[crankshaft] Disable escape analysis of nested objects.

src/flag-definitions.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // This file defines all of the flags.  It is separated into different section,
 // for Debug, Release, Logging and Profiling, etc.  To add a new flag, find the
 // correct section, and use one of the DEFINE_ macros, without a trailing ';'.
 //
 // This include does not have a guard, because it is a template-style include,
 // which can be included multiple times in different modes.  It expects to have
@@ skipping 381 matching lines @@
 DEFINE_INT(stress_runs, 0, "number of stress runs")
 DEFINE_BOOL(lookup_sample_by_shared, true,
             "when picking a function to optimize, watch for shared function "
             "info, not JSFunction itself")
 DEFINE_BOOL(flush_optimized_code_cache, false,
             "flushes the cache of optimized code for closures on every GC")
 DEFINE_BOOL(inline_construct, true, "inline constructor calls")
 DEFINE_BOOL(inline_arguments, true, "inline functions with arguments object")
 DEFINE_BOOL(inline_accessors, true, "inline JavaScript accessors")
 DEFINE_BOOL(inline_into_try, true, "inline into try blocks")
-DEFINE_INT(escape_analysis_iterations, 2,
+DEFINE_INT(escape_analysis_iterations, 1,
            "maximum number of escape analysis fix-point iterations")
 
 DEFINE_BOOL(concurrent_recompilation, true,
             "optimizing hot functions asynchronously on a separate thread")
 DEFINE_BOOL(trace_concurrent_recompilation, false,
             "track concurrent recompilation")
 DEFINE_INT(concurrent_recompilation_queue_length, 8,
            "the length of the concurrent compilation queue")
 DEFINE_INT(concurrent_recompilation_delay, 0,
            "artificial compilation delay in ms")
@@ skipping 824 matching lines @@
 #undef DEFINE_ALIAS_FLOAT
 #undef DEFINE_ALIAS_ARGS
 
 #undef FLAG_MODE_DECLARE
 #undef FLAG_MODE_DEFINE
 #undef FLAG_MODE_DEFINE_DEFAULTS
 #undef FLAG_MODE_META
 #undef FLAG_MODE_DEFINE_IMPLICATIONS
 
 #undef COMMA