[LLVMbugs] [Bug 14368] New: opt -memdep -gvn crash

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=14368

             Bug #: 14368
           Summary: opt -memdep -gvn crash
           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: matti.niemenmaa+llvmbugs at iki.fi
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified


Created attachment 9558
  --> http://llvm.org/bugs/attachment.cgi?id=9558
Testcase

$ opt --version
LLVM (http://llvm.org/):
  LLVM version 3.2svn
  DEBUG build with assertions.
  Built Nov 17 2012 (17:58:08).
  Default target: x86_64-unknown-linux-gnu
  Host CPU: penryn

$ opt -memdep -gvn < bugpoint-reduced-simplified.ll -S
0  opt             0x00000000012dffce
1  opt             0x00000000012e04ca
2  libpthread.so.0 0x00007fc175ca21a0
3  opt             0x0000000000a844f4
4  opt             0x0000000000f784dd
llvm::MemoryDependenceAnalysis::getNonLocalPointerDepFromBB(llvm::PHITransAddr
const&, llvm::AliasAnalysis::Location const&, bool, llvm::BasicBlock*,
llvm::SmallVectorImpl<llvm::NonLocalDepResult>&,
llvm::DenseMap<llvm::BasicBlock*, llvm::Value*,
llvm::DenseMapInfo<llvm::BasicBlock*> >&, bool) + 2765
5  opt             0x0000000000f77954
llvm::MemoryDependenceAnalysis::getNonLocalPointerDependency(llvm::AliasAnalysis::Location
const&, bool, llvm::BasicBlock*,
llvm::SmallVectorImpl<llvm::NonLocalDepResult>&) + 260
6  opt             0x0000000000c7eff6
7  opt             0x0000000000c7aa99
8  opt             0x0000000000c79e37
9  opt             0x0000000000c79ad8
10 opt             0x0000000000c768a3
11 opt             0x0000000000c76680
12 opt             0x000000000125a10f
llvm::FPPassManager::runOnFunction(llvm::Function&) + 431
13 opt             0x000000000125a40d
llvm::FPPassManager::runOnModule(llvm::Module&) + 125
14 opt             0x000000000125a655
llvm::MPPassManager::runOnModule(llvm::Module&) + 485
15 opt             0x000000000125af7d llvm::PassManagerImpl::run(llvm::Module&)
+ 157
16 opt             0x000000000125b161 llvm::PassManager::run(llvm::Module&) +
33
17 opt             0x00000000005f52cb main + 6715
18 libc.so.6       0x00007fc174ef7725 __libc_start_main + 245
19 opt             0x00000000005e4139
Stack dump:
0.    Program arguments: opt -memdep -gvn -S 
1.    Running pass 'Function Pass Manager' on module '<stdin>'.
2.    Running pass 'Global Value Numbering' on function '@foo'

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