Reland of [turbofan] ARM: Implement vswp and use in gap resolver

test/cctest/test-disasm-arm.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 914 matching lines @@
   if (CpuFeatures::IsSupported(NEON)) {
     CpuFeatureScope scope(&assm, NEON);
       COMPARE(vld1(Neon8, NeonListOperand(d4, 4), NeonMemOperand(r1)),
               "f421420f       vld1.8 {d4, d5, d6, d7}, [r1]");
       COMPARE(vst1(Neon16, NeonListOperand(d17, 4), NeonMemOperand(r9)),
               "f449124f       vst1.16 {d17, d18, d19, d20}, [r9]");
       COMPARE(vmovl(NeonU8, q3, d1),
               "f3886a11       vmovl.u8 q3, d1");
       COMPARE(vmovl(NeonU8, q4, d2),
               "f3888a12       vmovl.u8 q4, d2");
+      COMPARE(vswp(d0, d31),
+              "f3b2002f       vswp d0, d31");
+      COMPARE(vswp(d16, d14),
+              "f3f2000e       vswp d16, d14");
   }
 
   VERIFY_RUN();
 }
 
 
 TEST(LoadStore) {
   SET_UP();
 
   COMPARE(ldrb(r0, MemOperand(r1)),
@@ skipping 270 matching lines @@
 
   COMPARE(ldrexb(r0, r1), "e1d10f9f       ldrexb r0, [r1]");
   COMPARE(strexb(r0, r1, r2), "e1c20f91       strexb r0, r1, [r2]");
   COMPARE(ldrexh(r0, r1), "e1f10f9f       ldrexh r0, [r1]");
   COMPARE(strexh(r0, r1, r2), "e1e20f91       strexh r0, r1, [r2]");
   COMPARE(ldrex(r0, r1), "e1910f9f       ldrex r0, [r1]");
   COMPARE(strex(r0, r1, r2), "e1820f91       strex r0, r1, [r2]");
 
   VERIFY_RUN();
 }