Port of optimized ICs for external and pixel arrays from ia32 to ARM.

src/arm/macro-assembler-arm.h

 // Copyright 2006-2009 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 221 matching lines @@
                                  Register length,
                                  Register scratch1,
                                  Register scratch2,
                                  Label* gc_required);
   void AllocateAsciiConsString(Register result,
                                Register length,
                                Register scratch1,
                                Register scratch2,
                                Label* gc_required);
 
+  // Allocates a heap number or jumps to the need_gc label if the young space
+  // is full and a scavenge is needed.
+  void AllocateHeapNumber(Register result,
+                          Register scratch1,
+                          Register scratch2,
+                          Label* gc_required);
 
   // ---------------------------------------------------------------------------
   // Support functions.
 
   // Try to get function prototype of a function and puts the value in
   // the result register. Checks that the function really is a
   // function and jumps to the miss label if the fast checks fail. The
   // function register will be untouched; the other registers may be
   // clobbered.
   void TryGetFunctionPrototype(Register function,
@@ skipping 60 matching lines @@
   void IllegalOperation(int num_arguments);
 
   // Get the number of least significant bits from a register
   void GetLeastBitsFromSmi(Register dst, Register src, int num_least_bits);
 
   // Uses VFP instructions to Convert a Smi to a double.
   void IntegerToDoubleConversionWithVFP3(Register inReg,
                                          Register outHighReg,
                                          Register outLowReg);
 
+  // Count leading zeros in a 32 bit word.  On ARM5 and later it uses the clz
+  // instruction.  On pre-ARM5 hardware this routine gives the wrong answer
+  // for 0 (31 instead of 32).
+  void CountLeadingZeros(Register source,
+                         Register scratch,
+                         Register zeros);
 
   // ---------------------------------------------------------------------------
   // Runtime calls
 
   // Call a code stub.
   void CallStub(CodeStub* stub, Condition cond = al);
 
   // Call a code stub.
   void TailCallStub(CodeStub* stub, Condition cond = al);
 
@@ skipping 170 matching lines @@
 #define __FILE_LINE__ __FILE__ ":" CODE_COVERAGE_TOSTRING(__LINE__)
 #define ACCESS_MASM(masm) masm->stop(__FILE_LINE__); masm->
 #else
 #define ACCESS_MASM(masm) masm->
 #endif
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_ARM_MACRO_ASSEMBLER_ARM_H_