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author	rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4>
	Tue, 1 Aug 2017 10:47:14 +0000 (10:47 +0000)
committer	rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4>
	Tue, 1 Aug 2017 10:47:14 +0000 (10:47 +0000)
commit	801a5e7fca9cd691d8c781dafa0c5e5c8ab962c5
tree	6180256fcd038c7f361f782de52817a7c47b4fb4	tree
parent	accb01da6d6bb17ac984c409d2881d4c4ece0d3f	commit \| diff

2017-08-01 Richard Biener <rguenther@suse.de>

* tree-ssa-pre.c (print_pre_expr): Handle NULL expr.
(compute_antic): Seed worklist with exit block predecessors.
* cfganal.c (dfs_find_deadend): For a cycle return the source
of the edge closing it.

* gcc.dg/tree-ssa/ssa-dce-3.c: Adjust.
* gcc.dg/tree-ssa/split-path-5.c: Remove case with just dead
endless loop.
* gcc.dg/uninit-23.c: Adjust.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@250767 138bc75d-0d04-0410-961f-82ee72b054a4

gcc/ChangeLog		diff \| blob \| blame \| history
gcc/cfganal.c		diff \| blob \| blame \| history
gcc/testsuite/ChangeLog		diff \| blob \| blame \| history
gcc/testsuite/gcc.dg/tree-ssa/split-path-5.c		diff \| blob \| blame \| history
gcc/testsuite/gcc.dg/tree-ssa/ssa-dce-3.c		diff \| blob \| blame \| history
gcc/testsuite/gcc.dg/uninit-23.c		diff \| blob \| blame \| history
gcc/tree-ssa-pre.c		diff \| blob \| blame \| history

Mirror of https://gcc.gnu.org/git/gcc.git

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