[LLVMbugs] [Bug 1770] New: opt -loopunroll crash

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=1770

           Summary: opt -loopunroll crash
           Product: new-bugs
           Version: unspecified
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: new bugs
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: edwintorok at gmail.com
                CC: llvmbugs at cs.uiuc.edu


Created an attachment (id=1195)
 --> (http://llvm.org/bugs/attachment.cgi?id=1195)
simplified testcase

$ opt bugpoint-reduced-simplified.bc -loop-unroll -o f.bc -f
opt[0x9c16ba]
opt[0x9c1926]
/lib/libc.so.6[0x32d1c31710]
opt(llvm::PATypeHolder::get() const+0x10)[0x961b5c]
opt(llvm::PATypeHolder::operator llvm::Type*() const+0x15)[0x6d7037]
opt(llvm::Value::getType() const+0x19)[0x6d7053]
opt(llvm::PHINode::addIncoming(llvm::Value*, llvm::BasicBlock*)+0x2a)[0x6fc1f2]
opt[0x7c7eae]
opt[0x7c873c]
opt(llvm::LPPassManager::runOnFunction(llvm::Function&)+0x3b8)[0x8979ce]
opt(llvm::FPPassManager::runOnFunction(llvm::Function&)+0x10e)[0x953f92]
opt(llvm::FPPassManager::runOnModule(llvm::Module&)+0x52)[0x954100]
opt(llvm::MPPassManager::runOnModule(llvm::Module&)+0xec)[0x953c8c]
opt(llvm::PassManagerImpl::run(llvm::Module&)+0x74)[0x953e1c]
opt(llvm::PassManager::run(llvm::Module&)+0x20)[0x953e7e]
opt(main+0x986)[0x6bfe78]
/lib/libc.so.6(__libc_start_main+0xf4)[0x32d1c1db44]
opt(cos+0x119)[0x6b1609]
Segmentation fault

Attached bugpoint-reduced-simplified.ll


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