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Makes it more clear that it is just a path manipulation function.

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PATH isn't actually searched, and to not mention the executable
directory when it isn't actually searched.


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Get rid of static constructors for pass registration.  Instead, every pass exposes an initializeMyPassFunction(), which
must be called in the pass's constructor.  This function uses static dependency declarations to recursively initialize
the pass's dependencies.

Clients that only create passes through the createFooPass() APIs will require no changes.  Clients that want to use the
CommandLine options for passes will need to manually call the appropriate initialization functions in PassInitialization.h
before parsing commandline arguments.

I have tested this with all standard configurations of clang and llvm-gcc on Darwin.  It is possible that there are problems
with the static dependencies that will only be visible with non-standard options.  If you encounter any crash in pass
registration/creation, please send the testcase to me directly.


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This reverts commit r113632

Conflicts:

	cmake/modules/AddLLVM.cmake

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of a base class.

This makes it possible to unregister the file from FilesToRemove when
the file is done. Also, this eliminates the need for
formatted_tool_output_file.


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they hit the rest of the system.


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patch by NAKAMURA Takumi!



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checking to places which previously lacked it.


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invocation. Fixes PR7793:

bugpoint -debug test.ll --opt-args -unroll-count=4

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use opt.

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ID member as the sole unique type identifier.  Clean up APIs related to this change.


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--- Reverse-merging r110333 into '.':
U    tools/bugpoint/BugDriver.h
U    tools/bugpoint/OptimizerDriver.cpp
U    tools/bugpoint/bugpoint.cpp
U    tools/bugpoint/BugDriver.cpp


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Fixes PR753.

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const.

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that argument to simplify runPassesOn.

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module and take a const BugDriver.

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exactly what bugpoint expected it to do.

There was also only one user of
BlockExtractorPass(const std::vector<BasicBlock*> &B), so just remove it and
make BlockExtractorPass read BlockFile.

This fixes bugpoint's block extraction.

Nick, please review.

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memory when one of the original BB is destroyed.

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EmitProgressBitcode.

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ReduceMiscompilingFunctions::TestFuncs. This makes the test functional
(i.e., no side effects).

Before we would end up using dead functions if a pass decided to remove them
(inline for example) and we would also keep broken functions and conclude that
that a single function was enough to reproduce the bug.

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