brouter/brouter-expressions/src/main/java/btools/expressions/ProfileComparator.java

52 lines
2 KiB
Java

package btools.expressions;
import java.io.File;
import java.util.Random;
public final class ProfileComparator {
public static void main(String[] args) {
if (args.length != 4) {
System.out.println("usage: java ProfileComparator <lookup-file> <profile1> <profile2> <nsamples>");
return;
}
File lookupFile = new File(args[0]);
File profile1File = new File(args[1]);
File profile2File = new File(args[2]);
int nsamples = Integer.parseInt(args[3]);
testContext(lookupFile, profile1File, profile2File, nsamples, false);
testContext(lookupFile, profile1File, profile2File, nsamples, true);
}
private static void testContext(File lookupFile, File profile1File, File profile2File, int nsamples, boolean nodeContext) {
// read lookup.dat + profiles
BExpressionMetaData meta1 = new BExpressionMetaData();
BExpressionMetaData meta2 = new BExpressionMetaData();
BExpressionContext expctx1 = nodeContext ? new BExpressionContextNode(meta1) : new BExpressionContextWay(meta1);
BExpressionContext expctx2 = nodeContext ? new BExpressionContextNode(meta2) : new BExpressionContextWay(meta2);
// if same profiles, compare different optimization levels
if (profile1File.getName().equals(profile2File.getName())) {
expctx2.skipConstantExpressionOptimizations = true;
}
meta1.readMetaData(lookupFile);
meta2.readMetaData(lookupFile);
expctx1.parseFile(profile1File, "global");
System.out.println("usedTags1=" + expctx1.usedTagList());
expctx2.parseFile(profile2File, "global");
System.out.println("usedTags2=" + expctx2.usedTagList());
System.out.println("nodeContext=" + nodeContext + " nodeCount1=" + expctx1.expressionNodeCount + " nodeCount2=" + expctx2.expressionNodeCount);
Random rnd = new Random();
for (int i = 0; i < nsamples; i++) {
int[] data = expctx1.generateRandomValues(rnd);
expctx1.evaluate(data);
expctx2.evaluate(data);
expctx1.assertAllVariablesEqual(expctx2);
}
}
}