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author	Aldy Hernandez <aldyh@redhat.com>
	Tue, 31 Jan 2017 10:30:47 +0000 (10:30 +0000)
committer	Aldy Hernandez <aldyh@gcc.gnu.org>
	Tue, 31 Jan 2017 10:30:47 +0000 (10:30 +0000)
commit	8b670f93ab11361ae88a22fea4f96c770afb6311
tree	36ec292abbd9b98c6a30917ff5375daaefcbd37e	tree \| snapshot
parent	4727e06bb7c047a10aa502c829b7e4b519d8082b	commit \| diff

re PR tree-optimization/71691 (wrong code at -O3 in both 32-bit and 64-bit modes on x86_64-linux-gnu (Floating point exception))

PR tree-optimization/71691
* bitmap.h (class auto_bitmap): New.
* tree-ssa-loop-unswitch.c (tree_may_unswitch_on): Call
is_maybe_undefined instead of ssa_undefined_value_p.

From-SVN: r245057

gcc/ChangeLog		diff \| blob \| blame \| history
gcc/bitmap.h		diff \| blob \| blame \| history
gcc/testsuite/ChangeLog		diff \| blob \| blame \| history
gcc/testsuite/gcc.dg/loop-unswitch-1.c		diff \| blob \| blame \| history
gcc/testsuite/gcc.dg/loop-unswitch-5.c	[new file with mode: 0644]	blob
gcc/tree-ssa-loop-unswitch.c		diff \| blob \| blame \| history

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