Impelments IfThenElse instruction for ARM and MIPS.

runtime/vm/assembler_mips.h

 // 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.
 
 #ifndef VM_ASSEMBLER_MIPS_H_
 #define VM_ASSEMBLER_MIPS_H_
 
 #ifndef VM_ASSEMBLER_H_
 #error Do not include assembler_mips.h directly; use assembler.h instead.
 #endif
@@ skipping 841 matching lines @@
     } else {
       LoadImmediate(TMP1, value);
       addu(rd, rs, TMP1);
     }
   }
 
   void AddImmediate(Register rd, int32_t value) {
     AddImmediate(rd, rd, value);
   }
 
+  void AndImmediate(Register rd, Register rs, int32_t imm) {
+    if (imm == 0) {
+      mov(rd, ZR);
+      return;
+    }
+
+    if (Utils::IsUint(kImmBits, imm)) {
+      andi(rd, rs, Immediate(imm));
+    } else {
+      LoadImmediate(TMP, imm);
+      and_(rd, rs, TMP);
+    }
+  }
+
   void BranchEqual(Register rd, int32_t value, Label* l) {
     if (value == 0) {
       beq(rd, ZR, l);
     } else {
       ASSERT(rd != CMPRES2);
       LoadImmediate(CMPRES2, value);
       beq(rd, CMPRES2, l);
     }
   }
 
@@ skipping 389 matching lines @@
                                   Register value,
                                   Label* no_update);
 
   DISALLOW_ALLOCATION();
   DISALLOW_COPY_AND_ASSIGN(Assembler);
 };
 
 }  // namespace dart
 
 #endif  // VM_ASSEMBLER_MIPS_H_