[wasm-simd][liftoff][arm][arm64] Implement eq

Bug: v8:9909
Change-Id: Ib94db390f70ddaa7eafb5af77023b1024c2b96b9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2151168Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67181}

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

@@ -2131,27 +2131,46 @@ void LiftoffAssembler::emit_i8x16_max_u(LiftoffRegister dst,
 
 void LiftoffAssembler::emit_i8x16_eq(LiftoffRegister dst, LiftoffRegister lhs,
                                      LiftoffRegister rhs) {
-  bailout(kSimd, "i8x16_eq");
+  vceq(Neon8, liftoff::GetSimd128Register(dst),
+       liftoff::GetSimd128Register(lhs), liftoff::GetSimd128Register(rhs));
 }
 
 void LiftoffAssembler::emit_i16x8_eq(LiftoffRegister dst, LiftoffRegister lhs,
                                      LiftoffRegister rhs) {
-  bailout(kSimd, "i16x8_eq");
+  vceq(Neon16, liftoff::GetSimd128Register(dst),
+       liftoff::GetSimd128Register(lhs), liftoff::GetSimd128Register(rhs));
 }
 
 void LiftoffAssembler::emit_i32x4_eq(LiftoffRegister dst, LiftoffRegister lhs,
                                      LiftoffRegister rhs) {
-  bailout(kSimd, "i32x4_eq");
+  vceq(Neon32, liftoff::GetSimd128Register(dst),
+       liftoff::GetSimd128Register(lhs), liftoff::GetSimd128Register(rhs));
 }
 
 void LiftoffAssembler::emit_f32x4_eq(LiftoffRegister dst, LiftoffRegister lhs,
                                      LiftoffRegister rhs) {
-  bailout(kSimd, "f32x4_eq");
+  vceq(liftoff::GetSimd128Register(dst), liftoff::GetSimd128Register(lhs),
+       liftoff::GetSimd128Register(rhs));
 }
 
 void LiftoffAssembler::emit_f64x2_eq(LiftoffRegister dst, LiftoffRegister lhs,
                                      LiftoffRegister rhs) {
-  bailout(kSimd, "f64x2_eq");
+  QwNeonRegister dest = liftoff::GetSimd128Register(dst);
+  QwNeonRegister left = liftoff::GetSimd128Register(lhs);
+  QwNeonRegister right = liftoff::GetSimd128Register(rhs);
+  UseScratchRegisterScope temps(this);
+  Register scratch = temps.Acquire();
+
+  mov(scratch, Operand(0));
+  VFPCompareAndSetFlags(left.low(), right.low());
+
+  mov(scratch, Operand(-1), LeaveCC, eq);
+  vmov(dest.low(), scratch, scratch);
+
+  mov(scratch, Operand(0));
+  VFPCompareAndSetFlags(left.high(), right.high());
+  mov(scratch, Operand(-1), LeaveCC, eq);
+  vmov(dest.high(), scratch, scratch);
 }
 
 void LiftoffAssembler::emit_i8x16_rounding_average_u(LiftoffRegister dst,

src/wasm/baseline/arm64/liftoff-assembler-arm64.h

@@ -1511,27 +1511,27 @@ void LiftoffAssembler::emit_i8x16_max_u(LiftoffRegister dst,
 
 void LiftoffAssembler::emit_i8x16_eq(LiftoffRegister dst, LiftoffRegister lhs,
                                      LiftoffRegister rhs) {
-  bailout(kSimd, "i8x16_eq");
+  Cmeq(dst.fp().V16B(), lhs.fp().V16B(), rhs.fp().V16B());
 }
 
 void LiftoffAssembler::emit_i16x8_eq(LiftoffRegister dst, LiftoffRegister lhs,
                                      LiftoffRegister rhs) {
-  bailout(kSimd, "i16x8_eq");
+  Cmeq(dst.fp().V8H(), lhs.fp().V8H(), rhs.fp().V8H());
 }
 
 void LiftoffAssembler::emit_i32x4_eq(LiftoffRegister dst, LiftoffRegister lhs,
                                      LiftoffRegister rhs) {
-  bailout(kSimd, "i32x4_eq");
+  Cmeq(dst.fp().V4S(), lhs.fp().V4S(), rhs.fp().V4S());
 }
 
 void LiftoffAssembler::emit_f32x4_eq(LiftoffRegister dst, LiftoffRegister lhs,
                                      LiftoffRegister rhs) {
-  bailout(kSimd, "f32x4_eq");
+  Fcmeq(dst.fp().V4S(), lhs.fp().V4S(), rhs.fp().V4S());
 }
 
 void LiftoffAssembler::emit_f64x2_eq(LiftoffRegister dst, LiftoffRegister lhs,
                                      LiftoffRegister rhs) {
-  bailout(kSimd, "f64x2_eq");
+  Fcmeq(dst.fp().V2D(), lhs.fp().V2D(), rhs.fp().V2D());
 }
 
 void LiftoffAssembler::emit_i8x16_rounding_average_u(LiftoffRegister dst,