DBC: Implement TestSmi instruction.

runtime/vm/assembler_dbc_test.cc

 // Copyright (c) 2016, 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_DBC)
 
 #include "vm/assembler.h"
 #include "vm/stack_frame.h"
 #include "vm/unit_test.h"
@@ skipping 1588 matching lines @@
 
 ASSEMBLER_TEST_RUN(CreateArrayTOS, test) {
   const Object& obj = EXECUTE_TEST_CODE_OBJECT(test->code());
   EXPECT(obj.IsArray());
   Array& array = Array::Handle();
   array ^= obj.raw();
   EXPECT_EQ(10, array.Length());
 }
 
 
+//  - TestSmi rA, rD
+//
+//    If FP[rA] & FP[rD] != 0, then skip the next instruction. FP[rA] and FP[rD]
+//    must be Smis.
+ASSEMBLER_TEST_GENERATE(TestSmiTrue, assembler) {
+  Label branch_taken;
+  __ Frame(2);
+  __ LoadConstant(0, Smi::Handle(Smi::New(7)));
+  __ LoadConstant(1, Smi::Handle(Smi::New(3)));
+  __ TestSmi(0, 1);
+  __ Jump(&branch_taken);
+  __ PushConstant(Bool::True());
+  __ ReturnTOS();
+  __ Bind(&branch_taken);
+  __ PushConstant(Bool::False());
+  __ ReturnTOS();
+}
+
+
+ASSEMBLER_TEST_RUN(TestSmiTrue, test) {
+  EXPECT(EXECUTE_TEST_CODE_BOOL(test->code()));
+}
+
+
+ASSEMBLER_TEST_GENERATE(TestSmiFalse, assembler) {
+  Label branch_taken;
+  __ Frame(2);
+  __ LoadConstant(0, Smi::Handle(Smi::New(8)));
+  __ LoadConstant(1, Smi::Handle(Smi::New(4)));
+  __ TestSmi(0, 1);
+  __ Jump(&branch_taken);
+  __ PushConstant(Bool::True());
+  __ ReturnTOS();
+  __ Bind(&branch_taken);
+  __ PushConstant(Bool::False());
+  __ ReturnTOS();
+}
+
+
+ASSEMBLER_TEST_RUN(TestSmiFalse, test) {
+  EXPECT(!EXECUTE_TEST_CODE_BOOL(test->code()));
+}
+
+
 //  - CheckSmi rA
 //
 //    If FP[rA] is a Smi, then skip the next instruction.
 ASSEMBLER_TEST_GENERATE(CheckSmiPass, assembler) {
   __ Frame(1);
   __ PushConstant(Smi::Handle(Smi::New(42)));
   __ LoadConstant(0, Smi::Handle(Smi::New(0)));
   __ CheckSmi(0);
   __ PushConstant(Smi::Handle(Smi::New(-1)));
   __ ReturnTOS();
@@ skipping 125 matching lines @@
 }
 
 
 ASSEMBLER_TEST_RUN(IfNeNullNotNull, test) {
   EXPECT_EQ(42, EXECUTE_TEST_CODE_INTPTR(test->code()));
 }
 
 }  // namespace dart
 
 #endif  // defined(TARGET_ARCH_DBC)