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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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30 #include "codegen-inl.h" | 30 #include "codegen-inl.h" |
31 #include "fast-codegen.h" | 31 #include "fast-codegen.h" |
32 | 32 |
33 namespace v8 { | 33 namespace v8 { |
34 namespace internal { | 34 namespace internal { |
35 | 35 |
36 #define __ ACCESS_MASM(masm()) | 36 #define __ ACCESS_MASM(masm()) |
37 | 37 |
38 void FastCodeGenerator::EmitLoadReceiver(Register reg) { | 38 void FastCodeGenerator::EmitLoadReceiver(Register reg) { |
39 // Offset 2 is due to return address and saved frame pointer. | 39 // Offset 2 is due to return address and saved frame pointer. |
40 int index = 2 + function()->scope()->num_parameters(); | 40 int index = 2 + scope()->num_parameters(); |
41 __ ldr(reg, MemOperand(sp, index * kPointerSize)); | 41 __ ldr(reg, MemOperand(sp, index * kPointerSize)); |
42 } | 42 } |
43 | 43 |
44 | 44 |
45 void FastCodeGenerator::EmitReceiverMapCheck() { | 45 void FastCodeGenerator::EmitReceiverMapCheck() { |
46 Comment cmnt(masm(), ";; MapCheck(this)"); | 46 Comment cmnt(masm(), ";; MapCheck(this)"); |
47 if (FLAG_print_ir) { | 47 if (FLAG_print_ir) { |
48 PrintF("MapCheck(this)\n"); | 48 PrintF("MapCheck(this)\n"); |
49 } | 49 } |
50 | 50 |
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95 offset += FixedArray::kHeaderSize; | 95 offset += FixedArray::kHeaderSize; |
96 __ ldr(r2, FieldMemOperand(r1, JSObject::kPropertiesOffset)); | 96 __ ldr(r2, FieldMemOperand(r1, JSObject::kPropertiesOffset)); |
97 } | 97 } |
98 // Perform the store. | 98 // Perform the store. |
99 __ str(r0, FieldMemOperand(r2, offset)); | 99 __ str(r0, FieldMemOperand(r2, offset)); |
100 __ mov(r3, Operand(offset)); | 100 __ mov(r3, Operand(offset)); |
101 __ RecordWrite(r2, r3, ip); | 101 __ RecordWrite(r2, r3, ip); |
102 } | 102 } |
103 | 103 |
104 | 104 |
105 void FastCodeGenerator::Generate(FunctionLiteral* fun, CompilationInfo* info) { | 105 void FastCodeGenerator::Generate(CompilationInfo* info) { |
106 ASSERT(function_ == NULL); | |
107 ASSERT(info_ == NULL); | 106 ASSERT(info_ == NULL); |
108 function_ = fun; | |
109 info_ = info; | 107 info_ = info; |
110 | 108 |
111 // Save the caller's frame pointer and set up our own. | 109 // Save the caller's frame pointer and set up our own. |
112 Comment prologue_cmnt(masm(), ";; Prologue"); | 110 Comment prologue_cmnt(masm(), ";; Prologue"); |
113 __ stm(db_w, sp, r1.bit() | cp.bit() | fp.bit() | lr.bit()); | 111 __ stm(db_w, sp, r1.bit() | cp.bit() | fp.bit() | lr.bit()); |
114 __ add(fp, sp, Operand(2 * kPointerSize)); | 112 __ add(fp, sp, Operand(2 * kPointerSize)); |
115 // Note that we keep a live register reference to cp (context) at | 113 // Note that we keep a live register reference to cp (context) at |
116 // this point. | 114 // this point. |
117 | 115 |
118 // Receiver (this) is allocated to r1 if there are this properties. | 116 // Receiver (this) is allocated to r1 if there are this properties. |
119 if (has_this_properties()) EmitReceiverMapCheck(); | 117 if (has_this_properties()) EmitReceiverMapCheck(); |
120 | 118 |
121 VisitStatements(fun->body()); | 119 VisitStatements(function()->body()); |
122 | 120 |
123 Comment return_cmnt(masm(), ";; Return(<undefined>)"); | 121 Comment return_cmnt(masm(), ";; Return(<undefined>)"); |
124 __ LoadRoot(r0, Heap::kUndefinedValueRootIndex); | 122 __ LoadRoot(r0, Heap::kUndefinedValueRootIndex); |
125 | 123 |
126 Comment epilogue_cmnt(masm(), ";; Epilogue"); | 124 Comment epilogue_cmnt(masm(), ";; Epilogue"); |
127 __ mov(sp, fp); | 125 __ mov(sp, fp); |
128 __ ldm(ia_w, sp, fp.bit() | lr.bit()); | 126 __ ldm(ia_w, sp, fp.bit() | lr.bit()); |
129 int32_t sp_delta = (fun->scope()->num_parameters() + 1) * kPointerSize; | 127 int32_t sp_delta = (scope()->num_parameters() + 1) * kPointerSize; |
130 __ add(sp, sp, Operand(sp_delta)); | 128 __ add(sp, sp, Operand(sp_delta)); |
131 __ Jump(lr); | 129 __ Jump(lr); |
132 | 130 |
133 __ bind(&bailout_); | 131 __ bind(&bailout_); |
134 } | 132 } |
135 | 133 |
136 | 134 |
137 #undef __ | 135 #undef __ |
138 | 136 |
139 | 137 |
140 } } // namespace v8::internal | 138 } } // namespace v8::internal |
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