[llvm-bugs] [Bug 26864] New: segmentation fault of -partial-inliner

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=26864

            Bug ID: 26864
           Summary: segmentation fault of -partial-inliner
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: Interprocedural Optimizations
          Assignee: unassignedbugs at nondot.org
          Reporter: chengniansun at gmail.com
                CC: llvm-bugs at lists.llvm.org
    Classification: Unclassified

Created attachment 15996
  --> https://llvm.org/bugs/attachment.cgi?id=15996&action=edit
bug triggering test program

The attached bc file causes a segmentation fault in -partial-inliner.


$: opt bugpoint-reduced-simplified.bc -partial-inliner -o temp.bc
0  opt             0x0000000001785db5
llvm::sys::PrintStackTrace(llvm::raw_ostream&) + 37
1  opt             0x0000000001783b66 llvm::sys::RunSignalHandlers() + 54
2  opt             0x0000000001783d91
3  libpthread.so.0 0x00007fbf9d5b5340
4  opt             0x00000000017b0d6f llvm::CodeExtractor::splitReturnBlocks()
+ 255
5  opt             0x00000000017b4266 llvm::CodeExtractor::extractCodeRegion()
+ 246
6  opt             0x000000000148344c
7  opt             0x0000000001484472
8  opt             0x00000000013e412f
llvm::legacy::PassManagerImpl::run(llvm::Module&) + 751
9  opt             0x000000000069621d main + 7373
10 libc.so.6       0x00007fbf9c7beec5 __libc_start_main + 245
11 opt             0x00000000006d5f38
Stack dump:
0.      Program arguments: opt bugpoint-reduced-simplified.bc -partial-inliner
-o temp.bc 
1.      Running pass 'Partial Inliner' on module
'bugpoint-reduced-simplified.bc'.
Segmentation fault (core dumped)
$: 
$: clang-trunk -v
clang version 3.9.0 (trunk 262800)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /usr/bin
Found candidate GCC installation: /usr/bin/../lib/gcc/i686-linux-gnu/5.3.0
Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/4.8
Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/4.8.5
Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/4.9
Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/4.9.3
Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/5.3.0
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/5.3.0
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.8
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.8.5
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.9
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.9.3
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/5.3.0
Selected GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/4.9
Candidate multilib: .;@m64
Candidate multilib: 32;@m32
Candidate multilib: x32;@mx32
Selected multilib: .;@m64
$: 
$:

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