1 files changed, 49 insertions, 0 deletions
diff --git a/lib/Target/WebAssembly/WebAssemblyISelLowering.h b/lib/Target/WebAssembly/WebAssemblyISelLowering.h
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index 00000000000..efd60a7bacd
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+++ b/lib/Target/WebAssembly/WebAssemblyISelLowering.h
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+//- WebAssemblyISelLowering.h - WebAssembly DAG Lowering Interface -*- C++ -*-//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file
+/// \brief This file defines the interfaces that WebAssembly uses to lower LLVM
+/// code into a selection DAG.
+///
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIB_TARGET_WEBASSEMBLY_WEBASSEMBLYISELLOWERING_H
+#define LLVM_LIB_TARGET_WEBASSEMBLY_WEBASSEMBLYISELLOWERING_H
+
+#include "llvm/Target/TargetLowering.h"
+
+namespace llvm {
+
+namespace WebAssemblyISD {
+
+enum {
+  FIRST_NUMBER = ISD::BUILTIN_OP_END,
+
+  // add memory opcodes starting at ISD::FIRST_TARGET_MEMORY_OPCODE here...
+};
+
+} // end namespace WebAssemblyISD
+
+class WebAssemblySubtarget;
+class WebAssemblyTargetMachine;
+
+class WebAssemblyTargetLowering final : public TargetLowering {
+public:
+  WebAssemblyTargetLowering(const TargetMachine &TM,
+                            const WebAssemblySubtarget &STI);
+
+private:
+  /// Keep a pointer to the WebAssemblySubtarget around so that we can make the
+  /// right decision when generating code for different targets.
+  const WebAssemblySubtarget *Subtarget;
+};
+
+} // end namespace llvm
+
+#endif