Removed dead flags.

src/flag-definitions.h

 // Copyright 2011 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 113 matching lines @@
 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(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_bool(process_arguments_object, true, "try to deal with arguments object")
 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(aggressive_loop_invariant_motion, true,
             "aggressive motion of instructions out of loops")
 DEFINE_bool(use_osr, true, "use on-stack replacement")
 
 DEFINE_bool(trace_osr, false, "trace on-stack replacement")
 DEFINE_int(stress_runs, 0, "number of stress runs")
 DEFINE_bool(optimize_closures, true, "optimize closures")
 
 // assembler-ia32.cc / assembler-arm.cc / assembler-x64.cc
 DEFINE_bool(debug_code, false,
             "generate extra code (assertions) for debugging")
 DEFINE_bool(code_comments, false, "emit comments in code disassembly")
 DEFINE_bool(peephole_optimization, true,
             "perform peephole optimizations in assembly code")
-DEFINE_bool(print_peephole_optimization, false,
-            "print peephole optimizations in assembly code")
 DEFINE_bool(enable_sse2, true,
             "enable use of SSE2 instructions if available")
 DEFINE_bool(enable_sse3, true,
             "enable use of SSE3 instructions if available")
 DEFINE_bool(enable_sse4_1, true,
             "enable use of SSE4.1 instructions if available")
 DEFINE_bool(enable_cmov, true,
             "enable use of CMOV instruction if available")
 DEFINE_bool(enable_rdtsc, true,
             "enable use of RDTSC instruction if available")
@@ skipping 18 matching lines @@
 
 // builtins-ia32.cc
 DEFINE_bool(inline_new, true, "use fast inline allocation")
 
 // checks.cc
 DEFINE_bool(stack_trace_on_abort, true,
             "print a stack trace if an assertion failure occurs")
 
 // codegen-ia32.cc / codegen-arm.cc
 DEFINE_bool(trace, false, "trace function calls")
-DEFINE_bool(defer_negation, true, "defer negation operation")
 DEFINE_bool(mask_constants_with_cookie,
             true,
             "use random jit cookie to mask large constants")
 
 // codegen.cc
 DEFINE_bool(lazy, true, "use lazy compilation")
 DEFINE_bool(trace_opt, false, "trace lazy optimization")
 DEFINE_bool(trace_opt_stats, false, "trace lazy optimization statistics")
 DEFINE_bool(opt, true, "use adaptive optimizations")
 DEFINE_bool(opt_eagerly, false, "be more eager when adaptively optimizing")
 DEFINE_bool(always_opt, false, "always try to optimize functions")
 DEFINE_bool(prepare_always_opt, false, "prepare for turning on always opt")
 DEFINE_bool(debug_info, true, "add debug information to compiled functions")
 DEFINE_bool(deopt, true, "support deoptimization")
 DEFINE_bool(trace_deopt, false, "trace deoptimization")
 
 // compiler.cc
 DEFINE_bool(strict, false, "strict error checking")
 DEFINE_int(min_preparse_length, 1024,
            "minimum length for automatic enable preparsing")
-DEFINE_bool(full_compiler, true, "enable dedicated backend for run-once code")
 DEFINE_bool(always_full_compiler, false,
             "try to use the dedicated run-once backend for all code")
 DEFINE_bool(trace_bailout, false,
             "print reasons for falling back to using the classic V8 backend")
-DEFINE_bool(safe_int32_compiler, true,
-            "enable optimized side-effect-free int32 expressions.")
-DEFINE_bool(use_flow_graph, false, "perform flow-graph based optimizations")
 
 // compilation-cache.cc
 DEFINE_bool(compilation_cache, true, "enable compilation cache")
 
 DEFINE_bool(cache_prototype_transitions, true, "cache prototype transitions")
 
-// data-flow.cc
-DEFINE_bool(loop_peeling, false, "Peel off the first iteration of loops.")
-
 // debug.cc
-DEFINE_bool(remote_debugging, false, "enable remote debugging")
 DEFINE_bool(trace_debug_json, false, "trace debugging JSON request/response")
 DEFINE_bool(debugger_auto_break, true,
             "automatically set the debug break flag when debugger commands are "
             "in the queue")
 DEFINE_bool(enable_liveedit, true, "enable liveedit experimental feature")
 
 // execution.cc
 DEFINE_int(stack_size, kPointerSize * 128,
            "default size of stack region v8 is allowed to use (in KkBytes)")
 
@@ skipping 67 matching lines @@
 DEFINE_bool(h, false, "print this message")
 DEFINE_bool(new_snapshot, true, "use new snapshot implementation")
 
 // objects.cc
 DEFINE_bool(use_verbose_printer, true, "allows verbose printing")
 
 // parser.cc
 DEFINE_bool(allow_natives_syntax, false, "allow natives syntax")
 DEFINE_bool(strict_mode, true, "allow strict mode directives")
 
-// rewriter.cc
-DEFINE_bool(optimize_ast, true, "optimize the ast")
-
 // simulator-arm.cc and simulator-mips.cc
 DEFINE_bool(trace_sim, false, "Trace simulator execution")
 DEFINE_bool(check_icache, false, "Check icache flushes in ARM simulator")
 DEFINE_int(stop_sim_at, 0, "Simulator stop after x number of instructions")
 DEFINE_int(sim_stack_alignment, 8,
            "Stack alingment in bytes in simulator (4 or 8, 8 is default)")
 
 // isolate.cc
 DEFINE_bool(trace_exception, false,
             "print stack trace when throwing exceptions")
 DEFINE_bool(preallocate_message_memory, false,
             "preallocate some memory to build stack traces.")
 
 // v8.cc
 DEFINE_bool(preemption, false,
             "activate a 100ms timer that switches between V8 threads")
 
 // Regexp
-DEFINE_bool(trace_regexps, false, "trace regexp execution")
 DEFINE_bool(regexp_optimization, true, "generate optimized regexp code")
 DEFINE_bool(regexp_entry_native, true, "use native code to enter regexp")
 
 // Testing flags test/cctest/test-{flags,api,serialization}.cc
 DEFINE_bool(testing_bool_flag, true, "testing_bool_flag")
 DEFINE_int(testing_int_flag, 13, "testing_int_flag")
 DEFINE_float(testing_float_flag, 2.5, "float-flag")
 DEFINE_string(testing_string_flag, "Hello, world!", "string-flag")
 DEFINE_int(testing_prng_seed, 42, "Seed used for threading test randomness")
 #ifdef WIN32
@@ skipping 56 matching lines @@
 DEFINE_bool(trace_codegen, false,
             "print name of functions for which code is generated")
 DEFINE_bool(print_source, false, "pretty print source code")
 DEFINE_bool(print_builtin_source, false,
             "pretty print source code for builtins")
 DEFINE_bool(print_ast, false, "print source AST")
 DEFINE_bool(print_builtin_ast, false, "print source AST for builtins")
 DEFINE_bool(print_json_ast, false, "print source AST as JSON")
 DEFINE_bool(print_builtin_json_ast, false,
             "print source AST for builtins as JSON")
-DEFINE_bool(trace_calls, false, "trace calls")
-DEFINE_bool(trace_builtin_calls, false, "trace builtins calls")
 DEFINE_string(stop_at, "", "function name where to insert a breakpoint")
 
 // compiler.cc
 DEFINE_bool(print_builtin_scopes, false, "print scopes for builtins")
 DEFINE_bool(print_scopes, false, "print scopes")
-DEFINE_bool(print_ir, false, "print the AST as seen by the backend")
-DEFINE_bool(print_graph_text, false,
-            "print a text representation of the flow graph")
 
 // contexts.cc
 DEFINE_bool(trace_contexts, false, "trace contexts operations")
 
 // heap.cc
 DEFINE_bool(gc_greedy, false, "perform GC prior to some allocations")
 DEFINE_bool(gc_verbose, false, "print stuff during garbage collection")
 DEFINE_bool(heap_stats, false, "report heap statistics before and after GC")
 DEFINE_bool(code_stats, false, "report code statistics after GC")
 DEFINE_bool(verify_heap, false, "verify heap pointers before and after GC")
@@ skipping 114 matching lines @@
 #undef FLAG
 
 #undef DEFINE_bool
 #undef DEFINE_int
 #undef DEFINE_string
 
 #undef FLAG_MODE_DECLARE
 #undef FLAG_MODE_DEFINE
 #undef FLAG_MODE_DEFINE_DEFAULTS
 #undef FLAG_MODE_META