Revert "Toolchain: Normalize dwarf, sjlj and seh eh"

This reverts rL319294.
The windows sanitizer does not like seh on x86.
Will re apply with None type for x86

llvm-svn: 319295

1 files changed, 3 insertions, 27 deletions

diff --git a/clang/lib/Driver/ToolChains/Clang.cpp b/clang/lib/Driver/ToolChains/Clang.cpp
index 1c90c6e9225..d96664cf0be 100644
--- a/clang/lib/Driver/ToolChains/Clang.cpp
+++ b/clang/lib/Driver/ToolChains/Clang.cpp
@@ -4166,33 +4166,9 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA,
     addExceptionArgs(Args, InputType, getToolChain(), KernelOrKext, Runtime,
                      CmdArgs);
 
-  // Handle exception personalities
-  Arg *A = Args.getLastArg(options::OPT_fsjlj_exceptions,
-                           options::OPT_fseh_exceptions,
-                           options::OPT_fdwarf_exceptions);
-  if (A) {
-    const Option &Opt = A->getOption();
-    if (Opt.matches(options::OPT_fsjlj_exceptions))
-      CmdArgs.push_back("-fsjlj-exceptions");
-    if (Opt.matches(options::OPT_fseh_exceptions))
-      CmdArgs.push_back("-fseh-exceptions");
-    if (Opt.matches(options::OPT_fdwarf_exceptions))
-      CmdArgs.push_back("-fdwarf-exceptions");
-  } else {
-    switch(getToolChain().GetExceptionModel(Args)) {
-      default:
-        break;
-      case llvm::ExceptionHandling::DwarfCFI:
-        CmdArgs.push_back("-fdwarf-exceptions");
-        break;
-      case llvm::ExceptionHandling::SjLj:
-        CmdArgs.push_back("-fsjlj-exceptions");
-        break;
-      case llvm::ExceptionHandling::WinEH:
-        CmdArgs.push_back("-fseh-exceptions");
-        break;
-    }
-  }
+  if (Args.hasArg(options::OPT_fsjlj_exceptions) ||
+      getToolChain().UseSjLjExceptions(Args))
+    CmdArgs.push_back("-fsjlj-exceptions");
 
   // C++ "sane" operator new.
   if (!Args.hasFlag(options::OPT_fassume_sane_operator_new,