by dropping all references from all constants that can use other
constants before trying to destroy any of them.
I also had to free bugpoint's Module in ~BugDriver().
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just argv[0]. And remove the code for searching the current
working directory and for searching PATH; the point of FindExecutable
is not to find whatever version of the executable can be found by
searching around, but to find an executable that accompanies the
current executable.
Update the tools to use sys::Program::FindProgramByName when they
want PATH searching.
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of the bitcode reader and ASM parser APIs, as well as supporting it in all of the tools.
Patches for Clang and LLVM-GCC to follow.
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to allow the "safe" backend to be run with a different path, and/or
with different command-line options.
This enables the following use cases:
- bugpoint llc against an llc command from a different build
- bugpoint llc against the same llc with different command-line options
- and more...
Also, document the existing "custom" interpreter options.
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from a file containing Function/BasicBlock pairings. This is not safe against
anonymous or abnormally-named Funcs or BBs.
Make bugpoint use this interface to pass the BBs list to the child bugpoint.
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initializers as well. This is only a first pass. It can be slow because
it clones the module for each pass. An obvious improvement is not to do that.
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which allows it to debug optimizer infinite loops. This patch is contributed
by Nick Lewycky, thanks!
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Generally, remove use of fork/exec from bugpoint in favor of the portable
sys::Program::ExecuteAndWait method. This change requires two new options
to bugpoint to tell it that it is running in "child" mode. In this mode,
it reads its input and runs the passes. The result code signals to the
parent instance of bugpoint what happened (success, fail, crash).
This change should make bugpoint usable on Win32 systems.
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two things: the FIXME in ExtractBlocks needs to be implemented, and the basic block
extractor itself needs to have enough bugs fixed for this to be more or less
useful.
Until the time that this is generally useful, it is hidden behind the new bugpoint
-enable-block-extraction option. I hope to get the FIXME done tonight.
Also of note, this patch adds a -extract-bbs option to bugpoint which can be used
to debug the block extractor. (hint hint Misha :)
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code. This "instantly" gives us loop-extractor power to assist with the
debugment of our nasty codegen issues. :)
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* Make several methods of bugdriver global functions (ParseInputFile, PrintFunctionList)
* Make PrintFunctionList truncate the output after 10 entries, like the crash debugger
did. This allows code sharing.
* Add a couple of methods to BugDriver that allows us to eliminate some friends
* Improve comments in ExtractFunction.cpp
* Make classes that used to be friends up bugdriver now live in anon namespaces
* Rip a bunch of functionality in the miscompilation tester into a new
TestMergedProgram function for future code sharing.
* Fix a bug in the miscompilation tester induced in my last checkin
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code duplication. Also, don't use ReduceMiscompilingFunctions::TestFuncs
to print out the final message.
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Add ProgramExitedNonzero argument to executeProgram(), and make it
tell its caller whether the program exited nonzero.
Move executeProgramWithCBE() out of line, to ExecutionDriver.cpp, and remove
its extra arguments which are always defaulted. Make it turn off
check-exit-code if the program exits nonzero while generating a reference
output.
Make diffProgram() assume that any nonzero exit code is a failure, if
check-exit-code is turned on.
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in final cleanups. Then you had to run the whole mess again with
-disable-final-cleanups.
This makes bugpoint run the cleanups in a protected environment so that if
they crash, bugpoint itself doesn't crash. This makes things much happier,
implements a FIXME, and gets rid of YABPO (yet another bugpoint option).
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