clang -cc1: Add -fsjlj-exceptions, which requires far too much button pushing.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@95785 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/CompilerInvocation.cpp b/lib/Frontend/CompilerInvocation.cpp
index 35cfee8..2a63cda 100644
--- a/lib/Frontend/CompilerInvocation.cpp
+++ b/lib/Frontend/CompilerInvocation.cpp
@@ -476,6 +476,8 @@
     Res.push_back("-faltivec");
   if (Opts.Exceptions)
     Res.push_back("-fexceptions");
+  if (Opts.SjLjExceptions)
+    Res.push_back("-fsjlj-exceptions");
   if (!Opts.RTTI)
     Res.push_back("-fno-rtti");
   if (!Opts.NeXTRuntime)
@@ -1189,6 +1191,7 @@
   Opts.CatchUndefined = Args.hasArg(OPT_fcatch_undefined_behavior);
   Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls);
   Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags);
+  Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions);
   Opts.Static = Args.hasArg(OPT_static_define);
   Opts.OptimizeSize = 0;
 
diff --git a/lib/Frontend/PCHReader.cpp b/lib/Frontend/PCHReader.cpp
index 9ab3b7a..655d59f 100644
--- a/lib/Frontend/PCHReader.cpp
+++ b/lib/Frontend/PCHReader.cpp
@@ -79,6 +79,7 @@
                           diag::warn_pch_lax_vector_conversions);
   PARSE_LANGOPT_IMPORTANT(AltiVec, diag::warn_pch_altivec);
   PARSE_LANGOPT_IMPORTANT(Exceptions, diag::warn_pch_exceptions);
+  PARSE_LANGOPT_IMPORTANT(SjLjExceptions, diag::warn_pch_sjlj_exceptions);
   PARSE_LANGOPT_IMPORTANT(NeXTRuntime, diag::warn_pch_objc_runtime);
   PARSE_LANGOPT_IMPORTANT(Freestanding, diag::warn_pch_freestanding);
   PARSE_LANGOPT_IMPORTANT(NoBuiltin, diag::warn_pch_builtins);
@@ -1747,6 +1748,7 @@
     PARSE_LANGOPT(LaxVectorConversions);
     PARSE_LANGOPT(AltiVec);
     PARSE_LANGOPT(Exceptions);
+    PARSE_LANGOPT(SjLjExceptions);
     PARSE_LANGOPT(NeXTRuntime);
     PARSE_LANGOPT(Freestanding);
     PARSE_LANGOPT(NoBuiltin);
diff --git a/lib/Frontend/PCHWriter.cpp b/lib/Frontend/PCHWriter.cpp
index 45d9b1b..c7e6058 100644
--- a/lib/Frontend/PCHWriter.cpp
+++ b/lib/Frontend/PCHWriter.cpp
@@ -758,6 +758,7 @@
   Record.push_back(LangOpts.LaxVectorConversions);
   Record.push_back(LangOpts.AltiVec);
   Record.push_back(LangOpts.Exceptions);  // Support exception handling.
+  Record.push_back(LangOpts.SjLjExceptions);
 
   Record.push_back(LangOpts.NeXTRuntime); // Use NeXT runtime.
   Record.push_back(LangOpts.Freestanding); // Freestanding implementation