1 files changed, 42 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/AsmPrinter/WasmException.h b/llvm/lib/CodeGen/AsmPrinter/WasmException.h
new file mode 100644
index 00000000000..09a9a25ce8d
--- /dev/null
+++ b/llvm/lib/CodeGen/AsmPrinter/WasmException.h
@@ -0,0 +1,42 @@
+//===-- WasmException.h - Wasm Exception Framework -------------*- C++ -*--===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file contains support for writing WebAssembly exception info into asm
+// files.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIB_CODEGEN_ASMPRINTER_WASMEXCEPTION_H
+#define LLVM_LIB_CODEGEN_ASMPRINTER_WASMEXCEPTION_H
+
+#include "EHStreamer.h"
+#include "llvm/CodeGen/AsmPrinter.h"
+
+namespace llvm {
+
+class LLVM_LIBRARY_VISIBILITY WasmException : public EHStreamer {
+public:
+  WasmException(AsmPrinter *A) : EHStreamer(A) {}
+
+  void endModule() override {}
+  void beginFunction(const MachineFunction *MF) override {}
+  virtual void markFunctionEnd() override;
+  void endFunction(const MachineFunction *MF) override;
+
+protected:
+  // Compute the call site table for wasm EH.
+  void computeCallSiteTable(
+      SmallVectorImpl<CallSiteEntry> &CallSites,
+      const SmallVectorImpl<const LandingPadInfo *> &LandingPads,
+      const SmallVectorImpl<unsigned> &FirstActions) override;
+};
+
+} // End of namespace llvm
+
+#endif