[LLVMbugs] [Bug 13892] New: Crash during loop-idiom

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=13892

             Bug #: 13892
           Summary: Crash during loop-idiom
           Product: new-bugs
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: new bugs
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: willdtz at gmail.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified


Created attachment 9241
  --> http://llvm.org/bugs/attachment.cgi?id=9241
Testcase triggering loop-idiom crasher

opt bugpoint-reduced-simplified.ll -verify -loop-idiom -disable-output
0  opt             0x000000000089b522                          
1  opt             0x000000000089b974
2  libpthread.so.0 0x000000385f40f500
3  opt             0x00000000007acbb0 llvm::BasicBlock::getTerminator() + 0
4  opt             0x0000000000507c82
5  opt             0x0000000000506af9
6  opt             0x00000000006c0ba7
llvm::LPPassManager::runOnFunction(llvm::Function&) + 823
7  opt             0x0000000000840a4a
llvm::FPPassManager::runOnFunction(llvm::Function&) + 346
8  opt             0x0000000000840d3b
llvm::FPPassManager::runOnModule(llvm::Module&) + 171
9  opt             0x0000000000840f47
llvm::MPPassManager::runOnModule(llvm::Module&) + 327
10 opt             0x0000000000841533 llvm::PassManagerImpl::run(llvm::Module&)
+ 451
11 opt             0x000000000084166a llvm::PassManager::run(llvm::Module&) +
10
12 opt             0x00000000004865de main + 5806
13 libc.so.6       0x000000385e81ecdd __libc_start_main + 253
14 opt             0x00000000004801e9
Stack dump:
0.      Program arguments: opt bugpoint-reduced-simplified.ll -verify
-loop-idiom -disable-output 
1.      Running pass 'Function Pass Manager' on module
'bugpoint-reduced-simplified.ll'.
2.      Running pass 'Loop Pass Manager' on function '@SetCoeffAndReconstruct'
3.      Running pass 'Recognize loop idioms' on basic block '%for.bodyprime'
zsh: segmentation fault  opt bugpoint-reduced-simplified.ll -verify -loop-idiom
-disable-output


On latest LLVM (r164350), LMK if you need more information about host platform,
etc.

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