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Issue 14676011: Improve dead code elimination by transitively marking live code and removing all dead code. Replace… (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Rename CanBeEliminated -> CannotBeEliminated, implement IsDeletable() for HPhi. Created 7 years, 7 months ago
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1 // Copyright 2012 the V8 project authors. All rights reserved. 1 // Copyright 2012 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without 2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are 3 // modification, are permitted provided that the following conditions are
4 // met: 4 // met:
5 // 5 //
6 // * Redistributions of source code must retain the above copyright 6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer. 7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above 8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following 9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided 10 // disclaimer in the documentation and/or other materials provided
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198 DEFINE_implication(track_double_fields, track_fields) 198 DEFINE_implication(track_double_fields, track_fields)
199 199
200 // Flags for data representation optimizations 200 // Flags for data representation optimizations
201 DEFINE_bool(unbox_double_arrays, true, "automatically unbox arrays of doubles") 201 DEFINE_bool(unbox_double_arrays, true, "automatically unbox arrays of doubles")
202 DEFINE_bool(string_slices, true, "use string slices") 202 DEFINE_bool(string_slices, true, "use string slices")
203 203
204 // Flags for Crankshaft. 204 // Flags for Crankshaft.
205 DEFINE_bool(crankshaft, true, "use crankshaft") 205 DEFINE_bool(crankshaft, true, "use crankshaft")
206 DEFINE_string(hydrogen_filter, "", "optimization filter") 206 DEFINE_string(hydrogen_filter, "", "optimization filter")
207 DEFINE_bool(use_range, true, "use hydrogen range analysis") 207 DEFINE_bool(use_range, true, "use hydrogen range analysis")
208 DEFINE_bool(eliminate_dead_phis, true, "eliminate dead phis")
209 DEFINE_bool(use_gvn, true, "use hydrogen global value numbering") 208 DEFINE_bool(use_gvn, true, "use hydrogen global value numbering")
210 DEFINE_bool(use_canonicalizing, true, "use hydrogen instruction canonicalizing") 209 DEFINE_bool(use_canonicalizing, true, "use hydrogen instruction canonicalizing")
211 DEFINE_bool(use_inlining, true, "use function inlining") 210 DEFINE_bool(use_inlining, true, "use function inlining")
212 DEFINE_int(max_inlined_source_size, 600, 211 DEFINE_int(max_inlined_source_size, 600,
213 "maximum source size in bytes considered for a single inlining") 212 "maximum source size in bytes considered for a single inlining")
214 DEFINE_int(max_inlined_nodes, 196, 213 DEFINE_int(max_inlined_nodes, 196,
215 "maximum number of AST nodes considered for a single inlining") 214 "maximum number of AST nodes considered for a single inlining")
216 DEFINE_int(max_inlined_nodes_cumulative, 196, 215 DEFINE_int(max_inlined_nodes_cumulative, 196,
217 "maximum cumulative number of AST nodes considered for inlining") 216 "maximum cumulative number of AST nodes considered for inlining")
218 DEFINE_bool(loop_invariant_code_motion, true, "loop invariant code motion") 217 DEFINE_bool(loop_invariant_code_motion, true, "loop invariant code motion")
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783 #undef DEFINE_bool 782 #undef DEFINE_bool
784 #undef DEFINE_int 783 #undef DEFINE_int
785 #undef DEFINE_string 784 #undef DEFINE_string
786 #undef DEFINE_implication 785 #undef DEFINE_implication
787 786
788 #undef FLAG_MODE_DECLARE 787 #undef FLAG_MODE_DECLARE
789 #undef FLAG_MODE_DEFINE 788 #undef FLAG_MODE_DEFINE
790 #undef FLAG_MODE_DEFINE_DEFAULTS 789 #undef FLAG_MODE_DEFINE_DEFAULTS
791 #undef FLAG_MODE_META 790 #undef FLAG_MODE_META
792 #undef FLAG_MODE_DEFINE_IMPLICATIONS 791 #undef FLAG_MODE_DEFINE_IMPLICATIONS
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