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Diffstat (limited to 'deps/v8/src/ia32/ic-ia32.cc')
-rw-r--r--deps/v8/src/ia32/ic-ia32.cc59
1 files changed, 34 insertions, 25 deletions
diff --git a/deps/v8/src/ia32/ic-ia32.cc b/deps/v8/src/ia32/ic-ia32.cc
index bb1d678e0b..3a937900cc 100644
--- a/deps/v8/src/ia32/ic-ia32.cc
+++ b/deps/v8/src/ia32/ic-ia32.cc
@@ -538,20 +538,30 @@ void KeyedLoadIC::GenerateGeneric(MacroAssembler* masm) {
// Load the key (consisting of map and symbol) from the cache and
// check for match.
- Label try_second_entry, hit_on_first_entry, load_in_object_property;
+ Label load_in_object_property;
+ static const int kEntriesPerBucket = KeyedLookupCache::kEntriesPerBucket;
+ Label hit_on_nth_entry[kEntriesPerBucket];
ExternalReference cache_keys =
ExternalReference::keyed_lookup_cache_keys(masm->isolate());
- __ mov(edi, ecx);
- __ shl(edi, kPointerSizeLog2 + 1);
- __ cmp(ebx, Operand::StaticArray(edi, times_1, cache_keys));
- __ j(not_equal, &try_second_entry);
- __ add(edi, Immediate(kPointerSize));
- __ cmp(eax, Operand::StaticArray(edi, times_1, cache_keys));
- __ j(equal, &hit_on_first_entry);
- __ bind(&try_second_entry);
+ for (int i = 0; i < kEntriesPerBucket - 1; i++) {
+ Label try_next_entry;
+ __ mov(edi, ecx);
+ __ shl(edi, kPointerSizeLog2 + 1);
+ if (i != 0) {
+ __ add(edi, Immediate(kPointerSize * i * 2));
+ }
+ __ cmp(ebx, Operand::StaticArray(edi, times_1, cache_keys));
+ __ j(not_equal, &try_next_entry);
+ __ add(edi, Immediate(kPointerSize));
+ __ cmp(eax, Operand::StaticArray(edi, times_1, cache_keys));
+ __ j(equal, &hit_on_nth_entry[i]);
+ __ bind(&try_next_entry);
+ }
+
__ lea(edi, Operand(ecx, 1));
__ shl(edi, kPointerSizeLog2 + 1);
+ __ add(edi, Immediate(kPointerSize * (kEntriesPerBucket - 1) * 2));
__ cmp(ebx, Operand::StaticArray(edi, times_1, cache_keys));
__ j(not_equal, &slow);
__ add(edi, Immediate(kPointerSize));
@@ -566,22 +576,21 @@ void KeyedLoadIC::GenerateGeneric(MacroAssembler* masm) {
ExternalReference cache_field_offsets =
ExternalReference::keyed_lookup_cache_field_offsets(masm->isolate());
- // Hit on second entry.
- __ add(ecx, Immediate(1));
- __ mov(edi,
- Operand::StaticArray(ecx, times_pointer_size, cache_field_offsets));
- __ movzx_b(ecx, FieldOperand(ebx, Map::kInObjectPropertiesOffset));
- __ sub(edi, ecx);
- __ j(above_equal, &property_array_property);
- __ jmp(&load_in_object_property);
-
- // Hit on first entry.
- __ bind(&hit_on_first_entry);
- __ mov(edi,
- Operand::StaticArray(ecx, times_pointer_size, cache_field_offsets));
- __ movzx_b(ecx, FieldOperand(ebx, Map::kInObjectPropertiesOffset));
- __ sub(edi, ecx);
- __ j(above_equal, &property_array_property);
+ // Hit on nth entry.
+ for (int i = kEntriesPerBucket - 1; i >= 0; i--) {
+ __ bind(&hit_on_nth_entry[i]);
+ if (i != 0) {
+ __ add(ecx, Immediate(i));
+ }
+ __ mov(edi,
+ Operand::StaticArray(ecx, times_pointer_size, cache_field_offsets));
+ __ movzx_b(ecx, FieldOperand(ebx, Map::kInObjectPropertiesOffset));
+ __ sub(edi, ecx);
+ __ j(above_equal, &property_array_property);
+ if (i != 0) {
+ __ jmp(&load_in_object_property);
+ }
+ }
// Load in-object property.
__ bind(&load_in_object_property);