MIPS: Fix long branch mode and FPU branches.

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_
 #include "src/globals.h"
 // UNIMPLEMENTED_ macro for MIPS.
 #ifdef DEBUG
 #define UNIMPLEMENTED_MIPS()                                                  \
@@ skipping 537 matching lines @@
   SELNEZ_C = ((2 << 3) + 7),  // COP1 on FPR registers.
   // COP1 Encoding of Function Field When rs=PS.
   // COP1X Encoding of Function Field.
   MADD_D = ((4 << 3) + 1),
 
   NULLSF = 0
 };
 
 
 // ----- Emulated conditions.
-// On MIPS we use this enum to abstract from conditionnal branch instructions.
+// On MIPS we use this enum to abstract from conditional branch instructions.
 // The 'U' prefix is used to specify unsigned comparisons.
-// Oppposite conditions must be paired as odd/even numbers
+// Opposite conditions must be paired as odd/even numbers
 // because 'NegateCondition' function flips LSB to negate condition.
 enum Condition {
   // Any value < 0 is considered no_condition.
   kNoCondition = -1,
   overflow = 0,
   no_overflow = 1,
   Uless = 2,
   Ugreater_equal = 3,
-  equal = 4,
-  not_equal = 5,
-  Uless_equal = 6,
-  Ugreater = 7,
+  Uless_equal = 4,
+  Ugreater = 5,
+  equal = 6,
+  not_equal = 7,  // Unordered or Not Equal.
   negative = 8,
   positive = 9,
   parity_even = 10,
   parity_odd = 11,
   less = 12,
   greater_equal = 13,
   less_equal = 14,
   greater = 15,
   ueq = 16,  // Unordered or Equal.
-  nue = 17,  // Not (Unordered or Equal).
+  ogl = 17,  // Ordered and Not Equal.
   cc_always = 18,
 
   // Aliases.
   carry = Uless,
   not_carry = Ugreater_equal,
   zero = equal,
   eq = equal,
   not_zero = not_equal,
   ne = not_equal,
   nz = not_equal,
   sign = negative,
   not_sign = positive,
   mi = negative,
   pl = positive,
   hi = Ugreater,
   ls = Uless_equal,
   ge = greater_equal,
   lt = less,
   gt = greater,
   le = less_equal,
   hs = Ugreater_equal,
   lo = Uless,
   al = cc_always,
+  ult = Uless,
+  uge = Ugreater_equal,
+  ule = Uless_equal,
+  ugt = Ugreater,
   cc_default = kNoCondition
 };
 
 
 // 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) {
   DCHECK(cc != cc_always);
   return static_cast<Condition>(cc ^ 1);
 }
 
 
+inline Condition NegateFpuCondition(Condition cc) {
+  DCHECK(cc != cc_always);
+  switch (cc) {
+    case ult:
+      return ge;
+    case ugt:
+      return le;
+    case uge:
+      return lt;
+    case ule:
+      return gt;
+    case lt:
+      return uge;
+    case gt:
+      return ule;
+    case ge:
+      return ult;
+    case le:
+      return ugt;
+    case eq:
+      return ne;
+    case ne:
+      return eq;
+    case ueq:
+      return ogl;
+    case ogl:
+      return ueq;
+    default:
+      return cc;
+  }
+}
+
+
 // 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:
@@ skipping 299 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_