SuccessChanges

Summary

  1. [Hexagon] Fix order of operands in V6_vdealb4w (details)
  2. [libFuzzer] Add a command-line option for tracing mutation of corpus inputs in the dot graph format. (details)
  3. [NFC] Move functon from IndVarSimplify to SCEV (details)
Commit c2b7b9b642b3247061c4850e9c868c903e3b9654 by kparzysz
[Hexagon] Fix order of operands in V6_vdealb4w
The file was modifiedllvm/lib/Target/Hexagon/HexagonPatternsHVX.td
Commit 1bb1eac6b177739429e78703b265e7546792fd64 by dokyungs
[libFuzzer] Add a command-line option for tracing mutation of corpus inputs in the dot graph format.

This patch adds a new command-line option -mutation_graph_file=FILE for
debugging purposes, which traces how corpus inputs evolve during a fuzzing
run. For each new input that is added to the corpus, a new vertex corresponding
to the added input, as well as a new edge that connects its base input to itself
are written to the given file. Each vertex is labeled with the filename of the
input, and each edge is labeled with the mutation sequence that led to the input
w.r.t. its base input.

The format of the mutation graph file is the dot file format. Once prepended and
appended with "graph {" and "}", respectively, the graph becomes a valid dot
file and can be visualized.

Differential Revision: https://reviews.llvm.org/D86560
The file was modifiedcompiler-rt/lib/fuzzer/FuzzerMutate.cpp
The file was addedcompiler-rt/test/fuzzer/mutation-graph.test
The file was modifiedcompiler-rt/lib/fuzzer/FuzzerDriver.cpp
The file was modifiedcompiler-rt/lib/fuzzer/FuzzerIO.cpp
The file was modifiedcompiler-rt/lib/fuzzer/FuzzerIO.h
The file was modifiedcompiler-rt/lib/fuzzer/FuzzerOptions.h
The file was modifiedcompiler-rt/lib/fuzzer/FuzzerMutate.h
The file was modifiedcompiler-rt/lib/fuzzer/FuzzerLoop.cpp
The file was modifiedcompiler-rt/lib/fuzzer/FuzzerFlags.def
Commit 795e4ee9d2db386a45dc12e6ead21f5f3151d05c by mkazantsev
[NFC] Move functon from IndVarSimplify to SCEV

This function can be reused in other places.

Differential Revision: https://reviews.llvm.org/D87274
Reviewed By: fhahn, lebedev.ri
The file was modifiedllvm/lib/Transforms/Scalar/IndVarSimplify.cpp
The file was modifiedllvm/lib/Analysis/ScalarEvolution.cpp
The file was modifiedllvm/include/llvm/Analysis/ScalarEvolution.h