Remove ARM support for soft float (pre-VFP2)

src/mips/lithium-mips.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 1990 matching lines @@
     }
     result = new(zone()) LLoadKeyed(obj, key);
   } else {
     ASSERT(
         (instr->representation().IsInteger32() &&
          (elements_kind != EXTERNAL_FLOAT_ELEMENTS) &&
          (elements_kind != EXTERNAL_DOUBLE_ELEMENTS)) ||
         (instr->representation().IsDouble() &&
          ((elements_kind == EXTERNAL_FLOAT_ELEMENTS) ||
           (elements_kind == EXTERNAL_DOUBLE_ELEMENTS))));
-    // float->double conversion on non-VFP2 requires an extra scratch
+    // float->double conversion on soft float requires an extra scratch
     // register. For convenience, just mark the elements register as "UseTemp"
     // so that it can be used as a temp during the float->double conversion
     // after it's no longer needed after the float load.
     bool needs_temp =
         !CpuFeatures::IsSupported(FPU) &&
         (elements_kind == EXTERNAL_FLOAT_ELEMENTS);
     LOperand* external_pointer = needs_temp
         ? UseTempRegister(instr->elements())
         : UseRegister(instr->elements());
     result = new(zone()) LLoadKeyed(external_pointer, key);
@@ skipping 419 matching lines @@
 
 
 LInstruction* LChunkBuilder::DoLoadFieldByIndex(HLoadFieldByIndex* instr) {
   LOperand* object = UseRegister(instr->object());
   LOperand* index = UseRegister(instr->index());
   return DefineAsRegister(new(zone()) LLoadFieldByIndex(object, index));
 }
 
 
 } }  // namespace v8::internal