Out-of-line constant pool on Arm: Stage 1 - Free up r7 for use as constant pool pointer register

src/arm/ic-arm.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 1376 matching lines @@
   Label slow, fast_object, fast_object_grow;
   Label fast_double, fast_double_grow;
   Label array, extra, check_if_double_array;
 
   // Register usage.
   Register value = r0;
   Register key = r1;
   Register receiver = r2;
   Register receiver_map = r3;
   Register elements_map = r6;
-  Register elements = r7;  // Elements array of the receiver.
+  Register elements = r9;  // Elements array of the receiver.
   // r4 and r5 are used as general scratch registers.
 
   // Check that the key is a smi.
   __ JumpIfNotSmi(key, &slow);
   // Check that the object isn't a smi.
   __ JumpIfSmi(receiver, &slow);
   // Get the map of the object.
   __ ldr(receiver_map, FieldMemOperand(receiver, HeapObject::kMapOffset));
   // Check that the receiver does not require access checks.  We need
   // to do this because this generic stub does not perform map checks.
@@ skipping 245 matching lines @@
   } else {
     ASSERT(Assembler::GetCondition(branch_instr) == ne);
     patcher.EmitCondition(eq);
   }
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM