VM: Enable branch merging of isnan, isinf.

runtime/vm/constants_dbc.h

 // 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.
 
 #ifndef RUNTIME_VM_CONSTANTS_DBC_H_
 #define RUNTIME_VM_CONSTANTS_DBC_H_
 
 #include "platform/globals.h"
 #include "platform/assert.h"
 #include "platform/utils.h"
@@ skipping 711 matching lines @@
   V(DMax,                        A_B_C, reg, reg, reg) \
   V(DCos,                          A_D, reg, reg, ___) \
   V(DSin,                          A_D, reg, reg, ___) \
   V(DPow,                        A_B_C, reg, reg, reg) \
   V(DMod,                        A_B_C, reg, reg, reg) \
   V(DTruncate,                     A_D, reg, reg, ___) \
   V(DFloor,                        A_D, reg, reg, ___) \
   V(DCeil,                         A_D, reg, reg, ___) \
   V(DoubleToFloat,                 A_D, reg, reg, ___) \
   V(FloatToDouble,                 A_D, reg, reg, ___) \
-  V(DoubleIsNaN,                   A_D, reg, reg, ___) \
-  V(DoubleIsInfinite,              A_D, reg, reg, ___) \
+  V(DoubleIsNaN,                     A, reg, ___, ___) \
+  V(DoubleIsInfinite,                A, reg, ___, ___) \
   V(StoreStaticTOS,                  D, lit, ___, ___) \
   V(PushStatic,                      D, lit, ___, ___) \
   V(InitStaticTOS,                   0, ___, ___, ___) \
   V(IfNeStrictTOS,                   0, ___, ___, ___) \
   V(IfEqStrictTOS,                   0, ___, ___, ___) \
   V(IfNeStrictNumTOS,                0, ___, ___, ___) \
   V(IfEqStrictNumTOS,                0, ___, ___, ___) \
   V(IfNeStrict,                    A_D, reg, reg, ___) \
   V(IfEqStrict,                    A_D, reg, reg, ___) \
   V(IfLe,                          A_D, reg, reg, ___) \
@@ skipping 216 matching lines @@
 
 // After a comparison, the condition NEXT_IS_TRUE means the following
 // instruction is executed if the comparision is true and skipped over overwise.
 // Conidition NEXT_IS_FALSE means the following instruction is executed if the
 // comparison is false and skipped over otherwise.
 enum Condition { NEXT_IS_TRUE, NEXT_IS_FALSE };
 
 }  // namespace dart
 
 #endif  // RUNTIME_VM_CONSTANTS_DBC_H_