PPC/s390: [wasm-simd] Implement i64x2 neg for arm

Port a7b9e588

R=zhin@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=
LOG=N

Change-Id: I3406f424dcf918edd8cc51f7fe94dc28c2b4ed85
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1924867Reviewed-by: Junliang Yan <jyan@ca.ibm.com>
Commit-Queue: Milad Farazmand <miladfar@ca.ibm.com>
Cr-Commit-Position: refs/heads/master@{#65047}

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

@@ -2422,6 +2422,8 @@ void InstructionSelector::VisitF64x2Lt(Node* node) { UNIMPLEMENTED(); }
 
 void InstructionSelector::VisitF64x2Le(Node* node) { UNIMPLEMENTED(); }
 
+void InstructionSelector::VisitI64x2Neg(Node* node) { UNIMPLEMENTED(); }
+
 // static
 MachineOperatorBuilder::Flags
 InstructionSelector::SupportedMachineOperatorFlags() {

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

@@ -2837,6 +2837,8 @@ void InstructionSelector::VisitF64x2Lt(Node* node) { UNIMPLEMENTED(); }
 
 void InstructionSelector::VisitF64x2Le(Node* node) { UNIMPLEMENTED(); }
 
+void InstructionSelector::VisitI64x2Neg(Node* node) { UNIMPLEMENTED(); }
+
 // static
 MachineOperatorBuilder::Flags
 InstructionSelector::SupportedMachineOperatorFlags() {