumberChanged;
private InstructionLocation lastInsnLocation;
private Map<Integer, List<LocalVariableNode>> localVariableMap = new HashMap<>();
private Map<Instruction, Map<Integer, String>> variableDebugNames = new HashMap<>();
@ -88,8 +85,6 @@ public class ProgramParser implements VariableDebugInformation {
}
public Program parse(MethodNode method, String className) {
currentLineNumber = -1;
lineNumberChanged = true;
program = new Program();
this.currentClassName = className;
InsnList instructions = method.instructions;
@ -103,7 +98,7 @@ public class ProgramParser implements VariableDebugInformation {
insn.setTarget(program.basicBlockAt(1));
program.basicBlockAt(0).getInstructions().add(insn);
doAnalyze(method);
assemble();
assemble(method);
for (int i = 0; i < program.basicBlockCount(); ++i) {
BasicBlock block = program.basicBlockAt(i);
for (int j = 0; j < block.getTryCatchBlocks().size(); ++j) {
@ -266,9 +261,11 @@ public class ProgramParser implements VariableDebugInformation {
}
}
private void assemble() {
private void assemble(MethodNode methodNode) {
BasicBlock basicBlock = null;
Map<Integer, String> accumulatedDebugNames = new HashMap<>();
Integer lastLineNumber = null;
InstructionLocation lastLocation = null;
for (int i = 0; i < basicBlocks.size(); ++i) {
BasicBlock newBasicBlock = basicBlocks.get(i);
if (newBasicBlock != null) {
@ -296,7 +293,19 @@ public class ProgramParser implements VariableDebugInformation {
}
accumulatedDebugNames.putAll(debugNames);
}
AbstractInsnNode insnNode = methodNode.instructions.get(i);
if (insnNode instanceof LabelNode) {
Label label = ((LabelNode)insnNode).getLabel();
Integer lineNumber = lineNumbers.get(label);
if (lineNumber != null && !lineNumber.equals(lastLineNumber)) {
lastLineNumber = lineNumber;
lastLocation = new InstructionLocation(fileName, lastLineNumber);
}
}
if (builtInstructions != null) {
for (Instruction insn : builtInstructions) {
insn.setLocation(lastLocation);
}
basicBlock.getInstructions().addAll(builtInstructions);
}
}
@ -347,11 +356,6 @@ public class ProgramParser implements VariableDebugInformation {
}
private void addInstruction(Instruction insn) {
if (lineNumberChanged) {
lastInsnLocation = new InstructionLocation(fileName, currentLineNumber);
lineNumberChanged = false;
}
insn.setLocation(lastInsnLocation);
builder.add(insn);
}
@ -602,11 +606,6 @@ public class ProgramParser implements VariableDebugInformation {
@Override
public void visitLabel(Label label) {
Integer lineNumber = lineNumbers.get(label);
if (lineNumber != null) {
currentLineNumber = lineNumber;
lineNumberChanged = true;
}
}
private void emitBranching(BranchingCondition condition, int value, int target) {