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Allow disabling final cleanups

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llvm-svn: 6271
This commit is contained in:
Chris Lattner 2003-05-21 20:38:59 +00:00
parent 777fdfc135
commit 4875906a69
1 changed files with 11 additions and 1 deletions
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12
tools/bugpoint/ExtractFunction.cpp
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@ -26,6 +26,9 @@ namespace {
cl::opt<bool>
NoSCFG("disable-simplifycfg",
cl::desc("Do not use the -simplifycfg pass to reduce testcases"));
cl::opt<bool>
NoFinalCleanup("disable-final-cleanup",
cl::desc("Disable the final cleanup phase of narrowing"));
}
/// deleteInstructionFromProgram - This method clones the current Program and
@ -79,10 +82,17 @@ Module *BugDriver::deleteInstructionFromProgram(Instruction *I,
Module *BugDriver::performFinalCleanups() const {
Module *M = CloneModule(Program);
// Allow disabling these passes if they crash bugpoint.
//
// FIXME: This should eventually run these passes in a pass list to prevent
// them from being able to crash bugpoint at all!
//
if (NoFinalCleanup) return M;
// Make all functions external, so GlobalDCE doesn't delete them...
for (Module::iterator I = M->begin(), E = M->end(); I != E; ++I)
I->setLinkage(GlobalValue::ExternalLinkage);
PassManager CleanupPasses;
CleanupPasses.add(createFunctionResolvingPass());
CleanupPasses.add(createGlobalDCEPass());