Documentation: fix comments for CommuteCondition.

src/mips/constants-mips.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef  V8_MIPS_CONSTANTS_H_
 #define  V8_MIPS_CONSTANTS_H_
 
 // UNIMPLEMENTED_ macro for MIPS.
 #ifdef DEBUG
 #define UNIMPLEMENTED_MIPS()                                                  \
@@ skipping 486 matching lines @@
 // Returns the equivalent of !cc.
 // Negation of the default kNoCondition (-1) results in a non-default
 // no_condition value (-2). As long as tests for no_condition check
 // for condition < 0, this will work as expected.
 inline Condition NegateCondition(Condition cc) {
   ASSERT(cc != cc_always);
   return static_cast<Condition>(cc ^ 1);
 }
 
 
-// Commute a condition such that a cond b == b cond' b.
+// Commute a condition such that {a cond b == b cond' a}.
 inline Condition CommuteCondition(Condition cc) {
   switch (cc) {
     case Uless:
       return Ugreater;
     case Ugreater:
       return Uless;
     case Ugreater_equal:
       return Uless_equal;
     case Uless_equal:
       return Ugreater_equal;
@@ skipping 292 matching lines @@
 // JS argument slots size.
 const int kJSArgsSlotsSize = 0 * Instruction::kInstrSize;
 // Assembly builtins argument slots size.
 const int kBArgsSlotsSize = 0 * Instruction::kInstrSize;
 
 const int kBranchReturnOffset = 2 * Instruction::kInstrSize;
 
 } }   // namespace v8::internal
 
 #endif    // #ifndef V8_MIPS_CONSTANTS_H_