Commit Graph

47 Commits

Author SHA1 Message Date
Bill Wendling
4e3be89cb5 Fix for PR960. Improves bugpoint so that it removes global variable
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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31182 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-25 18:36:14 +00:00
Chris Lattner
c600f3c337 Add a new -cbe-bug mode, which works just like -run-llc, except that it uses
LLC as the reference compiler to reduce testcases for bugs in GCC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30400 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-15 21:29:15 +00:00
Chris Lattner
c0431fe1ca fit in 80 cols
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29754 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-17 18:51:28 +00:00
Patrick Jenkins
6a3f31cb70 This commit adds a new feature called find-bugs. The find-bugs option can be invoked on a .bc file from the command like with -find-bugs and a list of passes you wish to test. This procedure takes the set of optimization passes the user specifies, randomizes the passes, runs the passes on the specified .bc file, compiles the program, and finally runs the program checking its output vs the .bc file with no optimizations. This process repeats until either the user kills bugpoint or an error occurs in the optimizations, program complitation, or the running of the program. If an error occurs, bugpoint attempts to diagnose the error by eliminating passes that are not at fault and code that is not needed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29703 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-15 16:40:49 +00:00
Chris Lattner
9686ae7f4e Teach bugpoint to kill optimization passes that run over the timeout limit,
which allows it to debug optimizer infinite loops.  This patch is contributed
by Nick Lewycky, thanks!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28763 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-13 03:10:48 +00:00
Reid Spencer
c4bb052ecc For PR351:
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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24961 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-22 20:02:55 +00:00
Chris Lattner
f9aaae06cd When the user hits ctrl-c, bugpoint should attempt to stop reduction as
quickly as possible and output what it has so far.  If they hit it twice,
bugpoint is killed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22579 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-02 02:16:17 +00:00
Jeff Cohen
ea3e5e56fd Eliminate tabs and trailing spaces
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21441 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-22 04:13:13 +00:00
Misha Brukman
3da94aec4d Remove trailing whitespace
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21428 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-22 00:00:37 +00:00
Chris Lattner
5e783ab0b5 Implement basic block extraction for the miscompilation debugger. This still needs
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 :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13471 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-11 21:54:13 +00:00
Chris Lattner
a57d86b436 Merge the code generator miscompilation code into the optimizer miscompilation
code.  This "instantly" gives us loop-extractor power to assist with the
debugment of our nasty codegen issues.  :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12678 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-05 22:58:16 +00:00
Chris Lattner
11b8cd197a Make a method public
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12677 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-05 22:01:48 +00:00
Chris Lattner
0a00256900 Add a new "AutoDebugCrashes" option
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12396 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-14 21:21:57 +00:00
Chris Lattner
3b6441e105 Add new method
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12394 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-14 21:17:03 +00:00
Chris Lattner
efdc0b5057 Refactor and clean up a bunch more code. No major functionality changes.
* 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12393 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-14 20:50:42 +00:00
Chris Lattner
7546c3884a Add a method to extract a loop
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12391 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-14 20:02:07 +00:00
Chris Lattner
be21ca54e0 Refactor all of the "splitting a module into two pieces" code to avoid
code duplication.  Also, don't use ReduceMiscompilingFunctions::TestFuncs
to print out the final message.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12387 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-14 19:27:19 +00:00
Chris Lattner
ea9212ca96 Add a new method for use by the code generator crash debugger.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11613 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-18 23:25:22 +00:00
Chris Lattner
0cc8807029 Make more stuff public. Make the instruction argument to
deleteInstructionFromProgram be const


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11606 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-18 21:50:26 +00:00
Chris Lattner
a36ec88203 make a bunch of methods public
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11605 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-18 21:35:28 +00:00
Chris Lattner
f913f40be8 A couple of minor cleanups: don't forward declare private classes, put private
classes in an anon namespace


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11604 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-18 21:29:46 +00:00
Chris Lattner
06905db7d2 Cleanup and simplify manipulation of the program, eliminate the need for so
many 'friends' of bugdriver.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11603 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-18 21:24:48 +00:00
Chris Lattner
025262692a Add a stub for debugging code generator crashes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11602 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-18 21:02:04 +00:00
Chris Lattner
7bb11547e4 Update comments, if we are running with the CBE, make sure the Interpreter
variable and the CBE variable are pointer equal.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11599 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-18 20:52:02 +00:00
Brian Gaeke
c5cad211d6 Add check-exit-code option, defaulting to true.
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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11325 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-11 18:37:32 +00:00
Brian Gaeke
d0fde30ce8 Put all LLVM code into the llvm namespace, as per bug 109.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9903 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-11 22:41:34 +00:00
Chris Lattner
fcb6ec0c7e I hate it when bugpoint is all ready to give me a bytecode file, then crashes
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).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9743 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-05 21:45:35 +00:00
Chris Lattner
417477d6c2 Simplify the performFinalCleanups interface
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9740 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-05 21:15:19 +00:00
Chris Lattner
943211187d fix file headers
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9293 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-20 17:57:13 +00:00
John Criswell
7c0e022c5c Added copyright header to all C++ source files.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9291 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-20 17:47:21 +00:00
Chris Lattner
9c6cfe1bff Be more helpful if a pass fails while chasing down a miscompilation
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9214 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-17 23:03:16 +00:00
Chris Lattner
769f1fe672 Change the execute methods to take the shared object filename by const reference.
Other adjustments to work with the new ToolRunner interfaces


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9130 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-14 21:59:36 +00:00
Chris Lattner
a0f5b15e1e The return value of compileSharedObject was never used. Return the shared
object's name instead


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9120 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-14 21:09:11 +00:00
Chris Lattner
47ae4a1cee If we're debugging the SimplifyCFG pass, we _REALLY_ don't want to use it for
narrowing, no matter what.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7596 91177308-0d34-0410-b5e6-96231b3b80d8
2003-08-05 15:51:05 +00:00
Chris Lattner
587a6ce4b9 Parameterize the performFinalCleanups a bit
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7477 91177308-0d34-0410-b5e6-96231b3b80d8
2003-08-01 16:13:49 +00:00
Misha Brukman
fe04db890b Added comment to function isExecutingJIT()
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7370 91177308-0d34-0410-b5e6-96231b3b80d8
2003-07-28 20:59:16 +00:00
Misha Brukman
91eabc13d3 BugDriver.h:
* Added method to query if BugDriver is executing the JIT currently.
  This provides the ability in adding code that is conditionally executed in
  codegen debugging phase.

CodeGeneratorBug.cpp:
* Delete test functions from the Safe module
* Code conditionally added when debugging the JIT:
  use the lazy resolver function added to Emitter.cpp to get function pointer
  by name. When compiled into an .so, this is the only way to get a pointer to
  an external function
* Added a symbol disambiguator which will keep symbols uniquely named across
  modules
* Delete generated files by default
* The function `main' *must* stay in the .bc file for the JIT, but that prevents
  debugging it alone. This patch makes the old `main' become `old_main' and adds
  a new function named `main' which just calls the original with the same
  parameters, thereby keeping functionality the same.

ExecutionDriver.cpp:
* Returned to getting unique filenames
* Simplified code choosing between using and not using shared library option


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7364 91177308-0d34-0410-b5e6-96231b3b80d8
2003-07-28 19:16:14 +00:00
Misha Brukman
a259c9be2a Made a bunch of cleanups, as per Chris' recommendations:
* Removed unused global and member variables
* Fixed comments (CodeGeneratorBug.cpp)
* Check for possibly failing GCC::create() and CBE::create()
* Remove generated files after diffing the output (e.g., shared object)
* Instead of using std::for_each, use explicit loops as std::for_each may
  duplicate the functor, and ours carries state
* Changed member var from cl::opt<std::string> to just std::string
* Fixed doxygen comments
* Fixed string comparisons to use [ str.empty() ] instead of [ str == "" ]
* Cache instances of CBE and GCC in BugDriver across compilations and executions
  while testing tools.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7302 91177308-0d34-0410-b5e6-96231b3b80d8
2003-07-24 21:59:10 +00:00
Misha Brukman
5073336cd4 Major addition to bugpoint: ability to debug code generators (LLC and LLI).
The C backend is assumed correct and is used to generate shared objects to be
loaded by the other two code generators.

LLC debugging should be functional now, LLI needs a few more additions to work,
the major one is renaming of external functions to call the JIT lazy function
resolver.

Bugpoint now has a command-line switch -mode with options 'compile' and
'codegen' to debug appropriate portions of tools.

ExecutionDriver.cpp: Added implementations of AbstractInterpreter for LLC and
GCC, broke out common code within other tools, and added ability to generate C
code with CBE individually, without executing the program, and the GCC tool can
generate executables shared objects or executables.

If no reference output is specified to Bugpoint, it will be generated with CBE,
because it is already assumed to be correct for the purposes of debugging using
this method. As a result, many functions now accept as an optional parameter a
shared object to be loaded in, if specified.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7293 91177308-0d34-0410-b5e6-96231b3b80d8
2003-07-24 18:17:43 +00:00
Chris Lattner
286921e8d2 Speed up convergence significantly and also reduce the size of testcases by making large portions of a function's CFG dead at a time.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5915 91177308-0d34-0410-b5e6-96231b3b80d8
2003-04-24 23:51:38 +00:00
Chris Lattner
44be257166 Remove dead functions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5913 91177308-0d34-0410-b5e6-96231b3b80d8
2003-04-24 22:53:24 +00:00
Chris Lattner
aae33f9137 Use the list reducer to improve convergence speed and to support crashes that
only occur when multiple passes interact or when multiple functions exist in a module


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5911 91177308-0d34-0410-b5e6-96231b3b80d8
2003-04-24 22:24:58 +00:00
Chris Lattner
640f22e66d Implement support for bugpoint to identify which FUNCTION an optimization
is miscompiling.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5893 91177308-0d34-0410-b5e6-96231b3b80d8
2003-04-24 17:02:17 +00:00
Chris Lattner
ba386d943f * Reduce the number of useless bytecode files produced by bugpoint.
- This also speeds it up as the bytecode writer isn't terribly fast.
* Add a new cleanup pass after everything else to run -funcresolve -globaldce


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5668 91177308-0d34-0410-b5e6-96231b3b80d8
2003-02-28 16:13:20 +00:00
Chris Lattner
6520785dcd Make bugpoint *much* more powerful, giving it the capability to delete instructions
out of a large function to reduce it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5408 91177308-0d34-0410-b5e6-96231b3b80d8
2003-01-23 02:48:33 +00:00
Chris Lattner
218e26ef35 Implement the start of the miscompilation detection stuff
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5119 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-23 23:49:59 +00:00
Chris Lattner
afade9294a Initial checkin of bugpoint
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4789 91177308-0d34-0410-b5e6-96231b3b80d8
2002-11-20 22:28:10 +00:00