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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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| 1089 } | 1089 } |
| 1090 } | 1090 } |
| 1091 | 1091 |
| 1092 | 1092 |
| 1093 // On ARM this is just a synonym to make the purpose clear. | 1093 // On ARM this is just a synonym to make the purpose clear. |
| 1094 void MacroAssembler::MovFromFloatParameter(DwVfpRegister dst) { | 1094 void MacroAssembler::MovFromFloatParameter(DwVfpRegister dst) { |
| 1095 MovFromFloatResult(dst); | 1095 MovFromFloatResult(dst); |
| 1096 } | 1096 } |
| 1097 | 1097 |
| 1098 | 1098 |
| 1099 void MacroAssembler::SetCallKind(Register dst, CallKind call_kind) { | |
| 1100 // This macro takes the dst register to make the code more readable | |
| 1101 // at the call sites. However, the dst register has to be r5 to | |
| 1102 // follow the calling convention which requires the call type to be | |
| 1103 // in r5. | |
| 1104 ASSERT(dst.is(r5)); | |
| 1105 if (call_kind == CALL_AS_FUNCTION) { | |
| 1106 mov(dst, Operand(Smi::FromInt(1))); | |
| 1107 } else { | |
| 1108 mov(dst, Operand(Smi::FromInt(0))); | |
| 1109 } | |
| 1110 } | |
| 1111 | |
| 1112 | |
| 1113 void MacroAssembler::InvokePrologue(const ParameterCount& expected, | 1099 void MacroAssembler::InvokePrologue(const ParameterCount& expected, |
| 1114 const ParameterCount& actual, | 1100 const ParameterCount& actual, |
| 1115 Handle<Code> code_constant, | 1101 Handle<Code> code_constant, |
| 1116 Register code_reg, | 1102 Register code_reg, |
| 1117 Label* done, | 1103 Label* done, |
| 1118 bool* definitely_mismatches, | 1104 bool* definitely_mismatches, |
| 1119 InvokeFlag flag, | 1105 InvokeFlag flag, |
| 1120 const CallWrapper& call_wrapper, | 1106 const CallWrapper& call_wrapper) { |
| 1121 CallKind call_kind) { | |
| 1122 bool definitely_matches = false; | 1107 bool definitely_matches = false; |
| 1123 *definitely_mismatches = false; | 1108 *definitely_mismatches = false; |
| 1124 Label regular_invoke; | 1109 Label regular_invoke; |
| 1125 | 1110 |
| 1126 // Check whether the expected and actual arguments count match. If not, | 1111 // Check whether the expected and actual arguments count match. If not, |
| 1127 // setup registers according to contract with ArgumentsAdaptorTrampoline: | 1112 // setup registers according to contract with ArgumentsAdaptorTrampoline: |
| 1128 // r0: actual arguments count | 1113 // r0: actual arguments count |
| 1129 // r1: function (passed through to callee) | 1114 // r1: function (passed through to callee) |
| 1130 // r2: expected arguments count | 1115 // r2: expected arguments count |
| 1131 // r3: callee code entry | 1116 // r3: callee code entry |
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| 1169 if (!definitely_matches) { | 1154 if (!definitely_matches) { |
| 1170 if (!code_constant.is_null()) { | 1155 if (!code_constant.is_null()) { |
| 1171 mov(r3, Operand(code_constant)); | 1156 mov(r3, Operand(code_constant)); |
| 1172 add(r3, r3, Operand(Code::kHeaderSize - kHeapObjectTag)); | 1157 add(r3, r3, Operand(Code::kHeaderSize - kHeapObjectTag)); |
| 1173 } | 1158 } |
| 1174 | 1159 |
| 1175 Handle<Code> adaptor = | 1160 Handle<Code> adaptor = |
| 1176 isolate()->builtins()->ArgumentsAdaptorTrampoline(); | 1161 isolate()->builtins()->ArgumentsAdaptorTrampoline(); |
| 1177 if (flag == CALL_FUNCTION) { | 1162 if (flag == CALL_FUNCTION) { |
| 1178 call_wrapper.BeforeCall(CallSize(adaptor)); | 1163 call_wrapper.BeforeCall(CallSize(adaptor)); |
| 1179 SetCallKind(r5, call_kind); | |
| 1180 Call(adaptor); | 1164 Call(adaptor); |
| 1181 call_wrapper.AfterCall(); | 1165 call_wrapper.AfterCall(); |
| 1182 if (!*definitely_mismatches) { | 1166 if (!*definitely_mismatches) { |
| 1183 b(done); | 1167 b(done); |
| 1184 } | 1168 } |
| 1185 } else { | 1169 } else { |
| 1186 SetCallKind(r5, call_kind); | |
| 1187 Jump(adaptor, RelocInfo::CODE_TARGET); | 1170 Jump(adaptor, RelocInfo::CODE_TARGET); |
| 1188 } | 1171 } |
| 1189 bind(®ular_invoke); | 1172 bind(®ular_invoke); |
| 1190 } | 1173 } |
| 1191 } | 1174 } |
| 1192 | 1175 |
| 1193 | 1176 |
| 1194 void MacroAssembler::InvokeCode(Register code, | 1177 void MacroAssembler::InvokeCode(Register code, |
| 1195 const ParameterCount& expected, | 1178 const ParameterCount& expected, |
| 1196 const ParameterCount& actual, | 1179 const ParameterCount& actual, |
| 1197 InvokeFlag flag, | 1180 InvokeFlag flag, |
| 1198 const CallWrapper& call_wrapper, | 1181 const CallWrapper& call_wrapper) { |
| 1199 CallKind call_kind) { | |
| 1200 // You can't call a function without a valid frame. | 1182 // You can't call a function without a valid frame. |
| 1201 ASSERT(flag == JUMP_FUNCTION || has_frame()); | 1183 ASSERT(flag == JUMP_FUNCTION || has_frame()); |
| 1202 | 1184 |
| 1203 Label done; | 1185 Label done; |
| 1204 bool definitely_mismatches = false; | 1186 bool definitely_mismatches = false; |
| 1205 InvokePrologue(expected, actual, Handle<Code>::null(), code, | 1187 InvokePrologue(expected, actual, Handle<Code>::null(), code, |
| 1206 &done, &definitely_mismatches, flag, | 1188 &done, &definitely_mismatches, flag, |
| 1207 call_wrapper, call_kind); | 1189 call_wrapper); |
| 1208 if (!definitely_mismatches) { | 1190 if (!definitely_mismatches) { |
| 1209 if (flag == CALL_FUNCTION) { | 1191 if (flag == CALL_FUNCTION) { |
| 1210 call_wrapper.BeforeCall(CallSize(code)); | 1192 call_wrapper.BeforeCall(CallSize(code)); |
| 1211 SetCallKind(r5, call_kind); | |
| 1212 Call(code); | 1193 Call(code); |
| 1213 call_wrapper.AfterCall(); | 1194 call_wrapper.AfterCall(); |
| 1214 } else { | 1195 } else { |
| 1215 ASSERT(flag == JUMP_FUNCTION); | 1196 ASSERT(flag == JUMP_FUNCTION); |
| 1216 SetCallKind(r5, call_kind); | |
| 1217 Jump(code); | 1197 Jump(code); |
| 1218 } | 1198 } |
| 1219 | 1199 |
| 1220 // Continue here if InvokePrologue does handle the invocation due to | 1200 // Continue here if InvokePrologue does handle the invocation due to |
| 1221 // mismatched parameter counts. | 1201 // mismatched parameter counts. |
| 1222 bind(&done); | 1202 bind(&done); |
| 1223 } | 1203 } |
| 1224 } | 1204 } |
| 1225 | 1205 |
| 1226 | 1206 |
| 1227 void MacroAssembler::InvokeCode(Handle<Code> code, | 1207 void MacroAssembler::InvokeCode(Handle<Code> code, |
| 1228 const ParameterCount& expected, | 1208 const ParameterCount& expected, |
| 1229 const ParameterCount& actual, | 1209 const ParameterCount& actual, |
| 1230 RelocInfo::Mode rmode, | 1210 RelocInfo::Mode rmode, |
| 1231 InvokeFlag flag, | 1211 InvokeFlag flag) { |
| 1232 CallKind call_kind) { | |
| 1233 // You can't call a function without a valid frame. | 1212 // You can't call a function without a valid frame. |
| 1234 ASSERT(flag == JUMP_FUNCTION || has_frame()); | 1213 ASSERT(flag == JUMP_FUNCTION || has_frame()); |
| 1235 | 1214 |
| 1236 Label done; | 1215 Label done; |
| 1237 bool definitely_mismatches = false; | 1216 bool definitely_mismatches = false; |
| 1238 InvokePrologue(expected, actual, code, no_reg, | 1217 InvokePrologue(expected, actual, code, no_reg, |
| 1239 &done, &definitely_mismatches, flag, | 1218 &done, &definitely_mismatches, flag, |
| 1240 NullCallWrapper(), call_kind); | 1219 NullCallWrapper()); |
| 1241 if (!definitely_mismatches) { | 1220 if (!definitely_mismatches) { |
| 1242 if (flag == CALL_FUNCTION) { | 1221 if (flag == CALL_FUNCTION) { |
| 1243 SetCallKind(r5, call_kind); | |
| 1244 Call(code, rmode); | 1222 Call(code, rmode); |
| 1245 } else { | 1223 } else { |
| 1246 SetCallKind(r5, call_kind); | |
| 1247 Jump(code, rmode); | 1224 Jump(code, rmode); |
| 1248 } | 1225 } |
| 1249 | 1226 |
| 1250 // Continue here if InvokePrologue does handle the invocation due to | 1227 // Continue here if InvokePrologue does handle the invocation due to |
| 1251 // mismatched parameter counts. | 1228 // mismatched parameter counts. |
| 1252 bind(&done); | 1229 bind(&done); |
| 1253 } | 1230 } |
| 1254 } | 1231 } |
| 1255 | 1232 |
| 1256 | 1233 |
| 1257 void MacroAssembler::InvokeFunction(Register fun, | 1234 void MacroAssembler::InvokeFunction(Register fun, |
| 1258 const ParameterCount& actual, | 1235 const ParameterCount& actual, |
| 1259 InvokeFlag flag, | 1236 InvokeFlag flag, |
| 1260 const CallWrapper& call_wrapper, | 1237 const CallWrapper& call_wrapper) { |
| 1261 CallKind call_kind) { | |
| 1262 // You can't call a function without a valid frame. | 1238 // You can't call a function without a valid frame. |
| 1263 ASSERT(flag == JUMP_FUNCTION || has_frame()); | 1239 ASSERT(flag == JUMP_FUNCTION || has_frame()); |
| 1264 | 1240 |
| 1265 // Contract with called JS functions requires that function is passed in r1. | 1241 // Contract with called JS functions requires that function is passed in r1. |
| 1266 ASSERT(fun.is(r1)); | 1242 ASSERT(fun.is(r1)); |
| 1267 | 1243 |
| 1268 Register expected_reg = r2; | 1244 Register expected_reg = r2; |
| 1269 Register code_reg = r3; | 1245 Register code_reg = r3; |
| 1270 | 1246 |
| 1271 ldr(code_reg, FieldMemOperand(r1, JSFunction::kSharedFunctionInfoOffset)); | 1247 ldr(code_reg, FieldMemOperand(r1, JSFunction::kSharedFunctionInfoOffset)); |
| 1272 ldr(cp, FieldMemOperand(r1, JSFunction::kContextOffset)); | 1248 ldr(cp, FieldMemOperand(r1, JSFunction::kContextOffset)); |
| 1273 ldr(expected_reg, | 1249 ldr(expected_reg, |
| 1274 FieldMemOperand(code_reg, | 1250 FieldMemOperand(code_reg, |
| 1275 SharedFunctionInfo::kFormalParameterCountOffset)); | 1251 SharedFunctionInfo::kFormalParameterCountOffset)); |
| 1276 SmiUntag(expected_reg); | 1252 SmiUntag(expected_reg); |
| 1277 ldr(code_reg, | 1253 ldr(code_reg, |
| 1278 FieldMemOperand(r1, JSFunction::kCodeEntryOffset)); | 1254 FieldMemOperand(r1, JSFunction::kCodeEntryOffset)); |
| 1279 | 1255 |
| 1280 ParameterCount expected(expected_reg); | 1256 ParameterCount expected(expected_reg); |
| 1281 InvokeCode(code_reg, expected, actual, flag, call_wrapper, call_kind); | 1257 InvokeCode(code_reg, expected, actual, flag, call_wrapper); |
| 1282 } | 1258 } |
| 1283 | 1259 |
| 1284 | 1260 |
| 1285 void MacroAssembler::InvokeFunction(Register function, | 1261 void MacroAssembler::InvokeFunction(Register function, |
| 1286 const ParameterCount& expected, | 1262 const ParameterCount& expected, |
| 1287 const ParameterCount& actual, | 1263 const ParameterCount& actual, |
| 1288 InvokeFlag flag, | 1264 InvokeFlag flag, |
| 1289 const CallWrapper& call_wrapper, | 1265 const CallWrapper& call_wrapper) { |
| 1290 CallKind call_kind) { | |
| 1291 // You can't call a function without a valid frame. | 1266 // You can't call a function without a valid frame. |
| 1292 ASSERT(flag == JUMP_FUNCTION || has_frame()); | 1267 ASSERT(flag == JUMP_FUNCTION || has_frame()); |
| 1293 | 1268 |
| 1294 // Contract with called JS functions requires that function is passed in r1. | 1269 // Contract with called JS functions requires that function is passed in r1. |
| 1295 ASSERT(function.is(r1)); | 1270 ASSERT(function.is(r1)); |
| 1296 | 1271 |
| 1297 // Get the function and setup the context. | 1272 // Get the function and setup the context. |
| 1298 ldr(cp, FieldMemOperand(r1, JSFunction::kContextOffset)); | 1273 ldr(cp, FieldMemOperand(r1, JSFunction::kContextOffset)); |
| 1299 | 1274 |
| 1300 // We call indirectly through the code field in the function to | 1275 // We call indirectly through the code field in the function to |
| 1301 // allow recompilation to take effect without changing any of the | 1276 // allow recompilation to take effect without changing any of the |
| 1302 // call sites. | 1277 // call sites. |
| 1303 ldr(r3, FieldMemOperand(r1, JSFunction::kCodeEntryOffset)); | 1278 ldr(r3, FieldMemOperand(r1, JSFunction::kCodeEntryOffset)); |
| 1304 InvokeCode(r3, expected, actual, flag, call_wrapper, call_kind); | 1279 InvokeCode(r3, expected, actual, flag, call_wrapper); |
| 1305 } | 1280 } |
| 1306 | 1281 |
| 1307 | 1282 |
| 1308 void MacroAssembler::InvokeFunction(Handle<JSFunction> function, | 1283 void MacroAssembler::InvokeFunction(Handle<JSFunction> function, |
| 1309 const ParameterCount& expected, | 1284 const ParameterCount& expected, |
| 1310 const ParameterCount& actual, | 1285 const ParameterCount& actual, |
| 1311 InvokeFlag flag, | 1286 InvokeFlag flag, |
| 1312 const CallWrapper& call_wrapper, | 1287 const CallWrapper& call_wrapper) { |
| 1313 CallKind call_kind) { | |
| 1314 Move(r1, function); | 1288 Move(r1, function); |
| 1315 InvokeFunction(r1, expected, actual, flag, call_wrapper, call_kind); | 1289 InvokeFunction(r1, expected, actual, flag, call_wrapper); |
| 1316 } | 1290 } |
| 1317 | 1291 |
| 1318 | 1292 |
| 1319 void MacroAssembler::IsObjectJSObjectType(Register heap_object, | 1293 void MacroAssembler::IsObjectJSObjectType(Register heap_object, |
| 1320 Register map, | 1294 Register map, |
| 1321 Register scratch, | 1295 Register scratch, |
| 1322 Label* fail) { | 1296 Label* fail) { |
| 1323 ldr(map, FieldMemOperand(heap_object, HeapObject::kMapOffset)); | 1297 ldr(map, FieldMemOperand(heap_object, HeapObject::kMapOffset)); |
| 1324 IsInstanceJSObjectType(map, scratch, fail); | 1298 IsInstanceJSObjectType(map, scratch, fail); |
| 1325 } | 1299 } |
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| 2752 | 2726 |
| 2753 void MacroAssembler::InvokeBuiltin(Builtins::JavaScript id, | 2727 void MacroAssembler::InvokeBuiltin(Builtins::JavaScript id, |
| 2754 InvokeFlag flag, | 2728 InvokeFlag flag, |
| 2755 const CallWrapper& call_wrapper) { | 2729 const CallWrapper& call_wrapper) { |
| 2756 // You can't call a builtin without a valid frame. | 2730 // You can't call a builtin without a valid frame. |
| 2757 ASSERT(flag == JUMP_FUNCTION || has_frame()); | 2731 ASSERT(flag == JUMP_FUNCTION || has_frame()); |
| 2758 | 2732 |
| 2759 GetBuiltinEntry(r2, id); | 2733 GetBuiltinEntry(r2, id); |
| 2760 if (flag == CALL_FUNCTION) { | 2734 if (flag == CALL_FUNCTION) { |
| 2761 call_wrapper.BeforeCall(CallSize(r2)); | 2735 call_wrapper.BeforeCall(CallSize(r2)); |
| 2762 SetCallKind(r5, CALL_AS_METHOD); | |
| 2763 Call(r2); | 2736 Call(r2); |
| 2764 call_wrapper.AfterCall(); | 2737 call_wrapper.AfterCall(); |
| 2765 } else { | 2738 } else { |
| 2766 ASSERT(flag == JUMP_FUNCTION); | 2739 ASSERT(flag == JUMP_FUNCTION); |
| 2767 SetCallKind(r5, CALL_AS_METHOD); | |
| 2768 Jump(r2); | 2740 Jump(r2); |
| 2769 } | 2741 } |
| 2770 } | 2742 } |
| 2771 | 2743 |
| 2772 | 2744 |
| 2773 void MacroAssembler::GetBuiltinFunction(Register target, | 2745 void MacroAssembler::GetBuiltinFunction(Register target, |
| 2774 Builtins::JavaScript id) { | 2746 Builtins::JavaScript id) { |
| 2775 // Load the builtins object into target register. | 2747 // Load the builtins object into target register. |
| 2776 ldr(target, | 2748 ldr(target, |
| 2777 MemOperand(cp, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX))); | 2749 MemOperand(cp, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX))); |
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| 4127 void CodePatcher::EmitCondition(Condition cond) { | 4099 void CodePatcher::EmitCondition(Condition cond) { |
| 4128 Instr instr = Assembler::instr_at(masm_.pc_); | 4100 Instr instr = Assembler::instr_at(masm_.pc_); |
| 4129 instr = (instr & ~kCondMask) | cond; | 4101 instr = (instr & ~kCondMask) | cond; |
| 4130 masm_.emit(instr); | 4102 masm_.emit(instr); |
| 4131 } | 4103 } |
| 4132 | 4104 |
| 4133 | 4105 |
| 4134 } } // namespace v8::internal | 4106 } } // namespace v8::internal |
| 4135 | 4107 |
| 4136 #endif // V8_TARGET_ARCH_ARM | 4108 #endif // V8_TARGET_ARCH_ARM |
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