code.  This "instantly" gives us loop-extractor power to assist with the
debugment of our nasty codegen issues.  :)

llvm-svn: 12678

llvm-svn: 12677

llvm-svn: 12396

llvm-svn: 12394

 * 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

llvm-svn: 12393

llvm-svn: 12391

code duplication.  Also, don't use ReduceMiscompilingFunctions::TestFuncs
to print out the final message.

llvm-svn: 12387

llvm-svn: 11613

deleteInstructionFromProgram be const

llvm-svn: 11606

llvm-svn: 11605

classes in an anon namespace

llvm-svn: 11604

many 'friends' of bugdriver.

llvm-svn: 11603

llvm-svn: 11602

variable and the CBE variable are pointer equal.

llvm-svn: 11599

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.

llvm-svn: 11325

llvm-svn: 9903

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).

llvm-svn: 9743

llvm-svn: 9740

llvm-svn: 9293

llvm-svn: 9291

llvm-svn: 9214

Other adjustments to work with the new ToolRunner interfaces

llvm-svn: 9130

object's name instead

llvm-svn: 9120

narrowing, no matter what.

llvm-svn: 7596

llvm-svn: 7477

llvm-svn: 7370

* 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

llvm-svn: 7364

* 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.

llvm-svn: 7302

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.

llvm-svn: 7293

Speed up convergence significantly and also reduce the size of testcases by making large portions of a function's CFG dead at a time.

llvm-svn: 5915

llvm-svn: 5913

only occur when multiple passes interact or when multiple functions exist in a module

llvm-svn: 5911

is miscompiling.

llvm-svn: 5893

  - 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

llvm-svn: 5668

out of a large function to reduce it.

llvm-svn: 5408

llvm-svn: 5119

llvm-svn: 4789