Add several SIMD opcodes to IA32

src/compiler/ia32/instruction-selector-ia32.cc

Index: src/compiler/ia32/instruction-selector-ia32.cc
diff --git a/src/compiler/ia32/instruction-selector-ia32.cc b/src/compiler/ia32/instruction-selector-ia32.cc
index ca0aece3ecc648078e43098568a9af21f55ce26f..4a8028b4d5de074d86d189477dc3a9fa420a2bc0 100644
--- a/src/compiler/ia32/instruction-selector-ia32.cc
+++ b/src/compiler/ia32/instruction-selector-ia32.cc
@@ -1691,6 +1691,38 @@ void InstructionSelector::VisitAtomicStore(Node* node) {
   Emit(code, 0, nullptr, input_count, inputs);
 }
 
+void InstructionSelector::VisitCreateInt32x4(Node* node) {
+  IA32OperandGenerator g(this);
+  Emit(kIA32Int32x4Create, g.DefineAsRegister(node), g.Use(node->InputAt(0)));
+}
+
+void InstructionSelector::VisitInt32x4ExtractLane(Node* node) {
+  IA32OperandGenerator g(this);
+  int32_t lane = OpParameter<int32_t>(node);
+  Emit(kIA32Int32x4ExtractLane, g.DefineAsRegister(node),
+       g.UseRegister(node->InputAt(0)), g.UseImmediate(lane));
+}
+
+void InstructionSelector::VisitInt32x4ReplaceLane(Node* node) {
+  IA32OperandGenerator g(this);
+  int32_t lane = OpParameter<int32_t>(node);
+  Emit(kIA32Int32x4ReplaceLane, g.DefineSameAsFirst(node),
+       g.UseRegister(node->InputAt(0)), g.UseImmediate(lane),
+       g.Use(node->InputAt(1)));
+}
+
+void InstructionSelector::VisitInt32x4Add(Node* node) {
+  IA32OperandGenerator g(this);
+  Emit(kIA32Int32x4Add, g.DefineSameAsFirst(node),
+       g.UseRegister(node->InputAt(0)), g.UseRegister(node->InputAt(1)));
+}
+
+void InstructionSelector::VisitInt32x4Sub(Node* node) {
+  IA32OperandGenerator g(this);
+  Emit(kIA32Int32x4Sub, g.DefineSameAsFirst(node),
+       g.UseRegister(node->InputAt(0)), g.UseRegister(node->InputAt(1)));
+}
+
 // static
 MachineOperatorBuilder::Flags
 InstructionSelector::SupportedMachineOperatorFlags() {