http://llvm.org/bugs/show_bug.cgi?id=9550
Summary: Crash when calling addRequiredTransitive<LoopInfo>
from a ModulePass.
Product: libraries
Version: 2.9
Platform: PC
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P
Component: Core LLVM classes
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected]
When a ModulePass has addRequiredTransitive<LoopInfo>(), a segfault occurs.
The problem is in MPPassManager::addLowerLevelRequiredPass().
The call to FPP->add(RequiredPass) may delete the RequiredPass object (see
PMTopLevelManager::schedulePass).
Five lines down, the reference to the now deleted object is passed to
PMTopLevelManager::setLastUser().
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