I am looking for code that corresponds to freeing memory for BBs and Edges.
For example, I know to allocate a chunk of memory to hold BB information is
done by "ggc_alloc_cleared()". But after a function analysis/optimization is
done, the memory should be freed. I tried to read code in
rest_of_clean_state() in passes.c, which calls free_basic_block_vars(). But
I did not see it actually free memory usage.
Can someone show me the procedure related to the above process?
Thanks,
Sean
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