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from c4f8e568aa6 libstdc++: Add a fallback 128-bit integer class type and use it new 3f958348e78 analyzer: gracefully handle impossible paths in shortest-paths.h new 5e33e5b042a analyzer: support reverse direction in shortest-paths.h new 3857edb5d32 analyzer: new implementation of shortest feasible path [PR96374]

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Summary of changes: gcc/Makefile.in | 4 +- gcc/analyzer/analyzer.opt | 8 + gcc/analyzer/diagnostic-manager.cc | 490 +++++++++++++++++++-- gcc/analyzer/diagnostic-manager.h | 6 +- gcc/analyzer/engine.cc | 99 +++-- gcc/analyzer/exploded-graph.h | 8 + gcc/analyzer/feasible-graph.cc | 235 ++++++++++ gcc/analyzer/feasible-graph.h | 213 +++++++++ gcc/analyzer/trimmed-graph.cc | 172 ++++++++ gcc/analyzer/trimmed-graph.h | 122 +++++ gcc/digraph.cc | 134 +++++- gcc/doc/analyzer.texi | 56 ++- gcc/doc/invoke.texi | 8 + gcc/shortest-paths.h | 138 ++++-- gcc/testsuite/gcc.dg/analyzer/dot-output.c | 2 +- gcc/testsuite/gcc.dg/analyzer/feasibility-1.c | 16 +- .../analyzer/pr93355-localealias-feasibility-2.c | 4 +- .../analyzer/pr93355-localealias-feasibility-3.c | 8 +- .../analyzer/pr93355-localealias-feasibility.c | 2 - .../gcc.dg/analyzer/pr93355-localealias.c | 4 +- gcc/testsuite/gcc.dg/analyzer/unknown-fns-4.c | 2 +- 21 files changed, 1569 insertions(+), 162 deletions(-) create mode 100644 gcc/analyzer/feasible-graph.cc create mode 100644 gcc/analyzer/feasible-graph.h create mode 100644 gcc/analyzer/trimmed-graph.cc create mode 100644 gcc/analyzer/trimmed-graph.h