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Issue 7569009: Clean up TranslationIterator and DeoptimizationInputDataPrint. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: svn update Created 9 years, 4 months ago
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1 // Copyright 2011 the V8 project authors. All rights reserved. 1 // Copyright 2011 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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1176 // each byte to indicate whether or not more bytes follow. 1176 // each byte to indicate whether or not more bytes follow.
1177 do { 1177 do {
1178 uint32_t next = bits >> 7; 1178 uint32_t next = bits >> 7;
1179 contents_.Add(((bits << 1) & 0xFF) | (next != 0)); 1179 contents_.Add(((bits << 1) & 0xFF) | (next != 0));
1180 bits = next; 1180 bits = next;
1181 } while (bits != 0); 1181 } while (bits != 0);
1182 } 1182 }
1183 1183
1184 1184
1185 int32_t TranslationIterator::Next() { 1185 int32_t TranslationIterator::Next() {
1186 ASSERT(HasNext());
1187 // Run through the bytes until we reach one with a least significant 1186 // Run through the bytes until we reach one with a least significant
1188 // bit of zero (marks the end). 1187 // bit of zero (marks the end).
1189 uint32_t bits = 0; 1188 uint32_t bits = 0;
1190 for (int i = 0; true; i += 7) { 1189 for (int i = 0; true; i += 7) {
1190 ASSERT(HasNext());
1191 uint8_t next = buffer_->get(index_++); 1191 uint8_t next = buffer_->get(index_++);
1192 bits |= (next >> 1) << i; 1192 bits |= (next >> 1) << i;
1193 if ((next & 1) == 0) break; 1193 if ((next & 1) == 0) break;
1194 } 1194 }
1195 // The bits encode the sign in the least significant bit. 1195 // The bits encode the sign in the least significant bit.
1196 bool is_negative = (bits & 1) == 1; 1196 bool is_negative = (bits & 1) == 1;
1197 int32_t result = bits >> 1; 1197 int32_t result = bits >> 1;
1198 return is_negative ? -result : result; 1198 return is_negative ? -result : result;
1199 } 1199 }
1200 1200
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1464 1464
1465 void DeoptimizedFrameInfo::Iterate(ObjectVisitor* v) { 1465 void DeoptimizedFrameInfo::Iterate(ObjectVisitor* v) {
1466 v->VisitPointer(BitCast<Object**>(&function_)); 1466 v->VisitPointer(BitCast<Object**>(&function_));
1467 v->VisitPointers(parameters_, parameters_ + parameters_count_); 1467 v->VisitPointers(parameters_, parameters_ + parameters_count_);
1468 v->VisitPointers(expression_stack_, expression_stack_ + expression_count_); 1468 v->VisitPointers(expression_stack_, expression_stack_ + expression_count_);
1469 } 1469 }
1470 1470
1471 #endif // ENABLE_DEBUGGER_SUPPORT 1471 #endif // ENABLE_DEBUGGER_SUPPORT
1472 1472
1473 } } // namespace v8::internal 1473 } } // namespace v8::internal
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