Add asm->wasmified version of embenchen.

test/mjsunit/wasm/embenchen/copy.js

+// Modified embenchen to direct to asm-wasm.
+// Flags: --expose-wasm
+// TODO(mtrofin): Drop when verifier is fixed.
+// Flags: --noturbo-verify-allocation
+
 var EXPECTED_OUTPUT = 'sum:8930\n';
 var Module = {
   arguments: [1],
   print: function(x) {Module.printBuffer += x + '\n';},
   preRun: [function() {Module.printBuffer = ''}],
   postRun: [function() {
     assertEquals(EXPECTED_OUTPUT, Module.printBuffer);
   }],
 };
 // The Module object: Our interface to the outside world. We import
@@ skipping 5431 matching lines @@
 
 
 var Math_min = Math.min;
 function asmPrintInt(x, y) {
   Module.print('int ' + x + ',' + y);// + ' ' + new Error().stack);
 }
 function asmPrintFloat(x, y) {
   Module.print('float ' + x + ',' + y);// + ' ' + new Error().stack);
 }
 // EMSCRIPTEN_START_ASM
-var asm = (function(global, env, buffer) {
+var asm = _WASMEXP_.instantiateModuleFromAsm((function Module(global, env, buffer) {
   'use asm';
   var HEAP8 = new global.Int8Array(buffer);
   var HEAP16 = new global.Int16Array(buffer);
   var HEAP32 = new global.Int32Array(buffer);
   var HEAPU8 = new global.Uint8Array(buffer);
   var HEAPU16 = new global.Uint16Array(buffer);
   var HEAPU32 = new global.Uint32Array(buffer);
   var HEAPF32 = new global.Float32Array(buffer);
   var HEAPF64 = new global.Float64Array(buffer);
 
@@ skipping 295 matching lines @@
  tempRet0 = i1;
 }
 function stackSave() {
  return STACKTOP | 0;
 }
 
 // EMSCRIPTEN_END_FUNCS
 
 
   return { _strlen: _strlen, _memcpy: _memcpy, _main: _main, _memset: _memset, runPostSets: runPostSets, stackAlloc: stackAlloc, stackSave: stackSave, stackRestore: stackRestore, setThrew: setThrew, setTempRet0: setTempRet0, setTempRet1: setTempRet1, setTempRet2: setTempRet2, setTempRet3: setTempRet3, setTempRet4: setTempRet4, setTempRet5: setTempRet5, setTempRet6: setTempRet6, setTempRet7: setTempRet7, setTempRet8: setTempRet8, setTempRet9: setTempRet9 };
-})
+}).toString(),
 // EMSCRIPTEN_END_ASM
-({ "Math": Math, "Int8Array": Int8Array, "Int16Array": Int16Array, "Int32Array": Int32Array, "Uint8Array": Uint8Array, "Uint16Array": Uint16Array, "Uint32Array": Uint32Array, "Float32Array": Float32Array, "Float64Array": Float64Array }, { "abort": abort, "assert": assert, "asmPrintInt": asmPrintInt, "asmPrintFloat": asmPrintFloat, "min": Math_min, "_free": _free, "_emscripten_memcpy_big": _emscripten_memcpy_big, "_printf": _printf, "_send": _send, "_pwrite": _pwrite, "__reallyNegative": __reallyNegative, "_fwrite": _fwrite, "_malloc": _malloc, "_mkport": _mkport, "_fprintf": _fprintf, "___setErrNo": ___setErrNo, "__formatString": __formatString, "_fileno": _fileno, "_fflush": _fflush, "_write": _write, "STACKTOP": STACKTOP, "STACK_MAX": STACK_MAX, "tempDoublePtr": tempDoublePtr, "ABORT": ABORT, "NaN": NaN, "Infinity": Infinity }, buffer);
+{ "Math": Math, "Int8Array": Int8Array, "Int16Array": Int16Array, "Int32Array": Int32Array, "Uint8Array": Uint8Array, "Uint16Array": Uint16Array, "Uint32Array": Uint32Array, "Float32Array": Float32Array, "Float64Array": Float64Array, "abort": abort, "assert": assert, "asmPrintInt": asmPrintInt, "asmPrintFloat": asmPrintFloat, "min": Math_min, "_free": _free, "_emscripten_memcpy_big": _emscripten_memcpy_big, "_printf": _printf, "_send": _send, "_pwrite": _pwrite, "__reallyNegative": __reallyNegative, "_fwrite": _fwrite, "_malloc": _malloc, "_mkport": _mkport, "_fprintf": _fprintf, "___setErrNo": ___setErrNo, "__formatString": __formatString, "_fileno": _fileno, "_fflush": _fflush, "_write": _write, "STACKTOP": STACKTOP, "STACK_MAX": STACK_MAX, "tempDoublePtr": tempDoublePtr, "ABORT": ABORT, "NaN": NaN, "Infinity": Infinity }, buffer);

[aseemgarg, 2016/02/22 22:28:41]

why are we passing stdlib stuff as ffi?

[bradn, 2016/02/23 05:56:02]

Some of this is temporary, some is a quirk of embenchen.
I have another outstanding CL that stacks on the stdlib one to route stdlib
through to external functions prefixed with an underscore (as there are a few
places where that was already being done in embenchen).
I'll chat with ben tomorrow about doing opcodes vs ffi, as if we keep the ffi,
we'll have to have a second object for it.

NaN and Infinity are routed through ffi in embenchen which is another mismatch
with the spec.

+asm.__init__();
 var _strlen = Module["_strlen"] = asm["_strlen"];
 var _memcpy = Module["_memcpy"] = asm["_memcpy"];
 var _main = Module["_main"] = asm["_main"];
 var _memset = Module["_memset"] = asm["_memset"];
 var runPostSets = Module["runPostSets"] = asm["runPostSets"];
 
 Runtime.stackAlloc = function(size) { return asm['stackAlloc'](size) };
 Runtime.stackSave = function() { return asm['stackSave']() };
 Runtime.stackRestore = function(top) { asm['stackRestore'](top) };
 
@@ skipping 186 matching lines @@
 }
 
 // shouldRunNow refers to calling main(), not run().
 var shouldRunNow = true;
 if (Module['noInitialRun']) {
   shouldRunNow = false;
 }
 
 
 run([].concat(Module["arguments"]));