https://bugs.llvm.org/show_bug.cgi?id=41617
Bug ID: 41617
Summary: clang-cl 8.0.0 crashes with OpenMP construct
Product: OpenMP
Version: unspecified
Hardware: PC
OS: Windows NT
Status: NEW
Severity: normal
Priority: P
Component: Runtime Library
Assignee: unassignedb...@nondot.org
Reporter: powerch...@web.de
CC: llvm-bugs@lists.llvm.org
Created attachment 21827
--> https://bugs.llvm.org/attachment.cgi?id=21827&action=edit
Preprocessed source and associated run script
clang-cl crashes with the following code:
void f()
{
int e;
auto g = [e] (auto) // a concrete parameter type (like 'int') instead of
'auto' is OK
{
#pragma omp critical
e;
};
#pragma omp parallel for
for (int i = 0; i < 42; ++i)
g(i);
}
Please note that it does compile with a concrete parameter type for the lambda
instead of the generic auto.
Compiled with "-Xclang -fopenmp /std:c++latest" in VS2019 using LLVM_v142
toolset from llvm-utils.
The error report is:
1>clang-cl: error: clang frontend command failed due to signal (use -v to see
invocation)
1>clang version 8.0.0 (tags/RELEASE_800/final)
1>Target: i386-pc-windows-msvc
1>Thread model: posix
1>InstalledDir: C:\Program Files\LLVM\bin
1>clang-cl: note: diagnostic msg: PLEASE submit a bug report to
https://bugs.llvm.org/ and include the crash backtrace, preprocessed source,
and associated run script.
1>clang-cl: note: diagnostic msg:
1>********************
1>PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
1>Preprocessed source(s) and associated run script(s) are located at:
1>clang-cl: note: diagnostic msg:
C:\Users\x\AppData\Local\Temp\Source-1b17c7.cpp
1>clang-cl: note: diagnostic msg:
C:\Users\x\AppData\Local\Temp\Source-1b17c7.sh
1>clang-cl: note: diagnostic msg:
1>********************
1>C:\Program Files (x86)\Microsoft Visual
Studio\2019\Preview\MSBuild\Microsoft\VC\v160\Microsoft.CppCommon.targets(423,5):
error MSB6006: "C:\Program Files\LLVM\bin\clang-cl.exe" exited with code 1.
1>Done building project "Project2.vcxproj" -- FAILED.
The code is a simplified stripped down version of real production code. I know
that it does effectively nothing, I just wanted it to be as simple as possible.
It should compile nonetheless.
It also does not compile on godbolt's clang (https://godbolt.org/z/zi0aVI).
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