1 files changed, 100 insertions, 0 deletions
diff --git a/contrib/llvm/lib/Target/WebAssembly/MCTargetDesc/WebAssemblyMCCodeEmitter.cpp b/contrib/llvm/lib/Target/WebAssembly/MCTargetDesc/WebAssemblyMCCodeEmitter.cpp
new file mode 100644
index 0000000..7c6c79e
--- /dev/null
+++ b/contrib/llvm/lib/Target/WebAssembly/MCTargetDesc/WebAssemblyMCCodeEmitter.cpp
@@ -0,0 +1,100 @@
+//=- WebAssemblyMCCodeEmitter.cpp - Convert WebAssembly code to machine code -//
+//
+//                     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 implements the WebAssemblyMCCodeEmitter class.
+///
+//===----------------------------------------------------------------------===//
+
+#include "MCTargetDesc/WebAssemblyMCTargetDesc.h"
+#include "llvm/ADT/Statistic.h"
+#include "llvm/MC/MCCodeEmitter.h"
+#include "llvm/MC/MCFixup.h"
+#include "llvm/MC/MCInst.h"
+#include "llvm/MC/MCInstrInfo.h"
+#include "llvm/MC/MCRegisterInfo.h"
+#include "llvm/MC/MCSubtargetInfo.h"
+#include "llvm/MC/MCSymbol.h"
+#include "llvm/Support/raw_ostream.h"
+using namespace llvm;
+
+#define DEBUG_TYPE "mccodeemitter"
+
+namespace {
+class WebAssemblyMCCodeEmitter final : public MCCodeEmitter {
+  const MCRegisterInfo &MRI;
+
+public:
+  WebAssemblyMCCodeEmitter(const MCInstrInfo &, const MCRegisterInfo &mri,
+                           MCContext &)
+      : MRI(mri) {}
+
+  ~WebAssemblyMCCodeEmitter() override {}
+
+  /// TableGen'erated function for getting the binary encoding for an
+  /// instruction.
+  uint64_t getBinaryCodeForInstr(const MCInst &MI,
+                                 SmallVectorImpl<MCFixup> &Fixups,
+                                 const MCSubtargetInfo &STI) const;
+
+  /// Return binary encoding of operand. If the machine operand requires
+  /// relocation, record the relocation and return zero.
+  unsigned getMachineOpValue(const MCInst &MI, const MCOperand &MO,
+                             SmallVectorImpl<MCFixup> &Fixups,
+                             const MCSubtargetInfo &STI) const;
+
+  uint64_t getMemoryOpValue(const MCInst &MI, unsigned Op,
+                            SmallVectorImpl<MCFixup> &Fixups,
+                            const MCSubtargetInfo &STI) const;
+
+  void encodeInstruction(const MCInst &MI, raw_ostream &OS,
+                         SmallVectorImpl<MCFixup> &Fixups,
+                         const MCSubtargetInfo &STI) const override;
+};
+} // end anonymous namespace
+
+MCCodeEmitter *llvm::createWebAssemblyMCCodeEmitter(const MCInstrInfo &MCII,
+                                                    const MCRegisterInfo &MRI,
+                                                    MCContext &Ctx) {
+  return new WebAssemblyMCCodeEmitter(MCII, MRI, Ctx);
+}
+
+unsigned WebAssemblyMCCodeEmitter::getMachineOpValue(
+    const MCInst &MI, const MCOperand &MO, SmallVectorImpl<MCFixup> &Fixups,
+    const MCSubtargetInfo &STI) const {
+  if (MO.isReg())
+    return MRI.getEncodingValue(MO.getReg());
+  if (MO.isImm())
+    return static_cast<unsigned>(MO.getImm());
+
+  assert(MO.isExpr());
+
+  assert(MO.getExpr()->getKind() == MCExpr::SymbolRef);
+
+  assert(false && "FIXME: not implemented yet");
+
+  return 0;
+}
+
+void WebAssemblyMCCodeEmitter::encodeInstruction(
+    const MCInst &MI, raw_ostream &OS, SmallVectorImpl<MCFixup> &Fixups,
+    const MCSubtargetInfo &STI) const {
+  assert(false && "FIXME: not implemented yet");
+}
+
+// Encode WebAssembly Memory Operand
+uint64_t
+WebAssemblyMCCodeEmitter::getMemoryOpValue(const MCInst &MI, unsigned Op,
+                                           SmallVectorImpl<MCFixup> &Fixups,
+                                           const MCSubtargetInfo &STI) const {
+  assert(false && "FIXME: not implemented yet");
+  return 0;
+}
+
+#include "WebAssemblyGenMCCodeEmitter.inc"