PPC/s390: [wasm-simd] Implement f64x2 comparisons for arm

Port b6edadc0

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

Change-Id: I3d4ea2be5f97688022733a36d36f9f86499b962d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1901124Reviewed-by: Junliang Yan <jyan@ca.ibm.com>
Commit-Queue: Milad Farazmand <miladfar@ca.ibm.com>
Cr-Commit-Position: refs/heads/master@{#64817}

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

@@ -2440,6 +2440,14 @@ void InstructionSelector::VisitF64x2Mul(Node* node) { UNIMPLEMENTED(); }
 
 void InstructionSelector::VisitF64x2Div(Node* node) { UNIMPLEMENTED(); }
 
+void InstructionSelector::VisitF64x2Eq(Node* node) { UNIMPLEMENTED(); }
+
+void InstructionSelector::VisitF64x2Ne(Node* node) { UNIMPLEMENTED(); }
+
+void InstructionSelector::VisitF64x2Lt(Node* node) { UNIMPLEMENTED(); }
+
+void InstructionSelector::VisitF64x2Le(Node* node) { UNIMPLEMENTED(); }
+
 // static
 MachineOperatorBuilder::Flags
 InstructionSelector::SupportedMachineOperatorFlags() {

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

@@ -2856,6 +2856,14 @@ void InstructionSelector::VisitF64x2Mul(Node* node) { UNIMPLEMENTED(); }
 
 void InstructionSelector::VisitF64x2Div(Node* node) { UNIMPLEMENTED(); }
 
+void InstructionSelector::VisitF64x2Eq(Node* node) { UNIMPLEMENTED(); }
+
+void InstructionSelector::VisitF64x2Ne(Node* node) { UNIMPLEMENTED(); }
+
+void InstructionSelector::VisitF64x2Lt(Node* node) { UNIMPLEMENTED(); }
+
+void InstructionSelector::VisitF64x2Le(Node* node) { UNIMPLEMENTED(); }
+
 // static
 MachineOperatorBuilder::Flags
 InstructionSelector::SupportedMachineOperatorFlags() {