Initial Subzero WASM prototype.

src/WasmTranslator.h

Index: src/WasmTranslator.h
diff --git a/src/WasmTranslator.h b/src/WasmTranslator.h
new file mode 100644
index 0000000000000000000000000000000000000000..a3e364172e44def2d96d03360a71695a2db4c815
--- /dev/null
+++ b/src/WasmTranslator.h
@@ -0,0 +1,42 @@
+#pragma once

[JF, 2016/03/28 18:17:14]

Copyright notice for the file.

Also, pragma once? Include guards are standard.

[Eric Holk, 2016/03/29 19:54:12]

Done.

+
+#include "IceGlobalContext.h"
+#include "IceTranslator.h"
+
+#include "llvm/Support/StreamingMemoryObject.h"
+
+namespace v8::internal {

[John, 2016/03/28 18:44:10]

we tend to do

namespace v8 {
namespace internal {

[John, 2016/03/28 18:44:10]

I would just #include the files defining these...

[Eric Holk, 2016/03/29 19:54:12]

Done.

[Eric Holk, 2016/03/29 19:54:12]

I decided to keep it as is, at least for now. The reason is that it allows us to
build without having the V8 source code available.

+  class Zone;

[John, 2016/03/28 18:44:10]

no spaces? make sure clang-format is happy here.

[Eric Holk, 2016/03/29 19:54:12]

This was what `make format` did.

+  namespace wasm {
+  class FunctionEnv;
+  }

[John, 2016/03/28 18:44:10]

// end  of namespace wasm

+}

[John, 2016/03/28 18:44:10]

// end of namespace v8::internal

+
+namespace Ice {
+
+class WasmTranslator : public Translator {
+  WasmTranslator() = delete;
+  WasmTranslator(const WasmTranslator &) = delete;
+  WasmTranslator &operator=(const WasmTranslator &) = delete;
+
+  template <typename F = std::function<void(Ostream &)>> void log(F Fn) {
+    if (BuildDefs::dump() && (Ctx->getFlags().getVerbose() & IceV_Wasm)) {
+      Fn(Ctx->getStrDump());
+      Ctx->getStrDump().flush();
+    }
+  }
+
+public:
+  explicit WasmTranslator(GlobalContext *Ctx) : Translator(Ctx) {}
+  ~WasmTranslator() override = default;
+
+  void translate(const std::string &IRFilename,
+                 std::unique_ptr<llvm::DataStreamer> &&InputStream);

[John, 2016/03/28 18:44:10]

std::unique_ptr<> InputStream (i.e., no r-value reference)

[Eric Holk, 2016/03/29 19:54:12]

Done.

+
+  std::unique_ptr<Cfg> translateFunction(v8::internal::Zone *zone,
+                                         v8::internal::wasm::FunctionEnv *env,
+                                         const uint8_t *base,
+                                         const uint8_t *start,
+                                         const uint8_t *end);
+};
+}

[John, 2016/03/28 18:44:10]

// end of namespace Ice