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author	Richard Biener <rguenther@suse.de>
	Wed, 4 Jun 2014 11:59:45 +0000 (11:59 +0000)
committer	Richard Biener <rguenth@gcc.gnu.org>
	Wed, 4 Jun 2014 11:59:45 +0000 (11:59 +0000)
commit	29006014264a5ae4821a33301928c9c0f1cf14ff
tree	d64420f0181195de5eba217c7b13268f8d492c65	tree
parent	c403aa6dce94e530c0b233118ecd9b7896be8dc7	commit \| diff

backport: re PR tree-optimization/57230 (tree-ssa-strlen incorrectly optimizes a strlen to 0)

2014-06-04 Richard Biener <rguenther@suse.de>

Backport from mainline
2013-05-13 Jakub Jelinek <jakub@redhat.com>

PR tree-optimization/57230
* tree-ssa-strlen.c (handle_char_store): Add missing integer_zerop
check.

* gcc.dg/strlenopt-23.c: New test.

From-SVN: r211225

gcc/ChangeLog		diff \| blob \| blame \| history
gcc/testsuite/ChangeLog		diff \| blob \| blame \| history
gcc/testsuite/gcc.dg/strlenopt-23.c	[new file with mode: 0644]	blob
gcc/tree-ssa-strlen.c		diff \| blob \| blame \| history

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