Reduce register pressure on ARM, ARM64, and MIPS.

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 1480 matching lines @@
   __ ret();
 }
 
 
 ASSEMBLER_TEST_RUN(CsincTrue, test) {
   typedef int (*SimpleCode)();
   EXPECT_EQ(1234, EXECUTE_TEST_CODE_INT64(SimpleCode, test->entry()));
 }
 
 
+ASSEMBLER_TEST_GENERATE(CsinvFalse, assembler) {
+  __ LoadImmediate(R1, 42, kNoRegister);
+  __ LoadImmediate(R2, 1234, kNoRegister);
+  __ CompareRegisters(R1, R2);
+  __ csinv(R0, R2, R1, GE);
+  __ ret();
+}
+
+
+ASSEMBLER_TEST_RUN(CsinvFalse, test) {
+  typedef int (*SimpleCode)();
+  EXPECT_EQ(~42, EXECUTE_TEST_CODE_INT64(SimpleCode, test->entry()));
+}
+
+
+ASSEMBLER_TEST_GENERATE(CsinvTrue, assembler) {
+  __ LoadImmediate(R1, 42, kNoRegister);
+  __ LoadImmediate(R2, 1234, kNoRegister);
+  __ CompareRegisters(R1, R2);
+  __ csinv(R0, R2, R1, LT);
+  __ ret();
+}
+
+
+ASSEMBLER_TEST_RUN(CsinvTrue, test) {
+  typedef int (*SimpleCode)();
+  EXPECT_EQ(1234, EXECUTE_TEST_CODE_INT64(SimpleCode, test->entry()));
+}
+
+
 // Floating point move immediate, to/from integer register.
 ASSEMBLER_TEST_GENERATE(Fmovdi, assembler) {
   __ LoadDImmediate(V0, 1.0, kNoPP);
   __ ret();
 }
 
 
 ASSEMBLER_TEST_RUN(Fmovdi, test) {
   typedef int (*SimpleCode)();
   EXPECT_EQ(1.0, EXECUTE_TEST_CODE_DOUBLE(SimpleCode, test->entry()));
@@ skipping 1676 matching lines @@
                      R1);
   __ Pop(LR);
   __ Pop(CTX);
   __ PopAndUntagPP();
   __ ret();
 }
 
 }  // namespace dart
 
 #endif  // defined(TARGET_ARCH_ARM64)