https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87242
rpluim at gmail dot com changed:
What |Removed |Added
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CC| |rpluim at gmail dot com
--- Comment #6 from rpluim at gmail dot com ---
Based on my bisection of gcc using the same emacs test case, this was fixed by:
commit e98da821c1ee4450bbe40a0278cd75803706aa7c (HEAD, refs/bisect/new)
Author: hubicka <address@hidden>
Date: Sun Dec 20 05:50:29 2015 +0000
PR middle-end/65337
* tree-ssa-dce.c (bb_postorder): New static var.
(forward_edge_to_pdom): Remove.
(remove_dead_stmt): Instead of redirecting edges only keep an
edge
on a path to nearest live BB.
(eliminate_unnecessary_stmts): Free bb_postorder.
* cfganal.c (dfs_find_deadend): Add START_POINTES.
* cfganal.h (inverted_post_order_compute): Update prototype.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/address@hidden
138bc75d-0d04-0410-961f-82ee72b054a4
