[LLVMbugs] [Bug 17630] New: clang-format: Assertion `PPLevelBranchCount[PPBranchLevel] == 0' failed on MipsJITInfo.cpp

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=17630

            Bug ID: 17630
           Summary: clang-format: Assertion
                    `PPLevelBranchCount[PPBranchLevel] == 0' failed on
                    MipsJITInfo.cpp
           Product: new-bugs
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: new bugs
          Assignee: unassignedbugs at nondot.org
          Reporter: daniel.sanders at imgtec.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

Steps to reproduce
==================

$ wget -O MipsJITInfo.cpp
'http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/Mips/MipsJITInfo.cpp?revision=187032&view=co'
$ clang-format MipsJITInfo.cpp

Actual behaviour
================

Crash. Output below:
clang-format:
/home/das/mips/MSA/llvm/src/llvm/tools/clang/lib/Format/UnwrappedLineParser.cpp:488:
void clang::format::UnwrappedLineParser::parsePPEndIf(): Assertion
`PPLevelBranchCount[PPBranchLevel] == 0' failed.
0  libLLVMSupport.so 0x00007f947a4ba6de llvm::sys::PrintStackTrace(_IO_FILE*) +
38
1  libLLVMSupport.so 0x00007f947a4ba965
2  libLLVMSupport.so 0x00007f947a4ba3a0
3  libpthread.so.0   0x00007f947a18acb0
4  libc.so.6         0x00007f9478c51425 gsignal + 53
5  libc.so.6         0x00007f9478c54b8b abort + 379
6  libc.so.6         0x00007f9478c4a0ee
7  libc.so.6         0x00007f9478c4a192
8  libclangFormat.so 0x00007f9479f5410e
clang::format::UnwrappedLineParser::parsePPEndIf() + 268
9  libclangFormat.so 0x00007f9479f53b71
clang::format::UnwrappedLineParser::parsePPDirective() + 367
10 libclangFormat.so 0x00007f9479f5693c
clang::format::UnwrappedLineParser::readToken() + 200
11 libclangFormat.so 0x00007f9479f5686e
clang::format::UnwrappedLineParser::nextToken() + 96
12 libclangFormat.so 0x00007f9479f54894
clang::format::UnwrappedLineParser::parseStructuralElement() + 860
13 libclangFormat.so 0x00007f9479f533a3
clang::format::UnwrappedLineParser::parseLevel(bool) + 345
14 libclangFormat.so 0x00007f9479f53877
clang::format::UnwrappedLineParser::parseBlock(bool, bool, bool) + 219
15 libclangFormat.so 0x00007f9479f547d0
clang::format::UnwrappedLineParser::parseStructuralElement() + 664
16 libclangFormat.so 0x00007f9479f533a3
clang::format::UnwrappedLineParser::parseLevel(bool) + 345
17 libclangFormat.so 0x00007f9479f53217
clang::format::UnwrappedLineParser::parseFile() + 97
18 libclangFormat.so 0x00007f9479f52f3b
clang::format::UnwrappedLineParser::parse() + 175
19 libclangFormat.so 0x00007f9479f365d6
20 libclangFormat.so 0x00007f9479f38892
clang::format::reformat(clang::format::FormatStyle const&, clang::Lexer&,
clang::SourceManager&, std::vector<clang::CharSourceRange,
std::allocator<clang::CharSourceRange> >) + 132
21 clang-format      0x000000000040b93a
22 clang-format      0x000000000040c1c4
23 libc.so.6         0x00007f9478c3c76d __libc_start_main + 237
24 clang-format      0x000000000040add9
Aborted (core dumped)

Tested with r192963.

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