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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 // 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/codegen.h" | 5 #include "src/codegen.h" |
6 #include "src/deoptimizer.h" | 6 #include "src/deoptimizer.h" |
7 #include "src/full-codegen/full-codegen.h" | 7 #include "src/full-codegen/full-codegen.h" |
8 #include "src/register-configuration.h" | 8 #include "src/register-configuration.h" |
9 #include "src/safepoint-table.h" | 9 #include "src/safepoint-table.h" |
10 | 10 |
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227 // r0: deoptimizer object; r1: scratch. | 227 // r0: deoptimizer object; r1: scratch. |
228 __ PrepareCallCFunction(1, r1); | 228 __ PrepareCallCFunction(1, r1); |
229 // Call Deoptimizer::ComputeOutputFrames(). | 229 // Call Deoptimizer::ComputeOutputFrames(). |
230 { | 230 { |
231 AllowExternalCallThatCantCauseGC scope(masm()); | 231 AllowExternalCallThatCantCauseGC scope(masm()); |
232 __ CallCFunction( | 232 __ CallCFunction( |
233 ExternalReference::compute_output_frames_function(isolate()), 1); | 233 ExternalReference::compute_output_frames_function(isolate()), 1); |
234 } | 234 } |
235 __ pop(r0); // Restore deoptimizer object (class Deoptimizer). | 235 __ pop(r0); // Restore deoptimizer object (class Deoptimizer). |
236 | 236 |
| 237 __ ldr(sp, MemOperand(r0, Deoptimizer::caller_frame_top_offset())); |
| 238 |
237 // Replace the current (input) frame with the output frames. | 239 // Replace the current (input) frame with the output frames. |
238 Label outer_push_loop, inner_push_loop, | 240 Label outer_push_loop, inner_push_loop, |
239 outer_loop_header, inner_loop_header; | 241 outer_loop_header, inner_loop_header; |
240 // Outer loop state: r4 = current "FrameDescription** output_", | 242 // Outer loop state: r4 = current "FrameDescription** output_", |
241 // r1 = one past the last FrameDescription**. | 243 // r1 = one past the last FrameDescription**. |
242 __ ldr(r1, MemOperand(r0, Deoptimizer::output_count_offset())); | 244 __ ldr(r1, MemOperand(r0, Deoptimizer::output_count_offset())); |
243 __ ldr(r4, MemOperand(r0, Deoptimizer::output_offset())); // r4 is output_. | 245 __ ldr(r4, MemOperand(r0, Deoptimizer::output_offset())); // r4 is output_. |
244 __ add(r1, r4, Operand(r1, LSL, 2)); | 246 __ add(r1, r4, Operand(r1, LSL, 2)); |
245 __ jmp(&outer_loop_header); | 247 __ jmp(&outer_loop_header); |
246 __ bind(&outer_push_loop); | 248 __ bind(&outer_push_loop); |
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334 void FrameDescription::SetCallerConstantPool(unsigned offset, intptr_t value) { | 336 void FrameDescription::SetCallerConstantPool(unsigned offset, intptr_t value) { |
335 DCHECK(FLAG_enable_embedded_constant_pool); | 337 DCHECK(FLAG_enable_embedded_constant_pool); |
336 SetFrameSlot(offset, value); | 338 SetFrameSlot(offset, value); |
337 } | 339 } |
338 | 340 |
339 | 341 |
340 #undef __ | 342 #undef __ |
341 | 343 |
342 } // namespace internal | 344 } // namespace internal |
343 } // namespace v8 | 345 } // namespace v8 |
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