[wasm] Implement first set of SIMD I8x16 ops

src/compiler/x64/instruction-scheduler-x64.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/compiler/instruction-scheduler.h"
 
 namespace v8 {
 namespace internal {
 namespace compiler {
 
@@ skipping 139 matching lines @@
     case kX64I16x8Mul:
     case kX64I16x8MinS:
     case kX64I16x8MaxS:
     case kX64I16x8Eq:
     case kX64I16x8Ne:
     case kX64I16x8ShrU:
     case kX64I16x8AddSaturateU:
     case kX64I16x8SubSaturateU:
     case kX64I16x8MinU:
     case kX64I16x8MaxU:
+    case kX64I8x16Splat:
+    case kX64I8x16ExtractLane:
+    case kX64I8x16ReplaceLane:
+    case kX64I8x16Add:
+    case kX64I8x16AddSaturateS:
+    case kX64I8x16Sub:
+    case kX64I8x16SubSaturateS:
+    case kX64I8x16MinS:
+    case kX64I8x16MaxS:
+    case kX64I8x16Eq:
+    case kX64I8x16Ne:
+    case kX64I8x16AddSaturateU:
+    case kX64I8x16SubSaturateU:
+    case kX64I8x16MinU:
+    case kX64I8x16MaxU:
     case kX64S128Select:
     case kX64S128Zero:
       return (instr->addressing_mode() == kMode_None)
           ? kNoOpcodeFlags
           : kIsLoadOperation | kHasSideEffect;
 
     case kX64Idiv:
     case kX64Idiv32:
     case kX64Udiv:
     case kX64Udiv32:
@@ skipping 121 matching lines @@
     case kArchTruncateDoubleToI:
       return 6;
     default:
       return 1;
   }
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8