On Tue, 4 Jun 2019, 李宗霖 wrote:
I use gsi_remove to remove some call statement. Then it comes out some error message after the last basic block. But I didn't use the function(ex. like dominated_by_p, get_continuation_for_phi, etc) in these error message. After that, I add bitmap_set_bit to fix, but it still the same.
The description is super vague... If you look at other places in the compiler that use gsi_remove, there are often some other necessary cleanups next to it, typically unlink_stmt_vdef or release_defs, but there can be others depending on the type of statement, the pass, etc. The issue may not manifest immediately but only the next time something tries to use a datastructure that wasn't updated. It isn't clear what bitmap_set_bit has to do with anything, without context.
-- Marc Glisse
