[WASM] Eliminate SIMD boolean vector types.

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 210 matching lines @@
           break;
         case kLocalF32:
           type = kWasmF32;
           break;
         case kLocalF64:
           type = kWasmF64;
           break;
         case kLocalS128:
           type = kWasmS128;
           break;
-        case kLocalS1x4:
-          type = kWasmS1x4;
-          break;
-        case kLocalS1x8:
-          type = kWasmS1x8;
-          break;
-        case kLocalS1x16:
-          type = kWasmS1x16;
-          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 504 matching lines @@
       case kWasmI32:
         return builder_->Int32Constant(0);
       case kWasmI64:
         return builder_->Int64Constant(0);
       case kWasmF32:
         return builder_->Float32Constant(0);
       case kWasmF64:
         return builder_->Float64Constant(0);
       case kWasmS128:
         return builder_->S128Zero();
-      case kWasmS1x4:
-        return builder_->S1x4Zero();
-      case kWasmS1x8:
-        return builder_->S1x8Zero();
-      case kWasmS1x16:
-        return builder_->S1x16Zero();
       default:
         UNREACHABLE();
     }
   }
 
   char* indentation() {
     static const int kMaxIndent = 64;
     static char bytes[kMaxIndent + 1];
     for (int i = 0; i < kMaxIndent; ++i) bytes[i] = ' ';
     bytes[kMaxIndent] = 0;
@@ skipping 1519 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