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author	rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4>
	Wed, 20 Aug 2008 16:01:59 +0000 (16:01 +0000)
committer	rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4>
	Wed, 20 Aug 2008 16:01:59 +0000 (16:01 +0000)
commit	43ffec670f9e7fe67294493fd8b839dbd79d8eec
tree	419cd5f1c04c0deebf41c1385131c1fc52352584	tree \| snapshot
parent	bcc7452f81eb1949dd461243646d5e1812adcd6d	commit \| diff

2008-08-20 Richard Guenther <rguenther@suse.de>

* tree-vrp.c (op_with_constant_singleton_value_range): New function.
(extract_range_from_binary_expr): Fall back to constant propagation.
(extract_range_from_unary_expr): Likewise.

* gcc.dg/tree-ssa/pr21829.c: Scan optimized and cddce2 dumps
instead of phicprop2. Make sure all is fine after cddce2,
add an XFAILed scan for merging the two remaining ifs.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@139326 138bc75d-0d04-0410-961f-82ee72b054a4

gcc/ChangeLog		diff \| blob \| history
gcc/testsuite/ChangeLog		diff \| blob \| history
gcc/testsuite/gcc.dg/tree-ssa/pr21829.c		diff \| blob \| history
gcc/tree-vrp.c		diff \| blob \| history

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