Use UnboxedInt32 and UnboxedUint32 representation for LoadIndexedInstr

runtime/vm/assembler_arm64_test.cc

Index: runtime/vm/assembler_arm64_test.cc
diff --git a/runtime/vm/assembler_arm64_test.cc b/runtime/vm/assembler_arm64_test.cc
index 1f6e981c941899ec3f601eddbe18dc63838b62f1..94f443636224d84af531259737584f2fdc19ce56 100644
--- a/runtime/vm/assembler_arm64_test.cc
+++ b/runtime/vm/assembler_arm64_test.cc
@@ -1697,6 +1697,20 @@ ASSEMBLER_TEST_RUN(Scvtfd, test) {
 }
 
 
+ASSEMBLER_TEST_GENERATE(Scvtfd32, assembler) {
+  // Fill upper 32-bits with garbage.
+  __ LoadImmediate(R0, 0x111111110000002A, kNoPP);
+  __ scvtfd32(V0, R0);
+  __ ret();
+}
+
+
+ASSEMBLER_TEST_RUN(Scvtfd32, test) {
+  typedef double (*DoubleReturn)() DART_UNUSED;
+  EXPECT_EQ(42.0, EXECUTE_TEST_CODE_DOUBLE(DoubleReturn, test->entry()));
+}
+
+
 ASSEMBLER_TEST_GENERATE(FabsdPos, assembler) {
   __ LoadDImmediate(V1, 42.0, kNoPP);
   __ fabsd(V0, V1);