diff options
Diffstat (limited to 'clang/lib/Driver/Tools.cpp')
| -rw-r--r-- | clang/lib/Driver/Tools.cpp | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/clang/lib/Driver/Tools.cpp b/clang/lib/Driver/Tools.cpp index 9c64da58c27..fd647a484e6 100644 --- a/clang/lib/Driver/Tools.cpp +++ b/clang/lib/Driver/Tools.cpp @@ -5786,8 +5786,7 @@ struct EHFlags { /// - s: Cleanup after "synchronous" exceptions, aka C++ exceptions. /// - a: Cleanup after "asynchronous" exceptions, aka structured exceptions. /// The 'a' modifier is unimplemented and fundamentally hard in LLVM IR. -/// - c: Assume that extern "C" functions are implicitly noexcept. This -/// modifier is an optimization, so we ignore it for now. +/// - c: Assume that extern "C" functions are implicitly nounwind. /// The default is /EHs-c-, meaning cleanups are disabled. static EHFlags parseClangCLEHFlags(const Driver &D, const ArgList &Args) { EHFlags EH; @@ -5897,10 +5896,11 @@ void Clang::AddClangCLArgs(const ArgList &Args, ArgStringList &CmdArgs, const Driver &D = getToolChain().getDriver(); EHFlags EH = parseClangCLEHFlags(D, Args); - // FIXME: Do something with NoExceptC. if (EH.Synch || EH.Asynch) { CmdArgs.push_back("-fcxx-exceptions"); CmdArgs.push_back("-fexceptions"); + if (EH.NoUnwindC) + CmdArgs.push_back("-fexternc-nounwind"); } // /EP should expand to -E -P. |
