README
1Copyright (c) 2002, 2018, Oracle and/or its affiliates. All rights reserved.
2DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4This code is free software; you can redistribute it and/or modify it
5under the terms of the GNU General Public License version 2 only, as
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10FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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152 along with this work; if not, write to the Free Software Foundation,
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21
22Dead Code Detection
23-------------------
24A statement that can never be executed or whose execution is irrelevant is considered dead.
25The most obvious form of dead code is an unreachable statement, which has no control flow path from the beginning of the program to the statement. Code can be unreachable either statically, meaning there is no path to the statement, or dynamically, meaning there are no paths that can be executable.
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27The second form of dead code is the dead definition, which is a definition of a data that is either redefined before it is referenced, or is never referenced. One restriction on this definition is that the execution of the assignment statement does not alter the value of any other data item other than the one being defined (that is, no side-effects).
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