A64: Synchronize with r15922.

src/flag-definitions.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 172 matching lines @@
 DEFINE_implication(harmony, harmony_generators)
 DEFINE_implication(harmony, harmony_iteration)
 DEFINE_implication(harmony, harmony_numeric_literals)
 DEFINE_implication(harmony_modules, harmony_scoping)
 DEFINE_implication(harmony_observation, harmony_collections)
 // TODO[dslomov] add harmony => harmony_typed_arrays
 
 // Flags for experimental implementation features.
 DEFINE_bool(packed_arrays, true, "optimizes arrays that have no holes")
 DEFINE_bool(smi_only_arrays, true, "tracks arrays with only smi values")
-DEFINE_bool(compiled_transitions, true, "use optimizing compiler to "
-            "generate array elements transition stubs")
 DEFINE_bool(compiled_keyed_stores, true, "use optimizing compiler to "
             "generate keyed store stubs")
 DEFINE_bool(clever_optimizations,
             true,
             "Optimize object size, Array shift, DOM strings and string +")
 DEFINE_bool(pretenuring, true, "allocate objects in old space")
 // TODO(hpayer): We will remove this flag as soon as we have pretenuring
 // support for specific allocation sites.
 DEFINE_bool(pretenuring_call_new, false, "pretenure call new")
 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")
 DEFINE_bool(track_computed_fields, true, "track computed boilerplate fields")
 DEFINE_implication(track_double_fields, track_fields)
 DEFINE_implication(track_heap_object_fields, track_fields)
 DEFINE_implication(track_computed_fields, track_fields)
+DEFINE_bool(smi_binop, true, "support smi representation in binary operations")
 
 // Flags for data representation optimizations
 DEFINE_bool(unbox_double_arrays, true, "automatically unbox arrays of doubles")
 DEFINE_bool(string_slices, true, "use string slices")
 
 // Flags for Crankshaft.
 DEFINE_bool(crankshaft, true, "use crankshaft")
 DEFINE_string(hydrogen_filter, "*", "optimization filter")
 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, 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,
            "maximum source size in bytes considered for a single inlining")
 DEFINE_int(max_inlined_nodes, 196,
            "maximum number of AST nodes considered for a single inlining")
 DEFINE_int(max_inlined_nodes_cumulative, 400,
            "maximum cumulative number of AST nodes considered for inlining")
 DEFINE_bool(loop_invariant_code_motion, true, "loop invariant code motion")
 DEFINE_bool(fast_math, true, "faster (but maybe less accurate) math functions")
 DEFINE_bool(collect_megamorphic_maps_from_stub_cache,
             true,
             "crankshaft harvests type feedback from stub cache")
 DEFINE_bool(hydrogen_stats, false, "print statistics for hydrogen")
 DEFINE_bool(trace_hydrogen, false, "trace generated hydrogen to file")
-DEFINE_string(trace_phase, "Z", "trace generated IR for specified phases")
+DEFINE_bool(trace_hydrogen_stubs, false, "trace generated hydrogen for stubs")
+DEFINE_string(trace_hydrogen_file, NULL, "trace hydrogen to given file name")
+DEFINE_string(trace_phase, "HLZ", "trace generated IR for specified phases")
 DEFINE_bool(trace_inlining, false, "trace inlining decisions")
 DEFINE_bool(trace_alloc, false, "trace register allocator")
 DEFINE_bool(trace_all_uses, false, "trace all use positions")
 DEFINE_bool(trace_range, false, "trace range analysis")
 DEFINE_bool(trace_gvn, false, "trace global value numbering")
 DEFINE_bool(trace_representation, false, "trace representation types")
 DEFINE_bool(trace_escape_analysis, false, "trace hydrogen escape analysis")
 DEFINE_bool(trace_allocation_folding, false, "trace allocation folding")
 DEFINE_bool(trace_track_allocation_sites, false,
             "trace the tracking of allocation sites")
 DEFINE_bool(trace_migration, false, "trace object migration")
 DEFINE_bool(trace_generalization, false, "trace map generalization")
 DEFINE_bool(stress_pointer_maps, false, "pointer map for every instruction")
 DEFINE_bool(stress_environments, false, "environment for every instruction")
 DEFINE_int(deopt_every_n_times,
            0,
            "deoptimize every n times a deopt point is passed")
 DEFINE_int(deopt_every_n_garbage_collections,
            0,
            "deoptimize every n garbage collections")
 DEFINE_bool(print_deopt_stress, false, "print number of possible deopt points")
 DEFINE_bool(trap_on_deopt, false, "put a break point before deoptimizing")
 DEFINE_bool(deoptimize_uncommon_cases, true, "deoptimize uncommon cases")
 DEFINE_bool(polymorphic_inlining, true, "polymorphic inlining")
 DEFINE_bool(use_osr, true, "use on-stack replacement")
 DEFINE_bool(idefs, false, "use informative definitions")
 DEFINE_bool(array_bounds_checks_elimination, true,
             "perform array bounds checks elimination")
+DEFINE_bool(array_bounds_checks_hoisting, false,
+            "perform array bounds checks hoisting")
 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(dead_code_elimination, true, "use dead code elimination")
 DEFINE_bool(fold_constants, true, "use constant folding")
 DEFINE_bool(trace_dead_code_elimination, false, "trace dead code elimination")
 DEFINE_bool(unreachable_code_elimination, false,
             "eliminate unreachable code (hidden behind soft deopts)")
 DEFINE_bool(track_allocation_sites, true,
@@ skipping 22 matching lines @@
 DEFINE_bool(parallel_recompilation, true,
             "optimizing hot functions asynchronously on a separate thread")
 DEFINE_bool(trace_parallel_recompilation, false, "track parallel recompilation")
 DEFINE_int(parallel_recompilation_queue_length, 8,
            "the length of the parallel compilation queue")
 DEFINE_int(parallel_recompilation_delay, 0,
            "artificial compilation delay in ms")
 DEFINE_bool(omit_prototype_checks_for_leaf_maps, true,
             "do not emit prototype checks if all prototypes have leaf maps, "
             "deoptimize the optimized code if the layout of the maps changes.")
+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.")
 
 // Experimental profiler changes.
 DEFINE_bool(experimental_profiler, true, "enable all profiler experiments")
 DEFINE_bool(watch_ic_patching, false, "profiler considers IC stability")
 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")
@@ skipping 425 matching lines @@
 DEFINE_bool(log_code, false,
             "Log code events to the log file without profiling.")
 DEFINE_bool(log_gc, false,
             "Log heap samples on garbage collection for the hp2ps tool.")
 DEFINE_bool(log_handles, false, "Log global handle events.")
 DEFINE_bool(log_snapshot_positions, false,
             "log positions of (de)serialized objects in the snapshot.")
 DEFINE_bool(log_suspect, false, "Log suspect operations.")
 DEFINE_bool(prof, false,
             "Log statistical profiling information (implies --log-code).")
-DEFINE_bool(prof_auto, true,
-            "Used with --prof, starts profiling automatically")
 DEFINE_bool(prof_lazy, false,
             "Used with --prof, only does sampling and logging"
-            " when profiler is active (implies --noprof_auto).")
+            " when profiler is active.")
 DEFINE_bool(prof_browser_mode, true,
             "Used with --prof, turns on browser-compatible mode for profiling.")
 DEFINE_bool(log_regexp, false, "Log regular expression execution.")
 DEFINE_string(logfile, "v8.log", "Specify the name of the log file.")
 DEFINE_bool(ll_prof, false, "Enable low-level linux profiler.")
 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.")
 DEFINE_bool(log_timer_events, false,
             "Time events including external callbacks.")
@@ skipping 58 matching lines @@
 #undef DEFINE_bool
 #undef DEFINE_int
 #undef DEFINE_string
 #undef DEFINE_implication
 
 #undef FLAG_MODE_DECLARE
 #undef FLAG_MODE_DEFINE
 #undef FLAG_MODE_DEFINE_DEFAULTS
 #undef FLAG_MODE_META
 #undef FLAG_MODE_DEFINE_IMPLICATIONS