Use GPRs for mints

runtime/vm/assembler_arm_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_ARM)
 
 #include "vm/assembler.h"
 #include "vm/cpu.h"
 #include "vm/os.h"
@@ skipping 665 matching lines @@
 }
 
 
 ASSEMBLER_TEST_RUN(AddSub, test) {
   EXPECT(test != NULL);
   typedef int (*AddSub)();
   EXPECT_EQ(42, EXECUTE_TEST_CODE_INT32(AddSub, test->entry()));
 }
 
 
+ASSEMBLER_TEST_GENERATE(AddCarry, assembler) {
+  __ LoadImmediate(R2, 0xFFFFFFFF);
+  __ mov(R1, ShifterOperand(1));
+  __ mov(R0, ShifterOperand(0));
+  __ adds(R2, R2, ShifterOperand(R1));
+  __ adcs(R0, R0, ShifterOperand(R0));
+  __ bx(LR);
+}
+
+
+ASSEMBLER_TEST_RUN(AddCarry, test) {
+  EXPECT(test != NULL);
+  typedef int (*AddCarry)();
+  EXPECT_EQ(1, EXECUTE_TEST_CODE_INT32(AddCarry, test->entry()));
+}
+
+
+ASSEMBLER_TEST_GENERATE(SubCarry, assembler) {
+  __ LoadImmediate(R2, 0x0);
+  __ mov(R1, ShifterOperand(1));
+  __ mov(R0, ShifterOperand(0));
+  __ subs(R2, R2, ShifterOperand(R1));
+  __ sbcs(R0, R0, ShifterOperand(R0));
+  __ bx(LR);
+}
+
+
+ASSEMBLER_TEST_RUN(SubCarry, test) {
+  EXPECT(test != NULL);
+  typedef int (*SubCarry)();
+  EXPECT_EQ(-1, EXECUTE_TEST_CODE_INT32(SubCarry, test->entry()));
+}
+
+
 ASSEMBLER_TEST_GENERATE(AndOrr, assembler) {
   __ mov(R1, ShifterOperand(40));
   __ mov(R2, ShifterOperand(0));
   __ and_(R1, R2, ShifterOperand(R1));
   __ mov(R3, ShifterOperand(42));
   __ orr(R0, R1, ShifterOperand(R3));
   __ bx(LR);
 }
 
 
@@ skipping 3342 matching lines @@
   __ StoreIntoObject(R2,
                      FieldAddress(R2, GrowableObjectArray::data_offset()),
                      R1);
   __ PopList((1 << CTX) | (1 << LR));
   __ Ret();
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_ARM