diff -r 4ebc2e2fb97c -r 71c04702a3d5 src/hotspot/share/ci/ciReplay.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/ci/ciReplay.cpp	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,1244 @@
+/*
+ * Copyright (c) 2013, 2017, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#include "precompiled.hpp"
+#include "ci/ciMethodData.hpp"
+#include "ci/ciReplay.hpp"
+#include "ci/ciSymbol.hpp"
+#include "ci/ciKlass.hpp"
+#include "ci/ciUtilities.hpp"
+#include "compiler/compileBroker.hpp"
+#include "memory/allocation.inline.hpp"
+#include "memory/oopFactory.hpp"
+#include "memory/resourceArea.hpp"
+#include "oops/oop.inline.hpp"
+#include "prims/jvm.h"
+#include "utilities/copy.hpp"
+#include "utilities/macros.hpp"
+
+#ifndef PRODUCT
+
+// ciReplay
+
+typedef struct _ciMethodDataRecord {
+  const char* _klass_name;
+  const char* _method_name;
+  const char* _signature;
+
+  int _state;
+  int _current_mileage;
+
+  intptr_t* _data;
+  char*     _orig_data;
+  Klass**   _classes;
+  Method**  _methods;
+  int*      _classes_offsets;
+  int*      _methods_offsets;
+  int       _data_length;
+  int       _orig_data_length;
+  int       _classes_length;
+  int       _methods_length;
+} ciMethodDataRecord;
+
+typedef struct _ciMethodRecord {
+  const char* _klass_name;
+  const char* _method_name;
+  const char* _signature;
+
+  int _instructions_size;
+  int _interpreter_invocation_count;
+  int _interpreter_throwout_count;
+  int _invocation_counter;
+  int _backedge_counter;
+} ciMethodRecord;
+
+typedef struct _ciInlineRecord {
+  const char* _klass_name;
+  const char* _method_name;
+  const char* _signature;
+
+  int _inline_depth;
+  int _inline_bci;
+} ciInlineRecord;
+
+class  CompileReplay;
+static CompileReplay* replay_state;
+
+class CompileReplay : public StackObj {
+ private:
+  FILE*   _stream;
+  Thread* _thread;
+  Handle  _protection_domain;
+  Handle  _loader;
+
+  GrowableArray<ciMethodRecord*>     _ci_method_records;
+  GrowableArray<ciMethodDataRecord*> _ci_method_data_records;
+
+  // Use pointer because we may need to return inline records
+  // without destroying them.
+  GrowableArray<ciInlineRecord*>*    _ci_inline_records;
+
+  const char* _error_message;
+
+  char* _bufptr;
+  char* _buffer;
+  int   _buffer_length;
+  int   _buffer_pos;
+
+  // "compile" data
+  ciKlass* _iklass;
+  Method*  _imethod;
+  int      _entry_bci;
+  int      _comp_level;
+
+ public:
+  CompileReplay(const char* filename, TRAPS) {
+    _thread = THREAD;
+    _loader = Handle(_thread, SystemDictionary::java_system_loader());
+    _protection_domain = Handle();
+
+    _stream = fopen(filename, "rt");
+    if (_stream == NULL) {
+      fprintf(stderr, "ERROR: Can't open replay file %s\n", filename);
+    }
+
+    _ci_inline_records = NULL;
+    _error_message = NULL;
+
+    _buffer_length = 32;
+    _buffer = NEW_RESOURCE_ARRAY(char, _buffer_length);
+    _bufptr = _buffer;
+    _buffer_pos = 0;
+
+    _imethod = NULL;
+    _iklass  = NULL;
+    _entry_bci  = 0;
+    _comp_level = 0;
+
+    test();
+  }
+
+  ~CompileReplay() {
+    if (_stream != NULL) fclose(_stream);
+  }
+
+  void test() {
+    strcpy(_buffer, "1 2 foo 4 bar 0x9 \"this is it\"");
+    _bufptr = _buffer;
+    assert(parse_int("test") == 1, "what");
+    assert(parse_int("test") == 2, "what");
+    assert(strcmp(parse_string(), "foo") == 0, "what");
+    assert(parse_int("test") == 4, "what");
+    assert(strcmp(parse_string(), "bar") == 0, "what");
+    assert(parse_intptr_t("test") == 9, "what");
+    assert(strcmp(parse_quoted_string(), "this is it") == 0, "what");
+  }
+
+  bool had_error() {
+    return _error_message != NULL || _thread->has_pending_exception();
+  }
+
+  bool can_replay() {
+    return !(_stream == NULL || had_error());
+  }
+
+  void report_error(const char* msg) {
+    _error_message = msg;
+    // Restore the _buffer contents for error reporting
+    for (int i = 0; i < _buffer_pos; i++) {
+      if (_buffer[i] == '\0') _buffer[i] = ' ';
+    }
+  }
+
+  int parse_int(const char* label) {
+    if (had_error()) {
+      return 0;
+    }
+
+    int v = 0;
+    int read;
+    if (sscanf(_bufptr, "%i%n", &v, &read) != 1) {
+      report_error(label);
+    } else {
+      _bufptr += read;
+    }
+    return v;
+  }
+
+  intptr_t parse_intptr_t(const char* label) {
+    if (had_error()) {
+      return 0;
+    }
+
+    intptr_t v = 0;
+    int read;
+    if (sscanf(_bufptr, INTPTR_FORMAT "%n", &v, &read) != 1) {
+      report_error(label);
+    } else {
+      _bufptr += read;
+    }
+    return v;
+  }
+
+  void skip_ws() {
+    // Skip any leading whitespace
+    while (*_bufptr == ' ' || *_bufptr == '\t') {
+      _bufptr++;
+    }
+  }
+
+
+  char* scan_and_terminate(char delim) {
+    char* str = _bufptr;
+    while (*_bufptr != delim && *_bufptr != '\0') {
+      _bufptr++;
+    }
+    if (*_bufptr != '\0') {
+      *_bufptr++ = '\0';
+    }
+    if (_bufptr == str) {
+      // nothing here
+      return NULL;
+    }
+    return str;
+  }
+
+  char* parse_string() {
+    if (had_error()) return NULL;
+
+    skip_ws();
+    return scan_and_terminate(' ');
+  }
+
+  char* parse_quoted_string() {
+    if (had_error()) return NULL;
+
+    skip_ws();
+
+    if (*_bufptr == '"') {
+      _bufptr++;
+      return scan_and_terminate('"');
+    } else {
+      return scan_and_terminate(' ');
+    }
+  }
+
+  const char* parse_escaped_string() {
+    char* result = parse_quoted_string();
+    if (result != NULL) {
+      unescape_string(result);
+    }
+    return result;
+  }
+
+  // Look for the tag 'tag' followed by an
+  bool parse_tag_and_count(const char* tag, int& length) {
+    const char* t = parse_string();
+    if (t == NULL) {
+      return false;
+    }
+
+    if (strcmp(tag, t) != 0) {
+      report_error(tag);
+      return false;
+    }
+    length = parse_int("parse_tag_and_count");
+    return !had_error();
+  }
+
+  // Parse a sequence of raw data encoded as bytes and return the
+  // resulting data.
+  char* parse_data(const char* tag, int& length) {
+    if (!parse_tag_and_count(tag, length)) {
+      return NULL;
+    }
+
+    char * result = NEW_RESOURCE_ARRAY(char, length);
+    for (int i = 0; i < length; i++) {
+      int val = parse_int("data");
+      result[i] = val;
+    }
+    return result;
+  }
+
+  // Parse a standard chunk of data emitted as:
+  //   'tag' <length> # # ...
+  // Where each # is an intptr_t item
+  intptr_t* parse_intptr_data(const char* tag, int& length) {
+    if (!parse_tag_and_count(tag, length)) {
+      return NULL;
+    }
+
+    intptr_t* result = NEW_RESOURCE_ARRAY(intptr_t, length);
+    for (int i = 0; i < length; i++) {
+      skip_ws();
+      intptr_t val = parse_intptr_t("data");
+      result[i] = val;
+    }
+    return result;
+  }
+
+  // Parse a possibly quoted version of a symbol into a symbolOop
+  Symbol* parse_symbol(TRAPS) {
+    const char* str = parse_escaped_string();
+    if (str != NULL) {
+      Symbol* sym = SymbolTable::lookup(str, (int)strlen(str), CHECK_NULL);
+      return sym;
+    }
+    return NULL;
+  }
+
+  // Parse a valid klass name and look it up
+  Klass* parse_klass(TRAPS) {
+    const char* str = parse_escaped_string();
+    Symbol* klass_name = SymbolTable::lookup(str, (int)strlen(str), CHECK_NULL);
+    if (klass_name != NULL) {
+      Klass* k = NULL;
+      if (_iklass != NULL) {
+        k = (Klass*)_iklass->find_klass(ciSymbol::make(klass_name->as_C_string()))->constant_encoding();
+      } else {
+        k = SystemDictionary::resolve_or_fail(klass_name, _loader, _protection_domain, true, THREAD);
+      }
+      if (HAS_PENDING_EXCEPTION) {
+        oop throwable = PENDING_EXCEPTION;
+        java_lang_Throwable::print(throwable, tty);
+        tty->cr();
+        report_error(str);
+        if (ReplayIgnoreInitErrors) {
+          CLEAR_PENDING_EXCEPTION;
+          _error_message = NULL;
+        }
+        return NULL;
+      }
+      return k;
+    }
+    return NULL;
+  }
+
+  // Lookup a klass
+  Klass* resolve_klass(const char* klass, TRAPS) {
+    Symbol* klass_name = SymbolTable::lookup(klass, (int)strlen(klass), CHECK_NULL);
+    return SystemDictionary::resolve_or_fail(klass_name, _loader, _protection_domain, true, THREAD);
+  }
+
+  // Parse the standard tuple of <klass> <name> <signature>
+  Method* parse_method(TRAPS) {
+    InstanceKlass* k = (InstanceKlass*)parse_klass(CHECK_NULL);
+    if (k == NULL) {
+      report_error("Can't find holder klass");
+      return NULL;
+    }
+    Symbol* method_name = parse_symbol(CHECK_NULL);
+    Symbol* method_signature = parse_symbol(CHECK_NULL);
+    Method* m = k->find_method(method_name, method_signature);
+    if (m == NULL) {
+      report_error("Can't find method");
+    }
+    return m;
+  }
+
+  int get_line(int c) {
+    while(c != EOF) {
+      if (_buffer_pos + 1 >= _buffer_length) {
+        int new_length = _buffer_length * 2;
+        // Next call will throw error in case of OOM.
+        _buffer = REALLOC_RESOURCE_ARRAY(char, _buffer, _buffer_length, new_length);
+        _buffer_length = new_length;
+      }
+      if (c == '\n') {
+        c = getc(_stream); // get next char
+        break;
+      } else if (c == '\r') {
+        // skip LF
+      } else {
+        _buffer[_buffer_pos++] = c;
+      }
+      c = getc(_stream);
+    }
+    // null terminate it, reset the pointer
+    _buffer[_buffer_pos] = '\0'; // NL or EOF
+    _buffer_pos = 0;
+    _bufptr = _buffer;
+    return c;
+  }
+
+  // Process each line of the replay file executing each command until
+  // the file ends.
+  void process(TRAPS) {
+    int line_no = 1;
+    int c = getc(_stream);
+    while(c != EOF) {
+      c = get_line(c);
+      process_command(THREAD);
+      if (had_error()) {
+        tty->print_cr("Error while parsing line %d: %s\n", line_no, _error_message);
+        if (ReplayIgnoreInitErrors) {
+          CLEAR_PENDING_EXCEPTION;
+          _error_message = NULL;
+        } else {
+          return;
+        }
+      }
+      line_no++;
+    }
+  }
+
+  void process_command(TRAPS) {
+    char* cmd = parse_string();
+    if (cmd == NULL) {
+      return;
+    }
+    if (strcmp("#", cmd) == 0) {
+      // ignore
+    } else if (strcmp("compile", cmd) == 0) {
+      process_compile(CHECK);
+    } else if (strcmp("ciMethod", cmd) == 0) {
+      process_ciMethod(CHECK);
+    } else if (strcmp("ciMethodData", cmd) == 0) {
+      process_ciMethodData(CHECK);
+    } else if (strcmp("staticfield", cmd) == 0) {
+      process_staticfield(CHECK);
+    } else if (strcmp("ciInstanceKlass", cmd) == 0) {
+      process_ciInstanceKlass(CHECK);
+    } else if (strcmp("instanceKlass", cmd) == 0) {
+      process_instanceKlass(CHECK);
+#if INCLUDE_JVMTI
+    } else if (strcmp("JvmtiExport", cmd) == 0) {
+      process_JvmtiExport(CHECK);
+#endif // INCLUDE_JVMTI
+    } else {
+      report_error("unknown command");
+    }
+  }
+
+  // validation of comp_level
+  bool is_valid_comp_level(int comp_level) {
+    const int msg_len = 256;
+    char* msg = NULL;
+    if (!is_compile(comp_level)) {
+      msg = NEW_RESOURCE_ARRAY(char, msg_len);
+      jio_snprintf(msg, msg_len, "%d isn't compilation level", comp_level);
+    } else if (!TieredCompilation && (comp_level != CompLevel_highest_tier)) {
+      msg = NEW_RESOURCE_ARRAY(char, msg_len);
+      switch (comp_level) {
+        case CompLevel_simple:
+          jio_snprintf(msg, msg_len, "compilation level %d requires Client VM or TieredCompilation", comp_level);
+          break;
+        case CompLevel_full_optimization:
+          jio_snprintf(msg, msg_len, "compilation level %d requires Server VM", comp_level);
+          break;
+        default:
+          jio_snprintf(msg, msg_len, "compilation level %d requires TieredCompilation", comp_level);
+      }
+    }
+    if (msg != NULL) {
+      report_error(msg);
+      return false;
+    }
+    return true;
+  }
+
+  // compile <klass> <name> <signature> <entry_bci> <comp_level> inline <count> <depth> <bci> <klass> <name> <signature> ...
+  void* process_inline(ciMethod* imethod, Method* m, int entry_bci, int comp_level, TRAPS) {
+    _imethod    = m;
+    _iklass     = imethod->holder();
+    _entry_bci  = entry_bci;
+    _comp_level = comp_level;
+    int line_no = 1;
+    int c = getc(_stream);
+    while(c != EOF) {
+      c = get_line(c);
+      // Expecting only lines with "compile" command in inline replay file.
+      char* cmd = parse_string();
+      if (cmd == NULL || strcmp("compile", cmd) != 0) {
+        return NULL;
+      }
+      process_compile(CHECK_NULL);
+      if (had_error()) {
+        tty->print_cr("Error while parsing line %d: %s\n", line_no, _error_message);
+        tty->print_cr("%s", _buffer);
+        return NULL;
+      }
+      if (_ci_inline_records != NULL && _ci_inline_records->length() > 0) {
+        // Found inlining record for the requested method.
+        return _ci_inline_records;
+      }
+      line_no++;
+    }
+    return NULL;
+  }
+
+  // compile <klass> <name> <signature> <entry_bci> <comp_level> inline <count> <depth> <bci> <klass> <name> <signature> ...
+  void process_compile(TRAPS) {
+    Method* method = parse_method(CHECK);
+    if (had_error()) return;
+    int entry_bci = parse_int("entry_bci");
+    const char* comp_level_label = "comp_level";
+    int comp_level = parse_int(comp_level_label);
+    // old version w/o comp_level
+    if (had_error() && (error_message() == comp_level_label)) {
+      // use highest available tier
+      comp_level = TieredCompilation ? TieredStopAtLevel : CompLevel_highest_tier;
+    }
+    if (!is_valid_comp_level(comp_level)) {
+      return;
+    }
+    if (_imethod != NULL) {
+      // Replay Inlining
+      if (entry_bci != _entry_bci || comp_level != _comp_level) {
+        return;
+      }
+      const char* iklass_name  = _imethod->method_holder()->name()->as_utf8();
+      const char* imethod_name = _imethod->name()->as_utf8();
+      const char* isignature   = _imethod->signature()->as_utf8();
+      const char* klass_name   = method->method_holder()->name()->as_utf8();
+      const char* method_name  = method->name()->as_utf8();
+      const char* signature    = method->signature()->as_utf8();
+      if (strcmp(iklass_name,  klass_name)  != 0 ||
+          strcmp(imethod_name, method_name) != 0 ||
+          strcmp(isignature,   signature)   != 0) {
+        return;
+      }
+    }
+    int inline_count = 0;
+    if (parse_tag_and_count("inline", inline_count)) {
+      // Record inlining data
+      _ci_inline_records = new GrowableArray<ciInlineRecord*>();
+      for (int i = 0; i < inline_count; i++) {
+        int depth = parse_int("inline_depth");
+        int bci = parse_int("inline_bci");
+        if (had_error()) {
+          break;
+        }
+        Method* inl_method = parse_method(CHECK);
+        if (had_error()) {
+          break;
+        }
+        new_ciInlineRecord(inl_method, bci, depth);
+      }
+    }
+    if (_imethod != NULL) {
+      return; // Replay Inlining
+    }
+    InstanceKlass* ik = method->method_holder();
+    ik->initialize(THREAD);
+    if (HAS_PENDING_EXCEPTION) {
+      oop throwable = PENDING_EXCEPTION;
+      java_lang_Throwable::print(throwable, tty);
+      tty->cr();
+      if (ReplayIgnoreInitErrors) {
+        CLEAR_PENDING_EXCEPTION;
+        ik->set_init_state(InstanceKlass::fully_initialized);
+      } else {
+        return;
+      }
+    }
+    // Make sure the existence of a prior compile doesn't stop this one
+    CompiledMethod* nm = (entry_bci != InvocationEntryBci) ? method->lookup_osr_nmethod_for(entry_bci, comp_level, true) : method->code();
+    if (nm != NULL) {
+      nm->make_not_entrant();
+    }
+    replay_state = this;
+    CompileBroker::compile_method(method, entry_bci, comp_level,
+                                  methodHandle(), 0, CompileTask::Reason_Replay, THREAD);
+    replay_state = NULL;
+    reset();
+  }
+
+  // ciMethod <klass> <name> <signature> <invocation_counter> <backedge_counter> <interpreter_invocation_count> <interpreter_throwout_count> <instructions_size>
+  //
+  //
+  void process_ciMethod(TRAPS) {
+    Method* method = parse_method(CHECK);
+    if (had_error()) return;
+    ciMethodRecord* rec = new_ciMethod(method);
+    rec->_invocation_counter = parse_int("invocation_counter");
+    rec->_backedge_counter = parse_int("backedge_counter");
+    rec->_interpreter_invocation_count = parse_int("interpreter_invocation_count");
+    rec->_interpreter_throwout_count = parse_int("interpreter_throwout_count");
+    rec->_instructions_size = parse_int("instructions_size");
+  }
+
+  // ciMethodData <klass> <name> <signature> <state> <current mileage> orig <length> # # ... data <length> # # ... oops <length> # ... methods <length>
+  void process_ciMethodData(TRAPS) {
+    Method* method = parse_method(CHECK);
+    if (had_error()) return;
+    /* just copied from Method, to build interpret data*/
+
+    // To be properly initialized, some profiling in the MDO needs the
+    // method to be rewritten (number of arguments at a call for
+    // instance)
+    method->method_holder()->link_class(CHECK);
+    // methodOopDesc::build_interpreter_method_data(method, CHECK);
+    {
+      // Grab a lock here to prevent multiple
+      // MethodData*s from being created.
+      MutexLocker ml(MethodData_lock, THREAD);
+      if (method->method_data() == NULL) {
+        ClassLoaderData* loader_data = method->method_holder()->class_loader_data();
+        MethodData* method_data = MethodData::allocate(loader_data, method, CHECK);
+        method->set_method_data(method_data);
+      }
+    }
+
+    // collect and record all the needed information for later
+    ciMethodDataRecord* rec = new_ciMethodData(method);
+    rec->_state = parse_int("state");
+    rec->_current_mileage = parse_int("current_mileage");
+
+    rec->_orig_data = parse_data("orig", rec->_orig_data_length);
+    if (rec->_orig_data == NULL) {
+      return;
+    }
+    rec->_data = parse_intptr_data("data", rec->_data_length);
+    if (rec->_data == NULL) {
+      return;
+    }
+    if (!parse_tag_and_count("oops", rec->_classes_length)) {
+      return;
+    }
+    rec->_classes = NEW_RESOURCE_ARRAY(Klass*, rec->_classes_length);
+    rec->_classes_offsets = NEW_RESOURCE_ARRAY(int, rec->_classes_length);
+    for (int i = 0; i < rec->_classes_length; i++) {
+      int offset = parse_int("offset");
+      if (had_error()) {
+        return;
+      }
+      Klass* k = parse_klass(CHECK);
+      rec->_classes_offsets[i] = offset;
+      rec->_classes[i] = k;
+    }
+
+    if (!parse_tag_and_count("methods", rec->_methods_length)) {
+      return;
+    }
+    rec->_methods = NEW_RESOURCE_ARRAY(Method*, rec->_methods_length);
+    rec->_methods_offsets = NEW_RESOURCE_ARRAY(int, rec->_methods_length);
+    for (int i = 0; i < rec->_methods_length; i++) {
+      int offset = parse_int("offset");
+      if (had_error()) {
+        return;
+      }
+      Method* m = parse_method(CHECK);
+      rec->_methods_offsets[i] = offset;
+      rec->_methods[i] = m;
+    }
+  }
+
+  // instanceKlass <name>
+  //
+  // Loads and initializes the klass 'name'.  This can be used to
+  // create particular class loading environments
+  void process_instanceKlass(TRAPS) {
+    // just load the referenced class
+    Klass* k = parse_klass(CHECK);
+  }
+
+  // ciInstanceKlass <name> <is_linked> <is_initialized> <length> tag # # # ...
+  //
+  // Load the klass 'name' and link or initialize it.  Verify that the
+  // constant pool is the same length as 'length' and make sure the
+  // constant pool tags are in the same state.
+  void process_ciInstanceKlass(TRAPS) {
+    InstanceKlass* k = (InstanceKlass *)parse_klass(CHECK);
+    if (k == NULL) {
+      return;
+    }
+    int is_linked = parse_int("is_linked");
+    int is_initialized = parse_int("is_initialized");
+    int length = parse_int("length");
+    if (is_initialized) {
+      k->initialize(THREAD);
+      if (HAS_PENDING_EXCEPTION) {
+        oop throwable = PENDING_EXCEPTION;
+        java_lang_Throwable::print(throwable, tty);
+        tty->cr();
+        if (ReplayIgnoreInitErrors) {
+          CLEAR_PENDING_EXCEPTION;
+          k->set_init_state(InstanceKlass::fully_initialized);
+        } else {
+          return;
+        }
+      }
+    } else if (is_linked) {
+      k->link_class(CHECK);
+    }
+    ConstantPool* cp = k->constants();
+    if (length != cp->length()) {
+      report_error("constant pool length mismatch: wrong class files?");
+      return;
+    }
+
+    int parsed_two_word = 0;
+    for (int i = 1; i < length; i++) {
+      int tag = parse_int("tag");
+      if (had_error()) {
+        return;
+      }
+      switch (cp->tag_at(i).value()) {
+        case JVM_CONSTANT_UnresolvedClass: {
+          if (tag == JVM_CONSTANT_Class) {
+            tty->print_cr("Resolving klass %s at %d", cp->klass_name_at(i)->as_utf8(), i);
+            Klass* k = cp->klass_at(i, CHECK);
+          }
+          break;
+        }
+        case JVM_CONSTANT_Long:
+        case JVM_CONSTANT_Double:
+          parsed_two_word = i + 1;
+
+        case JVM_CONSTANT_ClassIndex:
+        case JVM_CONSTANT_StringIndex:
+        case JVM_CONSTANT_String:
+        case JVM_CONSTANT_UnresolvedClassInError:
+        case JVM_CONSTANT_Fieldref:
+        case JVM_CONSTANT_Methodref:
+        case JVM_CONSTANT_InterfaceMethodref:
+        case JVM_CONSTANT_NameAndType:
+        case JVM_CONSTANT_Utf8:
+        case JVM_CONSTANT_Integer:
+        case JVM_CONSTANT_Float:
+        case JVM_CONSTANT_MethodHandle:
+        case JVM_CONSTANT_MethodType:
+        case JVM_CONSTANT_InvokeDynamic:
+          if (tag != cp->tag_at(i).value()) {
+            report_error("tag mismatch: wrong class files?");
+            return;
+          }
+          break;
+
+        case JVM_CONSTANT_Class:
+          if (tag == JVM_CONSTANT_Class) {
+          } else if (tag == JVM_CONSTANT_UnresolvedClass) {
+            tty->print_cr("Warning: entry was unresolved in the replay data");
+          } else {
+            report_error("Unexpected tag");
+            return;
+          }
+          break;
+
+        case 0:
+          if (parsed_two_word == i) continue;
+
+        default:
+          fatal("Unexpected tag: %d", cp->tag_at(i).value());
+          break;
+      }
+
+    }
+  }
+
+  // Initialize a class and fill in the value for a static field.
+  // This is useful when the compile was dependent on the value of
+  // static fields but it's impossible to properly rerun the static
+  // initiailizer.
+  void process_staticfield(TRAPS) {
+    InstanceKlass* k = (InstanceKlass *)parse_klass(CHECK);
+
+    if (k == NULL || ReplaySuppressInitializers == 0 ||
+        (ReplaySuppressInitializers == 2 && k->class_loader() == NULL)) {
+      return;
+    }
+
+    assert(k->is_initialized(), "must be");
+
+    const char* field_name = parse_escaped_string();
+    const char* field_signature = parse_string();
+    fieldDescriptor fd;
+    Symbol* name = SymbolTable::lookup(field_name, (int)strlen(field_name), CHECK);
+    Symbol* sig = SymbolTable::lookup(field_signature, (int)strlen(field_signature), CHECK);
+    if (!k->find_local_field(name, sig, &fd) ||
+        !fd.is_static() ||
+        fd.has_initial_value()) {
+      report_error(field_name);
+      return;
+    }
+
+    oop java_mirror = k->java_mirror();
+    if (field_signature[0] == '[') {
+      int length = parse_int("array length");
+      oop value = NULL;
+
+      if (field_signature[1] == '[') {
+        // multi dimensional array
+        ArrayKlass* kelem = (ArrayKlass *)parse_klass(CHECK);
+        if (kelem == NULL) {
+          return;
+        }
+        int rank = 0;
+        while (field_signature[rank] == '[') {
+          rank++;
+        }
+        int* dims = NEW_RESOURCE_ARRAY(int, rank);
+        dims[0] = length;
+        for (int i = 1; i < rank; i++) {
+          dims[i] = 1; // These aren't relevant to the compiler
+        }
+        value = kelem->multi_allocate(rank, dims, CHECK);
+      } else {
+        if (strcmp(field_signature, "[B") == 0) {
+          value = oopFactory::new_byteArray(length, CHECK);
+        } else if (strcmp(field_signature, "[Z") == 0) {
+          value = oopFactory::new_boolArray(length, CHECK);
+        } else if (strcmp(field_signature, "[C") == 0) {
+          value = oopFactory::new_charArray(length, CHECK);
+        } else if (strcmp(field_signature, "[S") == 0) {
+          value = oopFactory::new_shortArray(length, CHECK);
+        } else if (strcmp(field_signature, "[F") == 0) {
+          value = oopFactory::new_singleArray(length, CHECK);
+        } else if (strcmp(field_signature, "[D") == 0) {
+          value = oopFactory::new_doubleArray(length, CHECK);
+        } else if (strcmp(field_signature, "[I") == 0) {
+          value = oopFactory::new_intArray(length, CHECK);
+        } else if (strcmp(field_signature, "[J") == 0) {
+          value = oopFactory::new_longArray(length, CHECK);
+        } else if (field_signature[0] == '[' && field_signature[1] == 'L') {
+          Klass* kelem = resolve_klass(field_signature + 1, CHECK);
+          value = oopFactory::new_objArray(kelem, length, CHECK);
+        } else {
+          report_error("unhandled array staticfield");
+        }
+      }
+      java_mirror->obj_field_put(fd.offset(), value);
+    } else {
+      const char* string_value = parse_escaped_string();
+      if (strcmp(field_signature, "I") == 0) {
+        int value = atoi(string_value);
+        java_mirror->int_field_put(fd.offset(), value);
+      } else if (strcmp(field_signature, "B") == 0) {
+        int value = atoi(string_value);
+        java_mirror->byte_field_put(fd.offset(), value);
+      } else if (strcmp(field_signature, "C") == 0) {
+        int value = atoi(string_value);
+        java_mirror->char_field_put(fd.offset(), value);
+      } else if (strcmp(field_signature, "S") == 0) {
+        int value = atoi(string_value);
+        java_mirror->short_field_put(fd.offset(), value);
+      } else if (strcmp(field_signature, "Z") == 0) {
+        int value = atoi(string_value);
+        java_mirror->bool_field_put(fd.offset(), value);
+      } else if (strcmp(field_signature, "J") == 0) {
+        jlong value;
+        if (sscanf(string_value, JLONG_FORMAT, &value) != 1) {
+          fprintf(stderr, "Error parsing long: %s\n", string_value);
+          return;
+        }
+        java_mirror->long_field_put(fd.offset(), value);
+      } else if (strcmp(field_signature, "F") == 0) {
+        float value = atof(string_value);
+        java_mirror->float_field_put(fd.offset(), value);
+      } else if (strcmp(field_signature, "D") == 0) {
+        double value = atof(string_value);
+        java_mirror->double_field_put(fd.offset(), value);
+      } else if (strcmp(field_signature, "Ljava/lang/String;") == 0) {
+        Handle value = java_lang_String::create_from_str(string_value, CHECK);
+        java_mirror->obj_field_put(fd.offset(), value());
+      } else if (field_signature[0] == 'L') {
+        Klass* k = resolve_klass(string_value, CHECK);
+        oop value = InstanceKlass::cast(k)->allocate_instance(CHECK);
+        java_mirror->obj_field_put(fd.offset(), value);
+      } else {
+        report_error("unhandled staticfield");
+      }
+    }
+  }
+
+#if INCLUDE_JVMTI
+  void process_JvmtiExport(TRAPS) {
+    const char* field = parse_string();
+    bool value = parse_int("JvmtiExport flag") != 0;
+    if (strcmp(field, "can_access_local_variables") == 0) {
+      JvmtiExport::set_can_access_local_variables(value);
+    } else if (strcmp(field, "can_hotswap_or_post_breakpoint") == 0) {
+      JvmtiExport::set_can_hotswap_or_post_breakpoint(value);
+    } else if (strcmp(field, "can_post_on_exceptions") == 0) {
+      JvmtiExport::set_can_post_on_exceptions(value);
+    } else {
+      report_error("Unrecognized JvmtiExport directive");
+    }
+  }
+#endif // INCLUDE_JVMTI
+
+  // Create and initialize a record for a ciMethod
+  ciMethodRecord* new_ciMethod(Method* method) {
+    ciMethodRecord* rec = NEW_RESOURCE_OBJ(ciMethodRecord);
+    rec->_klass_name =  method->method_holder()->name()->as_utf8();
+    rec->_method_name = method->name()->as_utf8();
+    rec->_signature = method->signature()->as_utf8();
+    _ci_method_records.append(rec);
+    return rec;
+  }
+
+  // Lookup data for a ciMethod
+  ciMethodRecord* find_ciMethodRecord(Method* method) {
+    const char* klass_name =  method->method_holder()->name()->as_utf8();
+    const char* method_name = method->name()->as_utf8();
+    const char* signature = method->signature()->as_utf8();
+    for (int i = 0; i < _ci_method_records.length(); i++) {
+      ciMethodRecord* rec = _ci_method_records.at(i);
+      if (strcmp(rec->_klass_name, klass_name) == 0 &&
+          strcmp(rec->_method_name, method_name) == 0 &&
+          strcmp(rec->_signature, signature) == 0) {
+        return rec;
+      }
+    }
+    return NULL;
+  }
+
+  // Create and initialize a record for a ciMethodData
+  ciMethodDataRecord* new_ciMethodData(Method* method) {
+    ciMethodDataRecord* rec = NEW_RESOURCE_OBJ(ciMethodDataRecord);
+    rec->_klass_name =  method->method_holder()->name()->as_utf8();
+    rec->_method_name = method->name()->as_utf8();
+    rec->_signature = method->signature()->as_utf8();
+    _ci_method_data_records.append(rec);
+    return rec;
+  }
+
+  // Lookup data for a ciMethodData
+  ciMethodDataRecord* find_ciMethodDataRecord(Method* method) {
+    const char* klass_name =  method->method_holder()->name()->as_utf8();
+    const char* method_name = method->name()->as_utf8();
+    const char* signature = method->signature()->as_utf8();
+    for (int i = 0; i < _ci_method_data_records.length(); i++) {
+      ciMethodDataRecord* rec = _ci_method_data_records.at(i);
+      if (strcmp(rec->_klass_name, klass_name) == 0 &&
+          strcmp(rec->_method_name, method_name) == 0 &&
+          strcmp(rec->_signature, signature) == 0) {
+        return rec;
+      }
+    }
+    return NULL;
+  }
+
+  // Create and initialize a record for a ciInlineRecord
+  ciInlineRecord* new_ciInlineRecord(Method* method, int bci, int depth) {
+    ciInlineRecord* rec = NEW_RESOURCE_OBJ(ciInlineRecord);
+    rec->_klass_name =  method->method_holder()->name()->as_utf8();
+    rec->_method_name = method->name()->as_utf8();
+    rec->_signature = method->signature()->as_utf8();
+    rec->_inline_bci = bci;
+    rec->_inline_depth = depth;
+    _ci_inline_records->append(rec);
+    return rec;
+  }
+
+  // Lookup inlining data for a ciMethod
+  ciInlineRecord* find_ciInlineRecord(Method* method, int bci, int depth) {
+    if (_ci_inline_records != NULL) {
+      return find_ciInlineRecord(_ci_inline_records, method, bci, depth);
+    }
+    return NULL;
+  }
+
+  static ciInlineRecord* find_ciInlineRecord(GrowableArray<ciInlineRecord*>*  records,
+                                      Method* method, int bci, int depth) {
+    if (records != NULL) {
+      const char* klass_name  = method->method_holder()->name()->as_utf8();
+      const char* method_name = method->name()->as_utf8();
+      const char* signature   = method->signature()->as_utf8();
+      for (int i = 0; i < records->length(); i++) {
+        ciInlineRecord* rec = records->at(i);
+        if ((rec->_inline_bci == bci) &&
+            (rec->_inline_depth == depth) &&
+            (strcmp(rec->_klass_name, klass_name) == 0) &&
+            (strcmp(rec->_method_name, method_name) == 0) &&
+            (strcmp(rec->_signature, signature) == 0)) {
+          return rec;
+        }
+      }
+    }
+    return NULL;
+  }
+
+  const char* error_message() {
+    return _error_message;
+  }
+
+  void reset() {
+    _error_message = NULL;
+    _ci_method_records.clear();
+    _ci_method_data_records.clear();
+  }
+
+  // Take an ascii string contain \u#### escapes and convert it to utf8
+  // in place.
+  static void unescape_string(char* value) {
+    char* from = value;
+    char* to = value;
+    while (*from != '\0') {
+      if (*from != '\\') {
+        *from++ = *to++;
+      } else {
+        switch (from[1]) {
+          case 'u': {
+            from += 2;
+            jchar value=0;
+            for (int i=0; i<4; i++) {
+              char c = *from++;
+              switch (c) {
+                case '0': case '1': case '2': case '3': case '4':
+                case '5': case '6': case '7': case '8': case '9':
+                  value = (value << 4) + c - '0';
+                  break;
+                case 'a': case 'b': case 'c':
+                case 'd': case 'e': case 'f':
+                  value = (value << 4) + 10 + c - 'a';
+                  break;
+                case 'A': case 'B': case 'C':
+                case 'D': case 'E': case 'F':
+                  value = (value << 4) + 10 + c - 'A';
+                  break;
+                default:
+                  ShouldNotReachHere();
+              }
+            }
+            UNICODE::convert_to_utf8(&value, 1, to);
+            to++;
+            break;
+          }
+          case 't': *to++ = '\t'; from += 2; break;
+          case 'n': *to++ = '\n'; from += 2; break;
+          case 'r': *to++ = '\r'; from += 2; break;
+          case 'f': *to++ = '\f'; from += 2; break;
+          default:
+            ShouldNotReachHere();
+        }
+      }
+    }
+    *from = *to;
+  }
+};
+
+void ciReplay::replay(TRAPS) {
+  int exit_code = replay_impl(THREAD);
+
+  Threads::destroy_vm();
+
+  vm_exit(exit_code);
+}
+
+void* ciReplay::load_inline_data(ciMethod* method, int entry_bci, int comp_level) {
+  if (FLAG_IS_DEFAULT(InlineDataFile)) {
+    tty->print_cr("ERROR: no inline replay data file specified (use -XX:InlineDataFile=inline_pid12345.txt).");
+    return NULL;
+  }
+
+  VM_ENTRY_MARK;
+  // Load and parse the replay data
+  CompileReplay rp(InlineDataFile, THREAD);
+  if (!rp.can_replay()) {
+    tty->print_cr("ciReplay: !rp.can_replay()");
+    return NULL;
+  }
+  void* data = rp.process_inline(method, method->get_Method(), entry_bci, comp_level, THREAD);
+  if (HAS_PENDING_EXCEPTION) {
+    Handle throwable(THREAD, PENDING_EXCEPTION);
+    CLEAR_PENDING_EXCEPTION;
+    java_lang_Throwable::print_stack_trace(throwable, tty);
+    tty->cr();
+    return NULL;
+  }
+
+  if (rp.had_error()) {
+    tty->print_cr("ciReplay: Failed on %s", rp.error_message());
+    return NULL;
+  }
+  return data;
+}
+
+int ciReplay::replay_impl(TRAPS) {
+  HandleMark hm;
+  ResourceMark rm;
+
+  if (ReplaySuppressInitializers > 2) {
+    // ReplaySuppressInitializers > 2 means that we want to allow
+    // normal VM bootstrap but once we get into the replay itself
+    // don't allow any intializers to be run.
+    ReplaySuppressInitializers = 1;
+  }
+
+  if (FLAG_IS_DEFAULT(ReplayDataFile)) {
+    tty->print_cr("ERROR: no compiler replay data file specified (use -XX:ReplayDataFile=replay_pid12345.txt).");
+    return 1;
+  }
+
+  // Load and parse the replay data
+  CompileReplay rp(ReplayDataFile, THREAD);
+  int exit_code = 0;
+  if (rp.can_replay()) {
+    rp.process(THREAD);
+  } else {
+    exit_code = 1;
+    return exit_code;
+  }
+
+  if (HAS_PENDING_EXCEPTION) {
+    Handle throwable(THREAD, PENDING_EXCEPTION);
+    CLEAR_PENDING_EXCEPTION;
+    java_lang_Throwable::print_stack_trace(throwable, tty);
+    tty->cr();
+    exit_code = 2;
+  }
+
+  if (rp.had_error()) {
+    tty->print_cr("Failed on %s", rp.error_message());
+    exit_code = 1;
+  }
+  return exit_code;
+}
+
+void ciReplay::initialize(ciMethodData* m) {
+  if (replay_state == NULL) {
+    return;
+  }
+
+  ASSERT_IN_VM;
+  ResourceMark rm;
+
+  Method* method = m->get_MethodData()->method();
+  ciMethodDataRecord* rec = replay_state->find_ciMethodDataRecord(method);
+  if (rec == NULL) {
+    // This indicates some mismatch with the original environment and
+    // the replay environment though it's not always enough to
+    // interfere with reproducing a bug
+    tty->print_cr("Warning: requesting ciMethodData record for method with no data: ");
+    method->print_name(tty);
+    tty->cr();
+  } else {
+    m->_state = rec->_state;
+    m->_current_mileage = rec->_current_mileage;
+    if (rec->_data_length != 0) {
+      assert(m->_data_size + m->_extra_data_size == rec->_data_length * (int)sizeof(rec->_data[0]) ||
+             m->_data_size == rec->_data_length * (int)sizeof(rec->_data[0]), "must agree");
+
+      // Write the correct ciObjects back into the profile data
+      ciEnv* env = ciEnv::current();
+      for (int i = 0; i < rec->_classes_length; i++) {
+        Klass *k = rec->_classes[i];
+        // In case this class pointer is is tagged, preserve the tag bits
+        intptr_t status = 0;
+        if (k != NULL) {
+          status = ciTypeEntries::with_status(env->get_metadata(k)->as_klass(), rec->_data[rec->_classes_offsets[i]]);
+        }
+        rec->_data[rec->_classes_offsets[i]] = status;
+      }
+      for (int i = 0; i < rec->_methods_length; i++) {
+        Method *m = rec->_methods[i];
+        *(ciMetadata**)(rec->_data + rec->_methods_offsets[i]) =
+          env->get_metadata(m);
+      }
+      // Copy the updated profile data into place as intptr_ts
+#ifdef _LP64
+      Copy::conjoint_jlongs_atomic((jlong *)rec->_data, (jlong *)m->_data, rec->_data_length);
+#else
+      Copy::conjoint_jints_atomic((jint *)rec->_data, (jint *)m->_data, rec->_data_length);
+#endif
+    }
+
+    // copy in the original header
+    Copy::conjoint_jbytes(rec->_orig_data, (char*)&m->_orig, rec->_orig_data_length);
+  }
+}
+
+
+bool ciReplay::should_not_inline(ciMethod* method) {
+  if (replay_state == NULL) {
+    return false;
+  }
+  VM_ENTRY_MARK;
+  // ciMethod without a record shouldn't be inlined.
+  return replay_state->find_ciMethodRecord(method->get_Method()) == NULL;
+}
+
+bool ciReplay::should_inline(void* data, ciMethod* method, int bci, int inline_depth) {
+  if (data != NULL) {
+    GrowableArray<ciInlineRecord*>*  records = (GrowableArray<ciInlineRecord*>*)data;
+    VM_ENTRY_MARK;
+    // Inline record are ordered by bci and depth.
+    return CompileReplay::find_ciInlineRecord(records, method->get_Method(), bci, inline_depth) != NULL;
+  } else if (replay_state != NULL) {
+    VM_ENTRY_MARK;
+    // Inline record are ordered by bci and depth.
+    return replay_state->find_ciInlineRecord(method->get_Method(), bci, inline_depth) != NULL;
+  }
+  return false;
+}
+
+bool ciReplay::should_not_inline(void* data, ciMethod* method, int bci, int inline_depth) {
+  if (data != NULL) {
+    GrowableArray<ciInlineRecord*>*  records = (GrowableArray<ciInlineRecord*>*)data;
+    VM_ENTRY_MARK;
+    // Inline record are ordered by bci and depth.
+    return CompileReplay::find_ciInlineRecord(records, method->get_Method(), bci, inline_depth) == NULL;
+  } else if (replay_state != NULL) {
+    VM_ENTRY_MARK;
+    // Inline record are ordered by bci and depth.
+    return replay_state->find_ciInlineRecord(method->get_Method(), bci, inline_depth) == NULL;
+  }
+  return false;
+}
+
+void ciReplay::initialize(ciMethod* m) {
+  if (replay_state == NULL) {
+    return;
+  }
+
+  ASSERT_IN_VM;
+  ResourceMark rm;
+
+  Method* method = m->get_Method();
+  ciMethodRecord* rec = replay_state->find_ciMethodRecord(method);
+  if (rec == NULL) {
+    // This indicates some mismatch with the original environment and
+    // the replay environment though it's not always enough to
+    // interfere with reproducing a bug
+    tty->print_cr("Warning: requesting ciMethod record for method with no data: ");
+    method->print_name(tty);
+    tty->cr();
+  } else {
+    EXCEPTION_CONTEXT;
+    // m->_instructions_size = rec->_instructions_size;
+    m->_instructions_size = -1;
+    m->_interpreter_invocation_count = rec->_interpreter_invocation_count;
+    m->_interpreter_throwout_count = rec->_interpreter_throwout_count;
+    MethodCounters* mcs = method->get_method_counters(CHECK_AND_CLEAR);
+    guarantee(mcs != NULL, "method counters allocation failed");
+    mcs->invocation_counter()->_counter = rec->_invocation_counter;
+    mcs->backedge_counter()->_counter = rec->_backedge_counter;
+  }
+}
+
+bool ciReplay::is_loaded(Method* method) {
+  if (replay_state == NULL) {
+    return true;
+  }
+
+  ASSERT_IN_VM;
+  ResourceMark rm;
+
+  ciMethodRecord* rec = replay_state->find_ciMethodRecord(method);
+  return rec != NULL;
+}
+#endif // PRODUCT