X87: Remove dead code for inline string hashing.

src/x87/code-stubs-x87.cc

 // Copyright 2012 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.
 
 #include "src/v8.h"
 
 #if V8_TARGET_ARCH_X87
 
 #include "src/base/bits.h"
 #include "src/bootstrapper.h"
@@ skipping 2552 matching lines @@
   __ mov_b(Operand(dest, 0), scratch);
   __ inc(src);
   __ inc(dest);
   __ dec(count);
   __ j(not_zero, &loop);
 
   __ bind(&done);
 }
 
 
-void StringHelper::GenerateHashInit(MacroAssembler* masm,
-                                    Register hash,
-                                    Register character,
-                                    Register scratch) {
-  // hash = (seed + character) + ((seed + character) << 10);
-  if (masm->serializer_enabled()) {
-    __ LoadRoot(scratch, Heap::kHashSeedRootIndex);
-    __ SmiUntag(scratch);
-    __ add(scratch, character);
-    __ mov(hash, scratch);
-    __ shl(scratch, 10);
-    __ add(hash, scratch);
-  } else {
-    int32_t seed = masm->isolate()->heap()->HashSeed();
-    __ lea(scratch, Operand(character, seed));
-    __ shl(scratch, 10);
-    __ lea(hash, Operand(scratch, character, times_1, seed));
-  }
-  // hash ^= hash >> 6;
-  __ mov(scratch, hash);
-  __ shr(scratch, 6);
-  __ xor_(hash, scratch);
-}
-
-
-void StringHelper::GenerateHashAddCharacter(MacroAssembler* masm,
-                                            Register hash,
-                                            Register character,
-                                            Register scratch) {
-  // hash += character;
-  __ add(hash, character);
-  // hash += hash << 10;
-  __ mov(scratch, hash);
-  __ shl(scratch, 10);
-  __ add(hash, scratch);
-  // hash ^= hash >> 6;
-  __ mov(scratch, hash);
-  __ shr(scratch, 6);
-  __ xor_(hash, scratch);
-}
-
-
-void StringHelper::GenerateHashGetHash(MacroAssembler* masm,
-                                       Register hash,
-                                       Register scratch) {
-  // hash += hash << 3;
-  __ mov(scratch, hash);
-  __ shl(scratch, 3);
-  __ add(hash, scratch);
-  // hash ^= hash >> 11;
-  __ mov(scratch, hash);
-  __ shr(scratch, 11);
-  __ xor_(hash, scratch);
-  // hash += hash << 15;
-  __ mov(scratch, hash);
-  __ shl(scratch, 15);
-  __ add(hash, scratch);
-
-  __ and_(hash, String::kHashBitMask);
-
-  // if (hash == 0) hash = 27;
-  Label hash_not_zero;
-  __ j(not_zero, &hash_not_zero, Label::kNear);
-  __ mov(hash, Immediate(StringHasher::kZeroHash));
-  __ bind(&hash_not_zero);
-}
-
-
 void SubStringStub::Generate(MacroAssembler* masm) {
   Label runtime;
 
   // Stack frame on entry.
   //  esp[0]: return address
   //  esp[4]: to
   //  esp[8]: from
   //  esp[12]: string
 
   // Make sure first argument is a string.
@@ skipping 1740 matching lines @@
                               Operand(ebp, 7 * kPointerSize),
                               NULL);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X87