Backout of [JDK-8309271](https://bugs.openjdk.org/browse/JDK-8309271) which has known bugs, possible bugs and performance issues.
Found bugs: - When refreshing `CompilerDirectivesAddDCmd::execute` will call `DirectivesStack::hasMatchingDirectives(mh, true)` which only considers the compiler directive which is on the top of the directives stack. As more than one directive can be added, `CompilerDirectivesAddDCmd::execute` will not behave as expected. - A Java method with old directives might be in the compilation queue. A request to recompile it with new directives will be ignored. There are other concerns: bugs and performance issues. Possible bugs: - `has_matching_directives` might not be cleared. A nmethod might get into the unloading state before `CodeCache::recompile_marked_directives_matches`. If the nmethod has been used to mark a Java method and it is the only nmethod, there will be no nmethod in CodeCache to reach the Java method to clear the mark. - A Java method might have been compiled with new directives before `CodeCache::recompile_marked_directives_matches`. `CodeCache::recompile_marked_directives_matches` will recompile it again. - JIT compiler might be compiling a Java method with old directives. A request to recompile it with new directives will be ignored. Performance issues: - Usually directives are updated for a small number of Java methods. If CodeCache has thousands of nmethods, `CodeCache::recompile_marked_directives_matches` will be traversing nmethods most of which don't need recompilation. The backout is not clean because of removal of `CompiledMethod`. Tested with release and fastdebug builds: tier1 and tier2 passed. ------------- Commit messages: - 8332111: [BACKOUT] A way to align already compiled methods with compiler directives Changes: https://git.openjdk.org/jdk/pull/19215/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=19215&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8332111 Stats: 380 lines in 15 files changed: 3 ins; 347 del; 30 mod Patch: https://git.openjdk.org/jdk/pull/19215.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/19215/head:pull/19215 PR: https://git.openjdk.org/jdk/pull/19215
