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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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1904 1); | 1904 1); |
1905 } | 1905 } |
1906 | 1906 |
1907 HandlerFrontendFooter(&miss); | 1907 HandlerFrontendFooter(&miss); |
1908 | 1908 |
1909 // Return the generated code. | 1909 // Return the generated code. |
1910 return GetCode(type, name); | 1910 return GetCode(type, name); |
1911 } | 1911 } |
1912 | 1912 |
1913 | 1913 |
1914 Handle<Code> CallStubCompiler::CompileArrayPopCall( | |
1915 Handle<Object> object, | |
1916 Handle<JSObject> holder, | |
1917 Handle<Cell> cell, | |
1918 Handle<JSFunction> function, | |
1919 Handle<String> name, | |
1920 Code::StubType type) { | |
1921 // If object is not an array or is observed or sealed, bail out to regular | |
1922 // call. | |
1923 if (!object->IsJSArray() || | |
1924 !cell.is_null() || | |
1925 Handle<JSArray>::cast(object)->map()->is_observed() || | |
1926 !Handle<JSArray>::cast(object)->map()->is_extensible()) { | |
1927 return Handle<Code>::null(); | |
1928 } | |
1929 | |
1930 Label miss, return_undefined, call_builtin; | |
1931 | |
1932 HandlerFrontendHeader(object, holder, name, RECEIVER_MAP_CHECK, &miss); | |
1933 | |
1934 // Get the elements array of the object. | |
1935 __ mov(ebx, FieldOperand(edx, JSArray::kElementsOffset)); | |
1936 | |
1937 // Check that the elements are in fast mode and writable. | |
1938 __ cmp(FieldOperand(ebx, HeapObject::kMapOffset), | |
1939 Immediate(factory()->fixed_array_map())); | |
1940 __ j(not_equal, &call_builtin); | |
1941 | |
1942 // Get the array's length into ecx and calculate new length. | |
1943 __ mov(ecx, FieldOperand(edx, JSArray::kLengthOffset)); | |
1944 __ sub(ecx, Immediate(Smi::FromInt(1))); | |
1945 __ j(negative, &return_undefined); | |
1946 | |
1947 // Get the last element. | |
1948 STATIC_ASSERT(kSmiTagSize == 1); | |
1949 STATIC_ASSERT(kSmiTag == 0); | |
1950 __ mov(eax, FieldOperand(ebx, | |
1951 ecx, times_half_pointer_size, | |
1952 FixedArray::kHeaderSize)); | |
1953 __ cmp(eax, Immediate(factory()->the_hole_value())); | |
1954 __ j(equal, &call_builtin); | |
1955 | |
1956 // Set the array's length. | |
1957 __ mov(FieldOperand(edx, JSArray::kLengthOffset), ecx); | |
1958 | |
1959 // Fill with the hole. | |
1960 __ mov(FieldOperand(ebx, | |
1961 ecx, times_half_pointer_size, | |
1962 FixedArray::kHeaderSize), | |
1963 Immediate(factory()->the_hole_value())); | |
1964 const int argc = arguments().immediate(); | |
1965 __ ret((argc + 1) * kPointerSize); | |
1966 | |
1967 __ bind(&return_undefined); | |
1968 __ mov(eax, Immediate(factory()->undefined_value())); | |
1969 __ ret((argc + 1) * kPointerSize); | |
1970 | |
1971 __ bind(&call_builtin); | |
1972 __ TailCallExternalReference( | |
1973 ExternalReference(Builtins::c_ArrayPop, isolate()), | |
1974 argc + 1, | |
1975 1); | |
1976 | |
1977 HandlerFrontendFooter(&miss); | |
1978 | |
1979 // Return the generated code. | |
1980 return GetCode(type, name); | |
1981 } | |
1982 | |
1983 | |
1984 Handle<Code> CallStubCompiler::CompileFastApiCall( | 1914 Handle<Code> CallStubCompiler::CompileFastApiCall( |
1985 const CallOptimization& optimization, | 1915 const CallOptimization& optimization, |
1986 Handle<Object> object, | 1916 Handle<Object> object, |
1987 Handle<JSObject> holder, | 1917 Handle<JSObject> holder, |
1988 Handle<Cell> cell, | 1918 Handle<Cell> cell, |
1989 Handle<JSFunction> function, | 1919 Handle<JSFunction> function, |
1990 Handle<String> name) { | 1920 Handle<String> name) { |
1991 ASSERT(optimization.is_simple_api_call()); | 1921 ASSERT(optimization.is_simple_api_call()); |
1992 // Bail out if object is a global object as we don't want to | 1922 // Bail out if object is a global object as we don't want to |
1993 // repatch it to global receiver. | 1923 // repatch it to global receiver. |
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2575 // ----------------------------------- | 2505 // ----------------------------------- |
2576 TailCallBuiltin(masm, Builtins::kKeyedLoadIC_Miss); | 2506 TailCallBuiltin(masm, Builtins::kKeyedLoadIC_Miss); |
2577 } | 2507 } |
2578 | 2508 |
2579 | 2509 |
2580 #undef __ | 2510 #undef __ |
2581 | 2511 |
2582 } } // namespace v8::internal | 2512 } } // namespace v8::internal |
2583 | 2513 |
2584 #endif // V8_TARGET_ARCH_IA32 | 2514 #endif // V8_TARGET_ARCH_IA32 |
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