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opt_ffinv: Fix use after free.

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This commit is contained in:
Marcelina Kościelnicka 2022-06-13 12:22:59 +02:00
parent ddc8044655
commit 1ff0e1a58a
1 changed files with 6 additions and 3 deletions
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9
passes/opt/opt_ffinv.cc
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@ -201,10 +201,13 @@ struct OptFfInvWorker
{ {
log("Discovering LUTs.\n"); log("Discovering LUTs.\n");
for (Cell *cell : module->selected_cells()) { std::vector<Cell *> ffs;
if (!RTLIL::builtin_ff_cell_types().count(cell->type))
continue;
for (Cell *cell : module->selected_cells())
if (RTLIL::builtin_ff_cell_types().count(cell->type))
ffs.push_back(cell);
for (Cell *cell : ffs) {
FfData ff(&initvals, cell); FfData ff(&initvals, cell);
if (ff.has_sr) if (ff.has_sr)
continue; continue;