[arm] Drop SMMLS support.

test/cctest/test-assembler-arm.cc

 // Copyright 2012 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 1506 matching lines @@
   F3 f = FUNCTION_CAST<F3>(code->entry());
   for (size_t i = 0; i < 128; ++i) {
     int32_t r, x = rng->NextInt(), y = rng->NextInt(), z = rng->NextInt();
     Object* dummy = CALL_GENERATED_CODE(f, &r, x, y, z, 0);
     CHECK_EQ(bits::SignedMulHighAndAdd32(x, y, z), r);
     USE(dummy);
   }
 }
 
 
-TEST(smmls) {
-  CcTest::InitializeVM();
-  Isolate* const isolate = CcTest::i_isolate();
-  HandleScope scope(isolate);
-  RandomNumberGenerator* const rng = isolate->random_number_generator();
-  Assembler assm(isolate, nullptr, 0);
-  __ smmls(r1, r1, r2, r3);
-  __ str(r1, MemOperand(r0));
-  __ bx(lr);
-  CodeDesc desc;
-  assm.GetCode(&desc);
-  Handle<Code> code = isolate->factory()->NewCode(
-      desc, Code::ComputeFlags(Code::STUB), Handle<Code>());
-#ifdef OBJECT_PRINT
-  code->Print(std::cout);
-#endif
-  F3 f = FUNCTION_CAST<F3>(code->entry());
-  for (size_t i = 0; i < 128; ++i) {
-    int32_t r, x = rng->NextInt(), y = rng->NextInt(), z = rng->NextInt();
-    Object* dummy = CALL_GENERATED_CODE(f, &r, x, y, z, 0);
-    CHECK_EQ(bits::SignedMulHighAndSub32(x, y, z), r);
-    USE(dummy);
-  }
-}
-
-
 TEST(smmul) {
   CcTest::InitializeVM();
   Isolate* const isolate = CcTest::i_isolate();
   HandleScope scope(isolate);
   RandomNumberGenerator* const rng = isolate->random_number_generator();
   Assembler assm(isolate, nullptr, 0);
   __ smmul(r1, r1, r2);
   __ str(r1, MemOperand(r0));
   __ bx(lr);
   CodeDesc desc;
@@ skipping 77 matching lines @@
   assm.GetCode(&desc);
   Handle<Code> code = isolate->factory()->NewCode(
       desc, Code::ComputeFlags(Code::STUB), code_object);
   F1 f = FUNCTION_CAST<F1>(code->entry());
   int res = reinterpret_cast<int>(CALL_GENERATED_CODE(f, 21, 0, 0, 0, 0));
   ::printf("f() = %d\n", res);
   CHECK_EQ(42, res);
 }
 
 #undef __