Split catch IRgen into ItaniumCXXABI and MicrosoftCXXABI

Use llvm.eh.begincatch for Microsoft-style catches.

This moves lots of CGException code into ItaniumCXXABI. Sorry for the
blame pain.

llvm-svn: 231105

1 files changed, 7 insertions, 0 deletions

diff --git a/clang/lib/CodeGen/CGCXXABI.cpp b/clang/lib/CodeGen/CGCXXABI.cpp
index d31331de686..cb7e6dfca1c 100644
--- a/clang/lib/CodeGen/CGCXXABI.cpp
+++ b/clang/lib/CodeGen/CGCXXABI.cpp
@@ -302,3 +302,10 @@ CGCXXABI::EmitCtorCompleteObjectHandler(CodeGenFunction &CGF,
 bool CGCXXABI::NeedsVTTParameter(GlobalDecl GD) {
   return false;
 }
+
+llvm::CallInst *
+CGCXXABI::emitTerminateForUnexpectedException(CodeGenFunction &CGF,
+                                              llvm::Value *Exn) {
+  // Just call std::terminate and ignore the violating exception.
+  return CGF.EmitNounwindRuntimeCall(CGF.CGM.getTerminateFn());
+}