Disible the toplevel compiler for code containing for loops.

Review URL: http://codereview.chromium.org/492003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3447 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/compiler.cc

@@ -738,21 +738,7 @@ void CodeGenSelector::VisitWhileStatement(WhileStatement* stmt) {
 
 
 void CodeGenSelector::VisitForStatement(ForStatement* stmt) {
-  // We do not handle loops with breaks or continue statements in their
-  // body.  We will bailout when we hit those statements in the body.
-  if (stmt->init() != NULL) {
-    Visit(stmt->init());
-    CHECK_BAILOUT;
-  }
-  if (stmt->cond() != NULL) {
-    ProcessExpression(stmt->cond(), Expression::kTest);
-    CHECK_BAILOUT;
-  }
-  Visit(stmt->body());
-  if (stmt->next() != NULL) {
-    CHECK_BAILOUT;
-    Visit(stmt->next());
-  }
+  BAILOUT("ForStatement");
 }
 
 

src/fast-codegen.cc

@@ -375,48 +375,7 @@ void FastCodeGenerator::VisitWhileStatement(WhileStatement* stmt) {
 
 
 void FastCodeGenerator::VisitForStatement(ForStatement* stmt) {
-  Comment cmnt(masm_, "[ ForStatement");
-  Label test, body, exit, stack_limit_hit, stack_check_success;
-  if (stmt->init() != NULL) Visit(stmt->init());
-
-  increment_loop_depth();
-  // Emit the test at the bottom of the loop (even if empty).
-  __ jmp(&test);
-  __ bind(&body);
-  Visit(stmt->body());
-
-  // Check stack before looping.
-  __ StackLimitCheck(&stack_limit_hit);
-  __ bind(&stack_check_success);
-
-  if (stmt->next() != NULL) Visit(stmt->next());
-
-  __ bind(&test);
-
-  if (stmt->cond() == NULL) {
-    // For an empty test jump to the top of the loop.
-    __ jmp(&body);
-  } else {
-    // We are not in an expression context because we have been compiling
-    // statements.  Set up a test expression context for the condition.
-    ASSERT_EQ(NULL, true_label_);
-    ASSERT_EQ(NULL, false_label_);
-
-    true_label_ = &body;
-    false_label_ = &exit;
-    ASSERT(stmt->cond()->context() == Expression::kTest);
-    Visit(stmt->cond());
-    true_label_ = NULL;
-    false_label_ = NULL;
-  }
-
-  __ bind(&stack_limit_hit);
-  StackCheckStub stack_stub;
-  __ CallStub(&stack_stub);
-  __ jmp(&stack_check_success);
-
-  __ bind(&exit);
-  decrement_loop_depth();
+  UNREACHABLE();
 }