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[clang-cl] Make /EHs turn on C++ EH once again 

C++ exceptions are still off by default, which is similar to how C++
cleanups are off by default in MSVC.

If you use clang instead of clang-cl, exceptions are also still off by
default. In the future, when C++ EH is proven to be stable, we may flip
the default for that driver to be consistent with other platforms.

llvm-svn: 249704
This commit is contained in:
Reid Kleckner 2015-10-08 17:29:07 +00:00
parent ad60be9bdc
commit b6776e0d07
2 changed files with 6 additions and 12 deletions
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4
clang/lib/Driver/Tools.cpp
View File

@ -5392,10 +5392,6 @@ static EHFlags parseClangCLEHFlags(const Driver &D, const ArgList &Args) {
}
}
// FIXME: Disable C++ EH completely, until it becomes more reliable. Users
// can use -Xclang to manually enable C++ EH until then.
EH = EHFlags();
return EH;
}

14
clang/test/Driver/cl-eh.cpp
View File

@ -1,11 +1,9 @@
// Note: %s must be preceded by --, otherwise it may be interpreted as a
// command-line option, e.g. on Mac where %s is commonly under /Users.
// FIXME: When C++ EH works, we can make this flag turn things back on.
// RUN: %clang_cl /c /EHsc -### -- %s 2>&1 | FileCheck -check-prefix=EHsc %s
// EHsc-NOT: "-fcxx-exceptions"
// EHsc-NOT: "-fexceptions"
// EHsc: "-fcxx-exceptions"
// EHsc: "-fexceptions"
// RUN: %clang_cl /c /EHs-c- -### -- %s 2>&1 | FileCheck -check-prefix=EHs_c_ %s
// EHs_c_-NOT: "-fcxx-exceptions"
@ -16,12 +14,12 @@
// EHs_EHc_-NOT: "-fexceptions"
// RUN: %clang_cl /c /EHs- /EHs -### -- %s 2>&1 | FileCheck -check-prefix=EHs_EHs %s
// EHs_EHs-NOT: "-fcxx-exceptions"
// EHs_EHs-NOT: "-fexceptions"
// EHs_EHs: "-fcxx-exceptions"
// EHs_EHs: "-fexceptions"
// RUN: %clang_cl /c /EHs- /EHsa -### -- %s 2>&1 | FileCheck -check-prefix=EHs_EHa %s
// EHs_EHa-NOT: "-fcxx-exceptions"
// EHs_EHa-NOT: "-fexceptions"
// EHs_EHa: "-fcxx-exceptions"
// EHs_EHa: "-fexceptions"
// RUN: %clang_cl /c /EHinvalid -### -- %s 2>&1 | FileCheck -check-prefix=EHinvalid %s
// EHinvalid: error: invalid value 'invalid' in '/EH'