diff options
Diffstat (limited to 'deps/v8/src/ia32/ic-ia32.cc')
| -rw-r--r-- | deps/v8/src/ia32/ic-ia32.cc | 164 |
1 files changed, 86 insertions, 78 deletions
diff --git a/deps/v8/src/ia32/ic-ia32.cc b/deps/v8/src/ia32/ic-ia32.cc index a591af125..eac273952 100644 --- a/deps/v8/src/ia32/ic-ia32.cc +++ b/deps/v8/src/ia32/ic-ia32.cc @@ -218,13 +218,13 @@ static void GenerateDictionaryStore(MacroAssembler* masm, void LoadIC::GenerateArrayLength(MacroAssembler* masm) { // ----------- S t a t e ------------- + // -- eax : receiver // -- ecx : name - // -- edx : receiver // -- esp[0] : return address // ----------------------------------- Label miss; - StubCompiler::GenerateLoadArrayLength(masm, edx, eax, &miss); + StubCompiler::GenerateLoadArrayLength(masm, eax, edx, &miss); __ bind(&miss); StubCompiler::GenerateLoadMiss(masm, Code::LOAD_IC); } @@ -233,13 +233,13 @@ void LoadIC::GenerateArrayLength(MacroAssembler* masm) { void LoadIC::GenerateStringLength(MacroAssembler* masm, bool support_wrappers) { // ----------- S t a t e ------------- + // -- eax : receiver // -- ecx : name - // -- edx : receiver // -- esp[0] : return address // ----------------------------------- Label miss; - StubCompiler::GenerateLoadStringLength(masm, edx, eax, ebx, &miss, + StubCompiler::GenerateLoadStringLength(masm, eax, edx, ebx, &miss, support_wrappers); __ bind(&miss); StubCompiler::GenerateLoadMiss(masm, Code::LOAD_IC); @@ -248,13 +248,13 @@ void LoadIC::GenerateStringLength(MacroAssembler* masm, void LoadIC::GenerateFunctionPrototype(MacroAssembler* masm) { // ----------- S t a t e ------------- + // -- eax : receiver // -- ecx : name - // -- edx : receiver // -- esp[0] : return address // ----------------------------------- Label miss; - StubCompiler::GenerateLoadFunctionPrototype(masm, edx, eax, ebx, &miss); + StubCompiler::GenerateLoadFunctionPrototype(masm, eax, edx, ebx, &miss); __ bind(&miss); StubCompiler::GenerateLoadMiss(masm, Code::LOAD_IC); } @@ -443,7 +443,7 @@ static Operand GenerateUnmappedArgumentsLookup(MacroAssembler* masm, void KeyedLoadIC::GenerateGeneric(MacroAssembler* masm) { // ----------- S t a t e ------------- - // -- ecx : key + // -- eax : key // -- edx : receiver // -- esp[0] : return address // ----------------------------------- @@ -451,34 +451,39 @@ void KeyedLoadIC::GenerateGeneric(MacroAssembler* masm) { Label probe_dictionary, check_number_dictionary; // Check that the key is a smi. - __ JumpIfNotSmi(ecx, &check_string); + __ JumpIfNotSmi(eax, &check_string); __ bind(&index_smi); // Now the key is known to be a smi. This place is also jumped to from // where a numeric string is converted to a smi. GenerateKeyedLoadReceiverCheck( - masm, edx, eax, Map::kHasIndexedInterceptor, &slow); + masm, edx, ecx, Map::kHasIndexedInterceptor, &slow); // Check the receiver's map to see if it has fast elements. - __ CheckFastElements(eax, &check_number_dictionary); - - GenerateFastArrayLoad(masm, edx, ecx, eax, eax, NULL, &slow); + __ CheckFastElements(ecx, &check_number_dictionary); + + GenerateFastArrayLoad(masm, + edx, + eax, + ecx, + eax, + NULL, + &slow); Isolate* isolate = masm->isolate(); Counters* counters = isolate->counters(); __ IncrementCounter(counters->keyed_load_generic_smi(), 1); __ ret(0); - __ bind(&check_number_dictionary); - __ mov(ebx, ecx); + __ mov(ebx, eax); __ SmiUntag(ebx); - __ mov(eax, FieldOperand(edx, JSObject::kElementsOffset)); + __ mov(ecx, FieldOperand(edx, JSObject::kElementsOffset)); // Check whether the elements is a number dictionary. // edx: receiver // ebx: untagged index - // ecx: key - // eax: elements - __ CheckMap(eax, + // eax: key + // ecx: elements + __ CheckMap(ecx, isolate->factory()->hash_table_map(), &slow, DONT_DO_SMI_CHECK); @@ -486,7 +491,13 @@ void KeyedLoadIC::GenerateGeneric(MacroAssembler* masm) { // Push receiver on the stack to free up a register for the dictionary // probing. __ push(edx); - __ LoadFromNumberDictionary(&slow_pop_receiver, eax, ecx, ebx, edx, edi, eax); + __ LoadFromNumberDictionary(&slow_pop_receiver, + ecx, + eax, + ebx, + edx, + edi, + eax); // Pop receiver before returning. __ pop(edx); __ ret(0); @@ -498,15 +509,15 @@ void KeyedLoadIC::GenerateGeneric(MacroAssembler* masm) { __ bind(&slow); // Slow case: jump to runtime. // edx: receiver - // ecx: key + // eax: key __ IncrementCounter(counters->keyed_load_generic_slow(), 1); GenerateRuntimeGetProperty(masm); __ bind(&check_string); - GenerateKeyStringCheck(masm, ecx, eax, ebx, &index_string, &slow); + GenerateKeyStringCheck(masm, eax, ecx, ebx, &index_string, &slow); GenerateKeyedLoadReceiverCheck( - masm, edx, eax, Map::kHasNamedInterceptor, &slow); + masm, edx, ecx, Map::kHasNamedInterceptor, &slow); // If the receiver is a fast-case object, check the keyed lookup // cache. Otherwise probe the dictionary. @@ -515,18 +526,15 @@ void KeyedLoadIC::GenerateGeneric(MacroAssembler* masm) { Immediate(isolate->factory()->hash_table_map())); __ j(equal, &probe_dictionary); - // The receiver's map is still in eax, compute the keyed lookup cache hash + // Load the map of the receiver, compute the keyed lookup cache hash // based on 32 bits of the map pointer and the string hash. - if (FLAG_debug_code) { - __ cmp(eax, FieldOperand(edx, HeapObject::kMapOffset)); - __ Check(equal, "Map is no longer in eax."); - } - __ mov(ebx, eax); // Keep the map around for later. - __ shr(eax, KeyedLookupCache::kMapHashShift); - __ mov(edi, FieldOperand(ecx, String::kHashFieldOffset)); + __ mov(ebx, FieldOperand(edx, HeapObject::kMapOffset)); + __ mov(ecx, ebx); + __ shr(ecx, KeyedLookupCache::kMapHashShift); + __ mov(edi, FieldOperand(eax, String::kHashFieldOffset)); __ shr(edi, String::kHashShift); - __ xor_(eax, edi); - __ and_(eax, KeyedLookupCache::kCapacityMask & KeyedLookupCache::kHashMask); + __ xor_(ecx, edi); + __ and_(ecx, KeyedLookupCache::kCapacityMask & KeyedLookupCache::kHashMask); // Load the key (consisting of map and symbol) from the cache and // check for match. @@ -538,7 +546,7 @@ void KeyedLoadIC::GenerateGeneric(MacroAssembler* masm) { for (int i = 0; i < kEntriesPerBucket - 1; i++) { Label try_next_entry; - __ mov(edi, eax); + __ mov(edi, ecx); __ shl(edi, kPointerSizeLog2 + 1); if (i != 0) { __ add(edi, Immediate(kPointerSize * i * 2)); @@ -546,25 +554,25 @@ void KeyedLoadIC::GenerateGeneric(MacroAssembler* masm) { __ cmp(ebx, Operand::StaticArray(edi, times_1, cache_keys)); __ j(not_equal, &try_next_entry); __ add(edi, Immediate(kPointerSize)); - __ cmp(ecx, Operand::StaticArray(edi, times_1, cache_keys)); + __ cmp(eax, Operand::StaticArray(edi, times_1, cache_keys)); __ j(equal, &hit_on_nth_entry[i]); __ bind(&try_next_entry); } - __ lea(edi, Operand(eax, 1)); + __ 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)); - __ cmp(ecx, Operand::StaticArray(edi, times_1, cache_keys)); + __ cmp(eax, Operand::StaticArray(edi, times_1, cache_keys)); __ j(not_equal, &slow); // Get field offset. // edx : receiver // ebx : receiver's map - // ecx : key - // eax : lookup cache index + // eax : key + // ecx : lookup cache index ExternalReference cache_field_offsets = ExternalReference::keyed_lookup_cache_field_offsets(masm->isolate()); @@ -572,12 +580,12 @@ void KeyedLoadIC::GenerateGeneric(MacroAssembler* masm) { for (int i = kEntriesPerBucket - 1; i >= 0; i--) { __ bind(&hit_on_nth_entry[i]); if (i != 0) { - __ add(eax, Immediate(i)); + __ add(ecx, Immediate(i)); } __ mov(edi, - Operand::StaticArray(eax, times_pointer_size, cache_field_offsets)); - __ movzx_b(eax, FieldOperand(ebx, Map::kInObjectPropertiesOffset)); - __ sub(edi, eax); + 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); @@ -586,9 +594,9 @@ void KeyedLoadIC::GenerateGeneric(MacroAssembler* masm) { // Load in-object property. __ bind(&load_in_object_property); - __ movzx_b(eax, FieldOperand(ebx, Map::kInstanceSizeOffset)); - __ add(eax, edi); - __ mov(eax, FieldOperand(edx, eax, times_pointer_size, 0)); + __ movzx_b(ecx, FieldOperand(ebx, Map::kInstanceSizeOffset)); + __ add(ecx, edi); + __ mov(eax, FieldOperand(edx, ecx, times_pointer_size, 0)); __ IncrementCounter(counters->keyed_load_generic_lookup_cache(), 1); __ ret(0); @@ -604,16 +612,16 @@ void KeyedLoadIC::GenerateGeneric(MacroAssembler* masm) { // exists. __ bind(&probe_dictionary); - __ mov(eax, FieldOperand(edx, JSObject::kMapOffset)); - __ movzx_b(eax, FieldOperand(eax, Map::kInstanceTypeOffset)); - GenerateGlobalInstanceTypeCheck(masm, eax, &slow); + __ mov(ecx, FieldOperand(edx, JSObject::kMapOffset)); + __ movzx_b(ecx, FieldOperand(ecx, Map::kInstanceTypeOffset)); + GenerateGlobalInstanceTypeCheck(masm, ecx, &slow); - GenerateDictionaryLoad(masm, &slow, ebx, ecx, eax, edi, eax); + GenerateDictionaryLoad(masm, &slow, ebx, eax, ecx, edi, eax); __ IncrementCounter(counters->keyed_load_generic_symbol(), 1); __ ret(0); __ bind(&index_string); - __ IndexFromHash(ebx, ecx); + __ IndexFromHash(ebx, eax); // Now jump to the place where smi keys are handled. __ jmp(&index_smi); } @@ -621,15 +629,15 @@ void KeyedLoadIC::GenerateGeneric(MacroAssembler* masm) { void KeyedLoadIC::GenerateString(MacroAssembler* masm) { // ----------- S t a t e ------------- - // -- ecx : key (index) + // -- eax : key (index) // -- edx : receiver // -- esp[0] : return address // ----------------------------------- Label miss; Register receiver = edx; - Register index = ecx; - Register scratch = ebx; + Register index = eax; + Register scratch = ecx; Register result = eax; StringCharAtGenerator char_at_generator(receiver, @@ -653,7 +661,7 @@ void KeyedLoadIC::GenerateString(MacroAssembler* masm) { void KeyedLoadIC::GenerateIndexedInterceptor(MacroAssembler* masm) { // ----------- S t a t e ------------- - // -- ecx : key + // -- eax : key // -- edx : receiver // -- esp[0] : return address // ----------------------------------- @@ -663,24 +671,24 @@ void KeyedLoadIC::GenerateIndexedInterceptor(MacroAssembler* masm) { __ JumpIfSmi(edx, &slow); // Check that the key is an array index, that is Uint32. - __ test(ecx, Immediate(kSmiTagMask | kSmiSignMask)); + __ test(eax, Immediate(kSmiTagMask | kSmiSignMask)); __ j(not_zero, &slow); // Get the map of the receiver. - __ mov(eax, FieldOperand(edx, HeapObject::kMapOffset)); + __ mov(ecx, FieldOperand(edx, HeapObject::kMapOffset)); // Check that it has indexed interceptor and access checks // are not enabled for this object. - __ movzx_b(eax, FieldOperand(eax, Map::kBitFieldOffset)); - __ and_(eax, Immediate(kSlowCaseBitFieldMask)); - __ cmp(eax, Immediate(1 << Map::kHasIndexedInterceptor)); + __ movzx_b(ecx, FieldOperand(ecx, Map::kBitFieldOffset)); + __ and_(ecx, Immediate(kSlowCaseBitFieldMask)); + __ cmp(ecx, Immediate(1 << Map::kHasIndexedInterceptor)); __ j(not_zero, &slow); // Everything is fine, call runtime. - __ pop(eax); + __ pop(ecx); __ push(edx); // receiver - __ push(ecx); // key - __ push(eax); // return address + __ push(eax); // key + __ push(ecx); // return address // Perform tail call to the entry. ExternalReference ref = @@ -695,20 +703,20 @@ void KeyedLoadIC::GenerateIndexedInterceptor(MacroAssembler* masm) { void KeyedLoadIC::GenerateNonStrictArguments(MacroAssembler* masm) { // ----------- S t a t e ------------- - // -- ecx : key + // -- eax : key // -- edx : receiver // -- esp[0] : return address // ----------------------------------- Label slow, notin; Factory* factory = masm->isolate()->factory(); Operand mapped_location = - GenerateMappedArgumentsLookup(masm, edx, ecx, ebx, eax, ¬in, &slow); + GenerateMappedArgumentsLookup(masm, edx, eax, ebx, ecx, ¬in, &slow); __ mov(eax, mapped_location); __ Ret(); __ bind(¬in); // The unmapped lookup expects that the parameter map is in ebx. Operand unmapped_location = - GenerateUnmappedArgumentsLookup(masm, ecx, ebx, eax, &slow); + GenerateUnmappedArgumentsLookup(masm, eax, ebx, ecx, &slow); __ cmp(unmapped_location, factory->the_hole_value()); __ j(equal, &slow); __ mov(eax, unmapped_location); @@ -1300,15 +1308,15 @@ void KeyedCallIC::GenerateNormal(MacroAssembler* masm, int argc) { void LoadIC::GenerateMegamorphic(MacroAssembler* masm) { // ----------- S t a t e ------------- + // -- eax : receiver // -- ecx : name - // -- edx : receiver // -- esp[0] : return address // ----------------------------------- // Probe the stub cache. Code::Flags flags = Code::ComputeFlags(Code::LOAD_IC, MONOMORPHIC); - Isolate::Current()->stub_cache()->GenerateProbe(masm, flags, edx, ecx, ebx, - eax); + Isolate::Current()->stub_cache()->GenerateProbe(masm, flags, eax, ecx, ebx, + edx); // Cache miss: Jump to runtime. GenerateMiss(masm); @@ -1317,17 +1325,17 @@ void LoadIC::GenerateMegamorphic(MacroAssembler* masm) { void LoadIC::GenerateNormal(MacroAssembler* masm) { // ----------- S t a t e ------------- + // -- eax : receiver // -- ecx : name - // -- edx : receiver // -- esp[0] : return address // ----------------------------------- Label miss; - GenerateStringDictionaryReceiverCheck(masm, edx, eax, ebx, &miss); + GenerateStringDictionaryReceiverCheck(masm, eax, edx, ebx, &miss); - // eax: elements + // edx: elements // Search the dictionary placing the result in eax. - GenerateDictionaryLoad(masm, &miss, eax, ecx, edi, ebx, eax); + GenerateDictionaryLoad(masm, &miss, edx, ecx, edi, ebx, eax); __ ret(0); // Cache miss: Jump to runtime. @@ -1338,15 +1346,15 @@ void LoadIC::GenerateNormal(MacroAssembler* masm) { void LoadIC::GenerateMiss(MacroAssembler* masm) { // ----------- S t a t e ------------- + // -- eax : receiver // -- ecx : name - // -- edx : receiver // -- esp[0] : return address // ----------------------------------- __ IncrementCounter(masm->isolate()->counters()->load_miss(), 1); __ pop(ebx); - __ push(edx); // receiver + __ push(eax); // receiver __ push(ecx); // name __ push(ebx); // return address @@ -1359,7 +1367,7 @@ void LoadIC::GenerateMiss(MacroAssembler* masm) { void KeyedLoadIC::GenerateMiss(MacroAssembler* masm, bool force_generic) { // ----------- S t a t e ------------- - // -- ecx : key + // -- eax : key // -- edx : receiver // -- esp[0] : return address // ----------------------------------- @@ -1368,7 +1376,7 @@ void KeyedLoadIC::GenerateMiss(MacroAssembler* masm, bool force_generic) { __ pop(ebx); __ push(edx); // receiver - __ push(ecx); // name + __ push(eax); // name __ push(ebx); // return address // Perform tail call to the entry. @@ -1382,14 +1390,14 @@ void KeyedLoadIC::GenerateMiss(MacroAssembler* masm, bool force_generic) { void KeyedLoadIC::GenerateRuntimeGetProperty(MacroAssembler* masm) { // ----------- S t a t e ------------- - // -- ecx : key + // -- eax : key // -- edx : receiver // -- esp[0] : return address // ----------------------------------- __ pop(ebx); __ push(edx); // receiver - __ push(ecx); // name + __ push(eax); // name __ push(ebx); // return address // Perform tail call to the entry. |