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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.

llvm-svn: 20285
This commit is contained in:
Chris Lattner 2005-02-23 06:12:11 +00:00
parent 80c5b97046
commit 5e166a5f3e
1 changed files with 2 additions and 1 deletions
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3
llvm/tools/bugpoint/ExtractFunction.cpp
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@ -98,7 +98,7 @@ static const PassInfo *getPI(Pass *P) {
/// performFinalCleanups - This method clones the current Program and performs /// performFinalCleanups - This method clones the current Program and performs
/// a series of cleanups intended to get rid of extra cruft on the module /// a series of cleanups intended to get rid of extra cruft on the module
/// before handing it to the user... /// before handing it to the user.
/// ///
Module *BugDriver::performFinalCleanups(Module *M, bool MayModifySemantics) { Module *BugDriver::performFinalCleanups(Module *M, bool MayModifySemantics) {
// Make all functions external, so GlobalDCE doesn't delete them... // Make all functions external, so GlobalDCE doesn't delete them...
@ -118,6 +118,7 @@ Module *BugDriver::performFinalCleanups(Module *M, bool MayModifySemantics) {
Module *New = runPassesOn(M, CleanupPasses); Module *New = runPassesOn(M, CleanupPasses);
if (New == 0) { if (New == 0) {
std::cerr << "Final cleanups failed. Sorry. :( Please report a bug!\n"; std::cerr << "Final cleanups failed. Sorry. :( Please report a bug!\n";
return M;
} }
delete M; delete M;
return New; return New;