//===- PrintSCC.cpp - Enumerate SCCs in some key graphs -------------------===//
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// The LLVM Compiler Infrastructure
//
// This file was developed by the LLVM research group and is distributed under
// the University of Illinois Open Source License. See LICENSE.TXT for details.
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//===----------------------------------------------------------------------===//
//
// This file provides passes to print out SCCs in a CFG or a CallGraph.
// analyze -cfgscc to print the SCCs in each CFG of a module.
// analyze -cfgscc -stats to print the #SCCs and the maximum SCC size.
// analyze -cfgscc -debug > /dev/null to watch the algorithm in action.
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// and similarly:
// analyze -callscc [-stats] [-debug] to print SCCs in the CallGraph
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// (3) To test the scc_iterator.
//
//===----------------------------------------------------------------------===//