[ic] Delete old KeyedLoadIC code

src/arm/macro-assembler-arm.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 <limits.h>  // For LONG_MIN, LONG_MAX.
 
 #if V8_TARGET_ARCH_ARM
 
 #include "src/base/bits.h"
 #include "src/base/division-by-constant.h"
@@ skipping 1865 matching lines @@
   eor(t0, t0, Operand(t0, LSR, 4));
   // hash = hash * 2057;
   mov(scratch, Operand(t0, LSL, 11));
   add(t0, t0, Operand(t0, LSL, 3));
   add(t0, t0, scratch);
   // hash = hash ^ (hash >> 16);
   eor(t0, t0, Operand(t0, LSR, 16));
   bic(t0, t0, Operand(0xc0000000u));
 }
 
-
-void MacroAssembler::LoadFromNumberDictionary(Label* miss,
-                                              Register elements,
-                                              Register key,
-                                              Register result,
-                                              Register t0,
-                                              Register t1,
-                                              Register t2) {
-  // Register use:
-  //
-  // elements - holds the slow-case elements of the receiver on entry.
-  //            Unchanged unless 'result' is the same register.
-  //
-  // key      - holds the smi key on entry.
-  //            Unchanged unless 'result' is the same register.
-  //
-  // result   - holds the result on exit if the load succeeded.
-  //            Allowed to be the same as 'key' or 'result'.
-  //            Unchanged on bailout so 'key' or 'result' can be used
-  //            in further computation.
-  //
-  // Scratch registers:
-  //
-  // t0 - holds the untagged key on entry and holds the hash once computed.
-  //
-  // t1 - used to hold the capacity mask of the dictionary
-  //
-  // t2 - used for the index into the dictionary.
-  Label done;
-
-  GetNumberHash(t0, t1);
-
-  // Compute the capacity mask.
-  ldr(t1, FieldMemOperand(elements, SeededNumberDictionary::kCapacityOffset));
-  SmiUntag(t1);
-  sub(t1, t1, Operand(1));
-
-  // Generate an unrolled loop that performs a few probes before giving up.
-  for (int i = 0; i < kNumberDictionaryProbes; i++) {
-    // Use t2 for index calculations and keep the hash intact in t0.
-    mov(t2, t0);
-    // Compute the masked index: (hash + i + i * i) & mask.
-    if (i > 0) {
-      add(t2, t2, Operand(SeededNumberDictionary::GetProbeOffset(i)));
-    }
-    and_(t2, t2, Operand(t1));
-
-    // Scale the index by multiplying by the element size.
-    DCHECK(SeededNumberDictionary::kEntrySize == 3);
-    add(t2, t2, Operand(t2, LSL, 1));  // t2 = t2 * 3
-
-    // Check if the key is identical to the name.
-    add(t2, elements, Operand(t2, LSL, kPointerSizeLog2));
-    ldr(ip, FieldMemOperand(t2, SeededNumberDictionary::kElementsStartOffset));
-    cmp(key, Operand(ip));
-    if (i != kNumberDictionaryProbes - 1) {
-      b(eq, &done);
-    } else {
-      b(ne, miss);
-    }
-  }
-
-  bind(&done);
-  // Check that the value is a field property.
-  // t2: elements + (index * kPointerSize)
-  const int kDetailsOffset =
-      SeededNumberDictionary::kElementsStartOffset + 2 * kPointerSize;
-  ldr(t1, FieldMemOperand(t2, kDetailsOffset));
-  DCHECK_EQ(DATA, 0);
-  tst(t1, Operand(Smi::FromInt(PropertyDetails::TypeField::kMask)));
-  b(ne, miss);
-
-  // Get the value at the masked, scaled index and return.
-  const int kValueOffset =
-      SeededNumberDictionary::kElementsStartOffset + kPointerSize;
-  ldr(result, FieldMemOperand(t2, kValueOffset));
-}
-
-
 void MacroAssembler::Allocate(int object_size,
                               Register result,
                               Register scratch1,
                               Register scratch2,
                               Label* gc_required,
                               AllocationFlags flags) {
   DCHECK(object_size <= kMaxRegularHeapObjectSize);
   DCHECK((flags & ALLOCATION_FOLDED) == 0);
   if (!FLAG_inline_new) {
     if (emit_debug_code()) {
@@ skipping 436 matching lines @@
 }
 
 
 void MacroAssembler::CompareRoot(Register obj,
                                  Heap::RootListIndex index) {
   DCHECK(!obj.is(ip));
   LoadRoot(ip, index);
   cmp(obj, ip);
 }
 
-
-void MacroAssembler::CheckFastElements(Register map,
-                                       Register scratch,
-                                       Label* fail) {
-  STATIC_ASSERT(FAST_SMI_ELEMENTS == 0);
-  STATIC_ASSERT(FAST_HOLEY_SMI_ELEMENTS == 1);
-  STATIC_ASSERT(FAST_ELEMENTS == 2);
-  STATIC_ASSERT(FAST_HOLEY_ELEMENTS == 3);
-  ldrb(scratch, FieldMemOperand(map, Map::kBitField2Offset));
-  cmp(scratch, Operand(Map::kMaximumBitField2FastHoleyElementValue));
-  b(hi, fail);
-}
-
-
 void MacroAssembler::CheckFastObjectElements(Register map,
                                              Register scratch,
                                              Label* fail) {
   STATIC_ASSERT(FAST_SMI_ELEMENTS == 0);
   STATIC_ASSERT(FAST_HOLEY_SMI_ELEMENTS == 1);
   STATIC_ASSERT(FAST_ELEMENTS == 2);
   STATIC_ASSERT(FAST_HOLEY_ELEMENTS == 3);
   ldrb(scratch, FieldMemOperand(map, Map::kBitField2Offset));
   cmp(scratch, Operand(Map::kMaximumBitField2FastHoleySmiElementValue));
   b(ls, fail);
@@ skipping 1722 matching lines @@
     }
   }
   if (mag.shift > 0) mov(result, Operand(result, ASR, mag.shift));
   add(result, result, Operand(dividend, LSR, 31));
 }
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_ARM