PPC: [wasm] Int64Lowering of Int64Mul.

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 792 matching lines @@
 }
 
 void InstructionSelector::VisitInt32PairAdd(Node* node) {
   VisitPairBinop(this, kPPC_AddPair, node);
 }
 
 void InstructionSelector::VisitInt32PairSub(Node* node) {
   VisitPairBinop(this, kPPC_SubPair, node);
 }
 
-void InstructionSelector::VisitInt32PairMul(Node* node) { UNIMPLEMENTED(); }
+void InstructionSelector::VisitInt32PairMul(Node* node) {
+  PPCOperandGenerator g(this);
+  InstructionOperand inputs[] = {g.UseUniqueRegister(node->InputAt(0)),
+                                 g.UseUniqueRegister(node->InputAt(1)),
+                                 g.UseUniqueRegister(node->InputAt(2)),
+                                 g.UseRegister(node->InputAt(3))};
+
+  InstructionOperand outputs[] = {
+      g.DefineAsRegister(node),
+      g.DefineAsRegister(NodeProperties::FindProjection(node, 1))};
+
+  InstructionOperand temps[] = {g.TempRegister(), g.TempRegister()};
+
+  Emit(kPPC_MulPair, 2, outputs, 4, inputs, 2, temps);
+}
 
 void VisitPairShift(InstructionSelector* selector, InstructionCode opcode,
                     Node* node) {
   PPCOperandGenerator g(selector);
   Int32Matcher m(node->InputAt(2));
   InstructionOperand shift_operand;
   if (m.HasValue()) {
     shift_operand = g.UseImmediate(m.node());
   } else {
     shift_operand = g.UseUniqueRegister(m.node());
@@ skipping 1068 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