| 568 | } |
| 569 | |
| 570 | int64 BeIRCodeGen::ReadSLEB128() |
| 571 | { |
| 572 | int64 val = 0; |
| 573 | int64 shift = 0; |
| 574 | uint8 byteVal; |
| 575 | do |
| 576 | { |
| 577 | byteVal = mStream->Read(); |
| 578 | val |= ((int64)(byteVal & 0x7f)) << shift; |
| 579 | shift += 7; |
| 580 | } while (byteVal >= 128); |
| 581 | // Sign extend negative numbers. |
| 582 | if ((byteVal & 0x40) && (shift < 64)) |
| 583 | val |= (-1ULL) << shift; |
| 584 | return val; |
| 585 | } |
| 586 | |
| 587 | void BeIRCodeGen::Read(StringImpl& str) |
| 588 | { |