PPC/s390: [wasm-simd][x64][liftoff] Implement i64x2 signed compares

Port b57a0d19

Original Commit Message:

    Extract code sequence into macro-assembler for reuse between Liftoff and
    TurboFan.

    There is a bit of register-aliasing checking due to the rather strict
    requirements for the code sequence depending on the CpuFetures that are
    supported.

R=zhin@chromium.org, joransiu@ca.ibm.com, junyan@redhat.com, midawson@redhat.com
BUG=
LOG=N

Change-Id: Ia7c8adf67ea04eda43966effe71919334da10b58
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2705157Reviewed-by: Junliang Yan <junyan@redhat.com>
Commit-Queue: Milad Fa <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/master@{#72876}

src/wasm/baseline/ppc/liftoff-assembler-ppc.h

@@ -1465,6 +1465,16 @@ void LiftoffAssembler::emit_i64x2_ne(LiftoffRegister dst, LiftoffRegister lhs,
   bailout(kSimd, "i64x2_ne");
 }
 
+void LiftoffAssembler::emit_i64x2_gt_s(LiftoffRegister dst, LiftoffRegister lhs,
+                                       LiftoffRegister rhs) {
+  bailout(kSimd, "i64x2.gt_s");
+}
+
+void LiftoffAssembler::emit_i64x2_ge_s(LiftoffRegister dst, LiftoffRegister lhs,
+                                       LiftoffRegister rhs) {
+  bailout(kSimd, "i64x2.ge_s");
+}
+
 void LiftoffAssembler::emit_f32x4_eq(LiftoffRegister dst, LiftoffRegister lhs,
                                      LiftoffRegister rhs) {
   bailout(kUnsupportedArchitecture, "emit_f32x4_eq");

src/wasm/baseline/s390/liftoff-assembler-s390.h

@@ -2110,6 +2110,16 @@ void LiftoffAssembler::emit_i64x2_ne(LiftoffRegister dst, LiftoffRegister lhs,
   bailout(kSimd, "i64x2_ne");
 }
 
+void LiftoffAssembler::emit_i64x2_gt_s(LiftoffRegister dst, LiftoffRegister lhs,
+                                       LiftoffRegister rhs) {
+  bailout(kSimd, "i64x2.gt_s");
+}
+
+void LiftoffAssembler::emit_i64x2_ge_s(LiftoffRegister dst, LiftoffRegister lhs,
+                                       LiftoffRegister rhs) {
+  bailout(kSimd, "i64x2.ge_s");
+}
+
 void LiftoffAssembler::emit_f32x4_eq(LiftoffRegister dst, LiftoffRegister lhs,
                                      LiftoffRegister rhs) {
   bailout(kUnsupportedArchitecture, "emit_f32x4_eq");