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package com.seaofnodes.simple;
import com.seaofnodes.simple.codegen.CodeGen;
import java.util.Map;
import java.util.TreeMap;
import org.junit.runner.*;
import org.junit.runner.notification.*;
// Run existing tests and sum actual allocations, including ones without goldens.
// Helpers call record after allocation; ordinary JUnit runs collect nothing.
public class SpillStats extends RunListener {
private static SpillStats ACTIVE;
private Description _test;
private int _qualityFailures;
private final Map<String,long[]> _totals = new TreeMap<>();
@Override public void testStarted(Description test) { _test = test; }
public static void record(CodeGen code, String cohort, String cpu, String abi) {
if( ACTIVE==null ) return;
String test = ACTIVE._test.getTestClass().getSimpleName()+"."+ACTIVE._test.getMethodName();
for( String key : new String[]{cohort+","+cpu+","+abi,cohort+",ALL,ALL"} ) {
long[] sum = ACTIVE._totals.computeIfAbsent(key,k -> new long[3]);
sum[0]++; sum[1] += code._regAlloc._spills; sum[2] += code._regAlloc._spillScaled;
}
System.out.println("allocation,"+cohort+","+test+","+cpu+","+abi+","+
code._regAlloc._spills+","+code._regAlloc._spillScaled);
}
// Keep running every CPU and native result check when measuring quality.
// A changed golden still makes spill-stats fail at the end.
public static void checkSpills(int expected, int actual) {
if( expected==-1 ) return;
try { org.junit.Assert.assertEquals("Expect spills:",expected,actual,Math.max(1,expected>>3)); }
catch( AssertionError error ) {
if( ACTIVE==null ) throw error;
ACTIVE._qualityFailures++;
System.err.println(ACTIVE._test+": "+error.getMessage());
}
}
public static void main(String[] args) throws ClassNotFoundException {
if( args.length==0 ) args = new String[]{"Chapter20Test","Chapter21Test","Chapter21AllocTest","BrainFuckTest","MergeSortTest"};
Class<?>[] tests = new Class<?>[args.length];
for( int i=0; i<args.length; i++ )
tests[i] = Class.forName("com.seaofnodes.simple."+args[i]);
ACTIVE = new SpillStats();
JUnitCore junit = new JUnitCore();
junit.addListener(ACTIVE);
Result result = junit.run(tests);
boolean passed = result.wasSuccessful() && ACTIVE._qualityFailures==0;
if( !passed ) System.out.println("FAILED test run: totals are not a complete comparison.");
System.out.println("cohort,cpu,abi,allocations,splits,scaled");
for( var row : ACTIVE._totals.entrySet() ) {
long[] sum = row.getValue();
System.out.println(row.getKey()+","+sum[0]+","+sum[1]+","+sum[2]);
}
for( Failure failure : result.getFailures() ) System.err.println(failure.getTrace());
System.out.println("Tests: "+result.getRunCount()+", failures: "+result.getFailureCount());
System.out.println("Spill golden failures: "+ACTIVE._qualityFailures);
ACTIVE = null;
if( !passed ) System.exit(1);
}
}
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