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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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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931 void Builtins::Generate_NotifyLazyDeoptimized(MacroAssembler* masm) { | 931 void Builtins::Generate_NotifyLazyDeoptimized(MacroAssembler* masm) { |
932 Generate_NotifyDeoptimizedHelper(masm, Deoptimizer::LAZY); | 932 Generate_NotifyDeoptimizedHelper(masm, Deoptimizer::LAZY); |
933 } | 933 } |
934 | 934 |
935 | 935 |
936 void Builtins::Generate_OnStackReplacement(MacroAssembler* masm) { | 936 void Builtins::Generate_OnStackReplacement(MacroAssembler* masm) { |
937 // Lookup the function in the JavaScript frame. | 937 // Lookup the function in the JavaScript frame. |
938 __ ldr(r0, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset)); | 938 __ ldr(r0, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset)); |
939 { | 939 { |
940 FrameScope scope(masm, StackFrame::INTERNAL); | 940 FrameScope scope(masm, StackFrame::INTERNAL); |
941 // Lookup and calculate pc offset. | 941 // Pass function as argument. |
942 __ ldr(r1, MemOperand(fp, StandardFrameConstants::kCallerPCOffset)); | |
943 __ ldr(r2, FieldMemOperand(r0, JSFunction::kSharedFunctionInfoOffset)); | |
944 __ ldr(r2, FieldMemOperand(r2, SharedFunctionInfo::kCodeOffset)); | |
945 __ sub(r1, r1, Operand(Code::kHeaderSize - kHeapObjectTag)); | |
946 __ sub(r1, r1, r2); | |
947 __ SmiTag(r1); | |
948 | |
949 // Pass both function and pc offset as arguments. | |
950 __ push(r0); | 942 __ push(r0); |
951 __ push(r1); | 943 __ CallRuntime(Runtime::kCompileForOnStackReplacement, 1); |
952 __ CallRuntime(Runtime::kCompileForOnStackReplacement, 2); | |
953 } | 944 } |
954 | 945 |
955 // If the code object is null, just return to the unoptimized code. | 946 // If the code object is null, just return to the unoptimized code. |
956 Label skip; | 947 Label skip; |
957 __ cmp(r0, Operand(Smi::FromInt(0))); | 948 __ cmp(r0, Operand(Smi::FromInt(0))); |
958 __ b(ne, &skip); | 949 __ b(ne, &skip); |
959 __ Ret(); | 950 __ Ret(); |
960 | 951 |
961 __ bind(&skip); | 952 __ bind(&skip); |
962 | 953 |
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1482 __ bind(&dont_adapt_arguments); | 1473 __ bind(&dont_adapt_arguments); |
1483 __ Jump(r3); | 1474 __ Jump(r3); |
1484 } | 1475 } |
1485 | 1476 |
1486 | 1477 |
1487 #undef __ | 1478 #undef __ |
1488 | 1479 |
1489 } } // namespace v8::internal | 1480 } } // namespace v8::internal |
1490 | 1481 |
1491 #endif // V8_TARGET_ARCH_ARM | 1482 #endif // V8_TARGET_ARCH_ARM |
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