Merge bleeding_edge 18021:18297

src/flag-definitions.h

Index: src/flag-definitions.h
diff --git a/src/flag-definitions.h b/src/flag-definitions.h
index 9cf895d513332cbae8c977f59e25963ea8f196d6..0ef8b71d90f103f96042b9222e539c67d2d4f163 100644
--- a/src/flag-definitions.h
+++ b/src/flag-definitions.h
@@ -171,6 +171,7 @@ DEFINE_bool(harmony_modules, false,
             "enable harmony modules (implies block scoping)")
 DEFINE_bool(harmony_symbols, false,
             "enable harmony symbols (a.k.a. private names)")
+DEFINE_bool(harmony_promises, false, "enable harmony promises")
 DEFINE_bool(harmony_proxies, false, "enable harmony proxies")
 DEFINE_bool(harmony_collections, false,
             "enable harmony collections (sets, maps, and weak maps)")
@@ -187,6 +188,7 @@ DEFINE_bool(harmony, false, "enable all harmony features (except typeof)")
 DEFINE_implication(harmony, harmony_scoping)
 DEFINE_implication(harmony, harmony_modules)
 DEFINE_implication(harmony, harmony_symbols)
+DEFINE_implication(harmony, harmony_promises)
 DEFINE_implication(harmony, harmony_proxies)
 DEFINE_implication(harmony, harmony_collections)
 DEFINE_implication(harmony, harmony_observation)
@@ -196,6 +198,7 @@ DEFINE_implication(harmony, harmony_numeric_literals)
 DEFINE_implication(harmony, harmony_strings)
 DEFINE_implication(harmony, harmony_arrays)
 DEFINE_implication(harmony, harmony_maths)
+DEFINE_implication(harmony_promises, harmony_collections)
 DEFINE_implication(harmony_modules, harmony_scoping)
 DEFINE_implication(harmony_observation, harmony_collections)
 
@@ -212,6 +215,8 @@ DEFINE_bool(pretenuring, true, "allocate objects in old space")
 DEFINE_bool(pretenuring_call_new, false, "pretenure call new")
 DEFINE_bool(allocation_site_pretenuring, false,
             "pretenure with allocation sites")
+DEFINE_bool(trace_pretenuring, false,
+            "trace pretenuring decisions of HAllocate instructions")
 DEFINE_bool(track_fields, true, "track fields with only smi values")
 DEFINE_bool(track_double_fields, true, "track fields with double values")
 DEFINE_bool(track_heap_object_fields, true, "track fields with heap values")
@@ -237,7 +242,7 @@ DEFINE_bool(use_range, true, "use hydrogen range analysis")
 DEFINE_bool(use_gvn, true, "use hydrogen global value numbering")
 DEFINE_bool(use_canonicalizing, true, "use hydrogen instruction canonicalizing")
 DEFINE_bool(use_inlining, true, "use function inlining")
-DEFINE_bool(use_escape_analysis, true, "use hydrogen escape analysis")
+DEFINE_bool(use_escape_analysis, false, "use hydrogen escape analysis")
 DEFINE_bool(use_allocation_folding, true, "use allocation folding")
 DEFINE_int(max_inlining_levels, 5, "maximum number of inlining levels")
 DEFINE_int(max_inlined_source_size, 600,
@@ -291,7 +296,7 @@ DEFINE_bool(array_index_dehoisting, true,
             "perform array index dehoisting")
 DEFINE_bool(analyze_environment_liveness, true,
             "analyze liveness of environment slots and zap dead values")
-DEFINE_bool(load_elimination, false, "use load elimination")
+DEFINE_bool(load_elimination, true, "use load elimination")
 DEFINE_bool(check_elimination, false, "use check elimination")
 DEFINE_bool(dead_code_elimination, true, "use dead code elimination")
 DEFINE_bool(fold_constants, true, "use constant folding")
@@ -340,21 +345,10 @@ DEFINE_bool(omit_map_checks_for_leaf_maps, true,
             "do not emit check maps for constant values that have a leaf map, "
             "deoptimize the optimized code if the layout of the maps changes.")
 
-DEFINE_bool(new_string_add, false, "enable new string addition")
+DEFINE_bool(new_string_add, true, "enable new string addition")
 
-// Experimental profiler changes.
-DEFINE_bool(experimental_profiler, true, "enable all profiler experiments")
-DEFINE_bool(watch_ic_patching, false, "profiler considers IC stability")
+// Profiler flags.
 DEFINE_int(frame_count, 1, "number of stack frames inspected by the profiler")
-DEFINE_bool(self_optimization, false,
-            "primitive functions trigger their own optimization")
-DEFINE_bool(direct_self_opt, false,
-            "call recompile stub directly when self-optimizing")
-DEFINE_bool(retry_self_opt, false, "re-try self-optimization if it failed")
-DEFINE_bool(interrupt_at_exit, false,
-            "insert an interrupt check at function exit")
-DEFINE_bool(weighted_back_edges, false,
-            "weight back edges by jump distance for interrupt triggering")
            // 0x1700 fits in the immediate field of an ARM instruction.
 DEFINE_int(interrupt_budget, 0x1700,
            "execution budget before interrupt is triggered")
@@ -362,13 +356,6 @@ DEFINE_int(type_info_threshold, 25,
            "percentage of ICs that must have type info to allow optimization")
 DEFINE_int(self_opt_count, 130, "call count before self-optimization")
 
-DEFINE_implication(experimental_profiler, watch_ic_patching)
-DEFINE_implication(experimental_profiler, self_optimization)
-// Not implying direct_self_opt here because it seems to be a bad idea.
-DEFINE_implication(experimental_profiler, retry_self_opt)
-DEFINE_implication(experimental_profiler, interrupt_at_exit)
-DEFINE_implication(experimental_profiler, weighted_back_edges)
-
 DEFINE_bool(trace_opt_verbose, false, "extra verbose compilation tracing")
 DEFINE_implication(trace_opt_verbose, trace_opt)
 
@@ -407,12 +394,16 @@ DEFINE_bool(enable_vldr_imm, false,
 // bootstrapper.cc
 DEFINE_string(expose_natives_as, NULL, "expose natives in global object")
 DEFINE_string(expose_debug_as, NULL, "expose debug in global object")
+#ifdef ADDRESS_SANITIZER
+DEFINE_bool(expose_free_buffer, false, "expose freeBuffer extension")
+#endif
 DEFINE_bool(expose_gc, false, "expose gc extension")
 DEFINE_string(expose_gc_as, NULL,
               "expose gc extension under the specified name")
 DEFINE_implication(expose_gc_as, expose_gc)
 DEFINE_bool(expose_externalize_string, false,
             "expose externalize string extension")
+DEFINE_bool(expose_trigger_failure, false, "expose trigger-failure extension")
 DEFINE_int(stack_trace_limit, 10, "number of stack frames to capture")
 DEFINE_bool(builtins_in_stack_traces, false,
             "show built-in functions in stack traces")
@@ -787,6 +778,10 @@ DEFINE_bool(log_regexp, false, "Log regular expression execution.")
 DEFINE_string(logfile, "v8.log", "Specify the name of the log file.")
 DEFINE_bool(logfile_per_isolate, true, "Separate log files for each isolate.")
 DEFINE_bool(ll_prof, false, "Enable low-level linux profiler.")
+DEFINE_bool(perf_basic_prof, false,
+            "Enable perf linux profiler (basic support).")
+DEFINE_bool(perf_jit_prof, false,
+            "Enable perf linux profiler (experimental annotate support).")
 DEFINE_string(gc_fake_mmap, "/tmp/__v8_gc__",
               "Specify the name of the file for fake gc mmap used in ll_prof")
 DEFINE_bool(log_internal_timer_events, false, "Time internal events.")