Optimize isFinite and isNaN.

src/mips/macro-assembler-mips.cc

Index: src/mips/macro-assembler-mips.cc
diff --git a/src/mips/macro-assembler-mips.cc b/src/mips/macro-assembler-mips.cc
index 1a37d659270686d88bfb16ab8a8e9fba03620a20..45e901bdb91d3eef2c97f9c99dfbd32e2947228d 100644
--- a/src/mips/macro-assembler-mips.cc
+++ b/src/mips/macro-assembler-mips.cc
@@ -2815,46 +2815,6 @@ void MacroAssembler::AllocateAsciiConsString(Register result,
 }
 
 
-void MacroAssembler::AllocateTwoByteSlicedString(Register result,
-                                                 Register length,
-                                                 Register scratch1,
-                                                 Register scratch2,
-                                                 Label* gc_required) {
-  AllocateInNewSpace(SlicedString::kSize,
-                     result,
-                     scratch1,
-                     scratch2,
-                     gc_required,
-                     TAG_OBJECT);
-
-  InitializeNewString(result,
-                      length,
-                      Heap::kSlicedStringMapRootIndex,
-                      scratch1,
-                      scratch2);
-}
-
-
-void MacroAssembler::AllocateAsciiSlicedString(Register result,
-                                               Register length,
-                                               Register scratch1,
-                                               Register scratch2,
-                                               Label* gc_required) {
-  AllocateInNewSpace(SlicedString::kSize,
-                     result,
-                     scratch1,
-                     scratch2,
-                     gc_required,
-                     TAG_OBJECT);
-
-  InitializeNewString(result,
-                      length,
-                      Heap::kSlicedAsciiStringMapRootIndex,
-                      scratch1,
-                      scratch2);
-}
-
-
 // Allocates a heap number or jumps to the label if the young space is full and
 // a scavenge is needed.
 void MacroAssembler::AllocateHeapNumber(Register result,
@@ -4253,9 +4213,11 @@ void MacroAssembler::PrepareCallCFunction(int num_arguments, Register scratch) {
   // mips, even though those argument slots are not normally used.
   // Remaining arguments are pushed on the stack, above (higher address than)
   // the argument slots.
+  ASSERT(StandardFrameConstants::kCArgsSlotsSize % kPointerSize == 0);
   int stack_passed_arguments = ((num_arguments <= kRegisterPassedArguments) ?
                                  0 : num_arguments - kRegisterPassedArguments) +
-                                kCArgSlotCount;
+                               (StandardFrameConstants::kCArgsSlotsSize /
+                               kPointerSize);
   if (frame_alignment > kPointerSize) {
     // Make stack end at alignment and make room for num_arguments - 4 words
     // and the original value of sp.
@@ -4327,9 +4289,11 @@ void MacroAssembler::CallCFunctionHelper(Register function,
 
   Call(function);
 
+  ASSERT(StandardFrameConstants::kCArgsSlotsSize % kPointerSize == 0);
   int stack_passed_arguments = ((num_arguments <= kRegisterPassedArguments) ?
                                 0 : num_arguments - kRegisterPassedArguments) +
-                               kCArgSlotCount;
+                               (StandardFrameConstants::kCArgsSlotsSize /
+                               kPointerSize);
 
   if (OS::ActivationFrameAlignment() > kPointerSize) {
     lw(sp, MemOperand(sp, stack_passed_arguments * kPointerSize));