Implement a really simple DwarfSjLjException.
llvm-svn: 130947
diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfSjLjException.cpp b/llvm/lib/CodeGen/AsmPrinter/DwarfSjLjException.cpp
new file mode 100644
index 0000000..4718d71
--- /dev/null
+++ b/llvm/lib/CodeGen/AsmPrinter/DwarfSjLjException.cpp
@@ -0,0 +1,46 @@
+//===-- CodeGen/AsmPrinter/DwarfTableException.cpp - Dwarf Exception Impl --==//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file is a simple implementation of DwarfException that just produces
+// the exception table for use with SjLj.
+//
+//===----------------------------------------------------------------------===//
+
+#include "DwarfException.h"
+#include "llvm/CodeGen/MachineLocation.h"
+#include "llvm/CodeGen/MachineModuleInfo.h"
+using namespace llvm;
+
+DwarfSjLjException::DwarfSjLjException(AsmPrinter *A) : DwarfException(A) {
+}
+
+DwarfSjLjException::~DwarfSjLjException() {}
+
+/// EndModule - Emit all exception information that should come after the
+/// content.
+void DwarfSjLjException::EndModule() {
+}
+
+/// BeginFunction - Gather pre-function exception information. Assumes it's
+/// being emitted immediately after the function entry point.
+void DwarfSjLjException::BeginFunction(const MachineFunction *MF) {
+}
+
+/// EndFunction - Gather and emit post-function exception information.
+///
+void DwarfSjLjException::EndFunction() {
+ // Record if this personality index uses a landing pad.
+ bool HasLandingPad = !MMI->getLandingPads().empty();
+
+ // Map all labels and get rid of any dead landing pads.
+ MMI->TidyLandingPads();
+
+ if (HasLandingPad)
+ EmitExceptionTable();
+}