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1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #include "vm/globals.h" // Needed here to get TARGET_ARCH_ARM. | 5 #include "vm/globals.h" // Needed here to get TARGET_ARCH_ARM. |
6 #if defined(TARGET_ARCH_ARM) | 6 #if defined(TARGET_ARCH_ARM) |
7 | 7 |
8 #include "vm/intermediate_language.h" | 8 #include "vm/intermediate_language.h" |
9 | 9 |
10 #include "vm/dart_entry.h" | 10 #include "vm/dart_entry.h" |
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2170 locs->set_in(0, Location::RegisterLocation(R0)); | 2170 locs->set_in(0, Location::RegisterLocation(R0)); |
2171 locs->set_out(Location::RegisterLocation(R0)); | 2171 locs->set_out(Location::RegisterLocation(R0)); |
2172 return locs; | 2172 return locs; |
2173 } | 2173 } |
2174 | 2174 |
2175 | 2175 |
2176 void InstantiateTypeArgumentsInstr::EmitNativeCode( | 2176 void InstantiateTypeArgumentsInstr::EmitNativeCode( |
2177 FlowGraphCompiler* compiler) { | 2177 FlowGraphCompiler* compiler) { |
2178 Register instantiator_reg = locs()->in(0).reg(); | 2178 Register instantiator_reg = locs()->in(0).reg(); |
2179 Register result_reg = locs()->out().reg(); | 2179 Register result_reg = locs()->out().reg(); |
| 2180 ASSERT(instantiator_reg == R0); |
| 2181 ASSERT(instantiator_reg == result_reg); |
2180 | 2182 |
2181 // 'instantiator_reg' is the instantiator TypeArguments object (or null). | 2183 // 'instantiator_reg' is the instantiator TypeArguments object (or null). |
2182 ASSERT(!type_arguments().IsUninstantiatedIdentity() && | 2184 ASSERT(!type_arguments().IsUninstantiatedIdentity() && |
2183 !type_arguments().CanShareInstantiatorTypeArguments( | 2185 !type_arguments().CanShareInstantiatorTypeArguments( |
2184 instantiator_class())); | 2186 instantiator_class())); |
2185 // If the instantiator is null and if the type argument vector | 2187 // If the instantiator is null and if the type argument vector |
2186 // instantiated from null becomes a vector of dynamic, then use null as | 2188 // instantiated from null becomes a vector of dynamic, then use null as |
2187 // the type arguments. | 2189 // the type arguments. |
2188 Label type_arguments_instantiated; | 2190 Label type_arguments_instantiated; |
2189 const intptr_t len = type_arguments().Length(); | 2191 const intptr_t len = type_arguments().Length(); |
2190 if (type_arguments().IsRawInstantiatedRaw(len)) { | 2192 if (type_arguments().IsRawInstantiatedRaw(len)) { |
2191 __ LoadImmediate(IP, reinterpret_cast<intptr_t>(Object::null())); | 2193 __ LoadImmediate(IP, reinterpret_cast<intptr_t>(Object::null())); |
2192 __ cmp(instantiator_reg, ShifterOperand(IP)); | 2194 __ cmp(instantiator_reg, ShifterOperand(IP)); |
2193 __ b(&type_arguments_instantiated, EQ); | 2195 __ b(&type_arguments_instantiated, EQ); |
2194 } | 2196 } |
| 2197 |
| 2198 __ LoadObject(R2, type_arguments()); |
| 2199 __ ldr(R2, FieldAddress(R2, TypeArguments::instantiations_offset())); |
| 2200 __ ldr(R3, FieldAddress(R2, Array::length_offset())); |
| 2201 __ AddImmediate(R2, Array::data_offset() - kHeapObjectTag); |
| 2202 __ add(R3, R2, ShifterOperand(R3, LSL, 1)); // R3 is Smi. |
| 2203 Label loop, found, slow_case; |
| 2204 __ Bind(&loop); |
| 2205 __ cmp(R2, ShifterOperand(R3)); |
| 2206 __ b(&slow_case, CS); // Unsigned higher or equal. |
| 2207 __ ldr(R1, Address(R2, 0 * kWordSize)); // Cached instantiator. |
| 2208 __ cmp(R1, ShifterOperand(R0)); |
| 2209 __ b(&found, EQ); |
| 2210 __ CompareImmediate(R1, Smi::RawValue(StubCode::kNoInstantiator)); |
| 2211 __ b(&slow_case, EQ); |
| 2212 __ AddImmediate(R2, 2 * kWordSize); |
| 2213 __ b(&loop); |
| 2214 __ Bind(&found); |
| 2215 __ ldr(R0, Address(R2, 1 * kWordSize)); // Cached instantiated args. |
| 2216 __ b(&type_arguments_instantiated); |
| 2217 |
| 2218 __ Bind(&slow_case); |
2195 // Instantiate non-null type arguments. | 2219 // Instantiate non-null type arguments. |
2196 // A runtime call to instantiate the type arguments is required. | 2220 // A runtime call to instantiate the type arguments is required. |
2197 __ PushObject(Object::ZoneHandle()); // Make room for the result. | 2221 __ PushObject(Object::ZoneHandle()); // Make room for the result. |
2198 __ PushObject(type_arguments()); | 2222 __ PushObject(type_arguments()); |
2199 __ Push(instantiator_reg); // Push instantiator type arguments. | 2223 __ Push(instantiator_reg); // Push instantiator type arguments. |
2200 compiler->GenerateRuntimeCall(token_pos(), | 2224 compiler->GenerateRuntimeCall(token_pos(), |
2201 deopt_id(), | 2225 deopt_id(), |
2202 kInstantiateTypeArgumentsRuntimeEntry, | 2226 kInstantiateTypeArgumentsRuntimeEntry, |
2203 2, | 2227 2, |
2204 locs()); | 2228 locs()); |
2205 __ Drop(2); // Drop instantiator and uninstantiated type arguments. | 2229 __ Drop(2); // Drop instantiator and uninstantiated type arguments. |
2206 __ Pop(result_reg); // Pop instantiated type arguments. | 2230 __ Pop(result_reg); // Pop instantiated type arguments. |
2207 __ Bind(&type_arguments_instantiated); | 2231 __ Bind(&type_arguments_instantiated); |
2208 ASSERT(instantiator_reg == result_reg); | |
2209 } | |
2210 | |
2211 | |
2212 LocationSummary* | |
2213 ExtractConstructorTypeArgumentsInstr::MakeLocationSummary(bool opt) const { | |
2214 const intptr_t kNumInputs = 1; | |
2215 const intptr_t kNumTemps = 0; | |
2216 LocationSummary* locs = | |
2217 new LocationSummary(kNumInputs, kNumTemps, LocationSummary::kNoCall); | |
2218 locs->set_in(0, Location::RequiresRegister()); | |
2219 locs->set_out(Location::SameAsFirstInput()); | |
2220 return locs; | |
2221 } | |
2222 | |
2223 | |
2224 void ExtractConstructorTypeArgumentsInstr::EmitNativeCode( | |
2225 FlowGraphCompiler* compiler) { | |
2226 Register instantiator_reg = locs()->in(0).reg(); | |
2227 Register result_reg = locs()->out().reg(); | |
2228 ASSERT(instantiator_reg == result_reg); | |
2229 | |
2230 // instantiator_reg is the instantiator type argument vector, | |
2231 // i.e. a TypeArguments object (or null). | |
2232 ASSERT(!type_arguments().IsUninstantiatedIdentity() && | |
2233 !type_arguments().CanShareInstantiatorTypeArguments( | |
2234 instantiator_class())); | |
2235 // If the instantiator is null and if the type argument vector | |
2236 // instantiated from null becomes a vector of dynamic, then use null as | |
2237 // the type arguments. | |
2238 Label type_arguments_instantiated; | |
2239 ASSERT(type_arguments().IsRawInstantiatedRaw(type_arguments().Length())); | |
2240 __ CompareImmediate(instantiator_reg, | |
2241 reinterpret_cast<intptr_t>(Object::null())); | |
2242 __ b(&type_arguments_instantiated, EQ); | |
2243 // Instantiate non-null type arguments. | |
2244 // In the non-factory case, we rely on the allocation stub to | |
2245 // instantiate the type arguments. | |
2246 __ LoadObject(result_reg, type_arguments()); | |
2247 // result_reg: uninstantiated type arguments. | |
2248 __ Bind(&type_arguments_instantiated); | |
2249 | |
2250 // result_reg: uninstantiated or instantiated type arguments. | |
2251 } | |
2252 | |
2253 | |
2254 LocationSummary* | |
2255 ExtractConstructorInstantiatorInstr::MakeLocationSummary(bool opt) const { | |
2256 const intptr_t kNumInputs = 1; | |
2257 const intptr_t kNumTemps = 0; | |
2258 LocationSummary* locs = | |
2259 new LocationSummary(kNumInputs, kNumTemps, LocationSummary::kNoCall); | |
2260 locs->set_in(0, Location::RequiresRegister()); | |
2261 locs->set_out(Location::SameAsFirstInput()); | |
2262 return locs; | |
2263 } | |
2264 | |
2265 | |
2266 void ExtractConstructorInstantiatorInstr::EmitNativeCode( | |
2267 FlowGraphCompiler* compiler) { | |
2268 Register instantiator_reg = locs()->in(0).reg(); | |
2269 ASSERT(locs()->out().reg() == instantiator_reg); | |
2270 | |
2271 // instantiator_reg is the instantiator TypeArguments object (or null). | |
2272 ASSERT(!type_arguments().IsUninstantiatedIdentity() && | |
2273 !type_arguments().CanShareInstantiatorTypeArguments( | |
2274 instantiator_class())); | |
2275 | |
2276 // If the instantiator is null and if the type argument vector | |
2277 // instantiated from null becomes a vector of dynamic, then use null as | |
2278 // the type arguments and do not pass the instantiator. | |
2279 ASSERT(type_arguments().IsRawInstantiatedRaw(type_arguments().Length())); | |
2280 Label instantiator_not_null; | |
2281 __ CompareImmediate(instantiator_reg, | |
2282 reinterpret_cast<intptr_t>(Object::null())); | |
2283 __ b(&instantiator_not_null, NE); | |
2284 // Null was used in VisitExtractConstructorTypeArguments as the | |
2285 // instantiated type arguments, no proper instantiator needed. | |
2286 __ LoadImmediate(instantiator_reg, | |
2287 Smi::RawValue(StubCode::kNoInstantiator)); | |
2288 __ Bind(&instantiator_not_null); | |
2289 // instantiator_reg: instantiator or kNoInstantiator. | |
2290 } | 2232 } |
2291 | 2233 |
2292 | 2234 |
2293 LocationSummary* AllocateContextInstr::MakeLocationSummary(bool opt) const { | 2235 LocationSummary* AllocateContextInstr::MakeLocationSummary(bool opt) const { |
2294 const intptr_t kNumInputs = 0; | 2236 const intptr_t kNumInputs = 0; |
2295 const intptr_t kNumTemps = 1; | 2237 const intptr_t kNumTemps = 1; |
2296 LocationSummary* locs = | 2238 LocationSummary* locs = |
2297 new LocationSummary(kNumInputs, kNumTemps, LocationSummary::kCall); | 2239 new LocationSummary(kNumInputs, kNumTemps, LocationSummary::kCall); |
2298 locs->set_temp(0, Location::RegisterLocation(R1)); | 2240 locs->set_temp(0, Location::RegisterLocation(R1)); |
2299 locs->set_out(Location::RegisterLocation(R0)); | 2241 locs->set_out(Location::RegisterLocation(R0)); |
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4956 compiler->GenerateCall(token_pos(), | 4898 compiler->GenerateCall(token_pos(), |
4957 &label, | 4899 &label, |
4958 PcDescriptors::kOther, | 4900 PcDescriptors::kOther, |
4959 locs()); | 4901 locs()); |
4960 __ Drop(2); // Discard type arguments and receiver. | 4902 __ Drop(2); // Discard type arguments and receiver. |
4961 } | 4903 } |
4962 | 4904 |
4963 } // namespace dart | 4905 } // namespace dart |
4964 | 4906 |
4965 #endif // defined TARGET_ARCH_ARM | 4907 #endif // defined TARGET_ARCH_ARM |
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