diff options
| author | Xiretza <xiretza@xiretza.xyz> | 2021-03-16 16:42:14 +0100 |
|---|---|---|
| committer | Zachary Snow <zachary.j.snow@gmail.com> | 2021-03-18 20:52:36 -0400 |
| commit | 0c66141ed25b0af229551f9ce8fe844be1e88bf3 (patch) | |
| tree | f1cf91507dc5fb20ae075f2fd8c28ba7d9d86299 /guidelines/UnitTests | |
| parent | 3a12617ec0713aeb81fbf4beede804545f762a1f (diff) | |
| download | yosys-0c66141ed25b0af229551f9ce8fe844be1e88bf3.tar.gz yosys-0c66141ed25b0af229551f9ce8fe844be1e88bf3.tar.bz2 yosys-0c66141ed25b0af229551f9ce8fe844be1e88bf3.zip | |
verilog: rebuild user_type_stack from globals before parsing file
This was actually a ticking UB bomb: after running the parser, the type
maps contain pointers to children of the current AST, which is
recursively deleted after the pass has executed. This leaves the
pointers in user_type_stack dangling, which just happened to never be a
problem due to another bug that causes typedefs from higher-level type
maps to never be considered.
Rebuilding the type stack from the design's globals ensures the AstNode
pointers are valid.
Diffstat (limited to 'guidelines/UnitTests')
0 files changed, 0 insertions, 0 deletions