/** Performs peephole optimizations on a program's live methods. */
private static void peephole(final BloatContext context) {
final Set liveMethods = new TreeSet(new MemberRefComparator());
final CallGraph cg = context.getCallGraph();
liveMethods.addAll(cg.liveMethods());
// Perform peephole optimizations. We do this separately because
// some peephole optimizations do things to the stack that
// inlining doesn't like. For instance, a peephole optimizations
// might make it so that a method has a non-empty stack upon
// return. Inlining will barf at the sight of this.
BloatBenchmark.tr("Performing peephole optimizations");
final Iterator iter = liveMethods.iterator();
while (BloatBenchmark.PEEPHOLE && iter.hasNext()) {
try {
final MethodEditor live = context.editMethod((MemberRef) iter.next());
Peephole.transform(live);
context.commit(live.methodInfo());
context.release(live.methodInfo());
} catch (final NoSuchMethodException ex314) {
BloatBenchmark.err.println("** Could not find method " + ex314.getMessage());
ex314.printStackTrace(System.err);
System.exit(1);
}
}
}
