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Issue 2280007: Extend CallIC to support non-constant names.... (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: '' Created 10 years, 6 months ago
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1 // Copyright 2010 the V8 project authors. All rights reserved. 1 // Copyright 2010 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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1719 SetSourcePosition(expr->position()); 1719 SetSourcePosition(expr->position());
1720 InLoopFlag in_loop = (loop_depth() > 0) ? IN_LOOP : NOT_IN_LOOP; 1720 InLoopFlag in_loop = (loop_depth() > 0) ? IN_LOOP : NOT_IN_LOOP;
1721 Handle<Code> ic = CodeGenerator::ComputeCallInitialize(arg_count, in_loop); 1721 Handle<Code> ic = CodeGenerator::ComputeCallInitialize(arg_count, in_loop);
1722 __ call(ic, mode); 1722 __ call(ic, mode);
1723 // Restore context register. 1723 // Restore context register.
1724 __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset)); 1724 __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset));
1725 Apply(context_, eax); 1725 Apply(context_, eax);
1726 } 1726 }
1727 1727
1728 1728
1729 void FullCodeGenerator::EmitKeyedCallWithIC(Call* expr,
1730 Expression* key,
1731 RelocInfo::Mode mode) {
1732 // Code common for calls using the IC.
1733 ZoneList<Expression*>* args = expr->arguments();
1734 int arg_count = args->length();
1735 for (int i = 0; i < arg_count; i++) {
1736 VisitForValue(args->at(i), kStack);
1737 }
1738 VisitForValue(key, kAccumulator);
1739 __ mov(ecx, eax);
1740 // Record source position of the IC call.
1741 SetSourcePosition(expr->position());
1742 InLoopFlag in_loop = (loop_depth() > 0) ? IN_LOOP : NOT_IN_LOOP;
1743 Handle<Code> ic = CodeGenerator::ComputeKeyedCallInitialize(
1744 arg_count, in_loop);
1745 __ call(ic, mode);
1746 // Restore context register.
1747 __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset));
1748 Apply(context_, eax);
1749 }
1750
1751
1729 void FullCodeGenerator::EmitCallWithStub(Call* expr) { 1752 void FullCodeGenerator::EmitCallWithStub(Call* expr) {
1730 // Code common for calls using the call stub. 1753 // Code common for calls using the call stub.
1731 ZoneList<Expression*>* args = expr->arguments(); 1754 ZoneList<Expression*>* args = expr->arguments();
1732 int arg_count = args->length(); 1755 int arg_count = args->length();
1733 for (int i = 0; i < arg_count; i++) { 1756 for (int i = 0; i < arg_count; i++) {
1734 VisitForValue(args->at(i), kStack); 1757 VisitForValue(args->at(i), kStack);
1735 } 1758 }
1736 // Record source position for debugger. 1759 // Record source position for debugger.
1737 SetSourcePosition(expr->position()); 1760 SetSourcePosition(expr->position());
1738 InLoopFlag in_loop = (loop_depth() > 0) ? IN_LOOP : NOT_IN_LOOP; 1761 InLoopFlag in_loop = (loop_depth() > 0) ? IN_LOOP : NOT_IN_LOOP;
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1808 EmitCallWithStub(expr); 1831 EmitCallWithStub(expr);
1809 } else if (fun->AsProperty() != NULL) { 1832 } else if (fun->AsProperty() != NULL) {
1810 // Call to an object property. 1833 // Call to an object property.
1811 Property* prop = fun->AsProperty(); 1834 Property* prop = fun->AsProperty();
1812 Literal* key = prop->key()->AsLiteral(); 1835 Literal* key = prop->key()->AsLiteral();
1813 if (key != NULL && key->handle()->IsSymbol()) { 1836 if (key != NULL && key->handle()->IsSymbol()) {
1814 // Call to a named property, use call IC. 1837 // Call to a named property, use call IC.
1815 VisitForValue(prop->obj(), kStack); 1838 VisitForValue(prop->obj(), kStack);
1816 EmitCallWithIC(expr, key->handle(), RelocInfo::CODE_TARGET); 1839 EmitCallWithIC(expr, key->handle(), RelocInfo::CODE_TARGET);
1817 } else { 1840 } else {
1818 // Call to a keyed property, use keyed load IC followed by function 1841 // Call to a keyed property.
1819 // call. 1842 // For a synthetic property use keyed load IC followed by function call,
1843 // for a regular property use keyed CallIC.
1820 VisitForValue(prop->obj(), kStack); 1844 VisitForValue(prop->obj(), kStack);
1821 VisitForValue(prop->key(), kAccumulator);
1822 // Record source code position for IC call.
1823 SetSourcePosition(prop->position());
1824 if (prop->is_synthetic()) { 1845 if (prop->is_synthetic()) {
1846 VisitForValue(prop->key(), kAccumulator);
1847 // Record source code position for IC call.
1848 SetSourcePosition(prop->position());
1825 __ pop(edx); // We do not need to keep the receiver. 1849 __ pop(edx); // We do not need to keep the receiver.
1826 } else {
1827 __ mov(edx, Operand(esp, 0)); // Keep receiver, to call function on.
1828 }
1829 1850
1830 Handle<Code> ic(Builtins::builtin(Builtins::KeyedLoadIC_Initialize)); 1851 Handle<Code> ic(Builtins::builtin(Builtins::KeyedLoadIC_Initialize));
1831 __ call(ic, RelocInfo::CODE_TARGET); 1852 __ call(ic, RelocInfo::CODE_TARGET);
1832 // By emitting a nop we make sure that we do not have a "test eax,..." 1853 // By emitting a nop we make sure that we do not have a "test eax,..."
1833 // instruction after the call it is treated specially by the LoadIC code. 1854 // instruction after the call as it is treated specially
1834 __ nop(); 1855 // by the LoadIC code.
1835 if (prop->is_synthetic()) { 1856 __ nop();
1836 // Push result (function). 1857 // Push result (function).
1837 __ push(eax); 1858 __ push(eax);
1838 // Push Global receiver. 1859 // Push Global receiver.
1839 __ mov(ecx, CodeGenerator::GlobalObject()); 1860 __ mov(ecx, CodeGenerator::GlobalObject());
1840 __ push(FieldOperand(ecx, GlobalObject::kGlobalReceiverOffset)); 1861 __ push(FieldOperand(ecx, GlobalObject::kGlobalReceiverOffset));
1862 EmitCallWithStub(expr);
1841 } else { 1863 } else {
1842 // Pop receiver. 1864 EmitKeyedCallWithIC(expr, prop->key(), RelocInfo::CODE_TARGET);
1843 __ pop(ebx);
1844 // Push result (function).
1845 __ push(eax);
1846 __ push(ebx);
1847 } 1865 }
1848 EmitCallWithStub(expr);
1849 } 1866 }
1850 } else { 1867 } else {
1851 // Call to some other expression. If the expression is an anonymous 1868 // Call to some other expression. If the expression is an anonymous
1852 // function literal not called in a loop, mark it as one that should 1869 // function literal not called in a loop, mark it as one that should
1853 // also use the full code generator. 1870 // also use the full code generator.
1854 FunctionLiteral* lit = fun->AsFunctionLiteral(); 1871 FunctionLiteral* lit = fun->AsFunctionLiteral();
1855 if (lit != NULL && 1872 if (lit != NULL &&
1856 lit->name()->Equals(Heap::empty_string()) && 1873 lit->name()->Equals(Heap::empty_string()) &&
1857 loop_depth() == 0) { 1874 loop_depth() == 0) {
1858 lit->set_try_full_codegen(true); 1875 lit->set_try_full_codegen(true);
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3234 // And return. 3251 // And return.
3235 __ ret(0); 3252 __ ret(0);
3236 } 3253 }
3237 3254
3238 3255
3239 #undef __ 3256 #undef __
3240 3257
3241 } } // namespace v8::internal 3258 } } // namespace v8::internal
3242 3259
3243 #endif // V8_TARGET_ARCH_IA32 3260 #endif // V8_TARGET_ARCH_IA32
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