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0031628: Configuration - Visual Studio 2019 compiler hangs on building 32-bit target

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The workaround for a bug occurred in MS Visual Studio 2019 / Win32 / Release configuration with disabled Whole Program Optimization is implemented.
The problem was at the line "std::stable_sort(aPairList.begin(), aPairList.end(), BRepExtrema_CheckPair_Comparator);" of BRepExtrema_DistShapeShape.cxx source file,
and linked to NCollection_Vector::Differ() method.
This workaround was suggested by MSFT team.
This commit is contained in:
tiv 2020-06-26 10:32:43 +03:00 committed by bugmaster
parent 99178701db
commit 0b55d29b6a
1 changed files with 9 additions and 0 deletions
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9
src/NCollection/NCollection_Vector.hxx
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@ -91,6 +91,15 @@ public:
offsetV (static_cast<int>(theOffset));
}
// Workaround for a bug (endless compilation) occurred in MS Visual Studio 2019 / Win32 / Release configuration
// with DISABLED Whole Program Optimization (as it is by default in OCCT). The problem is
// at the line std::stable_sort(aPairList.begin(), aPairList.end(), BRepExtrema_CheckPair_Comparator);
// of BRepExtrema_DistShapeShape.cxx source file.
// To enable Whole Program Optimization use command line keys: /GL for compiler and /LTCG for linker.
// Remove this workaround after the bug in VS2019 will be fixed (see OCCT bug #0031628).
#if defined (_MSC_VER) && (_MSC_VER >= 1920) && !defined (_WIN64) && !defined (_DEBUG)
__declspec(noinline) __declspec(deprecated("TODO remove this workaround for VS2019 compiler hanging bug"))
#endif
//! Difference operator.
ptrdiff_t Differ (const Iterator& theOther) const
{