[intrinsics] Nuke %HasCachedArrayIndex and %GetCachedArrayIndex.

src/s390/macro-assembler-s390.h

 // Copyright 2014 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_S390_MACRO_ASSEMBLER_S390_H_
 #define V8_S390_MACRO_ASSEMBLER_S390_H_
 
 #include "src/assembler.h"
 #include "src/bailout-reason.h"
 #include "src/frames.h"
@@ skipping 1151 matching lines @@
   // Returns a condition that will be enabled if the object was a string.
   Condition IsObjectStringType(Register obj, Register type) {
     LoadP(type, FieldMemOperand(obj, HeapObject::kMapOffset));
     LoadlB(type, FieldMemOperand(type, Map::kInstanceTypeOffset));
     mov(r0, Operand(kIsNotStringMask));
     AndP(r0, type);
     DCHECK_EQ(0u, kStringTag);
     return eq;
   }
 
-  // Picks out an array index from the hash field.
-  // Register use:
-  //   hash - holds the index's hash. Clobbered.
-  //   index - holds the overwritten index on exit.
-  void IndexFromHash(Register hash, Register index);
-
   // Get the number of least significant bits from a register
   void GetLeastBitsFromSmi(Register dst, Register src, int num_least_bits);
   void GetLeastBitsFromInt32(Register dst, Register src, int mun_least_bits);
 
   // Load the value of a smi object into a FP double register. The register
   // scratch1 can be the same register as smi in which case smi will hold the
   // untagged value afterwards.
   void SmiToDouble(DoubleRegister value, Register smi);
 
   // Check if a double can be exactly represented as a signed 32-bit integer.
@@ skipping 697 matching lines @@
 inline MemOperand NativeContextMemOperand() {
   return ContextMemOperand(cp, Context::NATIVE_CONTEXT_INDEX);
 }
 
 #define ACCESS_MASM(masm) masm->
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_S390_MACRO_ASSEMBLER_S390_H_