forked from OSchip/llvm-project
19d64138e6
The problem here is in the "sliding" code in ValueObjectChild::UpdateValue. It modifies m_bitfield_bit_offset and m_value to ensure the bitfield value fits the window given by the underlying type. However, this is broken next time UpdateValue is called, because it updates the m_value value from the parent. However, the value cannot be slid again because the m_bitfield_bit_offset is already modified. It seems this can happen only under specific circumstances. One way to trigger is is to run an expression which can be interpreted (jitting it causes a new StackFrame and ValueObject variables to be created). I fix this bug by modifying m_byte_offset instead of m_scalar, and ensuring the changes are folded into m_scalar regardless of how many times UpdateValue is called. Differential Revision: https://reviews.llvm.org/D88992 |
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| CMakeLists.txt | ||
| lit.cfg.py | ||
| lit.site.cfg.py.in | ||