Revert accidental r9229 and r9230

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@9231 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

test/mjsunit/tools/codemap.js

@@ -138,20 +138,6 @@ function assertNoEntry(codeMap, addr) {
 })();
 
 
-(function testDeadCodeCleanups() {
-  var codeMap = new CodeMap();
-  codeMap.addCode(0x1500, newCodeEntry(0x200, 'code1'));
-  codeMap.addCode(0x1700, newCodeEntry(0x100, 'code2'));
-  assertEntry(codeMap, 'code1', 0x1500);
-  assertEntry(codeMap, 'code2', 0x1700);
-  codeMap.moveCode(0x1500, 0x1700);  // Deprecate code2.
-  assertEntry(codeMap, 'code1', 0x1700);
-  codeMap.addCode(0x1750, newCodeEntry(0x100, 'code3'));
-  assertNoEntry(codeMap, 0x1700);
-  assertEntry(codeMap, 'code3', 0x1750);
-})();
-
-
 (function testDynamicNamesDuplicates() {
   var codeMap = new CodeMap();
   // Code entries with same names but different addresses.

tools/codemap.js

@@ -79,7 +79,6 @@ CodeMap.PAGE_SIZE =
  * @param {CodeMap.CodeEntry} codeEntry Code entry object.
  */
 CodeMap.prototype.addCode = function(start, codeEntry) {
-  this.removeAllCoveredNodes_(this.dynamics_, start, start + codeEntry.size);
   this.dynamics_.insert(start, codeEntry);
 };
 
@@ -92,9 +91,7 @@ CodeMap.prototype.addCode = function(start, codeEntry) {
  * @param {number} to The destination address.
  */
 CodeMap.prototype.moveCode = function(from, to) {
-  if (from === to) return;
   var removedNode = this.dynamics_.remove(from);
-  this.removeAllCoveredNodes_(this.dynamics_, to, to + removedNode.value.size);
   this.dynamics_.insert(to, removedNode.value);
 };
 
@@ -154,26 +151,6 @@ CodeMap.prototype.isAddressBelongsTo_ = function(addr, node) {
 };
 
 
-/**
- * @private
- */
-CodeMap.prototype.findAllCoveredNodes_ = function(tree, start, end) {
-  var result = [];
-  var addr = end - 1;
-  while (addr >= start) {
-    var node = tree.findGreatestLessThan(addr);
-    if (!node) break;
-    var start2 = node.key, end2 = node.key + node.value.size;
-    if (start2 < end && start < end2) {
-      // Node overlaps with the interval given
-      result.push(node);
-    }
-    addr = node.key - 1;
-  }
-  return result;
-};
-
-
 /**
  * @private
  */
@@ -257,14 +234,6 @@ CodeMap.prototype.getAllLibrariesEntries = function() {
 };
 
 
-CodeMap.prototype.removeAllCoveredNodes_ = function(tree, start, end) {
-  var covered = this.findAllCoveredNodes_(tree, start, end);
-  for (var i = 0, l = covered.length; i < l; ++i) {
-    tree.remove(covered[i].key);
-  }
-};
-
-
 /**
  * Creates a code entry object.
  *

tools/profile.js

@@ -58,7 +58,8 @@ Profile.prototype.skipThisFunction = function(name) {
  */
 Profile.Operation = {
   MOVE: 0,
-  TICK: 1
+  DELETE: 1,
+  TICK: 2
 };
 
 
@@ -162,13 +163,15 @@ Profile.prototype.addFuncCode = function(
     func.name = name;
   }
   var entry = this.codeMap_.findDynamicEntryByStartAddress(start);
-  if (entry && entry.size === size && entry.func === func) {
-    // Entry state has changed.
-    entry.state = state;
-    return entry;
+  if (entry) {
+    if (entry.size === size && entry.func === func) {
+      // Entry state has changed.
+      entry.state = state;
+    }
+  } else {
+    entry = new Profile.DynamicFuncCodeEntry(size, type, func, state);
+    this.codeMap_.addCode(start, entry);
   }
-  entry = new Profile.DynamicFuncCodeEntry(size, type, func, state);
-  this.codeMap_.addCode(start, entry);
   return entry;
 };
 
@@ -188,6 +191,20 @@ Profile.prototype.moveCode = function(from, to) {
 };
 
 
+/**
+ * Reports about deletion of a dynamic code entry.
+ *
+ * @param {number} start Starting address.
+ */
+Profile.prototype.deleteCode = function(start) {
+  try {
+    this.codeMap_.deleteCode(start);
+  } catch (e) {
+    this.handleUnknownCode(Profile.Operation.DELETE, start);
+  }
+};
+
+
 /**
  * Reports about moving of a dynamic code entry.
  *

tools/tickprocessor.js

@@ -77,7 +77,8 @@ function SnapshotLogProcessor() {
           processor: this.processCodeCreation },
       'code-move': { parsers: [parseInt, parseInt],
           processor: this.processCodeMove },
-      'code-delete': null,
+      'code-delete': { parsers: [parseInt],
+          processor: this.processCodeDelete },
       'function-creation': null,
       'function-move': null,
       'function-delete': null,
@@ -92,6 +93,10 @@ function SnapshotLogProcessor() {
         print('Snapshot: Code move event for unknown code: 0x' +
               addr.toString(16));
         break;
+      case op.DELETE:
+        print('Snapshot: Code delete event for unknown code: 0x' +
+              addr.toString(16));
+        break;
     }
   };
 
@@ -118,6 +123,11 @@ SnapshotLogProcessor.prototype.processCodeMove = function(from, to) {
 };
 
 
+SnapshotLogProcessor.prototype.processCodeDelete = function(start) {
+  this.profile_.deleteCode(start);
+};
+
+
 SnapshotLogProcessor.prototype.processSnapshotPosition = function(addr, pos) {
   this.serializedEntries_[pos] = this.profile_.findEntry(addr);
 };
@@ -145,7 +155,8 @@ function TickProcessor(
           processor: this.processCodeCreation },
       'code-move': { parsers: [parseInt, parseInt],
           processor: this.processCodeMove },
-      'code-delete': null,
+      'code-delete': { parsers: [parseInt],
+          processor: this.processCodeDelete },
       'sfi-move': { parsers: [parseInt, parseInt],
           processor: this.processFunctionMove },
       'snapshot-pos': { parsers: [parseInt, parseInt],
@@ -184,6 +195,9 @@ function TickProcessor(
       case op.MOVE:
         print('Code move event for unknown code: 0x' + addr.toString(16));
         break;
+      case op.DELETE:
+        print('Code delete event for unknown code: 0x' + addr.toString(16));
+        break;
       case op.TICK:
         // Only unknown PCs (the first frame) are reported as unaccounted,
         // otherwise tick balance will be corrupted (this behavior is compatible
@@ -304,6 +318,11 @@ TickProcessor.prototype.processCodeMove = function(from, to) {
 };
 
 
+TickProcessor.prototype.processCodeDelete = function(start) {
+  this.profile_.deleteCode(start);
+};
+
+
 TickProcessor.prototype.processFunctionMove = function(from, to) {
   this.profile_.moveFunc(from, to);
 };