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1 // Copyright 2010 the V8 project authors. All rights reserved. | 1 // Copyright 2010 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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189 // There are no translation commands for the caller's pc and fp, the | 189 // There are no translation commands for the caller's pc and fp, the |
190 // context, and the function. Synthesize their values and set them up | 190 // context, and the function. Synthesize their values and set them up |
191 // explicitly. | 191 // explicitly. |
192 // | 192 // |
193 // The caller's pc for the bottommost output frame is the same as in the | 193 // The caller's pc for the bottommost output frame is the same as in the |
194 // input frame. For all subsequent output frames, it can be read from the | 194 // input frame. For all subsequent output frames, it can be read from the |
195 // previous one. This frame's pc can be computed from the non-optimized | 195 // previous one. This frame's pc can be computed from the non-optimized |
196 // function code and AST id of the bailout. | 196 // function code and AST id of the bailout. |
197 output_offset -= kPointerSize; | 197 output_offset -= kPointerSize; |
198 input_offset -= kPointerSize; | 198 input_offset -= kPointerSize; |
199 uint32_t value; | 199 intptr_t value; |
200 if (is_bottommost) { | 200 if (is_bottommost) { |
201 value = input_->GetFrameSlot(input_offset); | 201 value = input_->GetFrameSlot(input_offset); |
202 } else { | 202 } else { |
203 value = output_[frame_index - 1]->GetPc(); | 203 value = output_[frame_index - 1]->GetPc(); |
204 } | 204 } |
205 output_frame->SetFrameSlot(output_offset, value); | 205 output_frame->SetFrameSlot(output_offset, value); |
206 if (FLAG_trace_deopt) { | 206 if (FLAG_trace_deopt) { |
207 PrintF(" 0x%08x: [top + %d] <- 0x%08x ; caller's pc\n", | 207 PrintF(" 0x%08x: [top + %d] <- 0x%08x ; caller's pc\n", |
208 top_address + output_offset, output_offset, value); | 208 top_address + output_offset, output_offset, value); |
209 } | 209 } |
210 | 210 |
211 // The caller's frame pointer for the bottommost output frame is the same | 211 // The caller's frame pointer for the bottommost output frame is the same |
212 // as in the input frame. For all subsequent output frames, it can be | 212 // as in the input frame. For all subsequent output frames, it can be |
213 // read from the previous one. Also compute and set this frame's frame | 213 // read from the previous one. Also compute and set this frame's frame |
214 // pointer. | 214 // pointer. |
215 output_offset -= kPointerSize; | 215 output_offset -= kPointerSize; |
216 input_offset -= kPointerSize; | 216 input_offset -= kPointerSize; |
217 if (is_bottommost) { | 217 if (is_bottommost) { |
218 value = input_->GetFrameSlot(input_offset); | 218 value = input_->GetFrameSlot(input_offset); |
219 } else { | 219 } else { |
220 value = output_[frame_index - 1]->GetFp(); | 220 value = output_[frame_index - 1]->GetFp(); |
221 } | 221 } |
222 output_frame->SetFrameSlot(output_offset, value); | 222 output_frame->SetFrameSlot(output_offset, value); |
223 unsigned fp_value = top_address + output_offset; | 223 intptr_t fp_value = top_address + output_offset; |
224 ASSERT(!is_bottommost || input_->GetRegister(fp.code()) == fp_value); | 224 ASSERT(!is_bottommost || input_->GetRegister(fp.code()) == fp_value); |
225 output_frame->SetFp(fp_value); | 225 output_frame->SetFp(fp_value); |
226 if (is_topmost) { | 226 if (is_topmost) { |
227 output_frame->SetRegister(fp.code(), fp_value); | 227 output_frame->SetRegister(fp.code(), fp_value); |
228 } | 228 } |
229 if (FLAG_trace_deopt) { | 229 if (FLAG_trace_deopt) { |
230 PrintF(" 0x%08x: [top + %d] <- 0x%08x ; caller's fp\n", | 230 PrintF(" 0x%08x: [top + %d] <- 0x%08x ; caller's fp\n", |
231 fp_value, output_offset, value); | 231 fp_value, output_offset, value); |
232 } | 232 } |
233 | 233 |
234 // The context can be gotten from the function so long as we don't | 234 // The context can be gotten from the function so long as we don't |
235 // optimize functions that need local contexts. | 235 // optimize functions that need local contexts. |
236 output_offset -= kPointerSize; | 236 output_offset -= kPointerSize; |
237 input_offset -= kPointerSize; | 237 input_offset -= kPointerSize; |
238 value = reinterpret_cast<uint32_t>(function->context()); | 238 value = reinterpret_cast<intptr_t>(function->context()); |
239 // The context for the bottommost output frame should also agree with the | 239 // The context for the bottommost output frame should also agree with the |
240 // input frame. | 240 // input frame. |
241 ASSERT(!is_bottommost || input_->GetFrameSlot(input_offset) == value); | 241 ASSERT(!is_bottommost || input_->GetFrameSlot(input_offset) == value); |
242 output_frame->SetFrameSlot(output_offset, value); | 242 output_frame->SetFrameSlot(output_offset, value); |
243 if (is_topmost) { | 243 if (is_topmost) { |
244 output_frame->SetRegister(cp.code(), value); | 244 output_frame->SetRegister(cp.code(), value); |
245 } | 245 } |
246 if (FLAG_trace_deopt) { | 246 if (FLAG_trace_deopt) { |
247 PrintF(" 0x%08x: [top + %d] <- 0x%08x ; context\n", | 247 PrintF(" 0x%08x: [top + %d] <- 0x%08x ; context\n", |
248 top_address + output_offset, output_offset, value); | 248 top_address + output_offset, output_offset, value); |
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494 __ push(ip); | 494 __ push(ip); |
495 __ b(&done); | 495 __ b(&done); |
496 ASSERT(masm()->pc_offset() - start == table_entry_size_); | 496 ASSERT(masm()->pc_offset() - start == table_entry_size_); |
497 } | 497 } |
498 __ bind(&done); | 498 __ bind(&done); |
499 } | 499 } |
500 | 500 |
501 #undef __ | 501 #undef __ |
502 | 502 |
503 } } // namespace v8::internal | 503 } } // namespace v8::internal |
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