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Issue 7084032: Add asserts and state tracking to ensure that we do not call (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: '' Created 9 years, 6 months ago
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1 // Copyright 2011 the V8 project authors. All rights reserved. 1 // Copyright 2011 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without 2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are 3 // modification, are permitted provided that the following conditions are
4 // met: 4 // met:
5 // 5 //
6 // * Redistributions of source code must retain the above copyright 6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer. 7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above 8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following 9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided 10 // disclaimer in the documentation and/or other materials provided
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921 Counters* counters = masm->isolate()->counters(); 921 Counters* counters = masm->isolate()->counters();
922 if (id == IC::kCallIC_Miss) { 922 if (id == IC::kCallIC_Miss) {
923 __ IncrementCounter(counters->call_miss(), 1); 923 __ IncrementCounter(counters->call_miss(), 1);
924 } else { 924 } else {
925 __ IncrementCounter(counters->keyed_call_miss(), 1); 925 __ IncrementCounter(counters->keyed_call_miss(), 1);
926 } 926 }
927 927
928 // Get the receiver of the function from the stack; 1 ~ return address. 928 // Get the receiver of the function from the stack; 1 ~ return address.
929 __ mov(edx, Operand(esp, (argc + 1) * kPointerSize)); 929 __ mov(edx, Operand(esp, (argc + 1) * kPointerSize));
930 930
931 // Enter an internal frame. 931 {
932 __ EnterInternalFrame(); 932 FrameScope scope(masm, StackFrame::INTERNAL);
933 933
934 // Push the receiver and the name of the function. 934 // Push the receiver and the name of the function.
935 __ push(edx); 935 __ push(edx);
936 __ push(ecx); 936 __ push(ecx);
937 937
938 // Call the entry. 938 // Call the entry.
939 CEntryStub stub(1); 939 CEntryStub stub(1);
940 __ mov(eax, Immediate(2)); 940 __ mov(eax, Immediate(2));
941 __ mov(ebx, Immediate(ExternalReference(IC_Utility(id), masm->isolate()))); 941 __ mov(ebx, Immediate(ExternalReference(IC_Utility(id), masm->isolate())));
942 __ CallStub(&stub); 942 __ CallStub(&stub);
943 943
944 // Move result to edi and exit the internal frame. 944 // Move result to edi and exit the internal frame.
945 __ mov(edi, eax); 945 __ mov(edi, eax);
946 __ LeaveInternalFrame(); 946 }
947 947
948 // Check if the receiver is a global object of some sort. 948 // Check if the receiver is a global object of some sort.
949 // This can happen only for regular CallIC but not KeyedCallIC. 949 // This can happen only for regular CallIC but not KeyedCallIC.
950 if (id == IC::kCallIC_Miss) { 950 if (id == IC::kCallIC_Miss) {
951 Label invoke, global; 951 Label invoke, global;
952 __ mov(edx, Operand(esp, (argc + 1) * kPointerSize)); // receiver 952 __ mov(edx, Operand(esp, (argc + 1) * kPointerSize)); // receiver
953 __ test(edx, Immediate(kSmiTagMask)); 953 __ test(edx, Immediate(kSmiTagMask));
954 __ j(zero, &invoke, Label::kNear); 954 __ j(zero, &invoke, Label::kNear);
955 __ mov(ebx, FieldOperand(edx, HeapObject::kMapOffset)); 955 __ mov(ebx, FieldOperand(edx, HeapObject::kMapOffset));
956 __ movzx_b(ebx, FieldOperand(ebx, Map::kInstanceTypeOffset)); 956 __ movzx_b(ebx, FieldOperand(ebx, Map::kInstanceTypeOffset));
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1083 __ IncrementCounter(counters->keyed_call_generic_smi_dict(), 1); 1083 __ IncrementCounter(counters->keyed_call_generic_smi_dict(), 1);
1084 __ jmp(&do_call); 1084 __ jmp(&do_call);
1085 1085
1086 __ bind(&slow_reload_receiver); 1086 __ bind(&slow_reload_receiver);
1087 __ mov(edx, Operand(esp, (argc + 1) * kPointerSize)); 1087 __ mov(edx, Operand(esp, (argc + 1) * kPointerSize));
1088 1088
1089 __ bind(&slow_load); 1089 __ bind(&slow_load);
1090 // This branch is taken when calling KeyedCallIC_Miss is neither required 1090 // This branch is taken when calling KeyedCallIC_Miss is neither required
1091 // nor beneficial. 1091 // nor beneficial.
1092 __ IncrementCounter(counters->keyed_call_generic_slow_load(), 1); 1092 __ IncrementCounter(counters->keyed_call_generic_slow_load(), 1);
1093 __ EnterInternalFrame(); 1093
1094 __ push(ecx); // save the key 1094 {
1095 __ push(edx); // pass the receiver 1095 FrameScope scope(masm, StackFrame::INTERNAL);
1096 __ push(ecx); // pass the key 1096 __ push(ecx); // save the key
1097 __ CallRuntime(Runtime::kKeyedGetProperty, 2); 1097 __ push(edx); // pass the receiver
1098 __ pop(ecx); // restore the key 1098 __ push(ecx); // pass the key
1099 __ LeaveInternalFrame(); 1099 __ CallRuntime(Runtime::kKeyedGetProperty, 2);
1100 __ pop(ecx); // restore the key
1101 // Leave the internal frame.
1102 }
1103
1100 __ mov(edi, eax); 1104 __ mov(edi, eax);
1101 __ jmp(&do_call); 1105 __ jmp(&do_call);
1102 1106
1103 __ bind(&check_string); 1107 __ bind(&check_string);
1104 GenerateKeyStringCheck(masm, ecx, eax, ebx, &index_string, &slow_call); 1108 GenerateKeyStringCheck(masm, ecx, eax, ebx, &index_string, &slow_call);
1105 1109
1106 // The key is known to be a symbol. 1110 // The key is known to be a symbol.
1107 // If the receiver is a regular JS object with slow properties then do 1111 // If the receiver is a regular JS object with slow properties then do
1108 // a quick inline probe of the receiver's dictionary. 1112 // a quick inline probe of the receiver's dictionary.
1109 // Otherwise do the monomorphic cache probe. 1113 // Otherwise do the monomorphic cache probe.
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1589 Condition cc = *jmp_address == Assembler::kJncShortOpcode 1593 Condition cc = *jmp_address == Assembler::kJncShortOpcode
1590 ? not_zero 1594 ? not_zero
1591 : zero; 1595 : zero;
1592 *jmp_address = static_cast<byte>(Assembler::kJccShortPrefix | cc); 1596 *jmp_address = static_cast<byte>(Assembler::kJccShortPrefix | cc);
1593 } 1597 }
1594 1598
1595 1599
1596 } } // namespace v8::internal 1600 } } // namespace v8::internal
1597 1601
1598 #endif // V8_TARGET_ARCH_IA32 1602 #endif // V8_TARGET_ARCH_IA32
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