Convert diamond shaped control flow into a single conditional instruction.

runtime/vm/assembler_ia32_test.cc

 // Copyright (c) 2012, 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_IA32)
 
 #include "vm/assembler.h"
 #include "vm/os.h"
 #include "vm/unit_test.h"
@@ skipping 2408 matching lines @@
 }
 
 
 ASSEMBLER_TEST_RUN(TestObjectCompare, test) {
   typedef bool (*TestObjectCompare)();
   bool res = reinterpret_cast<TestObjectCompare>(test->entry())();
   EXPECT_EQ(true, res);
 }
 
 
+ASSEMBLER_TEST_GENERATE(TestSetCC, assembler) {
+  __ movl(EAX, Immediate(0xFFFFFFFF));
+  __ cmpl(EAX, EAX);
+  __ setcc(NOT_EQUAL, AL);
+  __ ret();
+}
+
+
+ASSEMBLER_TEST_RUN(TestSetCC, test) {
+  typedef uword (*TestSetCC)();
+  uword res = reinterpret_cast<TestSetCC>(test->entry())();
+  EXPECT_EQ(0xFFFFFF00, res);
+}
+
+
 ASSEMBLER_TEST_GENERATE(TestNop, assembler) {
   __ nop(1);
   __ nop(2);
   __ nop(3);
   __ nop(4);
   __ nop(5);
   __ nop(6);
   __ nop(7);
   __ nop(8);
   __ movl(EAX, Immediate(assembler->CodeSize()));  // Return code size.
@@ skipping 79 matching lines @@
                      EAX);
   __ popl(EAX);
   __ popl(CTX);
   __ ret();
 }
 
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_IA32