PPC/s390: fix compilation error

R=joransiu@ca.ibm.com

Change-Id: I995c7ea23899a00a92b350cbd1878c41d56760c2
Reviewed-on: https://chromium-review.googlesource.com/1005279Reviewed-by: Joran Siu <joransiu@ca.ibm.com>
Commit-Queue: Junliang Yan <jyan@ca.ibm.com>
Cr-Commit-Position: refs/heads/master@{#52529}

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

@@ -2212,6 +2212,10 @@ void InstructionSelector::VisitF32x4RecipSqrtApprox(Node* node) {
 
 void InstructionSelector::VisitF32x4RecipApprox(Node* node) { UNIMPLEMENTED(); }
 
+void InstructionSelector::VisitF32x4AddHoriz(Node* node) { UNIMPLEMENTED(); }
+void InstructionSelector::VisitI32x4AddHoriz(Node* node) { UNIMPLEMENTED(); }
+void InstructionSelector::VisitI16x8AddHoriz(Node* node) { UNIMPLEMENTED(); }
+
 // static
 MachineOperatorBuilder::Flags
 InstructionSelector::SupportedMachineOperatorFlags() {

src/compiler/s390/instruction-selector-s390.cc

@@ -2483,6 +2483,10 @@ void InstructionSelector::VisitF32x4RecipSqrtApprox(Node* node) {
 
 void InstructionSelector::VisitF32x4RecipApprox(Node* node) { UNIMPLEMENTED(); }
 
+void InstructionSelector::VisitF32x4AddHoriz(Node* node) { UNIMPLEMENTED(); }
+void InstructionSelector::VisitI32x4AddHoriz(Node* node) { UNIMPLEMENTED(); }
+void InstructionSelector::VisitI16x8AddHoriz(Node* node) { UNIMPLEMENTED(); }
+
 // static
 MachineOperatorBuilder::Flags
 InstructionSelector::SupportedMachineOperatorFlags() {