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1 // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2014, 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_ARM64. | 5 #include "vm/globals.h" // Needed here to get TARGET_ARCH_ARM64. |
6 #if defined(TARGET_ARCH_ARM64) | 6 #if defined(TARGET_ARCH_ARM64) |
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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215 // R4: Arguments descriptor. | 215 // R4: Arguments descriptor. |
216 // R0: Function. | 216 // R0: Function. |
217 ASSERT(locs()->in(0).reg() == R0); | 217 ASSERT(locs()->in(0).reg() == R0); |
218 __ LoadFieldFromOffset(R2, R0, Function::instructions_offset(), PP); | 218 __ LoadFieldFromOffset(R2, R0, Function::instructions_offset(), PP); |
219 | 219 |
220 // R2: instructions. | 220 // R2: instructions. |
221 // R5: Smi 0 (no IC data; the lazy-compile stub expects a GC-safe value). | 221 // R5: Smi 0 (no IC data; the lazy-compile stub expects a GC-safe value). |
222 __ LoadImmediate(R5, 0, PP); | 222 __ LoadImmediate(R5, 0, PP); |
223 __ AddImmediate(R2, R2, Instructions::HeaderSize() - kHeapObjectTag, PP); | 223 __ AddImmediate(R2, R2, Instructions::HeaderSize() - kHeapObjectTag, PP); |
224 __ blr(R2); | 224 __ blr(R2); |
225 compiler->AddCurrentDescriptor(RawPcDescriptors::kClosureCall, | |
226 deopt_id(), | |
227 token_pos()); | |
228 compiler->RecordSafepoint(locs()); | 225 compiler->RecordSafepoint(locs()); |
229 // Marks either the continuation point in unoptimized code or the | 226 // Marks either the continuation point in unoptimized code or the |
230 // deoptimization point in optimized code, after call. | 227 // deoptimization point in optimized code, after call. |
231 const intptr_t deopt_id_after = Isolate::ToDeoptAfter(deopt_id()); | 228 const intptr_t deopt_id_after = Isolate::ToDeoptAfter(deopt_id()); |
232 if (compiler->is_optimizing()) { | 229 if (compiler->is_optimizing()) { |
233 compiler->AddDeoptIndexAtCall(deopt_id_after, token_pos()); | 230 compiler->AddDeoptIndexAtCall(deopt_id_after, token_pos()); |
234 } else { | |
235 // Add deoptimization continuation point after the call and before the | |
236 // arguments are removed. | |
237 compiler->AddCurrentDescriptor(RawPcDescriptors::kDeopt, | |
238 deopt_id_after, | |
239 token_pos()); | |
240 } | 231 } |
| 232 // Add deoptimization continuation point after the call and before the |
| 233 // arguments are removed. |
| 234 // In optimized code this descriptor is needed for exception handling. |
| 235 compiler->AddCurrentDescriptor(RawPcDescriptors::kDeopt, |
| 236 deopt_id_after, |
| 237 token_pos()); |
241 __ Drop(argument_count); | 238 __ Drop(argument_count); |
242 } | 239 } |
243 | 240 |
244 | 241 |
245 LocationSummary* LoadLocalInstr::MakeLocationSummary(Zone* zone, | 242 LocationSummary* LoadLocalInstr::MakeLocationSummary(Zone* zone, |
246 bool opt) const { | 243 bool opt) const { |
247 return LocationSummary::Make(zone, | 244 return LocationSummary::Make(zone, |
248 0, | 245 0, |
249 Location::RequiresRegister(), | 246 Location::RequiresRegister(), |
250 LocationSummary::kNoCall); | 247 LocationSummary::kNoCall); |
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5657 1, | 5654 1, |
5658 locs()); | 5655 locs()); |
5659 __ Drop(1); | 5656 __ Drop(1); |
5660 __ Pop(result); | 5657 __ Pop(result); |
5661 } | 5658 } |
5662 | 5659 |
5663 | 5660 |
5664 } // namespace dart | 5661 } // namespace dart |
5665 | 5662 |
5666 #endif // defined TARGET_ARCH_ARM64 | 5663 #endif // defined TARGET_ARCH_ARM64 |
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