[arm, arm64] Implemented unaligned scalar float access.

runtime/vm/assembler_arm64_test.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/globals.h"
 #if defined(TARGET_ARCH_ARM64)
 
 #include "vm/assembler.h"
 #include "vm/cpu.h"
 #include "vm/os.h"
@@ skipping 2095 matching lines @@
   __ ret();
 }
 
 
 ASSEMBLER_TEST_RUN(Fmovdr, test) {
   typedef double (*DoubleReturn)() DART_UNUSED;
   EXPECT_EQ(1.0, EXECUTE_TEST_CODE_DOUBLE(DoubleReturn, test->entry()));
 }
 
 
+ASSEMBLER_TEST_GENERATE(Fmovrs, assembler) {
+  __ LoadDImmediate(V2, 1.0);
+  __ fcvtsd(V1, V2);
+  __ fmovrs(R0, V1);
+  __ ret();
+}
+
+
+ASSEMBLER_TEST_RUN(Fmovrs, test) {
+  typedef int64_t (*Int64Return)() DART_UNUSED;
+  int64_t result = EXECUTE_TEST_CODE_INT64(Int64Return, test->entry());
+  const uint32_t one = bit_cast<uint32_t, float>(1.0f);
+  EXPECT_EQ(one, static_cast<uint32_t>(result));
+}
+
+
+ASSEMBLER_TEST_GENERATE(Fmovsr, assembler) {
+  __ LoadImmediate(R2, bit_cast<uint32_t, float>(1.0f));
+  __ fmovsr(V1, R2);
+  __ fmovrs(R0, V1);
+  __ ret();
+}
+
+
+ASSEMBLER_TEST_RUN(Fmovsr, test) {
+  typedef int64_t (*Int64Return)() DART_UNUSED;
+  int64_t result = EXECUTE_TEST_CODE_INT64(Int64Return, test->entry());
+  const uint32_t one = bit_cast<uint32_t, float>(1.0f);
+  EXPECT_EQ(one, static_cast<uint32_t>(result));
+}
+
+
 ASSEMBLER_TEST_GENERATE(FldrdFstrdPrePostIndex, assembler) {
   __ SetupDartSP();
   __ LoadDImmediate(V1, 42.0);
   __ fstrd(V1, Address(SP, -1 * kWordSize, Address::PreIndex));
   __ fldrd(V0, Address(SP, 1 * kWordSize, Address::PostIndex));
   __ RestoreCSP();
   __ ret();
 }
 
 
@@ skipping 1666 matching lines @@
   __ Pop(LR);
   __ Pop(THR);
   __ Pop(CODE_REG);
   __ RestoreCSP();
   __ ret();
 }
 
 }  // namespace dart
 
 #endif  // defined(TARGET_ARCH_ARM64)