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from 4d661bb7a2e analyzer: tweaks to superedge::dump new 8f02357571a analyzer: improvements to diagnostic-manager.cc logging new 42c63313252 analyzer: add new supergraph visualization new 6969ac301f2 analyzer: fix malloc pointer NULL-ness

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Summary of changes: gcc/ChangeLog | 17 ++ gcc/analyzer/ChangeLog | 79 ++++++++ gcc/analyzer/analyzer.h | 1 + gcc/analyzer/diagnostic-manager.cc | 47 +++-- gcc/analyzer/diagnostic-manager.h | 32 +++ gcc/analyzer/engine.cc | 270 ++++++++++++++++++++++++-- gcc/analyzer/exploded-graph.h | 24 ++- gcc/analyzer/program-state.cc | 2 +- gcc/analyzer/region-model.cc | 61 ++++++ gcc/analyzer/region-model.h | 10 +- gcc/analyzer/state-purge.cc | 21 +- gcc/analyzer/state-purge.h | 5 +- gcc/analyzer/supergraph.cc | 46 ++++- gcc/analyzer/supergraph.h | 19 +- gcc/doc/invoke.texi | 8 +- gcc/graphviz.cc | 44 ++++- gcc/graphviz.h | 6 + gcc/testsuite/ChangeLog | 12 ++ gcc/testsuite/gcc.dg/analyzer/data-model-5b.c | 6 +- gcc/testsuite/gcc.dg/analyzer/data-model-5c.c | 7 +- gcc/testsuite/gcc.dg/analyzer/dot-output.c | 1 + gcc/testsuite/gcc.dg/analyzer/malloc-5.c | 12 ++ 22 files changed, 672 insertions(+), 58 deletions(-) create mode 100644 gcc/testsuite/gcc.dg/analyzer/malloc-5.c