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Fix a bugpoint crash that JeffC noticed, looking like this:
*** Attempting to perform final cleanups: Final cleanups failed. Sorry. :( Ple ase report a bug! <llc>llc.exe: bytecode didn't read correctly. llc.exe: bytecode didn't read correctly. <crash> Assertion failed: M && "You can't write a null module!!", file c:\llvm\lib\bytec ode\writer\writer.cpp, line 1094 The fact that llc bombed (in this case) is ok, but bugpoint shouldn't crash after this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20285 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -98,7 +98,7 @@ static const PassInfo *getPI(Pass *P) {
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/// performFinalCleanups - This method clones the current Program and performs
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/// performFinalCleanups - This method clones the current Program and performs
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/// a series of cleanups intended to get rid of extra cruft on the module
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/// a series of cleanups intended to get rid of extra cruft on the module
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/// before handing it to the user...
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/// before handing it to the user.
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///
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///
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Module *BugDriver::performFinalCleanups(Module *M, bool MayModifySemantics) {
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Module *BugDriver::performFinalCleanups(Module *M, bool MayModifySemantics) {
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// Make all functions external, so GlobalDCE doesn't delete them...
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// Make all functions external, so GlobalDCE doesn't delete them...
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@ -118,6 +118,7 @@ Module *BugDriver::performFinalCleanups(Module *M, bool MayModifySemantics) {
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Module *New = runPassesOn(M, CleanupPasses);
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Module *New = runPassesOn(M, CleanupPasses);
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if (New == 0) {
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if (New == 0) {
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std::cerr << "Final cleanups failed. Sorry. :( Please report a bug!\n";
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std::cerr << "Final cleanups failed. Sorry. :( Please report a bug!\n";
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return M;
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}
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}
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delete M;
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delete M;
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return New;
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return New;
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