[wasm] Int64Lowering of I64ShrU and I64ShrS on ia32.

src/compiler/ppc/instruction-selector-ppc.cc

 // Copyright 2014 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/base/adapters.h"
 #include "src/compiler/instruction-selector-impl.h"
 #include "src/compiler/node-matchers.h"
 #include "src/compiler/node-properties.h"
 #include "src/ppc/frames-ppc.h"
 
@@ skipping 707 matching lines @@
         Emit(kPPC_RotLeftAndMask32, g.DefineAsRegister(node),
              g.UseRegister(mleft.left().node()), g.TempImmediate(sh),
              g.TempImmediate(mb), g.TempImmediate(me));
         return;
       }
     }
   }
   VisitRRO(this, kPPC_ShiftRight32, node, kShift32Imm);
 }
 
+#if !V8_TARGET_ARCH_PPC64
+void InstructionSelector::VisitWord32PairShr(Node* node) { UNIMPLEMENTED(); }
+
+void InstructionSelector::VisitWord32PairSar(Node* node) { UNIMPLEMENTED(); }
+#endif
 
 #if V8_TARGET_ARCH_PPC64
 void InstructionSelector::VisitWord64Shr(Node* node) {
   PPCOperandGenerator g(this);
   Int64BinopMatcher m(node);
   if (m.left().IsWord64And() && m.right().IsInRange(0, 63)) {
     // Try to absorb logical-and into rldic
     Int64BinopMatcher mleft(m.left().node());
     int sh = m.right().Value();
     int mb;
@@ skipping 1095 matching lines @@
          MachineOperatorBuilder::kFloat64RoundTruncate |
          MachineOperatorBuilder::kFloat64RoundTiesAway |
          MachineOperatorBuilder::kWord32Popcnt |
          MachineOperatorBuilder::kWord64Popcnt;
   // We omit kWord32ShiftIsSafe as s[rl]w use 0x3f as a mask rather than 0x1f.
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8