[V8] Implement SIMD Boolean vector types to allow mask registers.

src/wasm/function-body-decoder.cc

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/signature.h"
 
 #include "src/base/platform/elapsed-timer.h"
 #include "src/bit-vector.h"
 #include "src/flags.h"
 #include "src/handles.h"
@@ skipping 197 matching lines @@
           break;
         case kLocalF32:
           type = kWasmF32;
           break;
         case kLocalF64:
           type = kWasmF64;
           break;
         case kLocalS128:
           type = kWasmS128;
           break;
+        case kLocalS4:
+          type = kWasmS4;
+          break;
+        case kLocalS8:
+          type = kWasmS8;
+          break;
+        case kLocalS16:
+          type = kWasmS16;
+          break;
         default:
           decoder->error(decoder->pc() - 1, "invalid local type");
           return false;
       }
       type_list->insert(type_list->end(), count, type);
     }
     DCHECK(decoder->ok());
     return true;
   }
 
@@ skipping 1901 matching lines @@
 BitVector* AnalyzeLoopAssignmentForTesting(Zone* zone, size_t num_locals,
                                            const byte* start, const byte* end) {
   Decoder decoder(start, end);
   return WasmDecoder::AnalyzeLoopAssignment(&decoder, start,
                                             static_cast<int>(num_locals), zone);
 }
 
 }  // namespace wasm
 }  // namespace internal
 }  // namespace v8