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Commit 259ee451 authored by Richard Biener's avatar Richard Biener Committed by Richard Biener
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re PR tree-optimization/56175 (Issue with combine phase on x86.) 

2013-02-25  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/56175
	* tree-ssa-forwprop.c (hoist_conversion_for_bitop_p): New predicate,
	split out from ...
	(simplify_bitwise_binary): ... here.  Also guard the conversion
	of (type) X op CST to (type) (X op ((type-x) CST)) with it.

	* gcc.dg/tree-ssa/forwprop-24.c: New testcase.

From-SVN: r196263
parent 5621a5d7
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