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1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "src/compiler/code-generator.h" | 5 #include "src/compiler/code-generator.h" |
6 | 6 |
7 #include "src/compiler/code-generator-impl.h" | 7 #include "src/compiler/code-generator-impl.h" |
8 #include "src/compiler/gap-resolver.h" | 8 #include "src/compiler/gap-resolver.h" |
9 #include "src/compiler/node-matchers.h" | 9 #include "src/compiler/node-matchers.h" |
10 #include "src/compiler/node-properties-inl.h" | 10 #include "src/compiler/node-properties-inl.h" |
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104 static bool HasImmediateInput(Instruction* instr, int index) { | 104 static bool HasImmediateInput(Instruction* instr, int index) { |
105 return instr->InputAt(index)->IsImmediate(); | 105 return instr->InputAt(index)->IsImmediate(); |
106 } | 106 } |
107 | 107 |
108 | 108 |
109 // Assembles an instruction after register allocation, producing machine code. | 109 // Assembles an instruction after register allocation, producing machine code. |
110 void CodeGenerator::AssembleArchInstruction(Instruction* instr) { | 110 void CodeGenerator::AssembleArchInstruction(Instruction* instr) { |
111 IA32OperandConverter i(this, instr); | 111 IA32OperandConverter i(this, instr); |
112 | 112 |
113 switch (ArchOpcodeField::decode(instr->opcode())) { | 113 switch (ArchOpcodeField::decode(instr->opcode())) { |
114 case kArchCallAddress: | |
115 if (HasImmediateInput(instr, 0)) { | |
116 // TODO(dcarney): wire up EXTERNAL_REFERENCE instead of RUNTIME_ENTRY. | |
117 __ call(reinterpret_cast<byte*>(i.InputInt32(0)), | |
118 RelocInfo::RUNTIME_ENTRY); | |
119 } else { | |
120 __ call(i.InputRegister(0)); | |
121 } | |
122 break; | |
123 case kArchCallCodeObject: { | 114 case kArchCallCodeObject: { |
124 if (HasImmediateInput(instr, 0)) { | 115 if (HasImmediateInput(instr, 0)) { |
125 Handle<Code> code = Handle<Code>::cast(i.InputHeapObject(0)); | 116 Handle<Code> code = Handle<Code>::cast(i.InputHeapObject(0)); |
126 __ call(code, RelocInfo::CODE_TARGET); | 117 __ call(code, RelocInfo::CODE_TARGET); |
127 } else { | 118 } else { |
128 Register reg = i.InputRegister(0); | 119 Register reg = i.InputRegister(0); |
129 __ call(Operand(reg, Code::kHeaderSize - kHeapObjectTag)); | 120 __ call(Operand(reg, Code::kHeaderSize - kHeapObjectTag)); |
130 } | 121 } |
131 AddSafepointAndDeopt(instr); | 122 AddSafepointAndDeopt(instr); |
132 break; | 123 break; |
133 } | 124 } |
134 case kArchCallJSFunction: { | 125 case kArchCallJSFunction: { |
135 Register func = i.InputRegister(0); | 126 Register func = i.InputRegister(0); |
136 if (FLAG_debug_code) { | 127 if (FLAG_debug_code) { |
137 // Check the function's context matches the context argument. | 128 // Check the function's context matches the context argument. |
138 __ cmp(esi, FieldOperand(func, JSFunction::kContextOffset)); | 129 __ cmp(esi, FieldOperand(func, JSFunction::kContextOffset)); |
139 __ Assert(equal, kWrongFunctionContext); | 130 __ Assert(equal, kWrongFunctionContext); |
140 } | 131 } |
141 __ call(FieldOperand(func, JSFunction::kCodeEntryOffset)); | 132 __ call(FieldOperand(func, JSFunction::kCodeEntryOffset)); |
142 AddSafepointAndDeopt(instr); | 133 AddSafepointAndDeopt(instr); |
143 break; | 134 break; |
144 } | 135 } |
145 case kArchDrop: { | |
146 int words = MiscField::decode(instr->opcode()); | |
147 __ add(esp, Immediate(kPointerSize * words)); | |
148 break; | |
149 } | |
150 case kArchJmp: | 136 case kArchJmp: |
151 __ jmp(code()->GetLabel(i.InputBlock(0))); | 137 __ jmp(code()->GetLabel(i.InputBlock(0))); |
152 break; | 138 break; |
153 case kArchNop: | 139 case kArchNop: |
154 // don't emit code for nops. | 140 // don't emit code for nops. |
155 break; | 141 break; |
156 case kArchRet: | 142 case kArchRet: |
157 AssembleReturn(); | 143 AssembleReturn(); |
158 break; | 144 break; |
159 case kArchTruncateDoubleToI: | 145 case kArchTruncateDoubleToI: |
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944 } | 930 } |
945 | 931 |
946 | 932 |
947 void CodeGenerator::AddNopForSmiCodeInlining() { __ nop(); } | 933 void CodeGenerator::AddNopForSmiCodeInlining() { __ nop(); } |
948 | 934 |
949 #undef __ | 935 #undef __ |
950 | 936 |
951 } // namespace compiler | 937 } // namespace compiler |
952 } // namespace internal | 938 } // namespace internal |
953 } // namespace v8 | 939 } // namespace v8 |
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