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I hate it when bugpoint is all ready to give me a bytecode file, then crashes

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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).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9743 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2003-11-05 21:45:35 +00:00
parent 3323f2abbd
commit fcb6ec0c7e
4 changed files with 35 additions and 25 deletions
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50
tools/bugpoint/ExtractFunction.cpp
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@@ -37,9 +37,6 @@ namespace {
cl::opt<bool, true>
NoSCFG("disable-simplifycfg", cl::location(DisableSimplifyCFG),
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
@@ -89,29 +86,42 @@ Module *BugDriver::deleteInstructionFromProgram(Instruction *I,
return Result;
}
static const PassInfo *getPI(Pass *P) {
const PassInfo *PI = P->getPassInfo();
delete P;
return PI;
}
/// performFinalCleanups - This method clones the current Program and performs
/// a series of cleanups intended to get rid of extra cruft on the module
/// before handing it to the user...
///
void BugDriver::performFinalCleanups(Module *M, bool MayModifySemantics) const {
// 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;
Module *BugDriver::performFinalCleanups(Module *M, bool MayModifySemantics) {
// 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;
// Make sure that the appropriate target data is always used...
CleanupPasses.add(new TargetData("bugpoint", M));
CleanupPasses.add(createFunctionResolvingPass());
CleanupPasses.add(createGlobalDCEPass());
CleanupPasses.add(createDeadTypeEliminationPass());
CleanupPasses.add(createDeadArgEliminationPass(MayModifySemantics));
CleanupPasses.add(createVerifierPass());
CleanupPasses.run(*M);
std::vector<const PassInfo*> CleanupPasses;
CleanupPasses.push_back(getPI(createFunctionResolvingPass()));
CleanupPasses.push_back(getPI(createGlobalDCEPass()));
CleanupPasses.push_back(getPI(createDeadTypeEliminationPass()));
CleanupPasses.push_back(getPI(createDeadArgHackingPass()));
std::swap(Program, M);
std::string Filename;
bool Failed = runPasses(CleanupPasses, Filename);
std::swap(Program, M);
if (Failed) {
std::cerr << "Final cleanups failed. Sorry. :(\n";
} else {
delete M;
M = ParseInputFile(Filename);
if (M == 0) {
std::cerr << getToolName() << ": Error reading bytecode file '"
<< Filename << "'!\n";
exit(1);
}
}
return M;
}