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[PATCH] Don't allow FSM threader to create irreducible loops unless it eliminates...
authorJeff Law <law@redhat.com>
Mon, 19 Oct 2015 16:24:00 +0000 (10:24 -0600)
committerJeff Law <law@gcc.gnu.org>
Mon, 19 Oct 2015 16:24:00 +0000 (10:24 -0600)
commita2f6018f329c3629795c2006ba6684b083c19fcb
tree9e9d4d68b0a48de690a58abe53fae6e6f4dac8c0tree
parente6503e0a45efcea6a0cdc5aeab165e084b0eb624commit | diff
[PATCH] Don't allow FSM threader to create irreducible loops unless it eliminates a multi-way branch

* tree-ssa-threadupdate.c (valid_jump_thread_path): Reject paths
that create irreducible loops unless the path elimiantes a multiway
branch.

From-SVN: r228974
gcc/ChangeLog diff | blob | history
gcc/tree-ssa-threadupdate.c diff | blob | history