Extended Description
clang-tidy-10 as of 2020-01-31 crashes when using readability-else-after-return on the following sample.
Command line used to reproduce:
$ clang-tidy test.cpp --checks='readability-else*' -- /usr/bin/clang++ -isystem boost_1_71_0/include test.cpp
==== test.cpp ======
#include
class Base {
};
#include "boost/range/irange.hpp"
std::unique_ptr makeBase() {
std::unique_ptr op;
if (auto* x = dynamic_cast<Base*>(op.get())) {
return op;
}
else if (auto* y = dynamic_cast<Base*>(op.get())) {
for (auto i : boost::irange(0, 4)) {
}
return op;
}
return op;
}
Expected behavior is a warning on line 10.
Actual behaviour is the following stack dump
================
Stack dump:
0. Program arguments: clang-tidy Instruction.cpp --checks=readability-else* -- /usr/bin/clang++ -isystem NPU1T-Tools-Linux-clang-10.0/build/external_boost/boost_x/include Instruction.cpp 1. parser at end of file
/usr/lib/x86_64-linux-gnu/libLLVM-10.so.1(_ZN4llvm3sys15PrintStackTraceERNS_11raw_ostreamE+0x1f)[0x7 fe3b2dcc72f]
/usr/lib/x86_64-linux-gnu/libLLVM-10.so.1(_ZN4llvm3sys17RunSignalHandlersEv+0x50)[0x7fe3b2dca9f0] /usr/lib/x86_64-linux-gnu/libLLVM-10.so.1(+0x976cf5)[0x7fe3b2dcccf5]
/lib/x86_64-linux-gnu/libpthread.so.0(+0x12890)[0x7fe3b930c890]
/usr/lib/x86_64-linux-gnu/libclang-cpp.so.10(_ZN5clang4Stmt8childrenEv+0xf)[0x7fe3b768f7cf]
clang-tidy[0x81911d]
clang-tidy[0x819180]
clang-tidy[0x819180]
clang-tidy[0x819180]
clang-tidy[0x817b08]
/usr/lib/x86_64-linux-gnu/libclang-cpp.so.10(+0xd1aa41)[0x7fe3b7859a41]
/usr/lib/x86_64-linux-gnu/libclang-cpp.so.10(_ZN5clang12ast_matchers8internal21BoundNodesTreeBuilder12visitMatchesEPNS2_7VisitorE+0xcc)[0x7fe3b787400c]
/usr/lib/x86_64-linux-gnu/libclang-cpp.so.10(+0xd1a2bc)[0x7fe3b78592bc]
/usr/lib/x86_64-linux-gnu/libclang-cpp.so.10(+0xd34e49)[0x7fe3b7873e49]
/usr/lib/x86_64-linux-gnu/libclang-cpp.so.10(+0xd1c7e4)[0x7fe3b785b7e4]
/usr/lib/x86_64-linux-gnu/libclang-cpp.so.10(+0xd21937)[0x7fe3b7860937]
/usr/lib/x86_64-linux-gnu/libclang-cpp.so.10(+0xd1e65b)[0x7fe3b785d65b]
/usr/lib/x86_64-linux-gnu/libclang-cpp.so.10(_ZN5clang12ast_matchers11MatchFinder8matchASTERNS_10ASTContextE+0x339)[0x7fe3b783f2e9]
/usr/lib/x86_64-linux-gnu/libclang-cpp.so.10(_ZN5clang17MultiplexConsumer21HandleTranslationUnitERNS_10ASTContextE+0x2c)[0x7fe3b87f885c]
/usr/lib/x86_64-linux-gnu/libclang-cpp.so.10(_ZN5clang8ParseASTERNS_4SemaEbb+0x283)[0x7fe3b730dca3]
/usr/lib/x86_64-linux-gnu/libclang-cpp.so.10(_ZN5clang14FrontendAction7ExecuteEv+0x48)[0x7fe3b87c3d48]
/usr/lib/x86_64-linux-gnu/libclang-cpp.so.10(_ZN5clang16CompilerInstance13ExecuteActionERNS_14FrontendActionE+0x601)[0x7fe3b877cd91]
/usr/lib/x86_64-linux-gnu/libclang-cpp.so.10(_ZN5clang7tooling21FrontendActionFactory13runInvocationESt10shared_ptrINS_18CompilerInvocationEEPNS_11FileManagerES2_INS_22PCHContainerOperationsEEPNS_18DiagnosticConsumerE+0x19c)[0x7fe3b891758c]
clang-tidy[0x456316]
/usr/lib/x86_64-linux-gnu/libclang-cpp.so.10(_ZN5clang7tooling14ToolInvocation13runInvocationEPKcPNS_6driver11CompilationESt10shared_ptrINS_18CompilerInvocationEES7_INS_22PCHContainerOperationsEE+0x106)[0x7fe3b89172f6]
/usr/lib/x86_64-linux-gnu/libclang-cpp.so.10(_ZN5clang7tooling14ToolInvocation3runEv+0xa5a)[0x7fe3b891679a]
/usr/lib/x86_64-linux-gnu/libclang-cpp.so.10(_ZN5clang7tooling9ClangTool3runEPNS0_10ToolActionE+0xb8a)[0x7fe3b891898a]
clang-tidy[0x452ff7]
clang-tidy[0x450043]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xe7)[0x7fe3b1747b97]
clang-tidy[0x44e62a]
fish: 'clang-tidy Instruction.cpp --ch…' terminated by signal SIGSEGV (Address boundary error)
